Income Taxes (Schedule of Effective Income Tax Rate Reconciliation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Earnings before income tax	$ 550,100	$ 282,400	$ 406,000
Statutory federal and provincial tax rate in British Columbia, Canada	27.00%	27.00%	27.00%
Expected income tax expense	$ 148,500	$ 76,200	$ 109,600
Different tax rates of subsidiaries operating in foreign jurisdictions	(10,900)	(3,700)	(6,400)
Non-deductible expenses	4,100	11,100	7,700
Executive compensation and fringe benefits	3,500	5,000	300
Non-taxable gain on capital items	100	(400)	(19,400)
Benefit of Foreign-Derived Intangible Income (FDII)	(3,200)	(6,900)	0
Unrecognized tax benefits	5,500	2,000	(1,500)
Equity compensation	(5,100)	(3,900)	(2,300)
Other	(5,200)	(3,000)	(1,800)
Income tax expense	$ 137,300	$ 76,400	$ 86,200