Capital Stock - Schedule of Common Stock Activity (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Common Stock
Common Stock Activity [Roll Forward]
Beginning balance	$ 315,241	$ 287,009	$ 312,324	$ 281,980
Stock compensation expense	5,042	6,759	9,229	13,029
Ending balance	320,556	294,364	320,556	294,364
Treasury Cost
Common Stock Activity [Roll Forward]
Beginning balance	(365,999)	(362,280)	(361,684)	(359,838)
Stock compensation expense	0	0	0	0
Ending balance	(376,556)	(362,025)	(376,556)	(362,025)
Restricted and performance stock awards | Common Stock
Common Stock Activity [Roll Forward]
Restricted and performance stock awards	(348)	(190)	(1,783)	(1,434)
Restricted and performance stock awards | Treasury Cost
Common Stock Activity [Roll Forward]
Restricted and performance stock awards	348	190	1,783	1,434
Stock options exercised | Common Stock
Common Stock Activity [Roll Forward]
Stock compensation expense	47	354	212	357
Stock options exercised | Treasury Cost
Common Stock Activity [Roll Forward]
Stock compensation expense	27	184	114	185
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	(992)	(184)	(6,829)	(3,871)
Employee stock purchase program | Common Stock
Common Stock Activity [Roll Forward]
Stock compensation expense	574	432	574	432
Employee stock purchase program | Treasury Cost
Common Stock Activity [Roll Forward]
Stock compensation expense	60	65	60	65
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	$ (10,000)	$ 0	$ (10,000)	$ 0