Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Numerator:
Net Income	$ 33,682	$ 27,470	$ 133,705	$ 116,852
Basic
Weighted average common shares outstanding (in shares)	49,838,000	51,457,000	50,054,000	51,827,000
Diluted
Stock options (in shares)	148,000	434,000	206,000	523,000
Restricted stock units and awards (in shares)	96,000	118,000	95,000	141,000
Performance share units (in shares)	277,000	205,000	277,000	205,000
Contingent shares (in shares)	12,000	24,000	12,000	24,000
Diluted weighted average common shares outstanding (in shares)	50,371,000	52,238,000	50,644,000	52,720,000
Basic earnings per share (in dollars per share)	$ 0.68	$ 0.53	$ 2.67	$ 2.25
Diluted earnings per share (in dollars per share)	$ 0.67	$ 0.53	$ 2.64	$ 2.22
Share-based payment arrangement
Dilutive Securities Included And Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Share based awards excluded from the calculation of diluted earnings per share (in shares)	0	0	60,000	72,000
PSU
Dilutive Securities Included And Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Share based awards excluded from the calculation of diluted earnings per share (in shares)	187,000	237,000	187,000	237,000