Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Basic EPS [Abstract]
Weighted average common shares outstanding (in shares)	42,845	43,474	42,992	43,517
Net income available to common stockholders	$ 37,775	$ 40,296	$ 76,901	$ 80,142
Basic EPS (in dollars per share)	$ 0.88	$ 0.93	$ 1.79	$ 1.84
Diluted EPS [Abstract]
Weighted average common shares outstanding (in shares)	42,845	43,474	42,992	43,517
Dilutive effect of common stock options and restricted stock (in shares)	248	319	246	323
Weighted average common shares and common share equivalents (in shares)	43,093	43,793	43,238	43,840
Net income available to common stockholders	$ 37,775	$ 40,296	$ 76,901	$ 80,142
Diluted EPS (in dollars per share)	$ 0.88	$ 0.92	$ 1.78	$ 1.83