Income and Mining Taxes - Income (Loss) Before Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Tax Examination [Line Items]
Income (loss) before income and mining taxes	$ (55,561)	$ (48,368)	$ (112,117)	$ 13,964
Tax (expense) benefit	1,883	6,400	15,079	34,526
United States
Income Tax Examination [Line Items]
United States, Income (loss) before tax	(59,012)	(30,247)	(154,263)	(9,131)
Tax (expense) benefit	(74)	4,078	(2,270)	(4,775)
Canada
Income Tax Examination [Line Items]
Foreign, Income (loss) before tax	8,960	13,879	22,859	39,643
Tax (expense) benefit	0	0	(21)	0
Mexico
Income Tax Examination [Line Items]
Foreign, Income (loss) before tax	(12,178)	4,138	(64,847)	(59,603)
Tax (expense) benefit	(1,809)	(10,478)	(12,788)	(29,751)
Other jurisdictions
Income Tax Examination [Line Items]
Foreign, Income (loss) before tax	(233)	104	(158)	(3,135)
Tax (expense) benefit	$ 0	$ 0	$ 0	$ 0