Tyler (TYL) 10-Q 8 May 19 2019 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2019	May 06, 2019
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1
Trading Symbol	TYL
Entity Registrant Name	TYLER TECHNOLOGIES INC
Entity Central Index Key	0000860731
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Common Stock, Shares Outstanding		38,341,555

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Revenues [Abstract]
Total revenues	$ 247,066	$ 221,174
Cost of revenues:
Total cost of revenues	131,018	118,369
Gross profit	116,048	102,805
Selling, general and administrative expenses	57,766	47,604
Research and development expense	18,941	13,048
Amortization of other intangibles	4,850	3,315
Operating income	34,491	38,838
Other income, net	586	599
Income before income taxes	35,077	39,437
Income tax provision	7,729	1,612
Net income	$ 27,348	$ 37,825
Earnings per common share:
Basic (usd per share)	$ 0.71	$ 1
Diluted (usd per share)	$ 0.69	$ 0.95
Software licenses and royalties
Revenues [Abstract]
Total revenues	$ 21,793	$ 22,776
Cost of revenues:
Total cost of revenues	818	778
Subscriptions
Revenues [Abstract]
Total revenues	67,275	49,028
Acquired software
Cost of revenues:
Total cost of revenues	6,682	5,382
Software services
Revenues [Abstract]
Total revenues	48,443	45,939
Software services, maintenance and subscriptions
Cost of revenues:
Total cost of revenues	117,160	106,085
Maintenance
Revenues [Abstract]
Total revenues	100,152	93,897
Appraisal services
Revenues [Abstract]
Total revenues	5,214	5,394
Cost of revenues:
Total cost of revenues	3,452	3,781
Hardware and other
Revenues [Abstract]
Total revenues	4,189	4,140
Cost of revenues:
Total cost of revenues	$ 2,906	$ 2,343

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 39,437	$ 134,279
Accounts receivable (less allowance for doubtful accounts of $4,692 in 2019 and $4,647 in 2018)	298,980	298,912
Short-term investments	36,958	44,306
Prepaid expenses	23,839	33,258
Income tax receivable	0	4,697
Other current assets	3,060	3,406
Total current assets	402,274	518,858
Accounts receivable, long-term	22,821	16,020
Operating lease right-of-use assets	20,067
Property and equipment, net	164,617	155,177
Other assets:
Goodwill	834,572	753,718
Other intangibles, net	389,633	276,852
Non-current investments and other assets	75,318	70,338
Total assets	1,909,302	1,790,963
Current liabilities:
Accounts payable	6,011	6,910
Accrued liabilities	63,824	66,480
Operating lease liabilities	5,777
Current income tax payable	7,868	0
Deferred revenue	319,900	350,512
Total current liabilities	403,380	423,902
Revolving line of credit	85,000	0
Deferred revenue, long-term	442	424
Deferred income taxes	42,779	41,791
Operating lease liabilities, long-term	18,956
Commitments and contingencies	0	0
Shareholders' equity:
Preferred stock, $10.00 par value; 1,000,000 shares authorized; none issued	0	0
Common stock, $0.01 par value; 100,000,000 shares authorized; 48,147,969 shares issued and outstanding as of March 31, 2019 and December 31, 2018	481	481
Additional paid-in capital	731,073	731,435
Accumulated other comprehensive loss, net of tax	(46)	(46)
Retained earnings	798,157	771,925
Treasury stock, at cost; 9,825,158 and 9,872,505 shares in 2019 and 2018, respectively	(170,920)	(178,949)
Total shareholders' equity	1,358,745	1,324,846
Total liabilities and shareholders' equity	$ 1,909,302	$ 1,790,963

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 4,692	$ 4,647
Preferred stock, par value (usd per share)	$ 10	$ 10
Preferred stock, shares authorized (shares)	1,000,000	1,000,000
Preferred stock, shares issued (shares)	0	0
Common stock, par value (usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (shares)	100,000,000	100,000,000
Common stock, shares issued (shares)	48,147,969	48,147,969
Common stock, shares outstanding (shares)	48,147,969	48,147,969
Treasury stock (shares)	9,825,158	9,872,505

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash flows from operating activities:
Net income	$ 27,348	$ 37,825
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	17,308	14,112
Share-based compensation expense	14,416	10,557
Deferred income tax benefit	(4,785)	(2,658)
Changes in operating assets and liabilities, exclusive of effects of acquired companies:
Accounts receivable	9,622	30,227
Income taxes	12,425	4,053
Prepaid expenses and other current assets	(3,064)	1,333
Accounts payable	(1,501)	(1,752)
Accrued liabilities	(4,665)	(17,952)
Deferred revenue	(43,147)	(31,114)
Net cash provided by operating activities	23,957	44,631
Cash flows from investing activities:
Additions to property and equipment	(12,320)	(8,895)
Purchase of marketable security investments	(3,590)	(43,962)
Proceeds from marketable security investments	20,276	11,077
Investment in software	(690)	0
Cost of acquisitions, net of cash acquired	(199,130)	0
Decrease in other	564	743
Net cash used by investing activities	(194,890)	(41,037)
Cash flows from financing activities:
Increase in net borrowings on revolving line of credit	85,000	0
Purchase of treasury shares	(17,786)	0
Proceeds from exercise of stock options	6,528	19,298
Contributions from employee stock purchase plan	2,349	1,798
Net cash provided by financing activities	76,091	21,096
Net (decrease) increase in cash and cash equivalents	(94,842)	24,690
Cash and cash equivalents at beginning of period	134,279	185,926
Cash and cash equivalents at end of period	$ 39,437	$ 210,616

CONSOLIDATED STATEMENTS OF SHAR

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings	Treasury Stock
Balance, shares at Dec. 31, 2017		48,148				10,262
Balance at Dec. 31, 2017	$ 1,191,736	$ 481	$ 626,867	$ (46)	$ 624,463	$ (60,029)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	37,825				37,825
Issuance of shares pursuant to stock compensation plan	19,298		13,858			$ 5,440
Issuance of shares pursuant to stock compensation plan (in shares)						350
Stock compensation	10,557		10,557
Issuance of shares pursuant to employee stock purchase plan	$ 1,798		1,627			$ 171
Issuance of shares pursuant to employee stock purchase plan (in shares)	12					12
Treasury stock purchases (in shares)	0					0
Treasury stock purchases	$ 0					$ 0
Balance, shares at Mar. 31, 2018		48,148				9,900
Balance at Mar. 31, 2018	1,261,214	$ 481	652,909	(46)	662,288	$ (54,418)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Retained Earnings Adjustment-Adoption of Topic 842 Leases, net of taxes	(1,116)				(1,116)
Balance, shares at Dec. 31, 2018		48,148				9,872
Balance at Dec. 31, 2018	1,324,846	$ 481	731,435	(46)	771,925	$ (178,949)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	27,348				27,348
Issuance of shares pursuant to stock compensation plan	6,528		(14,405)			$ 20,933
Issuance of shares pursuant to stock compensation plan (in shares)						111
Employee taxes paid for withheld shares upon equity award settlement (in shares)						(7)
Employee taxes paid for withheld shares upon equity award settlement	(1,337)					$ (1,337)
Stock compensation	14,416		14,416
Issuance of shares pursuant to employee stock purchase plan	$ 2,349		(373)			$ 2,722
Issuance of shares pursuant to employee stock purchase plan (in shares)	15					15
Treasury stock purchases (in shares)	(72)					(72)
Treasury stock purchases	$ (14,289)					$ (14,289)
Balance, shares at Mar. 31, 2019		48,148				9,825
Balance at Mar. 31, 2019	$ 1,358,745	$ 481	$ 731,073	$ (46)	$ 798,157	$ (170,920)

Basis of Presentation

Basis of Presentation	3 Months Ended
	Mar. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation We prepared the accompanying condensed consolidated financial statements following the requirements of the Securities and Exchange Commission (“SEC”) and accounting principles generally accepted in the United States, or GAAP, for interim reporting. As permitted under those rules, certain footnotes or other financial information that are normally required by GAAP can be condensed or omitted for interim periods. Balance sheet amounts are as of March 31, 2019 , and December 31, 2018 , and operating result amounts are for the three months ended March 31, 2019 , and 2018 , respectively, and include all normal and recurring adjustments that we considered necessary for the fair summarized presentation of our financial position and operating results. As these are condensed financial statements, one should also read the financial statements and notes included in our latest Form 10-K for the year ended December 31, 2018 . Revenues, expenses, assets and liabilities can vary during each quarter of the year. Therefore, the results and trends in these interim financial statements may not be the same as those for the full year. Comprehensive income (loss) is defined as the change in equity of a business enterprise during a period from transactions, and other events and circumstances from non-owner sources and includes all components of net income (loss) and other comprehensive income (loss). We had no items of other comprehensive income (loss) for the three months ended March 31, 2019 and 2018

