Net Income per Share (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Earnings Per Share [Abstract]
Net income	$ 33,599	$ 25,154	$ 103,483	$ 87,076
Less distributed and undistributed earnings allocated to participating securities	1	37	31	193
Net Income (Loss) Available to Common Stockholders, Basic	$ 33,598	$ 25,117	$ 103,452	$ 86,883
Weighted average common shares outstanding basic (in shares)	38,229	38,591	38,259	38,410
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	359	232	382	427
Weighted Average Number of Shares Outstanding, Diluted	38,588	38,823	38,641	38,837
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	0	0	13	0
Current borrowing capacity	$ 650,000		$ 650,000		$ 500,000