Commitments, Contingencies and Guarantees - Additional Information (Detail) - USD ($)	1 Months Ended	12 Months Ended			48 Months Ended
	Sep. 30, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2019
Loss Contingencies [Line Items]
Sublease payments to be received		$ 100,000			$ 100,000
Rent expense		$ 56,000,000.0	$ 44,300,000	$ 46,500,000
Liability for future lease payments, net of anticipated sublease rental income			297,595,000
Consideration transferred of Class A common stock		0		400,000
Business acquisition, contingent cash consideration			$ 18,000,000.0
Limited partnership units			0
Business acquisition cash remain to be paid if targets met		$ 24,100,000			24,100,000
Aggregate amount paid for misrepresentation	$ 25,000,000.0
Self insurance accrued in health care claims		1,800,000	$ 6,100,000		1,800,000
Contingent liability
Indemnification [Member]
Loss Contingencies [Line Items]
Contingent liability		0			0
Guarantees [Member]
Loss Contingencies [Line Items]
Guarantee liability		2,300,000	$ 1,000,000.0		2,300,000
Contingent liability		0			$ 0
Class A Common Stock [Member]
Loss Contingencies [Line Items]
Consideration transferred of Class A common stock					2,200,000
Estimated fair value of contingent consideration		9,200,000		$ 3,500,000	$ 9,200,000
Business acquisition, contingent cash consideration		$ 34,300,000		3,900,000	$ 34,300,000
Business acquisition, equity interest issued, number of shares		1,900,000
Class A Common Stock [Member] | Contingent Consideration Issuable [Member]
Loss Contingencies [Line Items]
Business acquisition, equity interest issued, number of shares		300,000
Cash		$ 14,600,000
LPUs [Member]
Loss Contingencies [Line Items]
Consideration transferred of Class A common stock					100,000
Estimated fair value of contingent consideration		200,000			$ 200,000
Restricted Stock Units (RSUs) [Member]
Loss Contingencies [Line Items]
Consideration transferred of Class A common stock			200,000		200,000
Estimated fair value of contingent consideration		1,200,000	$ 1,200,000		$ 1,200,000
Business acquisition, contingent cash consideration		21,400,000	16,800,000		21,400,000
Increase decrease to contingent liability		$ 4,600,000
Business acquisition, equity interest issued, number of shares		200,000
Vacant Space [Member]
Loss Contingencies [Line Items]
Liability for future lease payments, net of anticipated sublease rental income		$ 0	$ 0	$ 0	$ 0