Earnings Per Common Share - Summary of Basic and Diluted Earnings per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Earnings Per Share [Abstract]
Net (loss) income	$ 25,434	$ 24,624	$ 73,042	$ 85,321
Dividends on preferred shares	(10,455)	(10,454)	(20,909)	(20,909)
Effect of participating securities‒share-based compensation awards	(106)	(100)	(217)	(202)
Net income attributable to common shareholders	14,873	14,070	51,916	64,210
Interest on Exchangeable Notes, net of income taxes	0	0		12,682
Diluted net income attributable to common shareholders	$ 14,873	$ 14,070	$ 51,916	$ 76,892
Weighted average basic shares outstanding	86,849	87,269	86,769	88,046
Dilutive securities:
Shares issuable pursuant to exchange of the Exchangeable Notes	0	0	0	24,328
Diluted weighted average shares outstanding	86,849	87,269	86,769	112,374
Basic earnings per share	$ 0.17	$ 0.16	$ 0.6	$ 0.73
Diluted earnings per share	$ 0.17	$ 0.16	$ 0.6	$ 0.68