Capital Stock - Schedule of Common Stock Activity (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Common Stock
Common Stock Activity [Roll Forward]
Beginning balance	$ 330,077	$ 315,241	$ 329,953	$ 312,324
Stock compensation expense	(5,370)	(5,042)	(7,999)	(9,229)
Ending balance	336,175	320,556	336,175	320,556
Treasury Cost
Common Stock Activity [Roll Forward]
Beginning balance	(412,212)	(365,999)	(396,604)	(361,684)
Stock compensation expense	0	0		0
Ending balance	(442,123)	(376,556)	(442,123)	(376,556)
Restricted and performance stock awards | Common Stock
Common Stock Activity [Roll Forward]
Restricted and performance stock awards	365	348	3,007	1,783
Restricted and performance stock awards | Treasury Cost
Common Stock Activity [Roll Forward]
Restricted and performance stock awards	(365)	(348)	3,007	1,783
Stock options exercised | Common Stock
Common Stock Activity [Roll Forward]
Stock compensation expense	(158)	(47)	(295)	(212)
Stock options exercised | Treasury Cost
Common Stock Activity [Roll Forward]
Stock compensation expense	(109)	(27)	(202)	(114)
Treasury shares purchased for stock compensation programs | Common Stock
Common Stock Activity [Roll Forward]
Treasury shares purchased for stock compensation programs	0	0	0	0
Treasury shares purchased for stock compensation programs | Treasury Cost
Common Stock Activity [Roll Forward]
Treasury shares purchased for stock compensation programs	(534)	(992)	(8,880)	(6,829)
Employee stock purchase program | Common Stock
Common Stock Activity [Roll Forward]
Stock compensation expense	(935)	(574)	(935)	(574)
Employee stock purchase program | Treasury Cost
Common Stock Activity [Roll Forward]
Stock compensation expense	(147)	(60)	(147)	(60)
Share repurchase program | Common Stock
Common Stock Activity [Roll Forward]
Stock compensation expense	0	0	0	0
Share repurchase program | Treasury Cost
Common Stock Activity [Roll Forward]
Stock compensation expense	$ (29,998)	$ (10,000)	$ (39,995)	$ (10,000)