Net Income per Share (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Earnings Per Share [Abstract]
Net income	$ 37,669	$ 27,296	$ 141,152	$ 114,372
Less distributed and undistributed earnings allocated to participating securities	0	39	27	219
Net Income (Loss) Available to Common Stockholders, Basic	$ 37,669	$ 27,257	$ 141,125	$ 114,153
Weighted average common shares outstanding basic (in shares)	38,017	38,524	38,177	38,445
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	529	357	431	404
Weighted Average Number of Shares Outstanding, Diluted	38,546	38,881	38,608	38,849
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	15	0	13	0
Current borrowing capacity	$ 650,000		$ 650,000