Accounting Standards and Signif

Accounting Standards and Significant Accounting Policies	3 Months Ended
	Mar. 31, 2019
Accounting Policies [Abstract]
Accounting Standards and Significant Accounting Policies	Accounting Standards and Significant Accounting Policies SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Except for the accounting policies for leases recognition that were adjusted as a result of adopting ASU No. 2016-02, Leases ("Topic 842") , there have been no changes to our significant accounting policies described in the Annual Report on Form 10-K for the year ended December 31, 2018, filed with the SEC on February 20, 2019, that have had a material impact on our condensed consolidated financial statements and related notes. USE OF ESTIMATES The preparation of our financial statements in conformity with accounting principles generally accepted in the United States (“GAAP”) requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Significant items subject to such estimates and assumptions include revenue recognition, determining the nature and timing of satisfaction of performance obligations, and determining the standalone selling price ("SSP") of performance obligations, variable consideration, and other obligations such as returns and refunds; loss contingencies; the estimated useful life of deferred commissions; the carrying amount and estimated useful lives of intangible assets; the carrying amount of operating lease right-of-use assets and operating lease liabilities; determining share-based compensation expense; the valuation allowance for receivables; and determining the potential outcome of future tax consequences of events that have been recognized on our consolidated financial statements or tax returns. Actual results could differ from estimates. REVENUE RECOGNITION Nature of Products and Services We earn revenue from software licenses, royalties, subscription-based services, software services, post-contract customer support (“PCS” or “maintenance”), hardware, and appraisal services. Revenue is recognized upon transfer of control of promised products or services to customers in an amount that reflects the consideration we expect to receive in exchange for those products or services. We determine revenue recognition through the following steps: • Identification of the contract, or contracts, with a customer • Identification of the performance obligations in the contract • Determination of the transaction price • Allocation of the transaction price to the performance obligations in the contract • Recognition of revenue when, or as, we satisfy a performance obligation Most of our software arrangements with customers contain multiple performance obligations that range from software licenses, installation, training, and consulting to software modification and customization to meet specific customer needs (services), hosting, and PCS. For these contracts, we account for individual performance obligations separately when they are distinct. We evaluate whether separate performance obligations can be distinct or should be accounted for as one performance obligation. Arrangements that include software services, such as training or installation, are evaluated to determine whether the customer can benefit from the services either on their own or together with other resources readily available to the customer and whether the services are separately identifiable from other promises in the contract. The transaction price is allocated to the distinct performance obligations on a relative SSP basis. We determine the SSP based on our overall pricing objectives, taking into consideration market conditions and other factors, including the value of our contracts, the applications sold, customer demographics, and the number and types of users within our contracts. Revenue is recognized net of allowances for sales adjustments and any taxes collected from customers, which are subsequently remitted to governmental authorities. Significant Judgments: Our contracts with customers often include multiple performance obligations to a customer. When a software arrangement (license or subscription) includes both software licenses and software services, judgment is required to determine whether the software license is considered distinct and accounted for separately, or not distinct and accounted for together with the software services and recognized over time. The transaction price is allocated to the separate performance obligations on a relative SSP basis. We determine the SSP based on our overall pricing objectives, taking into consideration market conditions and other factors, including the value of our contracts, the applications sold, customer demographics, and the number and types of users within our contracts. We use a range of amounts to estimate SSP when we sell each of the products and services separately and need to determine whether there is a discount to be allocated based on the relative SSP of the various products and services. In instances where SSP is not directly observable, such as when we do not sell the product or service separately, we determine SSP using the expected cost-plus margin approach. For arrangements that involve significant production, modification or customization of the software, or where software services otherwise cannot be considered distinct, we recognize revenue as control is transferred to the customer over time using progress-to-completion methods. Depending on the contract, we measure progress-to-completion primarily using labor hours incurred, or value added. The progress-to-completion method generally results in the recognition of reasonably consistent profit margins over the life of a contract because we can provide reasonably dependable estimates of contract billings and contract costs. We use the level of profit margin that is most likely to occur on a contract. If the most likely profit margin cannot be precisely determined, the lowest probable level of profit margin in the range of estimates is used until the results can be estimated more precisely. These arrangements are often implemented over an extended time period and occasionally require us to revise total cost estimates. Amounts recognized in revenue are calculated using the progress-to-completion measurement after giving effect to any changes in our cost estimates. Changes to total estimated contract costs, if any, are recorded in the period they are determined. Estimated losses on uncompleted contracts are recorded in the period in which we first determine that a loss is apparent. Typically, the structure of our arrangements does not give rise to variable consideration. However, in those instances whereby variable consideration exists, we include in our estimates additional revenue for variable consideration when we believe we have an enforceable right, the amount can be estimated reliably and its realization is probable. Refer to Note 13 - Disaggregation of Revenue for further information, including the economic factors that affect the nature, amount, timing, and uncertainty of revenue and cash flows of our various revenue categories. Contract Balances: Accounts receivable and allowance for doubtful accounts Timing of revenue recognition may differ from the timing of invoicing to customers. We record an unbilled receivable when revenue is recognized prior to invoicing, or deferred revenue when revenue is recognized subsequent to invoicing. For multi-year agreements, we generally invoice customers annually at the beginning of each annual coverage period. We record an unbilled receivable related to revenue recognized for on-premises licenses as we have an unconditional right to invoice and receive payment in the future related to those licenses. At March 31, 2019 and December 31, 2018 , total current and long-term accounts receivable, net of allowance for doubtful accounts, was $321.8 million and $314.9 million , respectively. We have recorded unbilled receivables of $113.1 million and $104.2 million at March 31, 2019 , and December 31, 2018 , respectively. Included in unbilled receivables are retention receivables of $13.4 million and $12.2 million at March 31, 2019 , and December 31, 2018 , respectively, which become payable upon the completion of the contract or completion of our fieldwork and formal hearings. Unbilled receivables expected to be collected within one year have been included with accounts receivable, current portion in the accompanying condensed consolidated balance sheets. Unbilled receivables and retention receivables expected to be collected past one year have been included with accounts receivable, long-term portion in the accompanying condensed consolidated balance sheets. We maintain allowances for doubtful accounts, which are provided at the time the revenue is recognized. Since most of our customers are domestic governmental entities, we rarely incur a loss resulting from the inability of a customer to make required payments. Events or changes in circumstances that indicate the carrying amount for the allowances for doubtful accounts may require revision, include, but are not limited to, deterioration of a customer’s financial condition, failure to manage our customer’s expectations regarding the scope of the services to be delivered, and defects or errors in new versions or enhancements of our software products. The following table summarizes the changes in the allowance for doubtful accounts(in thousands): Three Months Ended March 31, 2019 Balance, beginning of period December 31, 2018 $ 4,647 Provisions for losses - accounts receivable 1,148 Collection of accounts previously written off (545 ) Deductions for accounts charged off or credits issued (558 ) Balance, end of period $ 4,692 LEASES We determine if an arrangement is a lease at inception. Operating leases are included in operating lease right-of-use (“ROU”) assets, other current liabilities, and operating lease liabilities on our consolidated balance sheets. We currently do not have any finance lease arrangements. Operating lease ROU assets and operating lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. As most of our leases do not provide an implicit rate, we use our incremental borrowing rate based on the information available at commencement date of the lease in determining the present value of future payments. The operating lease ROU asset also includes any lease payments made and excludes lease incentives and initial direct costs incurred. Our lease terms may include options to extend or terminate the lease when it is reasonably certain that we will exercise that option. Lease expense for minimum lease payments is recognized on a straight-line basis over the lease term. Leases with an initial term of 12 months or less are not recorded on the balance sheet; we recognize lease expense for these leases on a straight-line basis over the lease term. We have lease agreements with lease and non-lease components, which are generally accounted as a single lease component. RECENTLY ADOPTED ACCOUNTING PRONOUNCEMENTS Leases. We adopted Topic 842 using the transition method that allows us to initially apply the guidance at the adoption date of January 1, 2019, and recognized a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. We used the package of practical expedients that allows us to not reassess: (1) lease classification for any expired or existing leases and (2) initial direct costs for any expired or existing leases. We did not elect to use the hindsight application for evaluating the life of the lease arrangement. The impacts of adoption are reflected in the financial information herein. For additional details, see Note 10 to our condensed consolidated financial statements. The impact of Topic 842 on our consolidated balance sheet beginning January 1, 2019, included the recognition of ROU assets and lease liabilities for operating leases, while our accounting for finance leases remained substantially unchanged. We had no finance leases prior to the adoption of Topic 842 and currently do not have any. Amounts recognized at January 1, 2019, for operating leases were as follows (in thousands): January 1, 2019 ROU Operating assets $ 15,633 Short-term lease liability (4,344 ) Long-term lease liability (12,405 ) Retained earnings $ (1,116 )

Acquisitions

Acquisitions	3 Months Ended
	Mar. 31, 2019
Business Combinations [Abstract]
Acquisitions	Acquisitions On February 28, 2019, we acquired all of the capital stock of MP Holdings Parent, Inc. dba MicroPact ("MicroPact"), a leading provider of commercial off-the-shelf (COTS) solutions, including entellitrak®, a low-code application development platform for case management and business process management used extensively in the public sector. The total purchase price, net of cash acquired of $2.0 million , was approximately $204.2 million consisting of $197.5 million paid in cash, accrued contingent consideration of $7.0 million contingent upon the achievement of certain financial performance objectives, and $1.7 million accrued for certain holdbacks, subject to certain post-closing adjustments. We have performed a preliminary valuation analysis of the fair market value of MicroPact’s assets and liabilities. The following table summarizes the allocation of the preliminary purchase price as of the acquisition date: (In thousands) Cash $ 1,983 Accounts receivable 11,852 Other current assets 8,979 Other noncurrent assets 10,417 Identifiable intangible assets 118,843 Goodwill 82,029 Accounts payable (602 ) Accrued expenses (2,432 ) Other noncurrent liabilities (8,879 ) Deferred revenue (9,898 ) Deferred tax liabilities, net (6,144 ) Total consideration $ 206,148 In connection with this transaction, we acquired total tangible assets of $33.2 million and assumed liabilities of approximately $21.8 million . We recorded goodwill of $82.0 million , none of which is expected to be deductible for tax purposes, and other identifiable intangible assets of approximately $118.8 million . The $118.8 million of intangible assets are attributable to customer relationships, acquired software, trade name and favorable fair value of an operating lease and will be amortized over a weighted average period of approximately 10 years . We recorded deferred tax liabilities of $6.1 million related to estimated fair value allocations. The acquisition of MicroPact augments Tyler's product solutions, positions us in new practice areas such as health and human services, and presents opportunities to expand our business across new and complementary markets. Tyler intends to expand its total addressable market through MicroPact's strong presence in the federal market. Therefore, the goodwill of $82.0 million arising from this acquisition is primarily attributed to our ability to generate increased revenues, earnings and cash flow by expanding our addressable market and client base. The following unaudited pro forma consolidated operating results information has been prepared as if the MicroPact acquisition had occurred at January 1, 2018, after giving effect to certain adjustments, including amortization of intangibles, interest, transaction costs and tax effects. Three Months Ended March 31, 2019 2018 Revenues $ 258,864 $ 238,533 Net income 26,378 36,282 Basic earnings per share 0.69 0.95 Diluted earnings per share $ 0.67 $ 0.91 Pro forma information above does not include acquisitions that are not considered material to our results of operations. The pro forma information does not purport to represent what our results of operations actually would have been had such transaction occurred on the date specified or to project our results of operations for any future period. On February 1, 2019, we acquired all the assets of Civic, LLC ("MyCivic"), a company that provides software solutions to connect communities. The purchase price was $3.7 million of which $3.6 million was paid in cash and approximately $90,000 was accrued for a working capital holdback. As of March 31, 2019 , the purchase price allocations for MicroPact and MyCivic are not yet complete. The preliminary estimates of fair value assumed at the acquisition date for intangible assets, deferred revenue, accrued contingent consideration, accrued holdbacks and related deferred taxes are subject to change as valuations are finalized. The operating results of MicroPact and MyCivic are included in the operating results of the Enterprise Software segment since their respective dates of acquisition. Revenues from MicroPact included in Tyler's results of operations were approximately $5.5 million and the net loss was $0.4 million for the three months ended March 31, 2019 . Revenues and operating results from MyCivic included in 2019 results were not significant. As of March 31, 2019 , we incurred fees of approximately $695,000 for financial advisory, legal, accounting, due diligence, valuation and other various services necessary to complete these acquisitions. These fees were expensed in 2019 and are included in selling, general and administrative expenses. Our balance sheet as of March 31, 2019

Shareholders' Equity

Shareholders' Equity	3 Months Ended
	Mar. 31, 2019
Equity [Abstract]
Shareholders' Equity	Shareholders’ Equity The following table details activity in our common stock (in thousands): Three Months Ended March 31, 2019 2018 Shares Amount Shares Amount Purchases of treasury shares (72 ) $ (14,289 ) — $ — Stock option exercises 94 6,564 350 19,298 Employee stock plan purchases 15 2,349 12 1,798 Restricted stock units vested, net of withheld shares upon award settlement 10 $ (1,373 ) — $ — As of March 31, 2019 , we had authorization from our board of directors to repurchase up to 2.6 million

