Commitments, Contingencies and Guarantees - Additional Information (Details) - USD ($) shares in Millions	12 Months Ended			108 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2024
Loss Contingencies [Line Items]
Rent expense	$ 38,700,000	$ 41,500,000	$ 40,200,000
Total	172,607,000			$ 172,607,000
Business acquisition cash remain to be paid if targets met	7,100,000			7,100,000
Losses incurred on FDIC insured cash accounts	0	0
Self insurance accrued in health care claims	2,800,000	3,700,000		2,800,000
Contingent liability
Russia's Invasion Of Ukraine | Other Expenses
Loss Contingencies [Line Items]
Loss contingency accrual, provision	4,000,000	9,000,000
Guarantees
Loss Contingencies [Line Items]
Guarantee liability	1,300,000	$ 1,400,000		1,300,000
Contingent liability	$ 0			0
Contingent Consideration Issuable
Loss Contingencies [Line Items]
Payments to acquire businesses				$ 54,400,000
Business Acquisition With Issuance Of Stock
Loss Contingencies [Line Items]
Business acquisition, equity interest issued (in shares)	1.6	1.2
Payments to acquire businesses	$ 5,000,000	$ 8,000,000
Restricted Stock Units (RSUs)
Loss Contingencies [Line Items]
Consideration transferred of Class A common stock (in shares)				0.2
Estimated fair value of contingent consideration	1,200,000			$ 1,200,000
Business acquisition, contingent cash consideration	15,300,000	15,100,000		$ 15,300,000
Increase to contingent liability	200,000	600,000
Restricted Stock Units (RSUs) | Business Acquisition With Issuance Of Stock
Loss Contingencies [Line Items]
Business acquisition, equity interest issued (in shares)				0.2
LPUs
Loss Contingencies [Line Items]
Consideration transferred of Class A common stock (in shares)				0.1
Estimated fair value of contingent consideration	200,000			$ 200,000
Class A Common Stock
Loss Contingencies [Line Items]
Consideration transferred of Class A common stock (in shares)				4.9
Estimated fair value of contingent consideration	22,500,000			$ 22,500,000
Business acquisition, contingent cash consideration	$ 68,000,000			$ 68,000,000
Class A Common Stock | Business Acquisition With Issuance Of Stock
Loss Contingencies [Line Items]
Business acquisition, equity interest issued (in shares)	2.6			2.0
Vacant Space
Loss Contingencies [Line Items]
Total	$ 0	$ 0	$ 0	$ 0