Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Operating activities:
Net Income (Loss)	$ 321,712	$ 35,802	$ (84,217)
Non-cash elements included in net income (loss):
Depreciation, depletion and amortization	165,570	190,471	163,672
Fair value adjustments, net	(12,455)	2,204	(2,925)
Inventory adjustments	13,012	11,707	20,819
Provision for reclamation and closure costs	11,635	9,370	9,658
Deferred income taxes	130,467	19,688	(6,115)
Stock-based compensation	10,918	8,659	6,598
Foreign exchange (gain) loss	5,764	(7,552)	3,810
Write-down of property, plant and equipment	0	14,574	0
Other non-cash items	12,049	1,706	3,094
Changes in assets and liabilities:
Accounts receivable	(136,835)	(17,159)	25,133
Inventories	(21,469)	(32,835)	(24,035)
Other current and non-current assets	30,915	(12,517)	(32,456)
Accounts payable, accrued and other current liabilities	(765)	(2,826)	598
Accrued payroll and related benefits	22,372	6,739	(4,982)
Accrued taxes	16,978	2,817	(571)
Accrued reclamation and closure costs and other non-current liabilities	(7,230)	(12,571)	(2,582)
Net cash provided by operating activities	562,638	218,277	75,499
Investing activities:
Additions to property, plant and equipment and mine development	(252,389)	(214,492)	(223,887)
Proceeds from disposition of assets	734	1,694	1,329
Acquisition, net	0	0	228
Proceeds from sale or exchange of investments	28,087	0	0
Purchase of silver puts	(25,000)	0	0
Purchases of investments	(21,932)	(73)	(8,962)
Net cash used in investing activities	(270,500)	(212,871)	(231,292)
Financing activities:
Proceeds from issuance of common stock, net of offering costs	216,225	58,368	56,684
Dividends paid to common and preferred stockholders	(10,375)	(25,331)	(15,713)
Acquisition of treasury shares from employee equity awards	(885)	(1,197)	(2,036)
Borrowings of debt	153,000	279,000	239,000
Repayments of debt	(427,245)	(384,000)	(111,000)
Repayments of finance leases and other	(8,715)	(10,664)	(10,605)
Net cash (used in) provided by financing activities	(77,995)	(83,824)	156,330
Effect of exchange rates on cash	544	(1,076)	1,095
Net increase (decrease) in cash and cash equivalents and restricted cash and cash equivalents	214,687	(79,494)	1,632
Cash and cash equivalents and restricted cash and cash equivalents at beginning of year	28,045	107,539	105,907
Cash and cash equivalents and restricted cash and cash equivalents at end of year	242,732	28,045	107,539
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	241,558	26,868	106,374
Non-current restricted cash and cash equivalents	1,174	1,177	1,165
Total cash and cash equivalents and restricted cash and cash equivalenst as reported on the consolidated cash flow statement	242,732	28,045	107,539
Supplemental Cash Flow Information [Abstract]
Interest	45,052	46,061	37,744
Income and mining taxes, net of refunds	8,725	6,571	8,907
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]
Addition of finance lease obligations and right-of-use assets	630	5,605	16,116
Recognition of operating lease liabilities and right-of-use assets	1,382	0	203
Properties, plants, equipment and mine development additions in accounts payable and accrued liabilities	4,559	1,975	0
Common stock contributed to pension plans	0	0	1,035
Common Stock Issued as Incentive Compensation	2,503	6,588	0
Common stock issued to directors	1,034	796	676
Common stock issued to interim CEO	0	283	0
Common stock issued for 401(k) match	5,052	4,763	4,608
Common stock issued for warrant exercises	0	372	0
Common stock issued to stockholders	$ 0	$ 0	$ 18,789