Deferred Commissions

Deferred Commissions	3 Months Ended
	Mar. 31, 2019
Revenue from Contract with Customer [Abstract]
Deferred Commissions	Deferred Commissions Sales commissions earned by our sales force are considered incremental and recoverable costs of obtaining a contract with a customer. Sales commissions for initial contracts are deferred and then amortized commensurate with the recognition of associated revenue over a period of benefit that we have determined to be three to seven years . Deferred commissions were $23.6 million and $21.9 million as of March 31, 2019 , and December 31, 2018 , respectively. Amortization expense was $3.8 million for the three months ended March 31, 2019 , and $3.5 million for the three months ended March 31, 2018 . There were no The tables below show disaggregation of revenue into categories that reflect how economic factors affect the nature, amount, timing, and uncertainty of revenue and cash flows. Timing of Revenue Recognition Timing of revenue recognition by revenue category during the period is as follows (in thousands): For the three months ended March 31, 2019 Products and services transferred at a point in time Products and services transferred over time Total Revenues Software licenses and royalties $ 16,910 $ 4,883 $ 21,793 Subscriptions — 67,275 67,275 Software services — 48,443 48,443 Maintenance — 100,152 100,152 Appraisal services — 5,214 5,214 Hardware and other 4,189 — 4,189 Total $ 21,099 $ 225,967 $ 247,066 For the three months ended March 31, 2018 Products and services transferred at a point in time Products and services transferred over time Total Revenues Software licenses and royalties $ 19,063 $ 3,713 $ 22,776 Subscriptions — 49,028 49,028 Software services — 45,939 45,939 Maintenance — 93,897 93,897 Appraisal services — 5,394 5,394 Hardware and other 4,140 — 4,140 Total $ 23,203 $ 197,971 $ 221,174 Recurring Revenue The majority of our revenue is comprised of recurring revenues from maintenance and subscriptions. Virtually all of our on-premises software clients contract with us for maintenance and support, which provides us with a significant source of recurring revenue. We generally provide maintenance and support for our on-premises clients under annual, or in some cases, multi-year contracts. The contract terms for subscription arrangements range from one to 10 years but are typically contracted for initial periods of three to five years , providing a significant source of recurring revenues on an annual basis. Non-recurring revenues are derived for all other revenue categories. Recurring revenues and non-recurring revenues recognized during the period are as follows (in thousands): For the three months ended March 31, 2019 Enterprise Software Appraisal and Tax Corporate Totals Recurring revenues $ 158,654 $ 8,773 $ — $ 167,427 Non-recurring revenues 65,168 14,474 (3 ) 79,639 Intercompany 3,553 — (3,553 ) — Total revenues $ 227,375 $ 23,247 $ (3,556 ) $ 247,066 For the three months ended March 31, 2018 Enterprise Software Appraisal and Tax Corporate Totals Recurring revenues $ 134,496 $ 8,429 $ — $ 142,925 Non-recurring revenues 64,775 13,134 340 78,249 Intercompany 3,237 — (3,237 ) — Total revenues $ 202,508 $ 21,563 $ (2,897 ) $ 221,174 Total deferred revenue, including long-term, by segment is as follows (in thousands): March 31, 2019 December 31, 2018 Enterprise Software $ 298,184 $ 327,521 Appraisal and Tax 21,589 20,018 Corporate 569 3,397 Totals $ 320,342 $ 350,936 Changes in total deferred revenue, including long-term, were as follows (in thousands): March 31, 2019 Balance, beginning of period December 31, 2018 $ 350,936 Deferral of revenue 167,975 Recognition of deferred revenue (198,569 ) Balance, end of period $ 320,342 Transaction Price Allocated to the Remaining Performance Obligations The aggregate amount of transaction price allocated to the remaining performance obligations represents contracted revenue that has not yet been recognized ("Backlog"), which includes deferred revenue and amounts that will be invoiced and recognized as revenue in future periods. Backlog as of March 31, 2019 , was $1.3 billion , of which we expect to recognize approximately 50% as revenue over the next 12 months

Other Assets

Other Assets	3 Months Ended
	Mar. 31, 2019
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Other Assets	Other Assets Cash and cash equivalents consist of cash on deposit with several domestic banks and money market funds. As of March 31, 2019 , we have $81.0 million in investment grade corporate and municipal bonds with maturity dates ranging through 2022

Revolving Line of Credit

Revolving Line of Credit	3 Months Ended
	Mar. 31, 2019
Debt Disclosure [Abstract]
Revolving Line of Credit	Revolving Line of Credit On November 16, 2015, we entered into a $300 million credit agreement with various lender parties and Wells Fargo Bank, National Association, as Administrative Agent (the “Credit Facility”). The Credit Facility provides for a revolving credit line up to $300 million , including a $10 million sublimit for letters of credit. The Credit Facility matures on November 16, 2020 . Borrowings under the Credit Facility may be used for general corporate purposes, including working capital requirements, acquisitions and share repurchases. Borrowings under the Credit Facility bear interest at a rate of either (1) Wells Fargo Bank’s prime rate (subject to certain higher rate determinations) plus a margin of 0.25% to 1.00% or (2) the 30, 60, 90 or 180 day LIBOR rate plus a margin of 1.25% to 2.00% . As of March 31, 2019 , the interest rates were 5.75% under the Wells Fargo Bank's prime rate. The Credit Facility is secured by substantially all of our assets. The Credit Facility requires us to maintain certain financial ratios and other financial conditions and prohibits us from making certain investments, advances, cash dividends or loans, and limits incurrence of additional indebtedness and liens. As of March 31, 2019 , we were in compliance with those covenants. As of March 31, 2019 , we had outstanding borrowings of $85.0 million at interest rates of approximately 3.80% , under a 30-day LIBOR contract. As of March 31, 2019 , available borrowing capacity under the Credit Facility was $215.0 million

Income Tax Provision

Income Tax Provision	3 Months Ended
	Mar. 31, 2019
Income Tax Disclosure [Abstract]
Income Tax Provision	Income Tax Provision We had an effective income tax rate of 22.0% for the three months ended March 31, 2019 , compared to 4.1% for the three months ended March 31, 2018 . The effective income tax rates for the periods presented were different from the statutory United States federal income tax rate of 21% due to excess tax benefits related to stock option exercises, state income taxes, non-deductible business expenses, and the tax benefit of research tax credits. The excess tax benefit related to stock option exercises realized was $1.7 million for the three months ended March 31, 2019 , compared to $9.1 million for the three months ended March 31, 2018 . Excluding the excess tax benefits, the effective rate was 26.8% for the three months ended March 31, 2019 , compared to 27.2% for the three months ended March 31, 2018 . The increase in the effective tax rate for the three months ended March 31, 2019 , as compared to the same period in 2018 was principally due to the decrease in excess tax benefit related to stock option exercises. We made tax payments of $88,000 and $218,000 in the three months ended March 31, 2019 , and 2018

Earnings Per Share

Earnings Per Share	3 Months Ended
	Mar. 31, 2019
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share The following table details the reconciliation of basic earnings per share to diluted earnings per share (in thousands): Three Months Ended March 31, 2019 2018 Numerator for basic and diluted earnings per share: Net income $ 27,348 $ 37,825 Denominator: Weighted-average basic common shares outstanding 38,308 38,002 Assumed conversion of dilutive securities: Stock awards 1,277 1,834 Denominator for diluted earnings per share - Adjusted weighted-average shares 39,585 39,836 Earnings per common share: Basic $ 0.71 $ 1.00 Diluted $ 0.69 $ 0.95 For the three months ended March 31, 2019 and March 31, 2018 , stock awards representing the right to purchase common stock of approximately 1,253,000 shares and 1,111,000

Leases

Leases	3 Months Ended
	Mar. 31, 2019
Leases [Abstract]
Leases	Leases We lease office facilities for use in our operations, as well as transportation and other equipment. Most of our leases are non-cancelable operating lease agreements and they expire from one year to seven years . Some of these leases include options to extend for up to 10 years .We had no finance leases and no related party lease agreements as of March 31, 2019 . Operating lease cost was approximately $2.1 million for the three months ended March 31, 2019 and $1.6 million for the three months ended March 31, 2018 . The components of operating lease expense were as follows (in thousands): Lease Costs Financial Statement Classification Three Months Ended March 31, 2019 Operating lease cost Selling, general and administrative expenses $ 1,370 Short-term lease cost Selling, general and administrative expenses 570 Variable lease cost Selling, general and administrative expenses 163 Net lease cost $ 2,103 As of March 31, 2019 , ROU lease assets and lease liabilities for our operating leases were recorded in the condensed consolidated balance sheet as follows (in thousands): March 31, 2019 2019 Assets: Operating lease right-of-use assets $ 20,067 Liabilities: Operating leases, short-term 5,777 Operating leases, long-term 18,956 Total lease liabilities $ 24,733 Supplemental information related to leases was as follows (in thousands): Other Information Three Months Ended March 31, 2019 Cash Flows: Cash paid amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 1,530 Lease Term and Discount Rate: Weighted average remaining lease term (years) 5 Weighted average discount rate 4.00 % As of March 31, 2019 , maturities of lease liabilities were as follows (in thousands): Year ending December 31, Amount 2019 (Remaining 2019) $ 5,316 2020 6,579 2021 5,293 2022 3,375 2023 2,716 Thereafter 3,989 Total lease payments 27,268 Less: Interest (2,535 ) Present value of operating lease liabilities $ 24,733 As of December 31, 2018 , the future minimum lease commitments related to lease agreements under Topic 840, the predecessor of Topic 842, were as follows (in thousands): Year ending December 31, Amount 2019 $ 5,994 2020 5,146 2021 3,976 2022 1,925 2023 1,164 Thereafter 2,132 Total $ 20,337 We own office buildings in Bangor, Falmouth and Yarmouth, Maine; Lubbock and Plano, Texas; Troy, Michigan; Latham, New York; and Moraine, Ohio. We lease space in some of these buildings to third-party tenants. The property we lease to others under operating leases consists primarily of specific facilities where one tenant obtains substantially all of the economic benefit from the asset and has the right to direct the use of the asset. These non-cancelable leases expire between 2019 and 2025, some of which have options to extend the lease for up to five years . We determine if an arrangement is a lease at inception. None of our leases allow the lessee to purchase the leased asset. Rental income for the three months ended March 31, 2019 totaled $284,000 and for the three months ended March 31, 2018 totaled $357,000 . Rental income is included in Other revenue on the condensed consolidated statement of income. Future minimum operating rental income based on contractual agreements are as follows (in thousands): Year ending December 31, Amount 2019 (Remaining 2019) $ 998 2020 1,341 2021 1,372 2022 1,402 2023 1,432 Thereafter 2,395 Total $ 8,940 As of March 31, 2019
Leases	Leases We lease office facilities for use in our operations, as well as transportation and other equipment. Most of our leases are non-cancelable operating lease agreements and they expire from one year to seven years . Some of these leases include options to extend for up to 10 years .We had no finance leases and no related party lease agreements as of March 31, 2019 . Operating lease cost was approximately $2.1 million for the three months ended March 31, 2019 and $1.6 million for the three months ended March 31, 2018 . The components of operating lease expense were as follows (in thousands): Lease Costs Financial Statement Classification Three Months Ended March 31, 2019 Operating lease cost Selling, general and administrative expenses $ 1,370 Short-term lease cost Selling, general and administrative expenses 570 Variable lease cost Selling, general and administrative expenses 163 Net lease cost $ 2,103 As of March 31, 2019 , ROU lease assets and lease liabilities for our operating leases were recorded in the condensed consolidated balance sheet as follows (in thousands): March 31, 2019 2019 Assets: Operating lease right-of-use assets $ 20,067 Liabilities: Operating leases, short-term 5,777 Operating leases, long-term 18,956 Total lease liabilities $ 24,733 Supplemental information related to leases was as follows (in thousands): Other Information Three Months Ended March 31, 2019 Cash Flows: Cash paid amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 1,530 Lease Term and Discount Rate: Weighted average remaining lease term (years) 5 Weighted average discount rate 4.00 % As of March 31, 2019 , maturities of lease liabilities were as follows (in thousands): Year ending December 31, Amount 2019 (Remaining 2019) $ 5,316 2020 6,579 2021 5,293 2022 3,375 2023 2,716 Thereafter 3,989 Total lease payments 27,268 Less: Interest (2,535 ) Present value of operating lease liabilities $ 24,733 As of December 31, 2018 , the future minimum lease commitments related to lease agreements under Topic 840, the predecessor of Topic 842, were as follows (in thousands): Year ending December 31, Amount 2019 $ 5,994 2020 5,146 2021 3,976 2022 1,925 2023 1,164 Thereafter 2,132 Total $ 20,337 We own office buildings in Bangor, Falmouth and Yarmouth, Maine; Lubbock and Plano, Texas; Troy, Michigan; Latham, New York; and Moraine, Ohio. We lease space in some of these buildings to third-party tenants. The property we lease to others under operating leases consists primarily of specific facilities where one tenant obtains substantially all of the economic benefit from the asset and has the right to direct the use of the asset. These non-cancelable leases expire between 2019 and 2025, some of which have options to extend the lease for up to five years . We determine if an arrangement is a lease at inception. None of our leases allow the lessee to purchase the leased asset. Rental income for the three months ended March 31, 2019 totaled $284,000 and for the three months ended March 31, 2018 totaled $357,000 . Rental income is included in Other revenue on the condensed consolidated statement of income. Future minimum operating rental income based on contractual agreements are as follows (in thousands): Year ending December 31, Amount 2019 (Remaining 2019) $ 998 2020 1,341 2021 1,372 2022 1,402 2023 1,432 Thereafter 2,395 Total $ 8,940 As of March 31, 2019

