Capital Stock - Schedule of Common Stock Activity (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Common Stock
Common Stock Activity [Roll Forward]
Beginning balance	$ 343,842	$ 329,953
Stock compensation expense	(3,812)	(2,629)
Ending balance	344,328	330,077
Treasury Cost
Common Stock Activity [Roll Forward]
Beginning balance	(483,248)	(396,604)
Stock compensation expense	0	0
Ending balance	(540,194)	(412,212)
Restricted and performance stock awards \| Common Stock
Common Stock Activity [Roll Forward]
Restricted and performance stock awards	3,338	2,642
Restricted and performance stock awards \| Treasury Cost
Common Stock Activity [Roll Forward]
Restricted and performance stock awards	3,338	2,642
Stock options exercised \| Common Stock
Common Stock Activity [Roll Forward]
Stock compensation expense	(12)	(137)
Stock options exercised \| Treasury Cost
Common Stock Activity [Roll Forward]
Stock compensation expense	(10)	(93)
Treasury shares purchased for stock compensation programs \| Common Stock
Common Stock Activity [Roll Forward]
Treasury shares purchased for stock compensation programs	0	0
Treasury shares purchased for stock compensation programs \| Treasury Cost
Common Stock Activity [Roll Forward]
Treasury shares purchased for stock compensation programs	(9,847)	(8,347)
Share repurchase program \| Common Stock
Common Stock Activity [Roll Forward]
Stock compensation expense	0	0
Share repurchase program \| Treasury Cost
Common Stock Activity [Roll Forward]
Stock compensation expense	$ (50,447)	$ (9,996)

Common Stock Activity [Roll Forward]

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