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Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Basic and Diluted Earnings:
Net income	$ 24,996	$ 34,091
Basic weighted-average shares outstanding (in shares)	32,357	32,829
Add: Stock awards (in shares)	180	108
Diluted weighted-average shares outstanding (in shares)	32,537	32,937
Basic earnings per share:
Earnings per common share - basic (in dollars per share)	$ 0.77	$ 1.04
Diluted earnings per share:
Earnings per common share - diluted (in dollars per share)	$ 0.77	$ 1.04
Antidilutive securities excluded from calculating earnings
Number of antidilutive options (in shares)	0	679

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