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Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Other Intangible Assets and Related Accumulated Amortization

Other intangible assets and related accumulated amortization consists of the following at December 31:

	2017				2016
Gross carrying amount of acquisition intangibles:
Customer related intangibles	$	187,717			$	186,231
Acquired software	179,466				176,096
Trade names	11,435				11,065
Leases acquired	3,694				3,694
	382,312				377,086
Accumulated amortization	(145,868		)		(109,827		)
Total intangibles, net	$	236,444			$	267,259

Summary of Allocation of Acquisition Intangible Assets

The allocation of acquisition intangible assets is summarized in the following table:

	December 31, 2017											December 31, 2016
	Gross Carrying Amount				Weighted Average Amortization Period			Accumulated Amortization				Gross Carrying Amount				Weighted Average Amortization Period			Accumulated Amortization
Non-amortizable intangibles:
Goodwill	$	657,987			—			$	—			$	650,237			—			$	—
Amortizable intangibles:
Customer related intangibles	187,717				15 years			64,375				186,231				15 years			51,491
Acquired software	179,466				7 years			76,800				176,096				7 years			55,115
Trade names	11,435				11 years			3,768				11,065				12 years			2,740
Leases acquired	3,694				10 years			925				3,694				9 years			481

Summary of Changes in Carrying Amount of Goodwill

The changes in the carrying amount of goodwill for the two years ended December 31, 2017 are as follows:

	Enterprise Software				Appraisal  and Tax				Total
Balance as of 12/31/2015	$	647,109			$	6,557			$	653,666
Goodwill acquired with acquisitions	3,943				—				3,943
Purchase price adjustments related to purchase of NWS	(7,372		)		—				(7,372		)
Balance as of 12/31/2016	643,680				6,557				650,237
Goodwill acquired with acquisitions	7,750				—				7,750
Balance as of 12/31/2017	$	651,430			$	6,557			$	657,987

Summary of Estimated Annual Amortization Expense

Estimated annual amortization expense related to acquisition intangibles, including acquired software, for which the amortization expense is recorded as cost of revenues, is as follows:

2018	$	35,278
2019	33,920
2020	32,495
2021	32,136
2022	28,665

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- Definition

Tabular disclosure of the characteristics, including initial carrying value, residual amount, weighted average useful life, of finite-lived intangible assets acquired during the period by major class. A major class is composed of intangible assets that can be grouped together because they are similar, either by nature or by their use in the operations of the company.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

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- Definition

Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
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-Section 50
-Paragraph 1
-Subparagraph (a)
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- Definition

Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
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-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267

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Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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