Earnings per Share Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Earnings Per Share [Abstract]
Net Income (Loss) Attributable to Parent	$ 121,243	$ 146,746	$ 232,480	$ 284,807
Dilutive Securities, Effect on Basic Earnings Per Share [Abstract]
Weighted Average Number of Shares Outstanding, Basic	26,836	27,878	27,074	27,965
Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract]
Dilutive Securities	570	790	599	812
Diluted Weighted Average Number of Shares Outstanding	27,406	28,668	27,673	28,777
Earnings Per Share, Basic	$ 4.52	$ 5.26	$ 8.59	$ 10.18
Earnings Per Share, Diluted	$ 4.42	$ 5.12	$ 8.40	$ 9.90
Anti-dilutive stock equivalent awards not included in the calculation of diluted loss per share	0	0	0	0