Shareholders' Equity - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021	May 06, 2021	Mar. 03, 2021	Feb. 21, 2017
Class of Stock [Line Items]
Common stock, shares authorized (in shares)	150,000,000		150,000,000
Common stock, shares issued (in shares)	93,414,080		93,414,080		92,316,107
Common stock, shares outstanding (in shares)	87,161,499		87,161,499		86,467,242
Preference shares issued (in shares)	18,600,000		18,600,000
Preference shares outstanding (in shares)	18,600,000		18,600,000
Undesignated shares (in shares)	37,985,920		37,985,920
Preference shares outstanding, held by non-affiliates (in shares)	4,786,884		4,786,884
Stock repurchase program, remaining authorized repurchase amount					$ 74,245
Treasury shares repurchased (in shares)	0	0	0	0
Shares repurchased for tax withholding (in shares)		21,509	403,716	821,057
Shares repurchased for tax withholding, price per share (in dollars per share)		$ 3.43	$ 2.50	$ 2.96
Preferred Stock
Class of Stock [Line Items]
Stock repurchased, authorized amount (up to)						$ 50,000	$ 100,000
Stock repurchase program, remaining authorized repurchase amount	$ 3,861		$ 3,861
Common shares
Class of Stock [Line Items]
Stock repurchased, authorized amount (up to)								$ 100,000
Stock repurchase program, remaining authorized repurchase amount	$ 74,245		$ 74,245