Earnings per Share Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net income	$ 563,725	$ 465,365	$ 490,662
Basic Weighted Average Shares Outstanding	27,777	27,769	27,876
Stock option awards	719	639	265
Deferred Compensation Awards	104	308	322
Diluted Weighted Average Shares Outstanding	28,600	28,716	28,463
Earnings Per Share, Basic	$ 20.29	$ 16.76	$ 17.60
Earnings Per Share, Diluted	$ 19.71	$ 16.21	$ 17.24
Anti-dilutive stock equivalent awards not included in the calculation of diluted loss per share	0	0	846