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Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Total revenue	$ 617,949	$ 559,157	$ 594,599
Total costs	284,967	240,881	245,733
Research and development	87,608	71,896	57,704
Sales and marketing	56,860	51,262	47,482
General and administrative	64,603	52,618	46,054
Depreciation and amortization	7,987	8,613	9,060
Restructuring charge			2,921
Total costs and expenses	502,025	425,270	408,954
Operating income	115,924	133,887	185,645
Interest income	715	1,067	1,174
Other (loss) income, net	(562)	1,277	(1,986)
Income before income taxes	116,077	136,231	184,833
Income tax provision	30,315	31,541	68,352
Net income	$ 85,762	$ 104,690	$ 116,481
Basic earnings per share	$ 1.33	$ 1.58	$ 1.68
Diluted earnings per share	$ 1.32	$ 1.58	$ 1.68
Weighted average number of shares:
Basic	64,397	66,201	69,175
Diluted	65,103	66,434	69,424
Cloud Subscriptions
Total revenue	$ 46,831	$ 23,104	$ 9,596
Software License
Total revenue	48,855	45,368	72,313
Total costs	2,626	5,297	5,483
Maintenance
Total revenue	149,230	147,033	142,998
Services
Total revenue	360,516	329,685	326,502
Hardware
Total revenue	12,517	13,967	43,190
Total costs			32,205
Cloud Subscriptions, Maintenance and Services
Total costs	$ 282,341	$ 235,584	$ 208,045

Organization, Consolidation and Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2019

Accounting Policies [Abstract]

Organization, Consolidation and Summary of Significant Accounting Policies

1. Organization, Consolidation and Summary of Significant Accounting Policies

Organization and Business

Manhattan Associates, Inc. (“Manhattan”, the “Company”, “we”, “our”, or “us”) is a developer and provider of supply chain commerce solutions that help organizations optimize the effectiveness, efficiency, and strategic advantages of their supply chains. Our solutions consist of software, services, and hardware, which coordinate people, workflows, assets, events, and tasks holistically across the functions linked in a supply chain from planning through execution. These solutions also help coordinate the actions, data exchange, and communication of participants in supply chain ecosystems, such as manufacturers, suppliers, distributors, trading partners, transportation providers, channels (such as catalogers, store retailers, and Web outlets), and consumers.

Our operations are in North and South America (the “Americas"), Europe (EMEA), and the Asia/Pacific (APAC) region. The Americas operation are conducted through the Parent Company, Manhattan Associates, Inc., and its wholly-owned subsidiary, Manhattan Associates Chile Spa. The European operations are conducted through our wholly-owned subsidiaries, Manhattan Associates Limited, Manhattan Associates Europe B.V., Manhattan France SARL, and Manhattan Associates GmbH, in the United Kingdom, the Netherlands, France, and Germany, respectively. Our Asia/Pacific operations are conducted through our wholly-owned subsidiaries, Manhattan Associates Pty Ltd., Manhattan Associates KK, Manhattan Associates Software (Shanghai), Co. Ltd., Manhattan Associates Software Pte Ltd., and Manhattan Associates (India) Development Centre Private Limited in Australia, Japan, China, Singapore, and India, respectively. We occasionally sell our products and services in other countries, such as countries in Latin America, Eastern Europe, Middle East, and Asia, through our direct sales channel as well as various reseller channels.

Risks Associated with Single Business Line, Technological Advances, and Foreign Operations

We currently derive a substantial portion of our revenues from sales of our software and related services and hardware. The markets for supply chain commerce solutions are highly competitive, subject to rapid technological change, changing customer needs, frequent new product introductions, and evolving industry standards that may render existing products and services obsolete. As a result, our position in these markets could be eroded rapidly by unforeseen changes in customer requirements for application features, functions, and technologies. Our growth and future operating results will depend, in part, upon our ability to enhance existing applications and develop and introduce new applications that meet changing customer requirements that respond to competitive products and that achieve market acceptance. Any factor adversely affecting the markets for supply chain commerce solutions could have an adverse effect on our business, financial condition, results of operations and operating cash flows.

Our international business is subject to risks typical of an international business, including, but not limited to, differing economic conditions, changes in political climate, differing tax structures, other regulations and restrictions, and foreign exchange rate volatility. We recognized foreign exchange loss of $1.0 million and $1.8 million in 2019 and 2017, respectively, and a foreign exchange gain of $1.3 million in 2018. Foreign exchange rate transaction gains and losses are classified in “Other (loss) income, net” on the Consolidated Statements of Income.

In addition, we have a large development center in Bangalore, India, that does not have a natural in-market revenue hedge to mitigate currency risk to our operating expenses in India. Fluctuations in the value of other currencies, particularly the Indian Rupee, could significantly affect our revenues, expenses, operating profit and net income.

Principles of Consolidation and Foreign Currency Translation

The accompanying consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All significant intercompany balances and transactions have been eliminated in consolidation.

The financial statements of foreign subsidiaries have been translated into United States dollars in accordance with the foreign currency matters topic in the FASB’s Accounting Standards Codification (the “Codification”). Revenues and expenses from international operations were denominated in the respective local currencies and translated using the average monthly exchange rates for the year. All balance sheet accounts have been translated using the exchange rates in effect at the balance sheet date and the effect of changes in exchange rates from year to year are disclosed as a separate component of shareholders’ equity and comprehensive income.

New Accounting Pronouncements Adopted in Fiscal Year 2019

Leases

In February 2016, the Financial Accounting Standards Board (FASB) issued Accounting Standard Update (ASU) 2016-02, Leases, which establishes new Accounting Standard Codification (ASC) Topic 842 (ASC 842), to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. Under the new guidance, a lessee is required to recognize assets and liabilities for leases with lease terms of more than 12 months. Consistent with previous GAAP, the recognition, measurement, and presentation of expenses and cash flows arising from a lease by a lessee primarily depends on its classification as a finance or operating lease. However, unlike previous GAAP which required only capital leases to be recognized on the balance sheet, the new standard requires both types of leases to be recognized on the balance sheet. ASC 842 also requires disclosures to help investors and other financial statement users better understand the amount, timing, and uncertainty of cash flows arising from leases. These disclosures include qualitative and quantitative requirements, providing additional information about the amounts recorded in the financial statements.

ASC 842 was previously required to be adopted using the modified retrospective approach. However, in July 2018, the FASB issued ASU 2018-11, which allowed for retrospective application with the recognition of a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. Under this option, entities do not need to apply ASC 842 (along with its disclosure requirements) to the comparative prior periods presented.

We adopted ASC 842 in the first quarter of 2019. Accordingly, most of our operating leases (primarily for office space) are recognized as operating lease liabilities and right-of-use assets on our balance sheet. We elected to adopt certain of the optional practical expedients, including the package of practical expedients, which, among other things, gives us the option to not reassess: (1) whether expired or existing contracts are or contain leases; (2) the lease classification for expired or existing leases; and (3) initial direct costs for existing leases. We elected the optional transition method that allows for a cumulative-effect adjustment as of the adoption date coupled with the option to not restate prior periods. We also elected the practical expedient to not separate lease and non-lease components, which allows us to account for lease and non-lease components as a single lease component. We did not elect the hindsight practical expedient in our determination of the lease term for our existing leases.

Adoption of the new standard resulted in the recording of operating lease assets and operating lease liabilities of approximately $28.5 million and $31.0 million as of January 1, 2019, respectively. The adoption had no impact on retained earnings, the Consolidated Statements of Income, or the Consolidated Statements of Cash Flows.

New Accounting Pronouncements Not Yet Adopted as of December 31, 2019

Credit Impairment

In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which requires the measurement and recognition of expected credit losses for financial assets held at amortized cost, including trade receivables. ASU No. 2016-13 replaces the existing incurred loss impairment model with an expected loss model that requires the use of forward-looking information to calculate credit loss estimates. This guidance is effective for annual reporting periods beginning after December 15, 2019, with early adoption permitted. Entities will apply the amendments using a modified retrospective approach. The impact of adopting this guidance is not expected to have a material impact on our consolidated financial statements.

Summary of Significant Accounting Policies

Cash and Cash Equivalents

We consider all highly liquid investments purchased with original maturities of three months or less to be cash or cash equivalents.

Concentrations of Credit Risk

Financial instruments that potentially subject us to significant concentrations of credit risk consist principally of cash and cash equivalents and accounts receivable. We maintain cash and cash equivalents with various financial institutions. Amounts held are above the federally insured limit.

Our sales are primarily to companies located in the United States, Europe and Asia. We perform periodic credit evaluations of our customers’ financial condition and do not require collateral. Accounts receivable are due principally from large U.S., European and Asia Pacific companies under stated contract terms. Accounts receivable, net as of December 31, 2019 for the Americas, EMEA, and APAC segments were $81.8 million, $14.6 million, and $4.5 million, respectively. Accounts receivable, net as of December 31, 2018 for the Americas, EMEA, and APAC segments were $80.5 million, $15.2 million, and $4.4 million, respectively. Our top five customers in aggregate accounted for 11%, 13%, and 9% of total revenue recognized for each of the years ended December 31, 2019 (“2019”), the year ended December 31, 2018 (“2018”), and the year ended December 31, 2017 (“2017”), respectively. No single customer accounted for more than 10% of revenue in 2019, 2018, and 2017, or more than 10% of accounts receivable as of December 31, 2019 and 2018.

Fair Value Measurement

We measure our investments based on a fair value hierarchy disclosure framework that prioritizes and ranks the level of market price observability used in measuring assets and liabilities at fair value. Market price observability is affected by a number of factors, including the type of asset or liability and their characteristics. This hierarchy prioritizes the inputs into three broad levels as follows:

•

Level 1–Quoted prices in active markets for identical instruments.

•

Level 2–Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations in which all significant inputs and significant value drivers are observable in active markets.

•

Level 3–Valuations derived from valuation techniques in which one or more significant inputs or significant value drivers are unobservable.

