Goodwill and Other Intangible Assets - Summary of Company's Goodwill (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2023 USD ($)
Goodwill [Roll Forward]
Beginning Balance	$ 405,637
Currency translation adjustments	(58)
Ending Balance	405,579
Insurance
Goodwill [Roll Forward]
Beginning Balance	49,929
Currency translation adjustments	11
Ending Balance	49,940
Healthcare
Goodwill [Roll Forward]
Beginning Balance	21,875
Currency translation adjustments	(2)
Ending Balance	21,873
Emerging Business
Goodwill [Roll Forward]
Beginning Balance	47,101
Currency translation adjustments	(66)
Ending Balance	47,035
Analytics
Goodwill [Roll Forward]
Beginning Balance	286,732
Currency translation adjustments	(1)
Ending Balance	$ 286,731