Earnings Per Common Share - Calculations of Basic and Diluted Earnings per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Earnings Per Share [Abstract]
Net income available to common shareholders	$ 26,560	$ 23,577
Less: Dividends paid on unvested common shares	(102)	(48)
Add: Undistributed loss allocated to unvested common shares	(34)	(21)
Net earnings allocated to common shareholders	$ 26,424	$ 23,508
Weighted-average common shares outstanding (in shares)	27,891,760	28,006,165
Effect of potentially dilutive common shares (in shares)	130,119	122,966
Total weighted-average diluted common shares outstanding (in shares)	28,021,879	28,129,131
Earnings per common share:
Basic (in usd per share)	$ 0.95	$ 0.84
Diluted (in usd per share)	$ 0.94	$ 0.84
Anti-dilutive common shares excluded from calculation:
Restricted common shares (in shares)	155,018	0