Investments with maturities of 90 days or less from the date of purchase are classified as cash equivalents; investments with maturities of greater than 90 days from the date of purchase but less than one year are generally classified as short-term investments; and investments with maturities of one year or greater from the date of purchase are generally classified as long-term investments. Unrealized holding gains and losses are reflected as a net amount in a separate component of shareholders’ equity until realized. For the purposes of computing realized gains and losses, cost is determined on a specific identification basis.

At December 31, 2019, the Company’s cash and cash equivalents were $99.7 million and $11.0 million, respectively. We currently have no long-term investments. Cash equivalents consist of highly liquid money market funds of $9.9 million and certificates of deposit of $1.1 million. For money market funds, we use quoted prices from active markets that are classified as Level 1, the highest level of observable input in the disclosure hierarchy framework. The Company had no investments at December 31, 2019.

The carrying values of cash and cash equivalents, short-term investments, accounts receivable, and accounts payable included in the accompanying Consolidated Balance Sheets approximate their fair values principally due to the short-term maturities of these instruments.

Use of Estimates

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenue and expenses during the reporting period. Significant estimates include the allowance for doubtful accounts, which is based upon an evaluation of historical amounts written-off, the customers’ ability to pay, and general economic conditions; self-insurance accruals; impairment testing of goodwill; and our effective income tax rate (including the impact of unrecognized tax benefits) and deferred tax assets, which are based upon our expectations of future taxable income, allowable deductions, and projected tax credits. Actual results will differ from these estimates.

Revenue Recognition

We recognize revenue when we transfer control of the promised products or services to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those products or services. We derive our revenue from software licenses, cloud subscriptions, customer support services and software enhancements (“maintenance”), implementation and training services, and sales of hardware. We exclude sales and usage-based taxes from revenue.

Nature of Products and Services

Our perpetual software licenses provide the customer with a right to use the software as it exists at the time of purchase. We recognize revenue for distinct software licenses once the license period has begun and we have made the software available to the customer.

Cloud subscriptions includes software as a service (“SaaS”) and arrangements which provide customers with the right to use our software within a cloud-based environment that we provide and manage where the customer does not have the right to take possession of the software without significant penalty. SaaS and hosting revenues are recognized ratably over the contract period. For contracts that include a perpetual license and hosting services, we generally consider the arrangement as an overall service, recognized over the initial hosting term. The software license fee typically due at the outset of the arrangement is not payable again if the customer renews the hosting services, so that the customer’s option to renew the hosting services is a material right, the revenue from which, if the option is exercised, we will recognize over the applicable renewal period.

Our perpetual software licenses are typically sold with maintenance under which we provide a comprehensive 24 hours per day, 365 days per year program that provides customers with software upgrades, when and if available, which include additional or improved functionality and technological advances incorporating emerging supply chain and industry initiatives. Revenue related to maintenance is generally paid in advance and recognized ratably over the term of the agreement, typically twelve months.

Our services revenue consists of fees generated from implementation, training and application managed services, including reimbursements of out-pocket expenses in connection with our implementation services. Implementation services include system planning, design, configuration, testing, and other software implementation support, and are typically optional and distinct from our software. Following implementation, customers may purchase application managed services to support and maintain our software. Fees for our services are separately priced and are generally billed on an hourly basis, and revenue is recognized over time as the services are performed. In certain situations, we render professional services under agreements based upon a fixed fee for portions of or all of the engagement. Revenue related to fixed-fee-based services contracts is recognized over time based on the proportion performed.

As part of a complete solution, our customers periodically purchase hardware products developed and manufactured by third parties from us for use with the software licenses purchased from us. These products include computer hardware, radio frequency terminal networks, radio frequency identification (RFID) chip readers, bar code printers and scanners, and other peripherals. As we do not physically control the hardware that we sell, we are acting as an agent in the transaction and recognize our hardware revenue net of related cost. We recognize hardware revenue when control is transferred to the customer upon shipment.

Significant Judgements

Our contracts with customers typically contain promises to transfer multiple products and services to a customer. Judgement is required to determine whether each product and service is considered to be a distinct performance obligation that should be accounted for separately under the contract. We allocate the transaction price to the distinct performance obligations based on relative standalone selling price (“SSP”). We estimate SSP based on the prices charged to customers, or by using information such as market conditions and other observable inputs. However, the selling price of our software licenses is highly variable. Thus, we estimate SSP for software licenses using the residual approach, determined based on total transaction price less the SSP of other goods and services promised in the contract.

Contract Balances

Timing of invoicing to customers may differ from timing of revenue recognition. Payment terms for our software licenses vary. We have an established history of collecting under the terms of our software license contracts without providing refunds or concessions to our customers. Cloud subscriptions and maintenance are typically billed annually in advance. Services are typically billed monthly as performed. In instances where the timing of revenue recognition differs from the timing of invoicing, we have determined that our contracts generally do not include a significant financing component. The primary purpose of our invoicing terms is to provide customers with predictable ways to purchase our software and services, not to provide or receive financing. Additionally, we are applying the practical expedient to exclude from consideration any contracts with payment terms of one year or less as we rarely offer terms extending beyond one year.

Deferred revenue mainly represents amounts collected prior to having completed performance of maintenance, cloud subscriptions and professional services. $80.5 million of revenue that was included in the deferred revenue balance as of December 31, 2018 was recognized in 2019.

No revenue was recognized in 2019 from performance obligations that were satisfied in prior periods.

Remaining Performance Obligations

As of December 31, 2019, approximately $171.7 million of revenue is expected to be recognized from remaining performance obligations for cloud subscriptions, maintenance contracts, and application managed services with a non-cancelable term greater than 1 year (including deferred revenue as well as amounts that will be invoiced and recognized as revenue in future periods). We expect to recognize revenue on approximately 50% of these remaining performance obligations over the next 24 months with the balance recognized thereafter. We have elected not to provide disclosures regarding remaining performance obligations for contracts with a term of 1 year or less.

Returns and Allowances

We have not experienced significant returns or warranty claims to date and, as a result, have not recorded a provision for the cost of returns and product warranty claims.

We record an allowance for doubtful accounts based on historical experience of write-offs and a detailed assessment of accounts receivable. Additions to the allowance for doubtful accounts generally represent a sales allowance on services revenue, which are recorded to operations as a reduction to services revenue. Total amount charged to operations in 2019, 2018 and 2017 was $3.9 million, $3.9 million and $1.6 million, respectively. In estimating the allowance for doubtful accounts, we consider the age of the accounts receivable, our historical write-offs, and the creditworthiness of the customer, among other factors. Should any of these factors change, the estimates made by us will also change accordingly, which could affect the level of our future allowances. Uncollectible accounts are written off when it is determined that the specific balance is not collectible.

Deferred Commissions

We consider sales commissions to be incremental costs of obtaining a contract with a customer. We defer and recognize an asset for sales commissions related to performance obligations with an expected period of benefit of more than one year. We apply the practical expedient to expense sales commissions when the amortization period would have been one year or less. Deferred commissions were $10.4 million as of December 31, 2019, of which $7.7 million is included in other assets and $2.7 million is included in prepaid expenses. Sales commission expense is included in Sales and Marketing expense in the accompanying consolidated statement of operations. Amortization of sales commissions in 2019 was $1.9 million. No impairment losses were recognized during 2019.

Property and Equipment

Property and equipment is recorded at cost and consists of furniture, computers, other office equipment, and leasehold improvements. We depreciate the cost of furniture, computers, and other office equipment on a straight-line basis over their estimated useful lives (five years for office equipment, seven years for furniture and fixtures). Leasehold improvements are depreciated over the lesser of their useful lives or the term of the lease. Depreciation and amortization expense for 2019, 2018, and 2017 was approximately $8.0 million, $8.6 million, and $9.1 million, respectively, and was included in “Depreciation and amortization” in the Consolidated Statements of Income. Amortization expense on intangible assets in 2019, 2018 and 2017 was immaterial.

Property and equipment, at cost, consist of the following (in thousands):

	December 31,
	2019			2018
Office equipment	$	38,373		$	39,633
Furniture and fixtures		5,017			4,610
Leasehold improvement		23,534			19,430
Property and equipment, gross		66,924			63,673
Less accumulated depreciation		(44,199	)		(49,355	)
Property and equipment, net	$	22,725		$	14,318

Software Development Costs

Research and development expenses are charged to expense as incurred. For 2019, 2018 and 2017, we did not capitalize any internal research and development costs because the costs incurred between the attainment of technological feasibility for the related software product through the date when the product was available for general release to customers were insignificant.

We determine the amount of development costs capitalizable under the provisions of FASB Codification accounting for costs of computer software to be sold, leased, or marketed. Under this guidance, computer software development costs are charged to R&D expense until technological feasibility is established, after which remaining software production costs are capitalized. We have defined technological feasibility as the point in time at which we have a detailed program design or a working model of the related product, depending on the type of development efforts, and high-risk development issues have been resolved through end-to-end system testing.

Impairment of Long-Lived Assets

We review the values assigned to long-lived assets, including property and certain intangible assets, to determine whether events and circumstances have occurred which indicate that the remaining estimated useful lives may warrant revision or that the remaining balances may not be recoverable. In such reviews, undiscounted cash flows associated with these assets are compared with their carrying value to determine if a write-down to fair value is required. During 2019, 2018 and 2017, we did not recognize any impairment charges associated with our long-lived or intangible assets.

The evaluation of asset impairment requires management to make assumptions about future cash flows over the life of the asset being evaluated. These assumptions require significant judgment, and actual results may differ from assumed and estimated amounts.

Goodwill and Impairment of Goodwill

Goodwill

Goodwill represents the excess of purchase price over fair value of net identified tangible and intangible assets and liabilities acquired. We do not amortize goodwill. Instead, we test goodwill for impairment on at least an annual basis. Goodwill was $62.2 million at the end of each of the years ended December 31, 2019 and 2018.

