Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Basic EPS:
Net income	$ 28,194	$ 18,180
Less: income allocated to participating securities	(178)	(81)
Basic EPS per common share	$ 28,016	$ 18,099
Basic (in shares)	28,357,809	29,230,788
Basic (in dollars per share)	$ 0.99	$ 0.62
Diluted EPS:
Net income	$ 28,194	$ 18,180
Effect of Dilutive Securities	0	0
Diluted EPS per common share	$ 28,194	$ 18,180
Basic (in shares)	28,357,809	29,230,788
Effect of Dilutive Securities (in shares)	180,044	168,326
Diluted (in shares)	28,537,853	29,399,114
Diluted (in dollars per share)	$ 0.99	$ 0.62