Segment and Related Information - Schedule of Segment Revenues and Operations (Detail) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2017	Mar. 31, 2016
Segment Reporting Information [Line Items]
Software licenses and royalties	$ 18,223	$ 16,850
Subscriptions	40,102	34,089
Software services	45,018	42,430
Maintenance	86,859	76,032
Appraisal services	6,612	6,558
Hardware and other	2,728	3,334
Total revenues	199,542	179,293
Segment operating income	45,017	36,862
Operating segments \| Enterprise Software
Segment Reporting Information [Line Items]
Software licenses and royalties	16,574	15,654
Subscriptions	38,313	31,985
Software services	40,668	38,605
Maintenance	82,166	71,400
Hardware and other	2,728	3,036
Intercompany	2,163	1,160
Total revenues	182,612	161,840
Segment operating income	52,051	40,669
Operating segments \| Appraisal and Tax
Segment Reporting Information [Line Items]
Software licenses and royalties	1,649	1,196
Subscriptions	1,789	2,104
Software services	4,350	3,825
Maintenance	4,693	4,632
Appraisal services	6,612	6,558
Hardware and other	0	15
Total revenues	19,093	18,330
Segment operating income	4,214	4,830
Corporate
Segment Reporting Information [Line Items]
Hardware and other	0	283
Intercompany	(2,163)	(1,160)
Total revenues	(2,163)	(877)
Segment operating income	$ (11,248)	$ (8,637)

Appraisal services revenue.

No definition available.

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- Definition

Revenue from resale of third party hardware and other revenues.

+ References

No definition available.

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- Definition

Intercompany revenue.

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No definition available.

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- Definition

Segment operating income before non cash amortization of intangible assets associated with acquisitions, interest expense and income taxes.

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No definition available.

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- Definition

Subscription revenue comprised of fees from application service provider arrangements and other hosted service offerings, software subscriptions, electronic filing solutions, and disaster recovery services. These services also include professional services and maintenance support.

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No definition available.

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- Definition

Revenue earned during the period relating to consideration received from another party for the right to use, but not own, certain of the entity's intangible assets. Licensing arrangements include, but are not limited to, rights to use a patent, copyright, technology, manufacturing process, software or trademark. Licensing fees are generally, but not always, fixed as to amount and not dependent upon the revenue generated by the licensing party. An entity may receive licensing fees for licenses that also generate royalty payments to the entity.

+ References

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- Definition

Revenue derived from maintenance services provided under contracts or arrangements with clients. For example, it may include the maintenance of software, plant and equipment, and facilities.

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- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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- Definition

Revenue from providing technology services. The services may include training, installation, engineering or consulting. Consulting services often include implementation support, software design or development, or the customization or modification of the licensed software.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1(d))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 985
-SubTopic 605
-Section 25
-Paragraph 76
-URI http://asc.fasb.org/extlink&oid=68047459&loc=d3e132428-111767

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