Impairment of Goodwill

We evaluate the carrying value of goodwill annually as of December 31 and between annual evaluations if events occur or circumstances change that would more likely than not reduce the fair value of the reporting unit below its carrying amount. Such circumstances could include, but are not limited to, (1) a significant adverse change in legal factors or in business climate, (2) unanticipated competition, or (3) an adverse action or assessment by a regulator.

We applied the simplified goodwill impairment test for 2019, that permits companies to perform a qualitative assessment based on economic, industry and company-specific factors as the initial step in the annual goodwill impairment test for all or selected reporting units. Based on the results of the qualitative assessment, companies are only required to perform Step 1 of the annual impairment test for a reporting unit if the company concludes that it is not more likely than not that the unit’s fair value is less than its carrying amount. To the extent we conclude that it is more likely than not that a reporting unit’s estimated fair value is less than its carrying amount, the two-step approach is applied. The first step would require a comparison of each reporting unit’s fair value to the respective carrying value. If the carrying value exceeds the fair value, a second step is performed to measure the amount of impairment loss, if any. We did not identify any macroeconomic or industry conditions as of December 31, 2019, that would indicate that the fair value of the reporting units were more likely than not to be less than their respective carrying values. If circumstances change or events occur to indicate that it is more likely than not that the fair value of any reporting units have fallen below their carrying value, we would record an impairment charge based on that difference. We performed our periodic review of goodwill for impairment as of December 31, 2019 and 2018, and did not identify any impairment as a result of the review.

Guarantees and Indemnities

We account for guarantees in accordance with the guarantee accounting topic in the FASB Codification. Our customer contracts generally contain infringement indemnity provisions. Under those provisions, we generally agree, subject to certain exceptions, to indemnify, defend, and hold harmless the customer in connection with third party claims against the customer alleging that the customer’s use of our software products in compliance with their license infringe the third party’s patent, copyright, or other intellectual property rights. Conditions to our obligations generally include that we are provided the right to control the defense of the claims and, in general, to control settlement negotiations. Those provisions generally provide also that, if the customer is prevented from using our software because of a third party infringement claim, our sole obligation (in addition to the indemnification, defense, and hold harmless obligation referred to above) is to, at our expense, (i) procure for the customer the right to continue to use the software, (ii) to replace or modify the product so that its use by the customer does not infringe, or, if either of the foregoing are not reasonably feasible, to terminate the customer contract and provide a refund of the unamortized portion of the customer’s license fee (based on a five year amortization period). Our customer contracts sometimes also require us to indemnify, defend, and hold harmless the customer in connection with death, personal injury, or property damage claims made by third parties with respect to actions of our

personnel or contractors. The indemnity obligations contained in our customer contracts generally have no specified expiration date and no specified monetary limitation on liability. We have not previously incurred costs to settle claims or pay awards under these indemnification obligations. We account for these indemnity obligations in accordance with FASB guidance on accounting for contingencies, and record a liability for these obligations when a loss is probable and reasonably estimable. We have not recorded any liabilities for these contracts as of December 31, 2019, or 2018.

In general, in our customer software license contracts, we warrant to our customers that our software products will perform in all material respects in accordance with the standard published specifications in effect at the time of delivery of the licensed products to the customer for six months after first use of the licensed products, but no more than 24 months after execution of the license agreement. We also generally warrant in our Cloud subscription agreements that we will perform the Cloud services in all material respects as defined in the agreement during the service period. Additionally, we warrant to our customers that services will be performed consistent with generally accepted industry standards or specific service levels through completion of the agreed upon services. If necessary, we will provide for the estimated cost of product and service warranties based on specific warranty claims history. However, we have not incurred significant recurring expenses under product or service warranties. As a result, we believe the estimated fair value of these agreements is nominal. Accordingly, we have no liabilities recorded for these agreements as of December 31, 2019 and 2018.

Segment Information

We have three reportable segments as defined by the FASB Codification topic for segment reporting: Americas, EMEA, and APAC. See Note 8 for discussion of our reportable segments.

Basic and Diluted Net Income Per Share

Basic net income per share is computed using net income divided by the weighted average number of shares of common stock outstanding (“Weighted Shares”) for the period presented.

Diluted net income per share is computed using net income divided by Weighted Shares and the treasury stock method effect of common equivalent shares (“CESs”) outstanding for each period presented. In the following table, we present a reconciliation of earnings per share and the shares used in the computation of earnings per share for the years ended December 31, 2019, 2018 and 2017 (in thousands, except per share data):

	Year Ended December 31,
	2019			2018		2017
	(in thousands, except per share data)
Net income	$	85,762		$	104,690	$	116,481
Earnings per share:
Basic	$	1.33		$	1.58	$	1.68
Effect of CESs		(0.01	)		-		-
Diluted	$	1.32		$	1.58	$	1.68

Weighted average number of shares:
Basic		64,397			66,201		69,175
Effect of CESs		706			233		249
Diluted		65,103			66,434		69,424

The number of anti-dilutive CESs in 2019, 2018 and 2017 was immaterial. See Note 2 for further information on those securities.

Accumulated Other Comprehensive Income

Comprehensive income includes net income and foreign currency translation adjustments that are excluded from net income and reflected in shareholders’ equity. The entire accumulated other comprehensive income balance as of December 31, 2019 and 2018 represents foreign currency translation adjustments.

Accounting for Income Taxes

We provide for the effect of income taxes on our financial position and results of operations in accordance with the Income Taxes Topic of the Codification. Under this accounting pronouncement, income tax expense is recognized for the amount of income taxes

payable or refundable for the current year and for the change in net deferred tax assets or liabilities resulting from events that are recorded for financial reporting purposes in a different reporting period than recorded in the tax return. Management must make significant assumptions, judgments, and estimates to determine our current provision for income taxes and also, our deferred tax assets and liabilities, and any valuation allowance to be recorded against our net deferred tax asset.

Our judgments, assumptions, and estimates relative to the current provision for income tax take into account current tax laws, our interpretation of current tax laws, allowable deductions, projected tax credits, and possible outcomes of current and future audits conducted by foreign and domestic tax authorities. We do not recognize a tax benefit unless we conclude that it is more likely than not that the benefit will be sustained on audit by the taxing authority based solely on the technical merits of the associated tax position. If the recognition threshold is met, we recognize a tax benefit measured at the largest amount of the tax benefit that, in our judgment, is greater than 50 percent likely to be realized. Changes in tax law or our interpretation of tax laws and the resolution of current and future tax audits could significantly impact the amounts provided for income taxes in our financial position and results of operations. Our assumptions, judgments, and estimates relative to the value of our net deferred tax asset take into account predictions of the amount and category of future taxable income. Actual operating results and the underlying amount and category of income in future years could render our current assumptions, judgments, and estimates of recoverable net deferred taxes inaccurate, thus materially impacting our financial position and results of operations.

Equity-Based Compensation

We account for equity-based compensation in accordance with ASC 718, Compensation – Stock Compensation. See Note 2 for further information.

Advertising Costs

We expense advertising costs as incurred. Advertising expense was $2.9 million in 2018 and immaterial for 2019 and 2017.

Segment Reporting

12 Months Ended

Dec. 31, 2019

Segment Reporting [Abstract]

Segment Reporting

8. Segment Reporting

We manage our business by geographic segment and have three geographic reportable segments: the Americas, EMEA, and APAC. All segments derive revenue from the sale and implementation of our supply chain commerce solutions. The individual products sold by the segments are similar in nature and are all designed to help companies manage the effectiveness and efficiency of their supply chain commerce. We use the same accounting policies for each reportable segment. The chief executive officer and chief financial officer evaluate performance based on revenue and operating results for each reportable segment.

The Americas segment charges royalty fees to the other segments based on software licenses and cloud subscriptions sold by those reportable segments. The royalties, which totaled $4.5 million, $4.2 million, and $7.0 million in 2019, 2018 and 2017, respectively, are included in costs of revenue for each segment with a corresponding reduction in the America’s cost of revenue. The revenues represented below are from external customers only. The geography-based costs consist of costs for professional services personnel, direct sales and marketing expenses, infrastructure costs to support the employee and customer base, billing and financial systems, management and general and administrative support. There are certain corporate expenses included in the Americas segment that we do not charge to the other segments. Such expenses include research and development, certain marketing and general and administrative costs that support the global organization, and the amortization of acquired developed technology. Costs in the Americas’ segment include all research and development costs including the costs associated with our operations in India.

