Acquisitions - Narrative (Details) - USD ($) $ in Thousands				3 Months Ended	12 Months Ended
	Jan. 01, 2022	Oct. 01, 2021	Feb. 01, 2021	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2022
Business Acquisition [Line Items]
Contingent consideration on business acquisition					$ 162,564	$ 133,628
Goodwill					338,406	348,836
AGI
Business Acquisition [Line Items]
Annual payment term			7 years
Contingent consideration paid for an asset acquisition				$ 33,000
Contingent consideration on asset acquisition						117,000
Stone Harbor Investment Partners, LLC
Business Acquisition [Line Items]
Payments to acquire businesses, gross	$ 28,200
Working capital adjustments					$ 700
Contingent consideration on business acquisition	1,200
Purchase price	30,100
Goodwill	10,259
Definite-lived intangible assets acquired	10,800
Expected tax deductible amount of goodwill acquired	$ 21,100
Period for expected tax deductible amount of goodwill	15 years
Westchester
Business Acquisition [Line Items]
Payments to acquire businesses, gross		$ 156,800
Contingent consideration on business acquisition						$ 15,400
Purchase price		169,300
Goodwill		23,000
Expected tax deductible amount of goodwill acquired		$ 155,600
Period for expected tax deductible amount of goodwill		15 years
Intangible assets		$ 144,400