Other Intangible Assets, net and Goodwill (Tables)

9 Months Ended

Sep. 30, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of identifiable intangible assets

The following tables summarize the gross carrying amounts and accumulated amortization of the Company’s identifiable intangible assets by major class:

	September 30, 2020						December 31, 2019
	Gross		Accumulated Amortization		Net		Gross		Accumulated Amortization		Net
Finite-lived intangible assets
Customer relationships	$	651,647	$	(194,003)	$	457,644	$	280,493	$	(180,571)	$	99,922
Databases and content	1,829,563		(431,393)		1,398,170		1,755,323		(342,385)		1,412,938
Computer software	351,262		(181,166)		170,096		285,701		(135,919)		149,782
Trade names	6,770		(830)		5,940		1,570		—		1,570
Backlog	28,090		(4,103)		23,987		—		—		—
Finite-lived intangible assets	2,867,332		(811,495)		2,055,837		2,323,087		(658,875)		1,664,212
Indefinite-lived intangible assets
Trade names	161,390		—		161,390		164,428		—		164,428
Total intangible assets	$	3,028,722	$	(811,495)	$	2,217,227	$	2,487,515	$	(658,875)	$	1,828,640

Schedule of Goodwill

The following table summarizes changes in the carrying amount of goodwill for the nine months ended September 30, 2020:    

Balance as of December 31, 2019	$	1,328,045
Acquisitions	497,263
Transferred to Assets held for sale	(9,129)
Changes due to foreign currency fluctuations	2,175
Balance as of September 30, 2020	$	1,818,354