In accordance with the segment reporting topic of the FASB Codification, we present below financial information by reportable segment for 2019, 2018 and 2017 (in thousands):

	Year Ended December 31,
	2019								2018
	Americas		EMEA		APAC		Consolidated		Americas		EMEA		APAC		Consolidated
Revenue:
Cloud subscriptions	$	40,927	$	4,762	$	1,142	$	46,831	$	20,611	$	2,075	$	418	$	23,104
Software license		34,544		11,518		2,793		48,855		28,423		11,406		5,539		45,368
Maintenance		118,891		21,322		9,017		149,230		117,489		20,933		8,611		147,033
Services		283,008		60,618		16,890		360,516		265,165		50,328		14,192		329,685
Hardware		12,464		53		-		12,517		13,798		2		167		13,967
Total revenue		489,834		98,273		29,842		617,949		445,486		84,744		28,927		559,157

Costs and Expenses:
Cost of revenue		218,850		51,938		14,179		284,967		183,563		43,080		14,238		240,881
Operating expenses		185,399		18,635		5,037		209,071		156,793		14,484		4,499		175,776
Depreciation and amortization		6,961		766		260		7,987		7,601		743		269		8,613
Restructuring charge		-		-		-		-		-		-		-		-
Total costs and expenses		411,210		71,339		19,476		502,025		347,957		58,307		19,006		425,270
Operating income	$	78,624	$	26,934	$	10,366	$	115,924	$	97,529	$	26,437	$	9,921	$	133,887

	Year Ended December 31, 2017
	Americas		EMEA		APAC		Consolidated
Revenue:
Cloud subscriptions	$	9,274	$	322	$	-	$	9,596
Software license		44,145		22,875		5,293		72,313
Maintenance		116,426		18,710		7,862		142,998
Services		264,186		43,431		18,885		326,502
Hardware		43,118		11		61		43,190
Total revenue		477,149		85,349		32,101		594,599

Costs and Expenses:
Cost of revenue		195,152		36,124		14,457		245,733
Operating expenses		134,167		12,761		4,312		151,240
Depreciation and amortization		8,324		527		209		9,060
Restructuring charge		2,813		108		-		2,921
Total costs and expenses		340,456		49,520		18,978		408,954
Operating income	$	136,693	$	35,829	$	13,123	$	185,645

In the following table, we present goodwill, long-lived assets, and total assets by reportable segment as of December 31, 2019 and 2018 (in thousands):

	As of December 31, 2019								As of December 31, 2018
	Americas		EMEA		APAC		Consolidated		Americas		EMEA		APAC		Consolidated
Goodwill, net	$	54,766	$	5,508	$	1,963	$	62,237	$	54,766	$	5,511	$	1,963	$	62,240
Long lived assets		61,686		7,918		1,583		71,187		20,251		3,161		674		24,086
Total assets		309,662		48,008		14,609		372,279		256,948		37,777		12,425		307,150

For the years ended December 31, 2019, 2018 and 2017, we derived revenue from sales to customers outside the United States of approximately $189.1 million, $174.1 million, and $168.3 million, respectively. Our remaining revenue was derived from domestic sales.

The majority of our software license revenue (70-80%) relates to our warehouse management product group. Cloud subscriptions revenue primarily relates to our Manhattan Active omnichannel and transportation management solutions.

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2019

Income Tax Disclosure [Abstract]

Components of Deferred Tax Assets and Liabilities

We present below significant components of our deferred tax assets and liabilities as of December 31, 2019 and 2018 are as follows (in thousands):

	December 31,
	2019			2018
Deferred tax assets:
Accounts receivable	$	667		$	599
Accrued liabilities		8,083			5,793
Equity-based compensation		5,888			4,643
Capitalized costs		726			911
Accrued sales taxes		187			202
Operating lease liabilities		10,869			96
State tax credits		4,027			5,495
Foreign subsidiary net operating losses		62			175
Valuation allowance		(2,886	)		(3,846	)
Other		479			778
		28,102			14,846
Deferred tax liabilities:
Intangible assets		7,548			7,502
Depreciation		1,228			1,237
Deferred commissions		2,326			718
Operating lease right-of-use assets		10,223			-
		21,325			9,457
Net deferred tax assets	$	6,777		$	5,389

Components of Income from Domestic and Foreign Operations Before Income Tax Expense

We present below income from domestic and foreign operations before income tax expense for the years ended December 31, 2019, 2018 and 2017 are as follows (in thousands):

	Year Ended December 31,
	2019		2018		2017
Domestic	$	104,878	$	126,542	$	177,314
Foreign		11,199		9,689		7,519
Total	$	116,077	$	136,231	$	184,833

Components of Income Tax Provision

The components of our income tax provision for the years ended December 31, 2019, 2018 and 2017 are as follows (in thousands):

	Year Ended December 31,
	2019			2018			2017
Current:
Federal	$	18,682		$	22,606		$	53,998
State		5,711			6,182			6,595
Foreign		7,323			7,018			6,185
		31,716			35,806			66,778
Deferred:
Federal		(863	)		(3,127	)		1,590
State		(326	)		(674	)		35
Foreign		(212	)		(464	)		(51	)
		(1,401	)		(4,265	)		1,574
Total	$	30,315		$	31,541		$	68,352

Reconciliation of Statutory U.S. Federal Rate and Tax Effective Rates

We present below a summary of the items that cause recorded income taxes to differ from taxes computed using the statutory federal income tax rate for the years ended December 31, 2019, 2018 and 2017:

	Year Ended December 31,
	2019			2018			2017

Statutory federal income tax rate		21.0	%		21.0	%		35.0	%
Effect of:
State income tax, net of federal benefit		3.5			3.4			2.3
State credit carryforwards		1.3			0.3			(0.1	)
U.S. federal R&D tax credit		(1.9	)		(1.7	)		(0.8	)
Tax Reform		-			(0.1	)		1.5
Excess benefit of equity compensation		(0.1	)		(0.6	)		(1.0	)
Foreign-derived intangible income (FDII) deduction		(3.1	)		(1.6	)		-
Foreign operations		1.1			1.2			(0.1	)
Tax contingencies		3.7			0.5			-
Other permanent differences		1.5			1.0			0.3
Change in valuation allowance		(0.9	)		(0.2	)		(0.1	)
Income taxes		26.1	%		23.2	%		37.0	%

Reconciliation of Unrecognized Tax Benefits

A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows for the years ended December 31, 2019, 2018 and 2017 (in thousands):

	December 31,
	2019			2018			2017

Unrecognized tax benefits at January 1,	$	(7,113	)	$	(7,419	)	$	(6,938	)
Gross amount of increases in unrecognized tax benefits as a result of tax positions taken during a prior period		(2,428	)		(873	)		(789	)
Gross amount of decreases in unrecognized tax benefits as a result of tax positions taken during a prior period		445			233			145
Gross amount of increases in unrecognized tax benefits as a result of tax positions taken during the current period		(2,489	)		(78	)		-
Reductions to unrecognized tax benefits relating to settlements with taxing authorities		-			349			-
Reductions to unrecognized tax benefits as a result of a lapse of the applicable statute of limitations		346			675			163
Unrecognized tax benefits at December 31,	$	(11,239	)	$	(7,113	)	$	(7,419	)

Quarterly Results of Operations (Unaudited)

12 Months Ended

Dec. 31, 2019

Quarterly Financial Information Disclosure [Abstract]

Quarterly Results of Operations (Unaudited)

11. Quarterly Results of Operations (Unaudited)

In the table below, we present our quarterly results of operations for 2019 and 2018. The unaudited quarterly results have been prepared on substantially the same basis as the audited Consolidated Financial Statements.

	Quarter Ended
	Mar 31, 2018		Jun 30, 2018		Sep 30, 2018		Dec 31, 2018			Mar 31, 2019			Jun 30, 2019			Sep 30, 2019		Dec 31, 2019
	(In thousands, except per share data)
Statements of Income Data:
Revenue:
Cloud subscriptions	$	4,469	$	5,377	$	6,455	$	6,803		$	7,859		$	9,009		$	14,242	$	15,721
Software license		7,555		12,973		11,526		13,314			12,414			11,721			15,486		9,234
Maintenance		36,397		36,993		37,177		36,466			36,099			37,323			37,763		38,045
Services		78,757		82,267		84,136		84,525			88,631			93,951			91,626		86,308
Hardware		3,391		4,261		3,057		3,258			3,401			2,337			3,158		3,621
Total revenue		130,569		141,871		142,351		144,366			148,404			154,341			162,275		152,929
Costs and expenses:
Cost of software license		1,308		2,096		1,211		682			592			623			748		663
Cost of cloud subscriptions, maintenance and services		56,486		56,985		59,975		62,138			66,578			70,955			73,618		71,190
Research and development		17,059		18,176		18,453		18,208			21,213			21,997			22,614		21,784
Sales and marketing		12,884		13,809		10,726		13,843			14,781			14,520			12,125		15,434
General and administrative		12,800		12,885		13,711		13,222			15,050			16,805			16,236		16,512
Depreciation and amortization		2,202		2,235		2,179		1,997			1,914			1,859			1,937		2,277
Total costs and expenses		102,739		106,186		106,255		110,090			120,128			126,759			127,278		127,860
Operating income		27,830		35,685		36,096		34,276			28,276			27,582			34,997		25,069
Other income (loss), net		721		986		1,538		(901	)		(371	)		(71	)		810		(215	)
Income before income taxes		28,551		36,671		37,634		33,375			27,905			27,511			35,807		24,854
Income tax provision		5,899		9,003		9,179		7,460			6,933			6,586			8,700		8,096
Net income	$	22,652	$	27,668	$	28,455	$	25,915		$	20,972		$	20,925		$	27,107	$	16,758
Basic earnings per share	$	0.34	$	0.42	$	0.43	$	0.40		$	0.32		$	0.32		$	0.42	$	0.26
Diluted earnings per share	$	0.33	$	0.42	$	0.43	$	0.40		$	0.32		$	0.32		$	0.42	$	0.26
Shares used in computing basic earnings per share		67,553		66,429		65,658		65,199			64,909			64,623			64,247		63,822
Shares used in computing diluted earnings per share		67,736		66,535		65,901		65,526			65,204			65,093			64,992		64,807

Document and Entity Information - USD ($)	12 Months Ended
Document and Entity Information - USD ($)	Dec. 31, 2019	Jan. 31, 2020	Jun. 30, 2019
Cover [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Trading Symbol	MANH
Entity Registrant Name	Manhattan Associates, Inc.
Entity Central Index Key	0001056696
Current Fiscal Year End Date	--12-31
Entity Incorporation, State or Country Code	2Q
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		63,767,447
Entity Public Float			$ 4,459,448,905
Entity Interactive Data Current	Yes
Document Annual Report	true
Document Transition Report	false
Entity File Number	000-23999
Entity Tax Identification Number	58-2373424
Entity Address, Address Line One	2300 Windy Ridge Parkway
Entity Address, Address Line Two	Tenth Floor
Entity Address, City or Town	Atlanta
Entity Address, State or Province	GA
Entity Address, Postal Zip Code	30339
City Area Code	770
Local Phone Number	955-7070
Title of each class	Common Stock, $.01 par value per share
Name of each exchange on which registered	NASDAQ
Documents Incorporated by Reference	The Registrant’s definitive Proxy Statement for the Annual Meeting of Shareholders to be held May 14, 2020 is incorporated by reference in Part III of this Form 10-K to the extent stated herein.

