Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Operating activities:
Net Income (Loss)	$ (41,282)	$ (32,896)
Non-cash elements included in net (loss) income:
Depreciation, depletion and amortization	111,705	106,743
Inventory adjustments	16,332	2,159
Fair value adjustments, net	5,774	3,486
Provision for reclamation and closure costs	7,805	4,789
Stock-based compensation	5,122	4,298
Deferred income taxes	795	(17,828)
Foreign exchange (gain) loss	(434)	(8,353)
Other non-cash items, net	1,624	2,454
Change in assets and liabilities:
Accounts receivable	25,020	34,788
Inventories	(24,339)	(19,472)
Other current and non-current assets	(15,045)	(3,420)
Accounts payable, accrued and other current liabilities	(2,389)	(21,708)
Accrued payroll and related benefits	(11,244)	1,679
Accrued taxes	(1,008)	(2,652)
Accrued reclamation and closure costs and other non-current liabilities	(3,821)	(297)
Cash provided by operating activities	74,615	53,770
Investing activities:
Additions to properties, plants, equipment and mineral interests	(161,265)	(93,237)
Change in restricted cash	0	2,011
Proceeds from sale of investments	0	9,375
Proceeds from disposition of properties, plants and equipment	160	748
Purchases of investments	(1,753)	(30,540)
Acquisitions, net	0	8,952
Pre-acquisition advance to Alexco	0	(25,000)
Net cash used in investing activities	(162,858)	(127,691)
Financing activities:
Proceeds from sale of common stock, net	25,888	4,542
Acquisition of treasury stock	(2,036)	(3,677)
Borrowing of debt	119,000	25,000
Repayment of debt	(39,000)	0
Dividends paid to common and preferred stockholders	(11,755)	(10,549)
Credit facility fees paid	0	(517)
Repayments of finance leases	(7,990)	(5,222)
Net cash provided by (used in) financing activities	84,107	9,577
Effect of exchange rates on cash	77	(804)
Net (decrease) increase in cash, cash equivalents and restricted cash	(4,059)	(65,148)
Cash, cash equivalents and restricted cash at beginning of period	105,907	211,063
Cash, cash equivalents and restricted cash at end of period	101,848	145,915
Supplemental disclosure of cash flow information:
Cash paid for interest	37,514	37,179
Cash paid for income and mining taxes, net	7,385	13,061
Significant non-cash investing and financing activities:
Addition of finance lease obligations and right-of-use assets	16,092	9,692
Common stock issued to ATAC Resources Ltd. shareholders	18,789	0
Common stock issued to Alexco Resource Corp. shareholders	0	68,733
Common stock issued to settle acquired silver stream	0	135,000
Common stock issued to pension plans	$ 0	$ 5,570