Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2019

Accounting Policies [Abstract]

Schedule of Property and Equipment

Property and equipment consist of the following:

	December 31,
	2019		2018
	(In thousands)
Buildings	$	76,152	$	76,152
Computer equipment	205,063		189,333
Software	451,927		433,033
Equipment and furniture	85,356		78,401
Leasehold improvements	199,813		182,848
	1,018,311		959,767
Less: accumulated depreciation and amortization	(806,099)		(741,587)
Assets under construction	2,913		8,447
Land	16,769		16,769
Total	$	231,894	$	243,396

Schedule of Changes in Goodwill

The following table presents the change in goodwill during 2019 and 2018 (in thousands):

	Balance at January 1, 2019		Additions		Other			Balance at December 31, 2019		Balance at January 1, 2018		Additions			Other		Balance at December 31, 2018
Goodwill	$	1,802,670	$	—	$	(4,262)	(1)	$	1,798,408	$	1,614,494	$	188,176	(2)	$	—	$	1,802,670

(1)Amounts relate to adjustments to the purchase price allocation associated with 2018 business combinations. See Note 4 for more information regarding the Company's acquisitions.

(2)Amounts relate to purchase price allocation associated with 2018 business combinations. See Note 4 for more information regarding the Company's acquisitions.

Schedule of Intangible Assets

Intangible assets consist of the following (in thousands):

	December 31, 2019
	Gross Carrying Amount		Accumulated Amortization		Weighted-Average Life (Years)
Product related intangible assets	$	734,973	$	633,633	6.04
Other	187,173		180,035		6.23
Total	$	922,146	$	813,668	6.08

	December 31, 2018
	Gross Carrying Amount		Accumulated Amortization		Weighted-Average Life (Years)
Product related intangible assets	$	746,152	$	601,993	6.06
Other	227,922		204,894		6.40
Total	$	974,074	$	806,887	6.14

Schedule of Estimated Future Annual Amortization Expense of Intangible Assets

Estimated future amortization expense of intangible assets with finite lives as of December 31, 2019 is as follows (in thousands): 

Year ending December 31,
2020	$	35,084
2021	22,793
2022	20,594
2023	16,327
2024	5,292
Thereafter	8,388
Total	$	108,478