Organization, Consolidation and Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2019

Accounting Policies [Abstract]

Risks Associated with Single Business Line, Technological Advances, and Foreign Operations

Principles of Consolidation and Foreign Currency Translation

New Accounting Pronouncements Adopted in Fiscal Year 2019

Leases

New Accounting Pronouncements Not Yet Adopted

New Accounting Pronouncements Not Yet Adopted as of December 31, 2019

Credit Impairment

Cash and Cash Equivalents

We consider all highly liquid investments purchased with original maturities of three months or less to be cash or cash equivalents.

Concentrations of Credit Risk

Fair Value Measurement

•

Level 1–Quoted prices in active markets for identical instruments.

•

Level 3–Valuations derived from valuation techniques in which one or more significant inputs or significant value drivers are unobservable.

Use of Estimates

Revenue Recognition

Nature of Products and Services

Significant Judgements

Contract Balances

No revenue was recognized in 2019 from performance obligations that were satisfied in prior periods.

Remaining Performance Obligations

Deferred Commissions

Returns and Allowances

We have not experienced significant returns or warranty claims to date and, as a result, have not recorded a provision for the cost of returns and product warranty claims.

Property and Equipment

Property and equipment, at cost, consist of the following (in thousands):

	December 31,
	2019			2018
Office equipment	$	38,373		$	39,633
Furniture and fixtures		5,017			4,610
Leasehold improvement		23,534			19,430
Property and equipment, gross		66,924			63,673
Less accumulated depreciation		(44,199	)		(49,355	)
Property and equipment, net	$	22,725		$	14,318

Software Development Costs

Impairment of Long-Lived Assets

Goodwill and Impairment of Goodwill

Goodwill

Impairment of Goodwill

Guarantees and Indemnities

Segment Information

We have three reportable segments as defined by the FASB Codification topic for segment reporting: Americas, EMEA, and APAC. See Note 8 for discussion of our reportable segments.

Basic and Diluted Net Income Per Share

Basic net income per share is computed using net income divided by the weighted average number of shares of common stock outstanding (“Weighted Shares”) for the period presented.

	Year Ended December 31,
	2019			2018		2017
	(in thousands, except per share data)
Net income	$	85,762		$	104,690	$	116,481
Earnings per share:
Basic	$	1.33		$	1.58	$	1.68
Effect of CESs		(0.01	)		-		-
Diluted	$	1.32		$	1.58	$	1.68

Weighted average number of shares:
Basic		64,397			66,201		69,175
Effect of CESs		706			233		249
Diluted		65,103			66,434		69,424

The number of anti-dilutive CESs in 2019, 2018 and 2017 was immaterial. See Note 2 for further information on those securities.

Accumulated Other Comprehensive Income

Accounting for Income Taxes

Equity-Based Compensation

We account for equity-based compensation in accordance with ASC 718, Compensation – Stock Compensation. See Note 2 for further information.

Advertising Costs

We expense advertising costs as incurred. Advertising expense was $2.9 million in 2018 and immaterial for 2019 and 2017.

Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Balance at Dec. 31, 2016	$ 169,366	$ 702		$ 184,558	$ (15,894)
Balance (in shares) at Dec. 31, 2016		70,233,955
Repurchase of common stock	(131,707)	$ (28)	$ (18,050)	(113,629)
Repurchase of common stock (in shares)		(2,829,850)
Restricted stock units issuance		$ 4	(4)
Restricted stock units issuance (in shares)		372,033
Equity-based compensation	16,229		16,229
Adjustment due to adoption of ASC \| ASC 2016-09	532		1,825	(1,293)
Foreign currency translation adjustment	4,055				4,055
Net income	116,481			116,481
Balance at Dec. 31, 2017	174,956	$ 678		186,117	(11,839)
Balance (in shares) at Dec. 31, 2017		67,776,138
Repurchase of common stock	(149,322)	$ (33)	(19,860)	(129,429)
Repurchase of common stock (in shares)		(3,262,835)
Restricted stock units issuance		$ 4	(4)
Restricted stock units issuance (in shares)		347,116
Equity-based compensation	19,864		19,864
Adjustment due to adoption of ASC \| ASC 2014-09	1,981			1,981
Foreign currency translation adjustment	(5,022)				(5,022)
Net income	104,690			104,690
Balance at Dec. 31, 2018	147,147	$ 649		163,359	(16,861)
Balance (in shares) at Dec. 31, 2018		64,860,419
Repurchase of common stock	(121,487)	$ (18)	(31,837)	(89,631)
Repurchase of common stock (in shares)		(1,751,507)
Restricted stock units issuance		$ 4	(4)
Restricted stock units issuance (in shares)		348,074
Equity-based compensation	31,841		$ 31,841
Foreign currency translation adjustment	(985)				(985)
Net income	85,762			85,762
Balance at Dec. 31, 2019	$ 142,278	$ 635		$ 159,490	$ (17,847)
Balance (in shares) at Dec. 31, 2019		63,456,986

Segment Reporting (Tables)

12 Months Ended

Dec. 31, 2019

Segment Reporting [Abstract]

Revenues, Expenses and Operating Income by Reporting Segment

In accordance with the segment reporting topic of the FASB Codification, we present below financial information by reportable segment for 2019, 2018 and 2017 (in thousands):

	Year Ended December 31,
	2019								2018
	Americas		EMEA		APAC		Consolidated		Americas		EMEA		APAC		Consolidated
Revenue:
Cloud subscriptions	$	40,927	$	4,762	$	1,142	$	46,831	$	20,611	$	2,075	$	418	$	23,104
Software license		34,544		11,518		2,793		48,855		28,423		11,406		5,539		45,368
Maintenance		118,891		21,322		9,017		149,230		117,489		20,933		8,611		147,033
Services		283,008		60,618		16,890		360,516		265,165		50,328		14,192		329,685
Hardware		12,464		53		-		12,517		13,798		2		167		13,967
Total revenue		489,834		98,273		29,842		617,949		445,486		84,744		28,927		559,157

Costs and Expenses:
Cost of revenue		218,850		51,938		14,179		284,967		183,563		43,080		14,238		240,881
Operating expenses		185,399		18,635		5,037		209,071		156,793		14,484		4,499		175,776
Depreciation and amortization		6,961		766		260		7,987		7,601		743		269		8,613
Restructuring charge		-		-		-		-		-		-		-		-
Total costs and expenses		411,210		71,339		19,476		502,025		347,957		58,307		19,006		425,270
Operating income	$	78,624	$	26,934	$	10,366	$	115,924	$	97,529	$	26,437	$	9,921	$	133,887

	Year Ended December 31, 2017
	Americas		EMEA		APAC		Consolidated
Revenue:
Cloud subscriptions	$	9,274	$	322	$	-	$	9,596
Software license		44,145		22,875		5,293		72,313
Maintenance		116,426		18,710		7,862		142,998
Services		264,186		43,431		18,885		326,502
Hardware		43,118		11		61		43,190
Total revenue		477,149		85,349		32,101		594,599

Costs and Expenses:
Cost of revenue		195,152		36,124		14,457		245,733
Operating expenses		134,167		12,761		4,312		151,240
Depreciation and amortization		8,324		527		209		9,060
Restructuring charge		2,813		108		-		2,921
Total costs and expenses		340,456		49,520		18,978		408,954
Operating income	$	136,693	$	35,829	$	13,123	$	185,645

Goodwill, Long-Lived Assets and Total Assets by Reportable Segment

In the following table, we present goodwill, long-lived assets, and total assets by reportable segment as of December 31, 2019 and 2018 (in thousands):

	As of December 31, 2019								As of December 31, 2018
	Americas		EMEA		APAC		Consolidated		Americas		EMEA		APAC		Consolidated
Goodwill, net	$	54,766	$	5,508	$	1,963	$	62,237	$	54,766	$	5,511	$	1,963	$	62,240
Long lived assets		61,686		7,918		1,583		71,187		20,251		3,161		674		24,086
Total assets		309,662		48,008		14,609		372,279		256,948		37,777		12,425		307,150

Components of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Deferred tax assets:
Accounts receivable	$ 667	$ 599
Accrued liabilities	8,083	5,793
Equity-based compensation	5,888	4,643
Capitalized costs	726	911
Accrued sales taxes	187	202
Operating lease liabilities	10,869	96
State tax credits	4,027	5,495
Foreign subsidiary net operating losses	62	175
Valuation allowance	(2,886)	(3,846)
Other	479	778
Deferred Tax Assets, Net of Valuation Allowance, Total	28,102	14,846
Deferred tax liabilities:
Intangible assets	7,548	7,502
Depreciation	1,228	1,237
Deferred commissions	2,326	718
Operating lease right-of-use assets	10,223
Deferred Tax Liabilities, Net, Total	21,325	9,457
Net deferred tax assets	$ 6,777	$ 5,389

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current Assets:
Cash and cash equivalents	$ 110,678	$ 99,126
Short-term investments		1,440
Accounts receivable, net of allowance of $2,826 and $2,589 at December 31, 2019 and December 31, 2018, respectively	100,937	100,108
Income taxes receivable	1,332	767
Prepaid expenses	14,159	11,171
Other current assets	4,935	2,770
Total current assets	232,041	215,382
Property and equipment, net	22,725	14,318
Operating lease right-of-use assets	35,896
Goodwill, net	62,237	62,240
Deferred income taxes	6,814	5,442
Other assets	12,566	9,768
Total assets	372,279	307,150
Current liabilities:
Accounts payable	20,561	18,181
Accrued compensation and benefits	45,991	29,485
Accrued and other liabilities	19,325	12,161
Deferred revenue	94,371	81,894
Income taxes payable	1,348	3,543
Total current liabilities	181,596	145,264
Operating lease liabilities, long-term	32,416
Deferred income taxes	37	53
Other non-current liabilities	15,952	14,686
Commitments and contingencies (Note 5)
Shareholders' equity:
Preferred stock, no par value; 20,000,000 shares authorized, no shares issued or outstanding at December 31, 2019 and December 31, 2018
Common stock, $.01 par value; 200,000,000 shares authorized; 63,456,986 and 64,860,419 shares issued and outstanding at December 31, 2019 and December 31, 2018, respectively	635	649
Retained earnings	159,490	163,359
Accumulated other comprehensive loss	(17,847)	(16,861)
Total shareholders' equity	142,278	147,147
Total liabilities and shareholders' equity	$ 372,279	$ 307,150

