Earnings Per Share - Reconciliation of Numerators and Denominators (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Basic EPS:
Net income	$ 95,644	$ 81,477	$ 92,046
Less: income allocated to participating securities	(483)	(398)	(450)
Basic EPS per common share	$ 95,161	$ 81,079	$ 91,596
Basic (in shares)	29,876,151	28,839,866	29,547,851
Basic (in usd per share)	$ 3.19	$ 2.81	$ 3.10
Diluted EPS:
Net income	$ 95,644	$ 81,477	$ 92,046
Effect of Dilutive Securities	0	0	0
Diluted EPS per common share	$ 95,644	$ 81,477	$ 92,046
Basic (in shares)	29,876,151	28,839,866	29,547,851
Effect of Dilutive Securities (in shares)	151,634	141,701	172,648
Diluted (in shares)	30,027,785	28,981,567	29,720,499
Diluted (in usd per share)	$ 3.19	$ 2.81	$ 3.10