Capital Stock - Schedule of Common Stock Activity (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Common Stock
Common Stock Activity [Roll Forward]
Beginning balance	$ 294,364	$ 267,645	$ 281,980	$ 260,121
Stock compensation expense	8,477	2,967	21,506	11,325
Ending balance	303,417	273,010	303,417	273,010
Treasury Cost
Common Stock Activity [Roll Forward]
Beginning balance	(362,025)	(359,314)	(359,838)	(328,776)
Stock compensation expense	0	0	0	0
Ending balance	(361,773)	(360,056)	(361,773)	(360,056)
Restricted and performance stock awards | Common Stock
Common Stock Activity [Roll Forward]
Restricted and performance stock awards	(15)	(103)	(1,449)	(1,564)
Restricted and performance stock awards | Treasury Cost
Common Stock Activity [Roll Forward]
Restricted and performance stock awards	15	103	1,449	1,564
Stock options exercised | Common Stock
Common Stock Activity [Roll Forward]
Stock compensation expense	591	2,501	948	2,704
Stock options exercised | Treasury Cost
Common Stock Activity [Roll Forward]
Stock compensation expense	307	1,364	492	1,459
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	(70)	(59)	(3,941)	(3,990)
Employee stock purchase program | Common Stock
Common Stock Activity [Roll Forward]
Stock compensation expense			432	424
Employee stock purchase program | Treasury Cost
Common Stock Activity [Roll Forward]
Stock compensation expense			65	62
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	$ 0	$ (2,150)	$ 0	$ (30,375)