SCHEDULE II-VALUATION AND QUALIFYING ACCOUNTS

12 Months Ended

Dec. 31, 2019

Valuation And Qualifying Accounts [Abstract]

SCHEDULE II-VALUATION AND QUALIFYING ACCOUNTS

SCHEDULE II

MANHATTAN ASSOCIATES, INC. AND SUBSIDIARIES

VALUATION AND QUALIFYING ACCOUNTS

(in thousands)

Classification:	Balance at Beginning of Period		Additions Charged to Operations		Net Deductions			Balance at End of Period
Allowance for Doubtful Accounts
For the year ended:
December 31, 2017	$	3,595	$	1,574	$	2,477	(a)	$	2,692
December 31, 2018	$	2,692	$	3,876	$	3,979	(a)	$	2,589
December 31, 2019	$	2,589	$	3,858	$	3,621	(a)	$	2,826

Deferred Tax Asset Valuation Allowance
For the year ended:
December 31, 2017	$	4,031	$	53	$	-	(b)	$	4,084
December 31, 2018	$	4,084	$	-	$	238	(b)	$	3,846
December 31, 2019	$	3,846	$	-	$	960	(b)	$	2,886

Restructuring Charge Accrual
For the year ended:
December 31, 2017	$	-	$	2,921	$	2,921	(c)	$	-

(a)	Represents write-offs of accounts, net of recoveries.

(b)	Represents current year releases credited to expenses and current year reductions due to decreases in net deferred tax assets.

Organization, Consolidation and Summary of Significant Accounting Policies - Additional Information (Detail)	3 Months Ended								12 Months Ended
	Dec. 31, 2019 USD ($)	Sep. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Sep. 30, 2018 USD ($)	Jun. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2019 USD ($) Customer Segment	Dec. 31, 2018 USD ($) Customer	Dec. 31, 2017 USD ($) Customer	Jan. 01, 2019 USD ($)
Organization Consolidation And Summary Of Significant Accounting Policies [Line Items]
Operating lease assets	$ 35,896,000								$ 35,896,000			$ 28,500,000
Operating lease liabilities	39,097,000								$ 39,097,000			$ 31,000,000.0
Percentage of revenue accounted for by top 5 customers									11.00%	13.00%	9.00%
Number of customers accounting for more than 10% of revenue \| Customer									0	0	0
Number of customers accounting for more than 10% of accounts receivable \| Customer									0	0
Cash	99,700,000								$ 99,700,000
Cash equivalents	11,000,000.0								11,000,000.0
Long-term investments	0								0
Money market funds	9,900,000								9,900,000
Investments	0								0
Revenue recognized in the reporting period from performance obligations satisfied in prior periods									0
Revenue expected to be recognized from remaining performance obligations	171,700,000								$ 171,700,000
Remaining performance obligation, explanation									We expect to recognize revenue on approximately 50% of these remaining performance obligations over the next 24 months with the balance recognized thereafter.
Percentage of expected revenue recognition									50.00%
Allowance for doubtful accounts recorded to operations									$ 3,900,000	$ 3,900,000	$ 1,600,000
Revenue, practical expedient, remaining performance obligation, description									We apply the practical expedient to expense sales commissions when the amortization period would have been one year or less.
Amortization of sales commissions									$ 1,900,000
Impairment losses									0
Depreciation and amortization expense	2,277,000	$ 1,937,000	$ 1,859,000	$ 1,914,000	$ 1,997,000	$ 2,179,000	$ 2,235,000	$ 2,202,000	7,987,000	8,613,000	9,060,000
Goodwill, net	62,237,000				62,240,000				$ 62,237,000	62,240,000
Customer's license amortization period									5 years
Number of reportable segments \| Segment									3
Advertising expense										2,900,000
Office Equipment
Organization Consolidation And Summary Of Significant Accounting Policies [Line Items]
Property and equipment estimated useful life									5 years
Furniture and Fixtures
Organization Consolidation And Summary Of Significant Accounting Policies [Line Items]
Property and equipment estimated useful life									7 years
Leasehold Improvements
Organization Consolidation And Summary Of Significant Accounting Policies [Line Items]
Leasehold improvements useful life									Lesser of their useful lives or the term of the lease.
Balance as of December 31, 2018
Organization Consolidation And Summary Of Significant Accounting Policies [Line Items]
Deferred revenue recognized									$ 80,500,000
Sales Commission
Organization Consolidation And Summary Of Significant Accounting Policies [Line Items]
Deferred commissions	10,400,000								10,400,000
Sales Commission \| Other Assets
Organization Consolidation And Summary Of Significant Accounting Policies [Line Items]
Deferred commissions	7,700,000								7,700,000
Sales Commission \| Prepaid Expenses
Organization Consolidation And Summary Of Significant Accounting Policies [Line Items]
Deferred commissions	2,700,000								2,700,000
Americas
Organization Consolidation And Summary Of Significant Accounting Policies [Line Items]
Accounts receivable, net	81,800,000				80,500,000				81,800,000	80,500,000
Depreciation and amortization expense									6,961,000	7,601,000	8,324,000
Goodwill, net	54,766,000				54,766,000				54,766,000	54,766,000
EMEA
Organization Consolidation And Summary Of Significant Accounting Policies [Line Items]
Accounts receivable, net	14,600,000				15,200,000				14,600,000	15,200,000
Depreciation and amortization expense									766,000	743,000	527,000
Goodwill, net	5,508,000				5,511,000				5,508,000	5,511,000
APAC
Organization Consolidation And Summary Of Significant Accounting Policies [Line Items]
Accounts receivable, net	4,500,000				4,400,000				4,500,000	4,400,000
Depreciation and amortization expense									260,000	269,000	209,000
Goodwill, net	1,963,000				$ 1,963,000				1,963,000	1,963,000
India
Organization Consolidation And Summary Of Significant Accounting Policies [Line Items]
Operating lease liabilities	13,300,000								13,300,000
Certificates of deposit	$ 1,100,000								1,100,000
Other (Loss) Income, Net
Organization Consolidation And Summary Of Significant Accounting Policies [Line Items]
Foreign exchange gain (loss)									$ (1,000,000.0)	$ 1,300,000	$ (1,800,000)

Quarterly Results of Operations (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2019

Quarterly Financial Information Disclosure [Abstract]

Quarterly Results of Operations

The unaudited quarterly results have been prepared on substantially the same basis as the audited Consolidated Financial Statements.

	Quarter Ended
	Mar 31, 2018		Jun 30, 2018		Sep 30, 2018		Dec 31, 2018			Mar 31, 2019			Jun 30, 2019			Sep 30, 2019		Dec 31, 2019
	(In thousands, except per share data)
Statements of Income Data:
Revenue:
Cloud subscriptions	$	4,469	$	5,377	$	6,455	$	6,803		$	7,859		$	9,009		$	14,242	$	15,721
Software license		7,555		12,973		11,526		13,314			12,414			11,721			15,486		9,234
Maintenance		36,397		36,993		37,177		36,466			36,099			37,323			37,763		38,045
Services		78,757		82,267		84,136		84,525			88,631			93,951			91,626		86,308
Hardware		3,391		4,261		3,057		3,258			3,401			2,337			3,158		3,621
Total revenue		130,569		141,871		142,351		144,366			148,404			154,341			162,275		152,929
Costs and expenses:
Cost of software license		1,308		2,096		1,211		682			592			623			748		663
Cost of cloud subscriptions, maintenance and services		56,486		56,985		59,975		62,138			66,578			70,955			73,618		71,190
Research and development		17,059		18,176		18,453		18,208			21,213			21,997			22,614		21,784
Sales and marketing		12,884		13,809		10,726		13,843			14,781			14,520			12,125		15,434
General and administrative		12,800		12,885		13,711		13,222			15,050			16,805			16,236		16,512
Depreciation and amortization		2,202		2,235		2,179		1,997			1,914			1,859			1,937		2,277
Total costs and expenses		102,739		106,186		106,255		110,090			120,128			126,759			127,278		127,860
Operating income		27,830		35,685		36,096		34,276			28,276			27,582			34,997		25,069
Other income (loss), net		721		986		1,538		(901	)		(371	)		(71	)		810		(215	)
Income before income taxes		28,551		36,671		37,634		33,375			27,905			27,511			35,807		24,854
Income tax provision		5,899		9,003		9,179		7,460			6,933			6,586			8,700		8,096
Net income	$	22,652	$	27,668	$	28,455	$	25,915		$	20,972		$	20,925		$	27,107	$	16,758
Basic earnings per share	$	0.34	$	0.42	$	0.43	$	0.40		$	0.32		$	0.32		$	0.42	$	0.26
Diluted earnings per share	$	0.33	$	0.42	$	0.43	$	0.40		$	0.32		$	0.32		$	0.42	$	0.26
Shares used in computing basic earnings per share		67,553		66,429		65,658		65,199			64,909			64,623			64,247		63,822
Shares used in computing diluted earnings per share		67,736		66,535		65,901		65,526			65,204			65,093			64,992		64,807