Share-Based Compensation

Share-Based Compensation	3 Months Ended
	Mar. 31, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-Based Compensation	Share-Based Compensation The following table summarizes share-based compensation expense related to share-based awards recorded in the condensed consolidated statements of income, pursuant to ASC 718, Stock Compensation (in thousands): Three Months Ended March 31, 2019 2018 Cost of software services, maintenance and subscriptions $ 3,798 $ 2,776 Selling, general and administrative expenses 10,618 7,781 Total share-based compensation expense $ 14,416 $ 10,557

Segment and Related Information

Segment and Related Information	3 Months Ended
	Mar. 31, 2019
Segment Reporting [Abstract]
Segment and Related Information	Segment and Related Information We provide integrated information management solutions and services for the public sector, with a focus on local governments. We provide our software systems and services and appraisal services through five business units, which focus on the following products: • financial management, education and planning, regulatory and maintenance software solutions; • financial management, municipal courts, planning, regulatory and maintenance, and land and vital records management software solutions; • courts and justice and public safety software solutions; • data and insights solutions; and • appraisal and tax software solutions and property appraisal services. In accordance with ASC 280-10, Segment Reporting, the financial management, education and planning, regulatory and maintenance software solutions unit; financial management, municipal courts, planning, regulatory and maintenance, and land and vital records management software solutions unit; courts and justice and public safety software solutions unit; and the data and insights solutions unit meet the criteria for aggregation and are presented in one reportable segment, the Enterprise Software (“ES”) segment. The ES segment provides municipal and county governments and schools with software systems and services to meet their information technology and automation needs for mission-critical “back-office” functions such as financial management and courts and justice processes; public safety; planning, regulatory and maintenance; land and vital records management, and data analytics. The Appraisal and Tax (“A&T”) segment provides systems and software that automate the appraisal and assessment of real and personal property as well as property appraisal outsourcing services for local governments and taxing authorities. Property appraisal outsourcing services include: the physical inspection of commercial and residential properties; data collection and processing; computer analysis for property valuation; preparation of tax rolls; community education; and arbitration between taxpayers and the assessing jurisdiction. We evaluate performance based on several factors, of which the primary financial measure is business segment operating income. We define segment operating income for our business units as income before non-cash amortization of intangible assets associated with their acquisitions, interest expense and income taxes. Segment operating income includes intercompany transactions. The majority of intercompany transactions relate to contracts involving more than one unit and are valued based on the contractual arrangement. Segment operating income for corporate primarily consists of compensation costs for the executive management team and certain accounting and administrative staff and share-based compensation expense for the entire company. Corporate segment operating income also includes revenues and expenses related to a company-wide user conference. For the three months ended March 31, 2019 Enterprise Appraisal and Tax Corporate Totals Revenues Software licenses and royalties $ 19,011 $ 2,782 $ — $ 21,793 Subscriptions 64,642 2,633 — 67,275 Software services 41,967 6,476 — 48,443 Maintenance 94,012 6,140 — 100,152 Appraisal services — 5,214 — 5,214 Hardware and other 4,190 2 (3 ) 4,189 Intercompany 3,553 — (3,553 ) — Total revenues $ 227,375 $ 23,247 $ (3,556 ) $ 247,066 Segment operating income $ 57,034 $ 5,535 $ (16,546 ) $ 46,023 For the three months ended March 31, 2018 Enterprise Software Appraisal and Tax Corporate Totals Revenues Software licenses and royalties $ 20,689 $ 2,087 $ — $ 22,776 Subscriptions 46,683 2,345 — 49,028 Software services 40,286 5,653 — 45,939 Maintenance 87,813 6,084 — 93,897 Appraisal services — 5,394 — 5,394 Hardware and other 3,800 — 340 4,140 Intercompany 3,237 — (3,237 ) — Total revenues $ 202,508 $ 21,563 $ (2,897 ) $ 221,174 Segment operating income $ 56,615 $ 4,647 $ (13,727 ) $ 47,535 Three Months Ended March 31, Reconciliation of reportable segment operating income to the Company's consolidated totals: 2019 2018 Total segment operating income $ 46,023 $ 47,535 Amortization of acquired software (6,682 ) (5,382 ) Amortization of other intangibles (4,850 ) (3,315 ) Other income (expense), net 586 599 Income before income taxes $ 35,077 $ 39,437

Disaggregation of Revenue

Disaggregation of Revenue	3 Months Ended
	Mar. 31, 2019
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	Deferred Commissions Sales commissions earned by our sales force are considered incremental and recoverable costs of obtaining a contract with a customer. Sales commissions for initial contracts are deferred and then amortized commensurate with the recognition of associated revenue over a period of benefit that we have determined to be three to seven years . Deferred commissions were $23.6 million and $21.9 million as of March 31, 2019 , and December 31, 2018 , respectively. Amortization expense was $3.8 million for the three months ended March 31, 2019 , and $3.5 million for the three months ended March 31, 2018 . There were no The tables below show disaggregation of revenue into categories that reflect how economic factors affect the nature, amount, timing, and uncertainty of revenue and cash flows. Timing of Revenue Recognition Timing of revenue recognition by revenue category during the period is as follows (in thousands): For the three months ended March 31, 2019 Products and services transferred at a point in time Products and services transferred over time Total Revenues Software licenses and royalties $ 16,910 $ 4,883 $ 21,793 Subscriptions — 67,275 67,275 Software services — 48,443 48,443 Maintenance — 100,152 100,152 Appraisal services — 5,214 5,214 Hardware and other 4,189 — 4,189 Total $ 21,099 $ 225,967 $ 247,066 For the three months ended March 31, 2018 Products and services transferred at a point in time Products and services transferred over time Total Revenues Software licenses and royalties $ 19,063 $ 3,713 $ 22,776 Subscriptions — 49,028 49,028 Software services — 45,939 45,939 Maintenance — 93,897 93,897 Appraisal services — 5,394 5,394 Hardware and other 4,140 — 4,140 Total $ 23,203 $ 197,971 $ 221,174 Recurring Revenue The majority of our revenue is comprised of recurring revenues from maintenance and subscriptions. Virtually all of our on-premises software clients contract with us for maintenance and support, which provides us with a significant source of recurring revenue. We generally provide maintenance and support for our on-premises clients under annual, or in some cases, multi-year contracts. The contract terms for subscription arrangements range from one to 10 years but are typically contracted for initial periods of three to five years , providing a significant source of recurring revenues on an annual basis. Non-recurring revenues are derived for all other revenue categories. Recurring revenues and non-recurring revenues recognized during the period are as follows (in thousands): For the three months ended March 31, 2019 Enterprise Software Appraisal and Tax Corporate Totals Recurring revenues $ 158,654 $ 8,773 $ — $ 167,427 Non-recurring revenues 65,168 14,474 (3 ) 79,639 Intercompany 3,553 — (3,553 ) — Total revenues $ 227,375 $ 23,247 $ (3,556 ) $ 247,066 For the three months ended March 31, 2018 Enterprise Software Appraisal and Tax Corporate Totals Recurring revenues $ 134,496 $ 8,429 $ — $ 142,925 Non-recurring revenues 64,775 13,134 340 78,249 Intercompany 3,237 — (3,237 ) — Total revenues $ 202,508 $ 21,563 $ (2,897 ) $ 221,174 Total deferred revenue, including long-term, by segment is as follows (in thousands): March 31, 2019 December 31, 2018 Enterprise Software $ 298,184 $ 327,521 Appraisal and Tax 21,589 20,018 Corporate 569 3,397 Totals $ 320,342 $ 350,936 Changes in total deferred revenue, including long-term, were as follows (in thousands): March 31, 2019 Balance, beginning of period December 31, 2018 $ 350,936 Deferral of revenue 167,975 Recognition of deferred revenue (198,569 ) Balance, end of period $ 320,342 Transaction Price Allocated to the Remaining Performance Obligations The aggregate amount of transaction price allocated to the remaining performance obligations represents contracted revenue that has not yet been recognized ("Backlog"), which includes deferred revenue and amounts that will be invoiced and recognized as revenue in future periods. Backlog as of March 31, 2019 , was $1.3 billion , of which we expect to recognize approximately 50% as revenue over the next 12 months

