Earnings per Share Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net income	$ 490,662	$ 396,868	$ 239,874
Basic Weighted Average Shares Outstanding	27,876	29,092	28,610
Stock option awards	265	468	298
Deferred Compensation Awards	322	320	244
Diluted Weighted Average Shares Outstanding	28,463	29,880	29,152
Earnings Per Share, Basic	$ 17.60	$ 13.64	$ 8.38
Earnings Per Share, Diluted	$ 17.24	$ 13.28	$ 8.23
Anti-dilutive stock equivalent awards not included in the calculation of diluted loss per share	846	11	379