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Operating activities:
Net income	$ 85,762	$ 104,690	$ 116,481
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	7,987	8,613	9,060
Equity-based compensation	31,841	19,864	16,229
(Gain) loss on disposal of equipment	(429)	59	152
Deferred income taxes	(1,406)	(4,265)	1,574
Unrealized foreign currency (gain) loss	(708)	298	196
Changes in operating assets and liabilities:
Accounts receivable, net	(1,065)	(9,341)	10,139
Other assets	(8,924)	(4,357)	661
Accounts payable, accrued and other liabilities	20,812	18,603	(5,354)
Income taxes	1,180	(4,390)	1,876
Deferred revenue	11,858	7,575	13,052
Net cash provided by operating activities	146,908	137,349	164,066
Investing activities:
Purchases of property and equipment	(15,193)	(7,306)	(6,199)
Purchases of short-term investments		(14,584)	(12,873)
Maturities of short-term investments	1,439	12,052	13,302
Net cash used in investing activities	(13,754)	(9,838)	(5,770)
Financing activities:
Purchase of common stock	(121,487)	(149,322)	(131,707)
Net cash used in financing activities	(121,487)	(149,322)	(131,707)
Foreign currency impact on cash	(115)	(4,585)	3,318
Net change in cash and cash equivalents	11,552	(26,396)	29,907
Cash and cash equivalents at beginning of period	99,126	125,522	95,615
Cash and cash equivalents at end of period	110,678	99,126	125,522
Supplemental disclosures of cash flow information:
Cash paid for taxes	$ 30,492	$ 40,215	$ 64,910

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Taxes [Line Items]
Net operating loss carry-forwards			$ 300
Operating loss carryforwards, expiration date			2025
Tax credit carry-forwards			$ 5,100
Tax credit carry-forwards deferred tax asset		$ 5,495	4,027	$ 5,495
Tax credit carry-forwards, valuation allowance			1,800
Undistributed earnings and profits			$ 58,200
Provisional estimate of one-time deemed repatriation transition tax	$ 3,300
Deferred tax asset provisional write-down income tax expense benefit	700
Additional tax expense (benefit) on finalization of transition tax		300
Additional tax expense (benefit) on finalization of deferred tax assets				$ (500)
Effective income tax rate from remeasurement of deferred tax assets and liabilities			21.00%	21.00%	35.00%
One-time tax benefit from remeasurement of deferred tax assets and liabilities	1,200
Unrecognized tax benefits	$ 7,419	7,113	$ 11,239	$ 7,113	$ 7,419	$ 6,938
Unrecognized tax benefits which, if recognized, would affect the effective tax rate		5,400	10,200	5,400
Accrued interest and penalties recognized related to unrecognized tax benefits			500	500	$ 300
Accrued interest and penalties		$ 2,100	1,700	$ 2,100
Reasonably possible amount of decrease in unrecognized tax benefit over the next twelve months			$ 3,100
Earliest Tax Year
Income Taxes [Line Items]
Tax credit carry-forwards, expiration dates			2020
Latest Tax Year
Income Taxes [Line Items]
Tax credit carry-forwards, expiration dates			2029
NOL expires in 2025
Income Taxes [Line Items]
Net operating loss carry-forwards			$ 300

Quarterly Results of Operations (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenue:
Total revenue	$ 152,929	$ 162,275	$ 154,341	$ 148,404	$ 144,366	$ 142,351	$ 141,871	$ 130,569	$ 617,949	$ 559,157	$ 594,599
Costs and expenses:
Total costs									284,967	240,881	245,733
Research and development	21,784	22,614	21,997	21,213	18,208	18,453	18,176	17,059	87,608	71,896	57,704
Sales and marketing	15,434	12,125	14,520	14,781	13,843	10,726	13,809	12,884	56,860	51,262	47,482
General and administrative	16,512	16,236	16,805	15,050	13,222	13,711	12,885	12,800	64,603	52,618	46,054
Depreciation and amortization	2,277	1,937	1,859	1,914	1,997	2,179	2,235	2,202	7,987	8,613	9,060
Total costs and expenses	127,860	127,278	126,759	120,128	110,090	106,255	106,186	102,739	502,025	425,270	408,954
Operating income	25,069	34,997	27,582	28,276	34,276	36,096	35,685	27,830	115,924	133,887	185,645
Other income (loss), net	(215)	810	(71)	(371)	(901)	1,538	986	721
Income before income taxes	24,854	35,807	27,511	27,905	33,375	37,634	36,671	28,551	116,077	136,231	184,833
Income tax provision	8,096	8,700	6,586	6,933	7,460	9,179	9,003	5,899	30,315	31,541	68,352
Net income	$ 16,758	$ 27,107	$ 20,925	$ 20,972	$ 25,915	$ 28,455	$ 27,668	$ 22,652	$ 85,762	$ 104,690	$ 116,481
Basic earnings per share	$ 0.26	$ 0.42	$ 0.32	$ 0.32	$ 0.40	$ 0.43	$ 0.42	$ 0.34	$ 1.33	$ 1.58	$ 1.68
Diluted earnings per share	$ 0.26	$ 0.42	$ 0.32	$ 0.32	$ 0.40	$ 0.43	$ 0.42	$ 0.33	$ 1.32	$ 1.58	$ 1.68
Shares used in computing basic earnings per share	63,822	64,247	64,623	64,909	65,199	65,658	66,429	67,553	64,397	66,201	69,175
Shares used in computing diluted earnings per share	64,807	64,992	65,093	65,204	65,526	65,901	66,535	67,736	65,103	66,434	69,424
Cloud Subscriptions
Revenue:
Total revenue	$ 15,721	$ 14,242	$ 9,009	$ 7,859	$ 6,803	$ 6,455	$ 5,377	$ 4,469	$ 46,831	$ 23,104	$ 9,596
Software License
Revenue:
Total revenue	9,234	15,486	11,721	12,414	13,314	11,526	12,973	7,555	48,855	45,368	72,313
Costs and expenses:
Total costs	663	748	623	592	682	1,211	2,096	1,308	2,626	5,297	5,483
Maintenance
Revenue:
Total revenue	38,045	37,763	37,323	36,099	36,466	37,177	36,993	36,397	149,230	147,033	142,998
Services
Revenue:
Total revenue	86,308	91,626	93,951	88,631	84,525	84,136	82,267	78,757	360,516	329,685	326,502
Hardware
Revenue:
Total revenue	3,621	3,158	2,337	3,401	3,258	3,057	4,261	3,391	12,517	13,967	43,190
Costs and expenses:
Total costs											32,205
Cloud Subscriptions, Maintenance and Services
Costs and expenses:
Total costs	$ 71,190	$ 73,618	$ 70,955	$ 66,578	$ 62,138	$ 59,975	$ 56,985	$ 56,486	$ 282,341	$ 235,584	$ 208,045

Income Taxes

12 Months Ended

Dec. 31, 2019

Income Tax Disclosure [Abstract]

Income Taxes

3. Income Taxes

We are subject to future federal, state, and foreign income taxes and have recorded net deferred tax assets on the Consolidated Balance Sheets at December 31, 2019 and 2018. Deferred tax assets and liabilities are determined based on the difference between the financial accounting and tax bases of assets and liabilities. We present below significant components of our deferred tax assets and liabilities as of December 31, 2019 and 2018 are as follows (in thousands):

	December 31,
	2019			2018
Deferred tax assets:
Accounts receivable	$	667		$	599
Accrued liabilities		8,083			5,793
Equity-based compensation		5,888			4,643
Capitalized costs		726			911
Accrued sales taxes		187			202
Operating lease liabilities		10,869			96
State tax credits		4,027			5,495
Foreign subsidiary net operating losses		62			175
Valuation allowance		(2,886	)		(3,846	)
Other		479			778
		28,102			14,846
Deferred tax liabilities:
Intangible assets		7,548			7,502
Depreciation		1,228			1,237
Deferred commissions		2,326			718
Operating lease right-of-use assets		10,223			-
		21,325			9,457
Net deferred tax assets	$	6,777		$	5,389

We present below income from domestic and foreign operations before income tax expense for the years ended December 31, 2019, 2018 and 2017 are as follows (in thousands):

	Year Ended December 31,
	2019		2018		2017
Domestic	$	104,878	$	126,542	$	177,314
Foreign		11,199		9,689		7,519
Total	$	116,077	$	136,231	$	184,833

The components of our income tax provision for the years ended December 31, 2019, 2018 and 2017 are as follows (in thousands):

	Year Ended December 31,
	2019			2018			2017
Current:
Federal	$	18,682		$	22,606		$	53,998
State		5,711			6,182			6,595
Foreign		7,323			7,018			6,185
		31,716			35,806			66,778
Deferred:
Federal		(863	)		(3,127	)		1,590
State		(326	)		(674	)		35
Foreign		(212	)		(464	)		(51	)
		(1,401	)		(4,265	)		1,574
Total	$	30,315		$	31,541		$	68,352

As a result of a loss in a foreign location, we have a net operating loss carry-forward (“NOL”) of approximately $0.3 million available to offset future income. All $0.3 million of the NOL expires in 2025. We have established a valuation allowance for this NOL because the ability to utilize it is not more likely than not.

We have tax credit carry-forwards of approximately $5.1 million available to offset future state tax. These tax credit carry-forwards expire in 2020 to 2029. These credits represent a deferred tax asset of $4.0 million after consideration of the federal benefit of state tax deductions. A valuation allowance of $1.8 million has been established for these credits because the ability to use them is not more likely than not.

At December 31, 2019 we had approximately $58.2 million of undistributed earnings and profits. The undistributed earnings and profits are considered previously taxed income and would not be subject to U.S. income taxes upon repatriation of those earnings, in the form of dividends. The undistributed earnings and profits are considered to be permanently reinvested, accordingly no provision for local withholdings taxes have been provided, however, upon repatriation of those earnings, in the form of dividends, we could be subject to additional local withholding taxes.