Deferred Revenue and Performanc

Deferred Revenue and Performance Obligations	3 Months Ended
	Mar. 31, 2019
Revenue from Contract with Customer [Abstract]
Deferred Revenue and Performance Obligations	Deferred Commissions Sales commissions earned by our sales force are considered incremental and recoverable costs of obtaining a contract with a customer. Sales commissions for initial contracts are deferred and then amortized commensurate with the recognition of associated revenue over a period of benefit that we have determined to be three to seven years . Deferred commissions were $23.6 million and $21.9 million as of March 31, 2019 , and December 31, 2018 , respectively. Amortization expense was $3.8 million for the three months ended March 31, 2019 , and $3.5 million for the three months ended March 31, 2018 . There were no The tables below show disaggregation of revenue into categories that reflect how economic factors affect the nature, amount, timing, and uncertainty of revenue and cash flows. Timing of Revenue Recognition Timing of revenue recognition by revenue category during the period is as follows (in thousands): For the three months ended March 31, 2019 Products and services transferred at a point in time Products and services transferred over time Total Revenues Software licenses and royalties $ 16,910 $ 4,883 $ 21,793 Subscriptions — 67,275 67,275 Software services — 48,443 48,443 Maintenance — 100,152 100,152 Appraisal services — 5,214 5,214 Hardware and other 4,189 — 4,189 Total $ 21,099 $ 225,967 $ 247,066 For the three months ended March 31, 2018 Products and services transferred at a point in time Products and services transferred over time Total Revenues Software licenses and royalties $ 19,063 $ 3,713 $ 22,776 Subscriptions — 49,028 49,028 Software services — 45,939 45,939 Maintenance — 93,897 93,897 Appraisal services — 5,394 5,394 Hardware and other 4,140 — 4,140 Total $ 23,203 $ 197,971 $ 221,174 Recurring Revenue The majority of our revenue is comprised of recurring revenues from maintenance and subscriptions. Virtually all of our on-premises software clients contract with us for maintenance and support, which provides us with a significant source of recurring revenue. We generally provide maintenance and support for our on-premises clients under annual, or in some cases, multi-year contracts. The contract terms for subscription arrangements range from one to 10 years but are typically contracted for initial periods of three to five years , providing a significant source of recurring revenues on an annual basis. Non-recurring revenues are derived for all other revenue categories. Recurring revenues and non-recurring revenues recognized during the period are as follows (in thousands): For the three months ended March 31, 2019 Enterprise Software Appraisal and Tax Corporate Totals Recurring revenues $ 158,654 $ 8,773 $ — $ 167,427 Non-recurring revenues 65,168 14,474 (3 ) 79,639 Intercompany 3,553 — (3,553 ) — Total revenues $ 227,375 $ 23,247 $ (3,556 ) $ 247,066 For the three months ended March 31, 2018 Enterprise Software Appraisal and Tax Corporate Totals Recurring revenues $ 134,496 $ 8,429 $ — $ 142,925 Non-recurring revenues 64,775 13,134 340 78,249 Intercompany 3,237 — (3,237 ) — Total revenues $ 202,508 $ 21,563 $ (2,897 ) $ 221,174 Total deferred revenue, including long-term, by segment is as follows (in thousands): March 31, 2019 December 31, 2018 Enterprise Software $ 298,184 $ 327,521 Appraisal and Tax 21,589 20,018 Corporate 569 3,397 Totals $ 320,342 $ 350,936 Changes in total deferred revenue, including long-term, were as follows (in thousands): March 31, 2019 Balance, beginning of period December 31, 2018 $ 350,936 Deferral of revenue 167,975 Recognition of deferred revenue (198,569 ) Balance, end of period $ 320,342 Transaction Price Allocated to the Remaining Performance Obligations The aggregate amount of transaction price allocated to the remaining performance obligations represents contracted revenue that has not yet been recognized ("Backlog"), which includes deferred revenue and amounts that will be invoiced and recognized as revenue in future periods. Backlog as of March 31, 2019 , was $1.3 billion , of which we expect to recognize approximately 50% as revenue over the next 12 months

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Other than routine litigation incidental to our business, there are no

Accounting Standards and Sign_2

Accounting Standards and Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2019
Accounting Policies [Abstract]
Use of estimates	USE OF ESTIMATES The preparation of our financial statements in conformity with accounting principles generally accepted in the United States (“GAAP”) requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Significant items subject to such estimates and assumptions include revenue recognition, determining the nature and timing of satisfaction of performance obligations, and determining the standalone selling price ("SSP") of performance obligations, variable consideration, and other obligations such as returns and refunds; loss contingencies; the estimated useful life of deferred commissions; the carrying amount and estimated useful lives of intangible assets; the carrying amount of operating lease right-of-use assets and operating lease liabilities; determining share-based compensation expense; the valuation allowance for receivables; and determining the potential outcome of future tax consequences of events that have been recognized on our consolidated financial statements or tax returns. Actual results could differ from estimates.
Revenue recognition	REVENUE RECOGNITION Nature of Products and Services We earn revenue from software licenses, royalties, subscription-based services, software services, post-contract customer support (“PCS” or “maintenance”), hardware, and appraisal services. Revenue is recognized upon transfer of control of promised products or services to customers in an amount that reflects the consideration we expect to receive in exchange for those products or services. We determine revenue recognition through the following steps: • Identification of the contract, or contracts, with a customer • Identification of the performance obligations in the contract • Determination of the transaction price • Allocation of the transaction price to the performance obligations in the contract • Recognition of revenue when, or as, we satisfy a performance obligation Most of our software arrangements with customers contain multiple performance obligations that range from software licenses, installation, training, and consulting to software modification and customization to meet specific customer needs (services), hosting, and PCS. For these contracts, we account for individual performance obligations separately when they are distinct. We evaluate whether separate performance obligations can be distinct or should be accounted for as one performance obligation. Arrangements that include software services, such as training or installation, are evaluated to determine whether the customer can benefit from the services either on their own or together with other resources readily available to the customer and whether the services are separately identifiable from other promises in the contract. The transaction price is allocated to the distinct performance obligations on a relative SSP basis. We determine the SSP based on our overall pricing objectives, taking into consideration market conditions and other factors, including the value of our contracts, the applications sold, customer demographics, and the number and types of users within our contracts. Revenue is recognized net of allowances for sales adjustments and any taxes collected from customers, which are subsequently remitted to governmental authorities. Significant Judgments: Our contracts with customers often include multiple performance obligations to a customer. When a software arrangement (license or subscription) includes both software licenses and software services, judgment is required to determine whether the software license is considered distinct and accounted for separately, or not distinct and accounted for together with the software services and recognized over time. The transaction price is allocated to the separate performance obligations on a relative SSP basis. We determine the SSP based on our overall pricing objectives, taking into consideration market conditions and other factors, including the value of our contracts, the applications sold, customer demographics, and the number and types of users within our contracts. We use a range of amounts to estimate SSP when we sell each of the products and services separately and need to determine whether there is a discount to be allocated based on the relative SSP of the various products and services. In instances where SSP is not directly observable, such as when we do not sell the product or service separately, we determine SSP using the expected cost-plus margin approach. For arrangements that involve significant production, modification or customization of the software, or where software services otherwise cannot be considered distinct, we recognize revenue as control is transferred to the customer over time using progress-to-completion methods. Depending on the contract, we measure progress-to-completion primarily using labor hours incurred, or value added. The progress-to-completion method generally results in the recognition of reasonably consistent profit margins over the life of a contract because we can provide reasonably dependable estimates of contract billings and contract costs. We use the level of profit margin that is most likely to occur on a contract. If the most likely profit margin cannot be precisely determined, the lowest probable level of profit margin in the range of estimates is used until the results can be estimated more precisely. These arrangements are often implemented over an extended time period and occasionally require us to revise total cost estimates. Amounts recognized in revenue are calculated using the progress-to-completion measurement after giving effect to any changes in our cost estimates. Changes to total estimated contract costs, if any, are recorded in the period they are determined. Estimated losses on uncompleted contracts are recorded in the period in which we first determine that a loss is apparent.
Contract balances	Contract Balances: Accounts receivable and allowance for doubtful accounts Timing of revenue recognition may differ from the timing of invoicing to customers. We record an unbilled receivable when revenue is recognized prior to invoicing, or deferred revenue when revenue is recognized subsequent to invoicing. For multi-year agreements, we generally invoice customers annually at the beginning of each annual coverage period. We record an unbilled receivable related to revenue recognized for on-premises licenses as we have an unconditional right to invoice and receive payment in the future related to those licenses. At March 31, 2019 and December 31, 2018 , total current and long-term accounts receivable, net of allowance for doubtful accounts, was $321.8 million and $314.9 million , respectively. We have recorded unbilled receivables of $113.1 million and $104.2 million at March 31, 2019 , and December 31, 2018 , respectively. Included in unbilled receivables are retention receivables of $13.4 million and $12.2 million at March 31, 2019 , and December 31, 2018 , respectively, which become payable upon the completion of the contract or completion of our fieldwork and formal hearings. Unbilled receivables expected to be collected within one year have been included with accounts receivable, current portion in the accompanying condensed consolidated balance sheets. Unbilled receivables and retention receivables expected to be collected past one year have been included with accounts receivable, long-term portion in the accompanying condensed consolidated balance sheets.
Leases	LEASES We determine if an arrangement is a lease at inception. Operating leases are included in operating lease right-of-use (“ROU”) assets, other current liabilities, and operating lease liabilities on our consolidated balance sheets. We currently do not have any finance lease arrangements.
Recently adopted accounting pronouncements	RECENTLY ADOPTED ACCOUNTING PRONOUNCEMENTS Leases. We adopted Topic 842 using the transition method that allows us to initially apply the guidance at the adoption date of January 1, 2019, and recognized a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. We used the package of practical expedients that allows us to not reassess: (1) lease classification for any expired or existing leases and (2) initial direct costs for any expired or existing leases. We did not elect to use the hindsight application for evaluating the life of the lease arrangement. The impacts of adoption are reflected in the financial information herein. For additional details, see Note 10 to our condensed consolidated financial statements.

