Stockholder's Equity - Schedule of Shares Repurchased (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Nov. 03, 2020	Nov. 06, 2019
Equity [Line Items]
Shares repurchased during the period	$ 1,609,000	$ 28,921,000	$ 66,186,000
November 3, 2020
Equity [Line Items]
Shares repurchased (in shares)	116,886	45,705
Shares repurchased during the period	$ 2,203,000
Shares repurchased during period (in dollars per share)	$ 13.55
November 3, 2020 | Maximum
Equity [Line Items]
Amount of stock repurchase plan authorized				$ 20,000,000
November 6, 2019
Equity [Line Items]
Shares repurchased (in shares)	0	1,565,078
Shares repurchased during the period		$ 28,327,000
Shares repurchased during period (in dollars per share)		$ 18.10
November 6, 2019 | Maximum
Equity [Line Items]
Amount of stock repurchase plan authorized					$ 40,000,000