Schedule I - Dividends from Subsidiary - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Dividends Payable [Line Items]
Repurchase of treasury shares, shares	3,692,794	469,785	5,615,874
Parent Company [Member]
Dividends Payable [Line Items]
Dividends from subsidiary- return of capital, for purchase of treasury stock	$ 215,749	$ 12,406	$ 150,000
Repurchase of treasury shares, shares	3,692,794	469,785	5,615,874