Accounting Standards and Sign_3

Accounting Standards and Significant Accounting Policies (Tables)	3 Months Ended
	Mar. 31, 2019
Accounting Policies [Abstract]
Schedule of summary the changes in the allowances for doubtful accounts	The following table summarizes the changes in the allowance for doubtful accounts(in thousands): Three Months Ended March 31, 2019 Balance, beginning of period December 31, 2018 $ 4,647 Provisions for losses - accounts receivable 1,148 Collection of accounts previously written off (545 ) Deductions for accounts charged off or credits issued (558 ) Balance, end of period $ 4,692
Schedule of new accounting pronouncements	Amounts recognized at January 1, 2019, for operating leases were as follows (in thousands): January 1, 2019 ROU Operating assets $ 15,633 Short-term lease liability (4,344 ) Long-term lease liability (12,405 ) Retained earnings $ (1,116 )

Acquisitions (Tables)

Acquisitions (Tables)	3 Months Ended
	Mar. 31, 2019
Business Combinations [Abstract]
Schedule of the allocation of the preliminary purchase price as of the acquisition date	We have performed a preliminary valuation analysis of the fair market value of MicroPact’s assets and liabilities. The following table summarizes the allocation of the preliminary purchase price as of the acquisition date: (In thousands) Cash $ 1,983 Accounts receivable 11,852 Other current assets 8,979 Other noncurrent assets 10,417 Identifiable intangible assets 118,843 Goodwill 82,029 Accounts payable (602 ) Accrued expenses (2,432 ) Other noncurrent liabilities (8,879 ) Deferred revenue (9,898 ) Deferred tax liabilities, net (6,144 ) Total consideration $ 206,148
Schedule of pro forma information	The following unaudited pro forma consolidated operating results information has been prepared as if the MicroPact acquisition had occurred at January 1, 2018, after giving effect to certain adjustments, including amortization of intangibles, interest, transaction costs and tax effects. Three Months Ended March 31, 2019 2018 Revenues $ 258,864 $ 238,533 Net income 26,378 36,282 Basic earnings per share 0.69 0.95 Diluted earnings per share $ 0.67 $ 0.91

Shareholders' Equity (Tables)

Shareholders' Equity (Tables)	3 Months Ended
	Mar. 31, 2019
Equity [Abstract]
Summary of details activity in our common stock	The following table details activity in our common stock (in thousands): Three Months Ended March 31, 2019 2018 Shares Amount Shares Amount Purchases of treasury shares (72 ) $ (14,289 ) — $ — Stock option exercises 94 6,564 350 19,298 Employee stock plan purchases 15 2,349 12 1,798 Restricted stock units vested, net of withheld shares upon award settlement 10 $ (1,373 ) — $ —

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2019
Earnings Per Share [Abstract]
Computation of reconciliation of basic earnings per share to diluted earnings per share	The following table details the reconciliation of basic earnings per share to diluted earnings per share (in thousands): Three Months Ended March 31, 2019 2018 Numerator for basic and diluted earnings per share: Net income $ 27,348 $ 37,825 Denominator: Weighted-average basic common shares outstanding 38,308 38,002 Assumed conversion of dilutive securities: Stock awards 1,277 1,834 Denominator for diluted earnings per share - Adjusted weighted-average shares 39,585 39,836 Earnings per common share: Basic $ 0.71 $ 1.00 Diluted $ 0.69 $ 0.95

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 31, 2019
Leases [Abstract]
Schedule of lease cost	The components of operating lease expense were as follows (in thousands): Lease Costs Financial Statement Classification Three Months Ended March 31, 2019 Operating lease cost Selling, general and administrative expenses $ 1,370 Short-term lease cost Selling, general and administrative expenses 570 Variable lease cost Selling, general and administrative expenses 163 Net lease cost $ 2,103 Other Information Three Months Ended March 31, 2019 Cash Flows: Cash paid amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 1,530 Lease Term and Discount Rate: Weighted average remaining lease term (years) 5 Weighted average discount rate 4.00 %
Schedule of leases assets and liabilities	As of March 31, 2019 , ROU lease assets and lease liabilities for our operating leases were recorded in the condensed consolidated balance sheet as follows (in thousands): March 31, 2019 2019 Assets: Operating lease right-of-use assets $ 20,067 Liabilities: Operating leases, short-term 5,777 Operating leases, long-term 18,956 Total lease liabilities $ 24,733
Schedule of supplemental information related to leases	Supplemental information related to leases was as follows (in thousands): Other Information Three Months Ended March 31, 2019 Cash Flows: Cash paid amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 1,530 Lease Term and Discount Rate: Weighted average remaining lease term (years) 5 Weighted average discount rate 4.00 %
Schedule of operating lease maturity	As of March 31, 2019 , maturities of lease liabilities were as follows (in thousands): Year ending December 31, Amount 2019 (Remaining 2019) $ 5,316 2020 6,579 2021 5,293 2022 3,375 2023 2,716 Thereafter 3,989 Total lease payments 27,268 Less: Interest (2,535 ) Present value of operating lease liabilities $ 24,733
Schedule of future minimum lease commitments related to lease agreements under Topic 840	As of December 31, 2018 , the future minimum lease commitments related to lease agreements under Topic 840, the predecessor of Topic 842, were as follows (in thousands): Year ending December 31, Amount 2019 $ 5,994 2020 5,146 2021 3,976 2022 1,925 2023 1,164 Thereafter 2,132 Total $ 20,337
Schedule of future minimum operating rental income	Future minimum operating rental income based on contractual agreements are as follows (in thousands): Year ending December 31, Amount 2019 (Remaining 2019) $ 998 2020 1,341 2021 1,372 2022 1,402 2023 1,432 Thereafter 2,395 Total $ 8,940

Share-Based Compensation (Table

Share-Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Summary of share-based compensation expense related to share-based awards recorded in the statements of income	The following table summarizes share-based compensation expense related to share-based awards recorded in the condensed consolidated statements of income, pursuant to ASC 718, Stock Compensation (in thousands): Three Months Ended March 31, 2019 2018 Cost of software services, maintenance and subscriptions $ 3,798 $ 2,776 Selling, general and administrative expenses 10,618 7,781 Total share-based compensation expense $ 14,416 $ 10,557

Segment and Related Informati_2

Segment and Related Information (Tables)	3 Months Ended
	Mar. 31, 2019
Segment Reporting [Abstract]
Schedule of segment revenues and operations	For the three months ended March 31, 2019 Enterprise Appraisal and Tax Corporate Totals Revenues Software licenses and royalties $ 19,011 $ 2,782 $ — $ 21,793 Subscriptions 64,642 2,633 — 67,275 Software services 41,967 6,476 — 48,443 Maintenance 94,012 6,140 — 100,152 Appraisal services — 5,214 — 5,214 Hardware and other 4,190 2 (3 ) 4,189 Intercompany 3,553 — (3,553 ) — Total revenues $ 227,375 $ 23,247 $ (3,556 ) $ 247,066 Segment operating income $ 57,034 $ 5,535 $ (16,546 ) $ 46,023 For the three months ended March 31, 2018 Enterprise Software Appraisal and Tax Corporate Totals Revenues Software licenses and royalties $ 20,689 $ 2,087 $ — $ 22,776 Subscriptions 46,683 2,345 — 49,028 Software services 40,286 5,653 — 45,939 Maintenance 87,813 6,084 — 93,897 Appraisal services — 5,394 — 5,394 Hardware and other 3,800 — 340 4,140 Intercompany 3,237 — (3,237 ) — Total revenues $ 202,508 $ 21,563 $ (2,897 ) $ 221,174 Segment operating income $ 56,615 $ 4,647 $ (13,727 ) $ 47,535 Three Months Ended March 31, Reconciliation of reportable segment operating income to the Company's consolidated totals: 2019 2018 Total segment operating income $ 46,023 $ 47,535 Amortization of acquired software (6,682 ) (5,382 ) Amortization of other intangibles (4,850 ) (3,315 ) Other income (expense), net 586 599 Income before income taxes $ 35,077 $ 39,437
Reconciliation of operating income from segments to consolidated	Three Months Ended March 31, Reconciliation of reportable segment operating income to the Company's consolidated totals: 2019 2018 Total segment operating income $ 46,023 $ 47,535 Amortization of acquired software (6,682 ) (5,382 ) Amortization of other intangibles (4,850 ) (3,315 ) Other income (expense), net 586 599 Income before income taxes $ 35,077 $ 39,437

Disaggregation of Revenue (Tabl

Disaggregation of Revenue (Tables)	3 Months Ended
	Mar. 31, 2019
Revenue from Contract with Customer [Abstract]
Schedule of disaggregation of revenue	Recurring revenues and non-recurring revenues recognized during the period are as follows (in thousands): For the three months ended March 31, 2019 Enterprise Software Appraisal and Tax Corporate Totals Recurring revenues $ 158,654 $ 8,773 $ — $ 167,427 Non-recurring revenues 65,168 14,474 (3 ) 79,639 Intercompany 3,553 — (3,553 ) — Total revenues $ 227,375 $ 23,247 $ (3,556 ) $ 247,066 For the three months ended March 31, 2018 Enterprise Software Appraisal and Tax Corporate Totals Recurring revenues $ 134,496 $ 8,429 $ — $ 142,925 Non-recurring revenues 64,775 13,134 340 78,249 Intercompany 3,237 — (3,237 ) — Total revenues $ 202,508 $ 21,563 $ (2,897 ) $ 221,174 For the three months ended March 31, 2019 Products and services transferred at a point in time Products and services transferred over time Total Revenues Software licenses and royalties $ 16,910 $ 4,883 $ 21,793 Subscriptions — 67,275 67,275 Software services — 48,443 48,443 Maintenance — 100,152 100,152 Appraisal services — 5,214 5,214 Hardware and other 4,189 — 4,189 Total $ 21,099 $ 225,967 $ 247,066 For the three months ended March 31, 2018 Products and services transferred at a point in time Products and services transferred over time Total Revenues Software licenses and royalties $ 19,063 $ 3,713 $ 22,776 Subscriptions — 49,028 49,028 Software services — 45,939 45,939 Maintenance — 93,897 93,897 Appraisal services — 5,394 5,394 Hardware and other 4,140 — 4,140 Total $ 23,203 $ 197,971 $ 221,174

Deferred Revenue and Performa_2

Deferred Revenue and Performance Obligations (Tables)	3 Months Ended
	Mar. 31, 2019
Revenue from Contract with Customer [Abstract]
Changes in deferred revenue	Changes in total deferred revenue, including long-term, were as follows (in thousands): March 31, 2019 Balance, beginning of period December 31, 2018 $ 350,936 Deferral of revenue 167,975 Recognition of deferred revenue (198,569 ) Balance, end of period $ 320,342 March 31, 2019 December 31, 2018 Enterprise Software $ 298,184 $ 327,521 Appraisal and Tax 21,589 20,018 Corporate 569 3,397 Totals $ 320,342 $ 350,936

Accounting Standards and Sign_4

Accounting Standards and Significant Accounting Policies - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accounts receivable, net	$ 321.8	$ 314.9
Minimum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Typical contract term	3 years
Contract term	1 year
Accounts receivable payment term	30 days
Sales commissions amortization period	3 years
Maximum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Typical contract term	5 years
Contract term	10 years
Sales commissions amortization period	7 years
Subscription - Hosting Services | Minimum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Contract term	1 year
Appraisal services | Minimum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Contract term	1 year
Appraisal services | Maximum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Contract term	3 years
Unbilled Revenues
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accounts receivable, net	$ 113.1	104.2
Retention Receivable | Unbilled Revenues
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accounts receivable, net	$ 13.4	$ 12.2

