Earnings Per Share - Computations of Basic and Diluted Earnings Per Share (Parenthetical) (Detail) - shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019		Aug. 21, 2020
Earnings Per Share Disclosure [Line Items]
Weighted average shares of participating unvested restricted stock	1,704,000	815,000	721,000
Interest rate	4.50%	4.50%
4.50 % Convertible Senior Notes
Earnings Per Share Disclosure [Line Items]
Interest rate	4.50%				4.50%
Common shares issued	32,051,000
Restricted Stock Units (RSUs)
Earnings Per Share Disclosure [Line Items]
Common equivalent shares for restricted stock units	4,000	682,000	300,000	[1]

[1] For the years ended December 31, 2020 and 2021, approximately 682 and 4 common equivalent shares for restricted stock units were excluded because they were anti-dilutive. (3) For the years ended December 31, 2020 and 2021, diluted loss per share excludes the conversion of the 4.500% Convertible Senior Notes into 32,051 shares of common stock, as well as outstanding warrants, as they would be anti-dilutive. See further discussion below.