Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net Income (Loss)	$ 35,802	$ (84,217)	$ (37,348)
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Depreciation, depletion and amortization	190,471	163,672	145,147
Fair value adjustments, net	2,204	(2,925)	24,182
Inventory adjustments	11,707	20,819	2,646
Provision for reclamation and closure costs	9,370	9,658	9,572
Deferred income taxes	19,688	(6,115)	(25,546)
Stock-based compensation	8,659	6,598	6,012
Foreign exchange (gain) loss	(7,552)	3,810	(9,210)
Writedown of property, plant and equipment	14,574	0	0
Other non-cash items	1,706	3,094	3,736
Changes in assets and liabilities:
Accounts receivable	(17,159)	25,133	8,669
Inventories	(32,835)	(24,035)	(18,230)
Other current and non-current assets	(12,517)	(32,456)	(12,388)
Accounts payable, accrued and other current liabilities	(2,826)	598	(24,981)
Accrued payroll and related benefits	6,739	(4,982)	13,732
Accrued taxes	2,817	(571)	(7,927)
Accrued reclamation and closure costs and other non-current liabilities	(12,571)	(2,582)	11,824
Net cash provided by operating activities	218,277	75,499	89,890
Net Cash Provided by (Used in) Investing Activities [Abstract]
Additions to property, plant and equipment and mine development	(214,492)	(223,887)	(149,378)
Proceeds from disposition of assets	1,694	1,329	748
Pre-acquisition advance to Alexco	0	0	(25,000)
Acquisition, net	0	228	8,953
Proceeds from sale or exchange of investments	0	0	9,375
Purchases of investments	(73)	(8,962)	(31,971)
Net cash used in investing activities	(212,871)	(231,292)	(187,273)
Net Cash Provided by (Used in) Financing Activities [Abstract]
Proceeds from issuance of common stock, net of offering costs	58,368	56,684	17,278
Dividends paid to common and preferred stockholders	(25,331)	(15,713)	(12,932)
Acquisition of treasury shares from employee equity awards	(1,197)	(2,036)	(3,677)
Borrowings of debt	279,000	239,000	25,000
Repayments of debt	(384,000)	(111,000)	(25,000)
Repayments of finance leases and other	(10,664)	(10,605)	(8,169)
Net cash (used in) provided by financing activities	(83,824)	156,330	(7,500)
Effect of exchange rates on cash	(1,076)	1,095	(273)
Net (decrease) increase in cash and cash equivalents and restricted cash and cash equivalents	(79,494)	1,632	(105,156)
Cash and cash equivalents and restricted cash and cash equivalents at beginning of year	107,539	105,907	211,063
Cash and cash equivalents and restricted cash and cash equivalents at end of year	28,045	107,539	105,907
Reconciliation of cash and cash equivalents and restricted cash and cash equivalensts above to where reported on the consolidated balance sheet
Cash and cash equivalents	26,868	106,374	104,743
Non current restricted cash and cash equivalents	1,177	1,165	1,164
Total cash and cash equivalents and restricted cash and cash equivalenst as reported on the consolidated cash flow statement	28,045	107,539	105,907
Supplemental Cash Flow Information [Abstract]
Interest	46,061	37,744	37,200
Income and mining taxes, net of refunds	6,571	8,907	14,405
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]
Addition of finance lease obligations and right-of-use assets	5,605	16,116	11,887
Recognition of operating lease liabilities and right-of-use assets	0	203	6,842
Properties, plants, equipment and mine development additions in accounts payable and accrued liabilities	1,975	0	0
Common stock contributed to pension plans	0	1,035	9,740
Common Stock Issued as Incentive Compensation	6,588	0	0
Common stock issued to directors	796	676	417
Common stock issued to interim CEO	283	0	0
Common stock issued for 401(k) match	4,763	4,608	4,470
Common stock issued for warrant exercises	372	0	0
Common stock issued to settle acquired silver stream	0	0	135,000
Common stock issued to Alexco Resource Corp. stockholders
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]
Common stock issued to stockholders	0	0	68,733
Common stock issued to ATAC Resources Ltd. stockholders
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]
Common stock issued to stockholders	$ 0	$ 18,789	$ 0