Accounting Standards and Sign_5

Accounting Standards and Significant Accounting Policies - Schedule of summary the changes in the allowances for doubtful accounts (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)
Allowance for Doubtful Accounts Receivable [Roll Forward]
Balance, beginning of period December 31, 2017	$ 4,647
Provisions for losses - accounts receivable	1,148
Collection of accounts previously written off	(545)
Deductions for accounts charged off or credits issued	(558)
Balance, end of period	$ 4,692

Accounting Standards and Sign_6

Accounting Standards and Significant Accounting Policies - Schedule of new accounting pronouncements (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease right-of-use assets	$ 20,067
Short-term lease liability	(5,777)
Long-term lease liability	(18,956)
Retained earnings	$ (798,157)		$ (771,925)
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease right-of-use assets		$ 15,633
Short-term lease liability		(4,344)
Long-term lease liability		(12,405)
Retained earnings		$ (1,116)

Acquisitions - Narrative (Detai

Acquisitions - Narrative (Details) - USD ($) $ in Thousands	Feb. 28, 2019	Sep. 30, 2018	Aug. 31, 2018	Mar. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Goodwill				$ 834,572	$ 753,718
MicroPact and MyCivic
Business Acquisition [Line Items]
Financial advisory and legal fees				695
MicroPact
Business Acquisition [Line Items]
Cash	$ 1,983
Business acquisition consideration	204,200
Payments to acquire business	197,500
Accrued contingent consideration	7,000
Accrued acquisition holdbacks	1,700
Tangible assets acquired	33,200
Liabilities assumed	21,800
Goodwill	82,029
Identifiable intangible assets	$ 118,843
Weighted average useful life (in years)	10 years
Deferred tax liabilities, net	$ 6,144
Revenue, actual				5,500
Income (loss), actual				$ (400)
MyCivic
Business Acquisition [Line Items]
Business acquisition consideration			$ 3,700
Payments to acquire business			$ 3,600
Accrued working capital hold back		$ 90

Acquisitions - Assets and Liabi

Acquisitions - Assets and Liabilities Acquired (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Feb. 28, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Goodwill	$ 834,572		$ 753,718
MicroPact
Business Acquisition [Line Items]
Cash		$ 1,983
Accounts receivable		11,852
Other current assets		8,979
Other noncurrent assets		10,417
Identifiable intangible assets		118,843
Goodwill		82,029
Accounts payable		(602)
Accrued expenses		(2,432)
Other noncurrent liabilities		(8,879)
Deferred revenue		(9,898)
Deferred tax liabilities, net		(6,144)
Total consideration		$ 206,148

Acquisitions - Pro-forma Inform

Acquisitions - Pro-forma Information (Details) - MicroPact - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Business Acquisition [Line Items]
Revenues	$ 258,864	$ 238,533
Net income	$ 26,378	$ 36,282
Basic earnings per share (usd per share)	$ 0.69	$ 0.95
Diluted earnings per share (usd per share)	$ 0.67	$ 0.91

Shareholders' Equity - Summary

Shareholders' Equity - Summary of Activities in Common Stock (Detail) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Equity [Abstract]
Purchases of common stock (in shares)	(72)	0
Stock option exercises (in shares)	94	350
Employee stock plan purchases (in shares)	15	12
Restricted stock units vested, net of withheld shares upon award settlement (in shares)	10	0
Treasury stock purchases	$ (14,289)	$ 0
Stock option exercises, amount	6,564	19,298
Issuance of shares pursuant to employee stock purchase plan	2,349	1,798
Restricted stock units vested, net of withheld shares upon award settlement	$ (1,373)	$ 0

Shareholders' Equity - Addition

Shareholders' Equity - Additional Information (Detail) shares in Millions	Mar. 31, 2019shares
Equity [Abstract]
Number of shares authorized to be repurchased (in shares)	2.6

Deferred Commissions (Details)

Deferred Commissions (Details) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Capitalized Contract Cost [Line Items]
Deferred commissions	$ 23,600,000		$ 21,900,000
Deferred commissions amortization	3,800,000	$ 3,500,000
Deferred commissions impairment	$ 0	$ 0
Minimum
Capitalized Contract Cost [Line Items]
Sales commissions amortization period	3 years
Maximum
Capitalized Contract Cost [Line Items]
Sales commissions amortization period	7 years

Other Assets (Detail)

Other Assets (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2019USD ($)
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Purchase of held to maturity securities	$ 81

Revolving Line of Credit (Detai

Revolving Line of Credit (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018	Nov. 16, 2015
Line Of Credit Facility [Line Items]
Effective percentage interest rate	3.80%
Outstanding borrowings	$ 85,000,000	$ 0
Revolving Credit Facility | Credit Agreement
Line Of Credit Facility [Line Items]
Revolving credit facility, maximum borrowing capacity			$ 300,000,000
Outstanding borrowings	85,000,000
Line of credit facility, unused borrowing capacity	$ 215,000,000
Revolving Credit Facility | Credit Agreement | Prime Commercial Lending Rate
Line Of Credit Facility [Line Items]
Effective percentage interest rate	5.75%
Revolving Credit Facility | Credit Agreement | Minimum | Prime Commercial Lending Rate
Line Of Credit Facility [Line Items]
Line of credit facility interest rate	0.25%
Revolving Credit Facility | Credit Agreement | Minimum | Libor Rate
Line Of Credit Facility [Line Items]
Line of credit facility interest rate	1.25%
Revolving Credit Facility | Credit Agreement | Maximum | Prime Commercial Lending Rate
Line Of Credit Facility [Line Items]
Line of credit facility interest rate	1.00%
Revolving Credit Facility | Credit Agreement | Maximum | Libor Rate
Line Of Credit Facility [Line Items]
Line of credit facility interest rate	2.00%
Letter of Credit | Revolving Credit Facility | Credit Agreement
Line Of Credit Facility [Line Items]
Revolving credit facility, maximum borrowing capacity			$ 10,000,000

Income Tax Provision (Detail)

Income Tax Provision (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Income Tax Disclosure [Abstract]
Effective income tax rates	22.00%	4.10%
Excess tax benefit	$ 1,700	$ 9,100
Effective income tax rate excluding excess tax benefit	26.80%	27.20%
Income tax payments	$ 88	$ 218

Earnings Per Share - Computatio

Earnings Per Share - Computation of Basic Earnings and Diluted Earnings Per Share Data (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Numerator of Basic and Diluted Earnings Per Share [Abstract]
Net income	$ 27,348	$ 37,825
Denominator:
Weighted-average basic common shares outstanding (in shares)	38,308	38,002
Assumed conversion of dilutive securities:
Stock awards (in shares)	1,277	1,834
Denominator for diluted earnings per share - Adjusted weighted-average shares (in shares)	39,585	39,836
Earnings per common share:
Basic (usd per share)	$ 0.71	$ 1
Diluted (usd per share)	$ 0.69	$ 0.95

Earnings Per Share - Additional

Earnings Per Share - Additional Information (Detail) - shares shares in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Earnings Per Share [Abstract]
Antidilutive securities excluded from computation of earnings per shares (in shares)	1,253	1,111

Leases - Additional Information

Leases - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Lessee, Lease, Description [Line Items]
Operating lease renewal term (up to)	10 years
Operating lease, cost	$ 2,103	$ 1,600
Rental income	$ 284	$ 357
Lessor, operating lease renewal term	5 years
Minimum
Lessee, Lease, Description [Line Items]
Operating lease term	1 year
Maximum
Lessee, Lease, Description [Line Items]
Operating lease term	7 years

Leases - Schedule of lease cost

Leases - Schedule of lease cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Leases [Abstract]
Operating lease cost	$ 1,370
Short-term lease cost	570
Variable lease cost	163
Net lease cost	$ 2,103	$ 1,600

Leases - Schedule of leases ass

Leases - Schedule of leases assets and liabilities (Details) $ in Thousands	Mar. 31, 2019USD ($)
Assets:
Operating lease right-of-use assets	$ 20,067
Liabilities:
Operating leases, short-term	5,777
Operating leases, long-term	18,956
Total lease liabilities	$ 24,733

Leases - Schedule of other info

Leases - Schedule of other information related to leases (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)
Leases [Abstract]
Operating cash flows from operating leases	$ 1,530
Weighted average remaining lease term (years)	5 years
Weighted average discount rate	4.00%

Leases - Maturity of lease liab

Leases - Maturity of lease liabilities (Details) $ in Thousands	Mar. 31, 2019USD ($)
Operating Leases
2019	$ 5,316
2020	6,579
2021	5,293
2022	3,375
2023	2,716
Thereafter	3,989
Total lease payments	27,268
Less: Interest	(2,535)
Present value of lease liabilities	$ 24,733

Leases - Schedule of future min

Leases - Schedule of future minimum lease commitments related to lease agreements under Topic 840 (Details) $ in Thousands	Dec. 31, 2018USD ($)
Leases [Abstract]
2019	$ 5,994
2020	5,146
2021	3,976
2022	1,925
2023	1,164
Thereafter	2,132
Total	$ 20,337

Leases - Schedule of future m_2

Leases - Schedule of future minimum operating rental income (Details) $ in Thousands	Mar. 31, 2019USD ($)
Leases [Abstract]
2019 (Remaining 2019)	$ 998
2020	1,341
2021	1,372
2022	1,402
2023	1,432
Thereafter	2,395
Total	$ 8,940

Share-Based Compensation (Detai

Share-Based Compensation (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense	$ 14,416	$ 10,557
Cost of software services, maintenance and subscriptions
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense	3,798	2,776
Selling, general and administrative expenses
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense	$ 10,618	$ 7,781

Segment and Related Informati_3

Segment and Related Information - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2019Business_UnitSegment
Segment Reporting Information [Line Items]
Number of business units | Business_Unit	5
Enterprise Software
Segment Reporting Information [Line Items]
Number of reportable segment | Segment	1

