Commitments, Contingencies and Guarantees - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended			96 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2023
Loss Contingencies [Line Items]
Rent expense	$ 41,500	$ 40,200	$ 49,400
Total	189,186			$ 189,186
Business acquisition cash remain to be paid if targets met	4,200			4,200
Self insurance accrued in health care claims	3,700	2,400		3,700
Losses incurred on FDIC insured cash accounts	0	0
Russia's Invasion Of Ukraine | Other Expenses
Loss Contingencies [Line Items]
Loss contingency accrual, provision	9,000	11,400
Vacant Space
Loss Contingencies [Line Items]
Total	$ 0	$ 0	$ 0	0
Business Acquisition With Issuance Of Stock
Loss Contingencies [Line Items]
Business acquisition, equity interest issued (in shares)	1,200,000	0
Payments to acquire businesses	$ 8,000
Guarantees
Loss Contingencies [Line Items]
Guarantee liability	1,400	$ 1,600		1,400
Contingent Consideration Issuable
Loss Contingencies [Line Items]
Payments to acquire businesses				$ 53,400
Class A Common Stock
Loss Contingencies [Line Items]
Consideration transferred of Class A common stock (in shares)				3,300,000
Estimated fair value of contingent consideration	13,500			$ 13,500
Business acquisition, contingent cash consideration	$ 43,100			$ 43,100
Class A Common Stock | Business Acquisition With Issuance Of Stock
Loss Contingencies [Line Items]
Business acquisition, equity interest issued (in shares)	900,000			1,400,000
LPUs
Loss Contingencies [Line Items]
Consideration transferred of Class A common stock (in shares)				100,000
Estimated fair value of contingent consideration	$ 200			$ 200
Restricted Stock Units (RSUs)
Loss Contingencies [Line Items]
Consideration transferred of Class A common stock (in shares)				200,000
Estimated fair value of contingent consideration	1,200			$ 1,200
Business acquisition, contingent cash consideration	15,100	14,500		$ 15,100
Increase (decrease) to contingent liability	$ 600	$ 2,600
Restricted Stock Units (RSUs) | Business Acquisition With Issuance Of Stock
Loss Contingencies [Line Items]
Business acquisition, equity interest issued (in shares)				200,000