Leases - Additional Information (Detail) $ in Thousands		3 Months Ended		9 Months Ended
	Jun. 07, 2022 ft²	Sep. 30, 2022 USD ($) ft²	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) ft²	Sep. 30, 2021 USD ($)
Lessee Lease Description [Line Items]
Payment of operating lease termination fee				$ 400
Remaining term description of leases				The Company’s existing leases have remaining terms of less than one year up to 28 years.
Weighted average remaining lease term		9 years 1 month 6 days	9 years 8 months 12 days	9 years 1 month 6 days	9 years 8 months 12 days
Weighted average discount rate		6.30%	6.30%	6.30%	6.30%
Lease cost		$ 3,199	$ 2,757	$ 9,170	$ 8,296
Santa Monica
Lessee Lease Description [Line Items]
Area under operating leases for corporate headquarters | ft²	38,000	16,000		16,000
Operating lease extended expire date	Jan. 31, 2034
Operating lease amended date	Jun. 07, 2022
Los Angeles
Lessee Lease Description [Line Items]
Area under operating leases for corporate headquarters | ft²		41,000		41,000
Lease termination date				Sep. 30, 2022
Direct Operating Expenses
Lessee Lease Description [Line Items]
Lease cost		$ 1,500	1,400	$ 4,500	4,300
Selling, General and Administrative Expenses
Lessee Lease Description [Line Items]
Lease cost		1,500	1,200	4,200	3,500
Corporate Expenses
Lessee Lease Description [Line Items]
Lease cost		$ 200	$ 200	$ 500	$ 500
Maximum
Lessee Lease Description [Line Items]
Remaining term of leases				28 years