	Year Ended December 31,
	2019			2018			2017

Statutory federal income tax rate		21.0	%		21.0	%		35.0	%
Effect of:
State income tax, net of federal benefit		3.5			3.4			2.3
State credit carryforwards		1.3			0.3			(0.1	)
U.S. federal R&D tax credit		(1.9	)		(1.7	)		(0.8	)
Tax Reform		-			(0.1	)		1.5
Excess benefit of equity compensation		(0.1	)		(0.6	)		(1.0	)
Foreign-derived intangible income (FDII) deduction		(3.1	)		(1.6	)		-
Foreign operations		1.1			1.2			(0.1	)
Tax contingencies		3.7			0.5			-
Other permanent differences		1.5			1.0			0.3
Change in valuation allowance		(0.9	)		(0.2	)		(0.1	)
Income taxes		26.1	%		23.2	%		37.0	%

On December 22, 2017, the United States enacted tax reform legislation commonly known as the Tax Cuts and Jobs Act (“the Act”), resulting in significant modifications to existing law. In December 2017, we recorded a provisional estimate of $3.3 million for the one-time deemed repatriation transition tax on unrepatriated foreign earnings. The provisional amount was based on information available at that time, including estimated tax earnings and profits from foreign investments. In the fourth quarter of 2018, we finalized our transition tax calculation and recorded additional tax expense of $0.3 million. In December 2017, we also recorded a provisional write-down to deferred tax assets of $0.7 million related to changes in Section 162(m), Internal Revenue Code of 1986, regarding deductions for excessive employee compensation. In 2018, we finalized our calculation under Section 162(m) and recorded a tax benefit of $0.5 million. We also recorded a one-time tax benefit in December 2017 of $1.2 million from the remeasurement of deferred tax assets and liabilities from 35% to 21%. As of December 31, 2018, we completed the accounting for all of the impacts of the Act.

The Act provides for the global intangible low-taxed income (“GILTI”) provision which requires us in our U.S. income tax return, to include foreign subsidiary earnings in excess of an allowable return on the foreign subsidiary’s tangible assets. The FASB staff provided additional guidance to address the accounting for the effects of the provisions related to the taxation of GILTI, noting that companies should make an accounting policy election to recognize deferred taxes for temporary basis differences expected to reverse as GILTI in future years or to include the tax expense in the year it is incurred. We have elected to include the tax expense in the year that we incur it.

A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows for the years ended December 31, 2019, 2018 and 2017 (in thousands):

	December 31,
	2019			2018			2017

Unrecognized tax benefits at January 1,	$	(7,113	)	$	(7,419	)	$	(6,938	)
Gross amount of increases in unrecognized tax benefits as a result of tax positions taken during a prior period		(2,428	)		(873	)		(789	)
Gross amount of decreases in unrecognized tax benefits as a result of tax positions taken during a prior period		445			233			145
Gross amount of increases in unrecognized tax benefits as a result of tax positions taken during the current period		(2,489	)		(78	)		-
Reductions to unrecognized tax benefits relating to settlements with taxing authorities		-			349			-
Reductions to unrecognized tax benefits as a result of a lapse of the applicable statute of limitations		346			675			163
Unrecognized tax benefits at December 31,	$	(11,239	)	$	(7,113	)	$	(7,419	)

Our unrecognized tax benefits totaled $11.2 million and $7.1 million as of December 31, 2019 and 2018, respectively. Included in these amounts are unrecognized tax benefits totaling $10.2 million and $5.4 million as of December 31, 2019 and 2018, respectively, which, if recognized, would affect the effective tax rate.

We recognize potential accrued interest and penalties related to unrecognized tax benefits within our global operations in income tax expense. For the years ended December 31, 2019, 2018 and 2017, the Company recognized the following income tax expense: $0.5 million, $0.5 million, and $0.3 million, respectively, for the potential payment of interest and penalties. Accrued interest and penalties were $1.7 million and $2.1 million for the years ended December 31, 2019 and 2018. We conduct business globally and, as a result, files income tax returns in the United State federal jurisdiction and in many state and foreign jurisdictions. We are generally no longer subject to U.S. federal, state, and local, or non-US income tax examinations for the years before 2012. Due to the expiration of statutes of limitations in multiple jurisdictions globally during 2020, the Company anticipates it is reasonably possible that unrecognized tax benefits may decrease by $3.1 million.

Reconciliation of Statutory U.S. Federal Rate and Tax Effective Rates (Detail)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Statutory federal income tax rate	21.00%	21.00%	35.00%
State income tax, net of federal benefit	3.50%	3.40%	2.30%
State credit carryforwards	1.30%	0.30%	(0.10%)
U.S. federal R&D tax credit	(1.90%)	(1.70%)	(0.80%)
Tax Reform		(0.10%)	1.50%
Excess benefit of equity compensation	(0.10%)	(0.60%)	(1.00%)
Foreign-derived intangible income (FDII) deduction	(3.10%)	(1.60%)
Foreign operations	1.10%	1.20%	(0.10%)
Tax contingencies	3.70%	0.50%
Other permanent differences	1.50%	1.00%	0.30%
Change in valuation allowance	(0.90%)	(0.20%)	(0.10%)
Income taxes	26.10%	23.20%	37.00%

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Statement Of Financial Position [Abstract]
Accounts receivable, allowance	$ 2,826	$ 2,589
Preferred stock, par value
Preferred stock, shares authorized	20,000,000	20,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	63,456,986	64,860,419
Common stock, shares outstanding	63,456,986	64,860,419

Restructuring Charge - Additional Information (Detail) $ / shares in Units, $ in Thousands	1 Months Ended	12 Months Ended
	May 31, 2017 Employee	Dec. 31, 2017 USD ($) $ / shares
Restructuring And Related Activities [Abstract]
Number of positions eliminated \| Employee	100
Restructuring charge pre-tax		$ 2,921
Restructuring charge after-tax		$ 1,800
Restructuring charge per fully diluted share \| $ / shares		$ 0.03

Other Information Related to Leases (Detail) $ in Thousands	12 Months Ended
Other Information Related to Leases (Detail) $ in Thousands	Dec. 31, 2019 USD ($)
Leases [Abstract]
Weighted average remaining lease term	6 years 10 months 24 days
Weighted average discount rate	3.00%
Supplemental cash flow information - operating cash flows (in thousands):
Operating cash flows for operating leases	$ 5,802

Shareholders' Equity - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Jan. 31, 2020
Stockholders Equity Note [Line Items]
Common stock shares purchased under publicly-announced share repurchase program	1,640,055	3,147,466	2,695,295
Common stock purchased under publicly-announced share repurchase program, value	$ 115,900,000	$ 143,300,000	$ 124,900,000
Subsequent Event
Stockholders Equity Note [Line Items]
Stock Repurchase program, authorized amount				$ 50,000,000

Leases - Additional Information (Detail) $ in Thousands	12 Months Ended
Leases - Additional Information (Detail) $ in Thousands	Dec. 31, 2019 USD ($) Agreement	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2014	Jan. 01, 2019 USD ($)
Leases [Line Items]
Total operating lease liabilities	$ 39,097				$ 31,000
Option to extend, lease term	10 years
Additional operating lease obligations	$ 300
Additional operating lease that has not yet commenced, description	we have an additional operating lease for a facility that has not yet commenced with lease obligations of approximately $0.3 million. This operating lease will commence in January 2020 with lease term of 25 months
Additional operating lease commencement date	2020-01
Additional operating lease, term	25 months
Total lease cost	$ 8,400	$ 7,100	$ 7,100
Operating lease costs	8,000
Short-term lease costs	$ 400
India
Leases [Line Items]
Number of lease agreements \| Agreement	4
Operating lease term	10 years
Total operating lease liabilities	$ 13,300
Atlanta
Leases [Line Items]
Operating lease term extended date, month and year				2025-09
Leasehold improvement reimbursement received		$ 1,300

Summary of Segment Activity in Restructuring Accrual (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2017 USD ($)
Restructuring Cost And Reserve [Line Items]
Restructuring charge	$ 2,921
Cash payments	(2,921)
Americas
Restructuring Cost And Reserve [Line Items]
Restructuring charge	2,813
Cash payments	(2,813)
EMEA
Restructuring Cost And Reserve [Line Items]
Restructuring charge	108
Cash payments	$ (108)

Goodwill, Long-Lived Assets and Total Assets by Reportable Segment (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Goodwill, net	$ 62,237	$ 62,240
Long lived assets	71,187	24,086
Total assets	372,279	307,150
Americas
Segment Reporting Information [Line Items]
Goodwill, net	54,766	54,766
Long lived assets	61,686	20,251
Total assets	309,662	256,948
EMEA
Segment Reporting Information [Line Items]
Goodwill, net	5,508	5,511
Long lived assets	7,918	3,161
Total assets	48,008	37,777
APAC
Segment Reporting Information [Line Items]
Goodwill, net	1,963	1,963
Long lived assets	1,583	674
Total assets	$ 14,609	$ 12,425

Property and Equipment (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 66,924	$ 63,673
Less accumulated depreciation	(44,199)	(49,355)
Property and equipment, net	22,725	14,318
Office Equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	38,373	39,633
Furniture and Fixtures
Property Plant And Equipment [Line Items]
Property and equipment, gross	5,017	4,610
Leasehold Improvements
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 23,534	$ 19,430

Summary of Operating Lease Right-of-Use Assets and Lease Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Jan. 01, 2019
ASSETS
Operating lease right-of-use assets	$ 35,896	$ 28,500
LIABILITIES
Operating lease liabilities, current (included in accrued and other liabilities)	$ 6,681
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	manh:AccruedAndOtherLiabilitiesCurrent
Operating lease liabilities, long-term	$ 32,416
Total operating lease liabilities	$ 39,097	$ 31,000

Aggregate Future Minimum Lease Payments Under Noncancelable Operating Leases (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Jan. 01, 2019
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
2020	$ 7,070
2021	6,780
2022	6,390
2023	6,560
2024	6,359
Thereafter	13,537
Total minimum payments required	46,696
Less short-term leases	(25)
Less imputed interest	(7,574)
Total operating lease liabilities	$ 39,097	$ 31,000