Segment and Related Informati_4

Segment and Related Information - Schedule of Segment Revenues and Operations (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Segment Reporting Information [Line Items]
Revenue	$ 247,066	$ 221,174
Operating income	34,491	38,838
Operating segments | Enterprise Software
Segment Reporting Information [Line Items]
Revenue	227,375	202,508
Operating income	57,034	56,615
Operating segments | Appraisal and Tax
Segment Reporting Information [Line Items]
Revenue	23,247	21,563
Operating income	5,535	4,647
Intercompany | Enterprise Software
Segment Reporting Information [Line Items]
Revenue	3,553	3,237
Intercompany | Appraisal and Tax
Segment Reporting Information [Line Items]
Revenue	0	0
Intercompany | Corporate
Segment Reporting Information [Line Items]
Revenue	(3,553)	(3,237)
Corporate
Segment Reporting Information [Line Items]
Operating income	(16,546)	(13,727)
Operating segment and corporate non-segment
Segment Reporting Information [Line Items]
Operating income	46,023	47,535
Software licenses and royalties
Segment Reporting Information [Line Items]
Revenue	21,793	22,776
Software licenses and royalties | Enterprise Software
Segment Reporting Information [Line Items]
Revenue	19,011	20,689
Software licenses and royalties | Appraisal and Tax
Segment Reporting Information [Line Items]
Revenue	2,782	2,087
Software licenses and royalties | Corporate
Segment Reporting Information [Line Items]
Revenue	0	0
Subscriptions
Segment Reporting Information [Line Items]
Revenue	67,275	49,028
Subscriptions | Enterprise Software
Segment Reporting Information [Line Items]
Revenue	64,642	46,683
Subscriptions | Appraisal and Tax
Segment Reporting Information [Line Items]
Revenue	2,633	2,345
Subscriptions | Corporate
Segment Reporting Information [Line Items]
Revenue	0	0
Software services
Segment Reporting Information [Line Items]
Revenue	48,443	45,939
Software services | Enterprise Software
Segment Reporting Information [Line Items]
Revenue	41,967	40,286
Software services | Appraisal and Tax
Segment Reporting Information [Line Items]
Revenue	6,476	5,653
Software services | Corporate
Segment Reporting Information [Line Items]
Revenue	0	0
Maintenance
Segment Reporting Information [Line Items]
Revenue	100,152	93,897
Maintenance | Enterprise Software
Segment Reporting Information [Line Items]
Revenue	94,012	87,813
Maintenance | Appraisal and Tax
Segment Reporting Information [Line Items]
Revenue	6,140	6,084
Maintenance | Corporate
Segment Reporting Information [Line Items]
Revenue	0	0
Appraisal services
Segment Reporting Information [Line Items]
Revenue	5,214	5,394
Appraisal services | Enterprise Software
Segment Reporting Information [Line Items]
Revenue	0	0
Appraisal services | Appraisal and Tax
Segment Reporting Information [Line Items]
Revenue	5,214	5,394
Appraisal services | Corporate
Segment Reporting Information [Line Items]
Revenue	0	0
Hardware and other
Segment Reporting Information [Line Items]
Revenue	4,189	4,140
Hardware and other | Enterprise Software
Segment Reporting Information [Line Items]
Revenue	4,190	3,800
Hardware and other | Appraisal and Tax
Segment Reporting Information [Line Items]
Revenue	2	0
Hardware and other | Corporate
Segment Reporting Information [Line Items]
Revenue	$ (3)	$ 340

Segment and Related Informati_5

Segment and Related Information - Reconciliation of Operating Income from Segments to Consolidated (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Segment Reporting Information [Line Items]
Total segment operating income	$ 34,491	$ 38,838
Amortization of other intangibles	(4,850)	(3,315)
Other income (expense), net	586	599
Income before income taxes	35,077	39,437
Operating segment and corporate non-segment
Segment Reporting Information [Line Items]
Total segment operating income	46,023	47,535
Segment reconciling items
Segment Reporting Information [Line Items]
Amortization of acquired software	(6,682)	(5,382)
Amortization of other intangibles	(4,850)	(3,315)
Other income (expense), net	$ 586	$ 599

Disaggregation of Revenue (Deta

Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Disaggregation of Revenue [Line Items]
Revenue	$ 247,066	$ 221,174
Operating segments | Enterprise Software
Disaggregation of Revenue [Line Items]
Revenue	227,375	202,508
Operating segments | Appraisal and Tax
Disaggregation of Revenue [Line Items]
Revenue	23,247	21,563
Intercompany | Enterprise Software
Disaggregation of Revenue [Line Items]
Revenue	3,553	3,237
Intercompany | Appraisal and Tax
Disaggregation of Revenue [Line Items]
Revenue	0	0
Intercompany | Corporate
Disaggregation of Revenue [Line Items]
Revenue	(3,553)	(3,237)
Corporate and Elimination
Disaggregation of Revenue [Line Items]
Revenue	(3,556)	(2,897)
Corporate and Elimination | Corporate
Disaggregation of Revenue [Line Items]
Revenue	(3,556)	(2,897)
Recurring revenues
Disaggregation of Revenue [Line Items]
Revenue	167,427	142,925
Recurring revenues | Enterprise Software
Disaggregation of Revenue [Line Items]
Revenue	158,654	134,496
Recurring revenues | Appraisal and Tax
Disaggregation of Revenue [Line Items]
Revenue	8,773	8,429
Recurring revenues | Corporate
Disaggregation of Revenue [Line Items]
Revenue	0	0
Non-recurring revenues
Disaggregation of Revenue [Line Items]
Revenue	79,639	78,249
Non-recurring revenues | Enterprise Software
Disaggregation of Revenue [Line Items]
Revenue	65,168	64,775
Non-recurring revenues | Appraisal and Tax
Disaggregation of Revenue [Line Items]
Revenue	14,474	13,134
Non-recurring revenues | Corporate
Disaggregation of Revenue [Line Items]
Revenue	(3)	340
Software licenses and royalties
Disaggregation of Revenue [Line Items]
Revenue	21,793	22,776
Software licenses and royalties | Enterprise Software
Disaggregation of Revenue [Line Items]
Revenue	19,011	20,689
Software licenses and royalties | Appraisal and Tax
Disaggregation of Revenue [Line Items]
Revenue	2,782	2,087
Software licenses and royalties | Corporate
Disaggregation of Revenue [Line Items]
Revenue	0	0
Subscriptions
Disaggregation of Revenue [Line Items]
Revenue	67,275	49,028
Subscriptions | Enterprise Software
Disaggregation of Revenue [Line Items]
Revenue	64,642	46,683
Subscriptions | Appraisal and Tax
Disaggregation of Revenue [Line Items]
Revenue	2,633	2,345
Subscriptions | Corporate
Disaggregation of Revenue [Line Items]
Revenue	0	0
Software services
Disaggregation of Revenue [Line Items]
Revenue	48,443	45,939
Software services | Enterprise Software
Disaggregation of Revenue [Line Items]
Revenue	41,967	40,286
Software services | Appraisal and Tax
Disaggregation of Revenue [Line Items]
Revenue	6,476	5,653
Software services | Corporate
Disaggregation of Revenue [Line Items]
Revenue	0	0
Maintenance
Disaggregation of Revenue [Line Items]
Revenue	100,152	93,897
Maintenance | Enterprise Software
Disaggregation of Revenue [Line Items]
Revenue	94,012	87,813
Maintenance | Appraisal and Tax
Disaggregation of Revenue [Line Items]
Revenue	6,140	6,084
Maintenance | Corporate
Disaggregation of Revenue [Line Items]
Revenue	0	0
Appraisal services
Disaggregation of Revenue [Line Items]
Revenue	5,214	5,394
Appraisal services | Enterprise Software
Disaggregation of Revenue [Line Items]
Revenue	0	0
Appraisal services | Appraisal and Tax
Disaggregation of Revenue [Line Items]
Revenue	5,214	5,394
Appraisal services | Corporate
Disaggregation of Revenue [Line Items]
Revenue	0	0
Hardware and other
Disaggregation of Revenue [Line Items]
Revenue	4,189	4,140
Hardware and other | Enterprise Software
Disaggregation of Revenue [Line Items]
Revenue	4,190	3,800
Hardware and other | Appraisal and Tax
Disaggregation of Revenue [Line Items]
Revenue	2	0
Hardware and other | Corporate
Disaggregation of Revenue [Line Items]
Revenue	(3)	340
Products and services transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue	21,099	23,203
Products and services transferred at a point in time | Software licenses and royalties
Disaggregation of Revenue [Line Items]
Revenue	16,910	19,063
Products and services transferred at a point in time | Subscriptions
Disaggregation of Revenue [Line Items]
Revenue	0	0
Products and services transferred at a point in time | Software services
Disaggregation of Revenue [Line Items]
Revenue	0	0
Products and services transferred at a point in time | Maintenance
Disaggregation of Revenue [Line Items]
Revenue	0	0
Products and services transferred at a point in time | Appraisal services
Disaggregation of Revenue [Line Items]
Revenue	0	0
Products and services transferred at a point in time | Hardware and other
Disaggregation of Revenue [Line Items]
Revenue	4,189	4,140
Products and services transferred over time
Disaggregation of Revenue [Line Items]
Revenue	225,967	197,971
Products and services transferred over time | Software licenses and royalties
Disaggregation of Revenue [Line Items]
Revenue	4,883	3,713
Products and services transferred over time | Subscriptions
Disaggregation of Revenue [Line Items]
Revenue	67,275	49,028
Products and services transferred over time | Software services
Disaggregation of Revenue [Line Items]
Revenue	48,443	45,939
Products and services transferred over time | Maintenance
Disaggregation of Revenue [Line Items]
Revenue	100,152	93,897
Products and services transferred over time | Appraisal services
Disaggregation of Revenue [Line Items]
Revenue	5,214	5,394
Products and services transferred over time | Hardware and other
Disaggregation of Revenue [Line Items]
Revenue	$ 0	$ 0
Minimum
Disaggregation of Revenue [Line Items]
Contract term	1 year
Typical contract term	3 years
Minimum | Appraisal services
Disaggregation of Revenue [Line Items]
Contract term	1 year
Maximum
Disaggregation of Revenue [Line Items]
Contract term	10 years
Typical contract term	5 years
Maximum | Appraisal services
Disaggregation of Revenue [Line Items]
Contract term	3 years

Deferred Revenue and Performa_3

Deferred Revenue and Performance Obligations - Deferred Revenue (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)
Disaggregation of Revenue [Line Items]
Deferred revenue	$ 350,936
Contract With Customer Liability [Roll Forward]
Balance, beginning of period December 31, 2018	350,936
Deferral of revenue	167,975
Recognition of deferred revenue	(198,569)
Balance, end of period	320,342
Operating segments | Enterprise Software
Disaggregation of Revenue [Line Items]
Deferred revenue	298,184
Contract With Customer Liability [Roll Forward]
Balance, beginning of period December 31, 2018	327,521
Balance, end of period	298,184
Operating segments | Appraisal and Tax
Disaggregation of Revenue [Line Items]
Deferred revenue	21,589
Contract With Customer Liability [Roll Forward]
Balance, beginning of period December 31, 2018	20,018
Balance, end of period	21,589
Corporate
Disaggregation of Revenue [Line Items]
Deferred revenue	569
Contract With Customer Liability [Roll Forward]
Balance, beginning of period December 31, 2018	3,397
Balance, end of period	$ 569

Deferred Revenue and Performa_4

Deferred Revenue and Performance Obligations - Additional Information (Details) $ in Billions	Mar. 31, 2019USD ($)
Revenue from Contract with Customer [Abstract]
Remaining performance obligations	$ 1.3
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, percentage	50.00%
Expected timing of satisfaction period	12 months

Commitments and Contingencies (

Commitments and Contingencies (Detail)	Mar. 31, 2019LegalMatter
Commitments and Contingencies Disclosure [Abstract]
Number of material legal proceedings pending	0