Share-Based Compensation - Schedule of Grant Date Fair Values of Awards Using Monte Carlo Simulation Valuation Model (Detail)		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility	[1]	60.00%
Expected volatility, minimum	[1]		22.00%	19.50%
Expected volatility, maximum	[1]		65.00%	21.50%
Risk-free rate, minimum		0.20%	0.30%	1.80%
Risk-free rate, maximum		0.30%	1.50%	2.40%
Expected term		3 years		3 years
Dividend yield	[2]	0.00%
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term			1 year
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term			4 years

[1] The weighted average expected volatility for the years ended December 31, 2021, 2020 and 2019 was 60.0%, 46.2% and 20.5%, respectively.

[2] Dividends are assumed to be reinvested in shares of our common stock and dividends will not be paid unless shares vest.