Earnings per Share Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Earnings Per Share [Abstract]
Net Income (Loss) Attributable to Parent	$ 103,066	$ 91,839
Dilutive Securities, Effect on Basic Earnings Per Share [Abstract]
Weighted Average Number of Shares Outstanding, Basic	27,602	28,424
Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract]
Incremental Common Shares Attributable to Stock Options	378	336
Deferred Compensation Awards	325	312
Diluted Weighted Average Number of Shares Outstanding	28,305	29,072
Earnings Per Share, Basic	$ 3.73	$ 3.23
Earnings Per Share, Diluted	$ 3.64	$ 3.16
Anti-dilutive stock equivalent awards not included in the calculation of diluted loss per share	266	434