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Goodwill and Intangible Assets - Schedule of changes in goodwill by reporting unit (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Goodwill [Roll Forward]
Opening balance	$ 1,731,027	$ 1,695,688
Goodwill relating to acquisitions consummated during the period	0	44,216
Impact of measurement period adjustments	1,817	1,205
Classified as held for sale	(1,625)	0
Effect of exchange rate fluctuations	(47,023)	(10,082)
Closing balance	1,684,196	1,731,027
Financial Services
Goodwill [Roll Forward]
Opening balance	421,257	420,172
Goodwill relating to acquisitions consummated during the period		4,167
Impact of measurement period adjustments	171	35
Classified as held for sale	0
Effect of exchange rate fluctuations	(12,692)	(3,117)
Closing balance	408,736	421,257
Consumer and Healthcare
Goodwill [Roll Forward]
Opening balance	611,120	607,574
Goodwill relating to acquisitions consummated during the period		7,032
Impact of measurement period adjustments	289	309
Classified as held for sale	(1,625)
Effect of exchange rate fluctuations	(16,877)	(3,795)
Closing balance	592,907	611,120
High Tech and Manufacturing
Goodwill [Roll Forward]
Opening balance	698,650	667,942
Goodwill relating to acquisitions consummated during the period		33,017
Impact of measurement period adjustments	1,357	861
Classified as held for sale	0
Effect of exchange rate fluctuations	(17,454)	(3,170)
Closing balance	$ 682,553	$ 698,650

X

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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