Consolidated Statements of Changes in Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	JDS Silver	Common Stock	Common Stock JDS Silver	Additional Paid-In Capital	Additional Paid-In Capital JDS Silver	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)
Balances, in shares at Dec. 31, 2018			203,310
Balances at Dec. 31, 2018	$ 852,512		$ 2,033		$ 3,443,082		$ (2,592,544)	$ (59)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(341,203)						(341,203)
Other comprehensive income (loss)	(77)							(77)
Common stock issued for the extinguishment of Senior Notes (in shares)			4,453
Common stock issued for the extinguishment of Senior Notes	21,291		$ 45		21,246
Common stock issued for investment (in shares)			30,850
Stock issued during period, value, new issues	122,832		$ 309		122,523
Common stock issued for Silvertip contingent consideration payment (in shares)				953
Common stock issued for Silvertip contingent consideration payment		$ 5,973		$ 8		$ 5,965
Common stock issued under stock-based compensation plans, net (in shares)			1,963
Common stock issued/canceled under long-term incentive plans and director fees and options, net	5,676		$ 20		5,656
Balances, in shares at Dec. 31, 2019			241,529
Balances at Dec. 31, 2019	667,004		$ 2,415		3,598,472		(2,933,747)	(136)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	25,627						25,627
Other comprehensive income (loss)	(11,000)							(11,000)
Common stock issued for Silvertip contingent consideration payment (in shares)				878
Common stock issued for Silvertip contingent consideration payment		$ 5,295		$ 9		$ 5,286
Common stock issued under stock-based compensation plans, net (in shares)			1,345
Common stock issued/canceled under long-term incentive plans and director fees and options, net	6,553		$ 14		6,539
Balances, in shares at Dec. 31, 2020			243,752
Balances at Dec. 31, 2020	693,479		$ 2,438		3,610,297		(2,908,120)	(11,136)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(31,322)						(31,322)
Other comprehensive income (loss)	9,924							9,924
Common stock issued for investment (in shares)			12,786
Stock issued during period, value, new issues	118,777		$ 128		118,649
Common stock issued under stock-based compensation plans, net (in shares)			381
Common stock issued/canceled under long-term incentive plans and director fees and options, net	9,404		$ 3		9,401
Balances, in shares at Dec. 31, 2021			256,919
Balances at Dec. 31, 2021	$ 800,262		$ 2,569		$ 3,738,347		$ (2,939,442)	$ (1,212)