Net Income Per Share (Details) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Earnings Per Share [Abstract]
Net income	$ 124,080	$ 138,237	$ 151,099
Less distributed and undistributed earnings allocated to participating securities	210	782	1,759
Net income allocated to common shares	$ 123,870	$ 137,455	$ 149,340
Weighted average common shares outstanding	38,431	38,503	40,186
Incremental shares from assumed time-vested and performance-based RSU awards and conversions of common stock options	471	317	166
Adjusted weighted average common shares outstanding	38,902	38,820	40,352
Potentially dilutive securities not included in weighted average share calculation due to anti-dilutive effect	0	133	0