Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Operating activities:
Net Income (Loss)	$ (18,867)	$ (9,370)
Non-cash elements included in net (loss) income:
Depreciation, depletion and amortization	74,610	73,656
Adjustments of inventory to net realizable value	7,518	754
Fair value adjustments, net	(623)	(14,185)
Provision for reclamation and closure costs	5,328	3,271
Stock-based compensation	2,688	2,525
Deferred income taxes	4,585	(1,290)
Foreign exchange (gain) loss	3,807	(3,442)
Other non-cash items, net	1,574	982
Change in assets and liabilities:
Accounts receivable	28,564	19,199
Inventories	(18,121)	(8,352)
Other current and non-current assets	(15,063)	(894)
Accounts payable, accrued and other current liabilities	143	17,119
Accrued payroll and related benefits	(9,543)	278
Accrued taxes	(85)	(5,683)
Accrued reclamation and closure costs and other non-current liabilities	(2,135)	3,524
Cash provided by operating activities	64,380	78,092
Investing activities:
Additions to properties, plants, equipment and mineral interests	(105,911)	(55,807)
Proceeds from sale of investments	0	2,487
Proceeds from disposition of properties, plants and equipment	80	730
Purchases of investments	0	(21,899)
Net cash used in investing activities	(105,831)	(74,489)
Financing activities:
Proceeds from sale of common stock, net	25,888	0
Acquisition of treasury stock	(2,036)	(3,677)
Borrowing of debt	56,000	0
Repayment of debt	(25,000)	0
Dividends paid to common and preferred stockholders	(7,808)	(7,027)
Credit facility fees paid	0	(74)
Repayments of finance leases	(4,765)	(3,333)
Net cash provided by (used in) financing activities	42,279	(14,111)
Effect of exchange rates on cash	1,217	(1,321)
Net (decrease) increase in cash, cash equivalents and restricted cash	2,045	(11,829)
Cash, cash equivalents and restricted cash at beginning of period	105,907	211,063
Cash, cash equivalents and restricted cash at end of period	107,952	199,234
Supplemental disclosure of cash flow information:
Cash paid for interest	18,812	18,749
Cash paid for income and mining taxes, net	6,152	11,888
Significant non-cash investing and financing activities:
Addition of finance lease obligations and right-of-use assets	$ 16,092	$ 5,051