Acquisitions - Narrative (Details) - USD ($) $ in Thousands			3 Months Ended	12 Months Ended
	Jan. 01, 2022	Oct. 01, 2021	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Contingent consideration balance				$ 128,400	$ 162,564
Goodwill				348,836	338,406	$ 290,366	$ 290,366
Contingent consideration				$ 1,200	$ 150,164	$ 0
AGI
Business Acquisition [Line Items]
Asset acquisition, annual payment term				7 years
Contingent consideration			$ 33,000
Asset acquisition, contingent consideration, liability				$ 108,500
Stone Harbor Investment Partners, LLC
Business Acquisition [Line Items]
Payments to acquire businesses, gross	$ 28,900
Contingent consideration balance	1,200
Purchase price	30,100
Goodwill	10,259
Definite-lived intangible assets acquired	10,800
Business acquisition, goodwill, expected tax deductible amount	$ 21,100
Goodwill and other intangible assets, amount expected to be tax deductible	15 years
Westchester
Business Acquisition [Line Items]
Payments to acquire businesses, gross		$ 156,800
Contingent consideration balance				$ 19,900
Purchase price		169,300
Goodwill		23,000
Business acquisition, goodwill, expected tax deductible amount		$ 155,600
Goodwill and other intangible assets, amount expected to be tax deductible		15 years
Intangible assets		$ 144,400