Compensation - Activity Associated with Restricted Stock Units (Detail) - Restricted Stock Units - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
Beginning balance (in shares)	11,034,000
Granted (in shares)	6,231,000
Delivered (in shares)	(4,380,000)
Forfeited (in shares)	(972,000)
Ending balance (in shares)	11,913,000	11,034,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Beginning balance (in dollars per share)	$ 3.87
Granted (in dollars per share)	4,390
Delivered (in dollars per share)	3,860
Forfeited (in dollars per share)	3,860
Ending balance (in dollars per share)	$ 4,150	$ 3.87
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Fair Value Outstanding [Roll Forward]
Beginning balance	$ 42,756
Granted	27,372
Delivered	(16,901)
Forfeited	(3,750)
Ending balance	$ 49,477	$ 42,756
Weighted- Average Remaining Contractual Term (Years)	2 years 7 months 9 days	2 years 3 months 7 days