Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Earnings Per Share [Abstract]
Net income	$ 35,542	$ 36,450
Preferred stock dividends	(10)	(10)
Net income available to common equity	35,532	36,440
Dividends and undistributed earnings allocated to participating securities	(4)	(14)
Net income available to common shareholders	$ 35,528	$ 36,426
Basic weighted-average shares outstanding (shares)	39,291	39,094
Stock-based compensation awards (shares)	232	326
Diluted weighted-average shares outstanding (shares)	39,523	39,420
Antidilutive stock options (shares)	0	0
Earnings per share:
Basic (in dollars per share)	$ 0.90	$ 0.93
Diluted (in dollars per share)	$ 0.90	$ 0.92