Accounting Policies - Summary of Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Basic earnings per share
Net income	$ 24,859	$ 22,173	$ 48,422	$ 42,595
Weighted average common shares outstanding (in shares)	43,572,796	43,950,501	43,563,804	43,935,111
Basic earnings per share (in USD per share)	$ 0.57	$ 0.50	$ 1.11	$ 0.97
Diluted earnings per share
Net income	$ 24,859	$ 22,173	$ 48,422	$ 42,595
Effect of dilutive securities:
Weighted average common shares outstanding (in shares)	43,684,691	44,111,103	43,711,822	44,092,577
Diluted earnings per share (in USD per share)	$ 0.57	$ 0.50	$ 1.11	$ 0.97
Restricted stock
Effect of dilutive securities:
Effect of dilutive securities (in shares)	77,296	106,175	107,122	104,421
Stock options
Effect of dilutive securities:
Effect of dilutive securities (in shares)	34,599	54,427	40,896	53,045