Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating activities:
Net loss	$ (17,185)	$ (25,533)
Non-cash elements included in net loss:
Depreciation, depletion and amortization	41,630	40,267
Unrealized loss (gain) on investments	978	(96)
Adjustment of inventory to market value	0	1,399
Gain on disposition of properties, plants, equipment, and mineral interests	(104)	0
Provision for reclamation and closure costs	1,548	1,594
Stock compensation	1,219	1,580
Deferred income taxes	(3,252)	(8,293)
Amortization of loan origination fees and loss on extinguishment of debt	2,140	625
(Gain) loss on derivative contracts	(10,437)	3,686
Foreign exchange (gain) loss	(8,066)	5,550
Other non-cash items, net	0	2
Change in assets and liabilities:
Accounts receivable	9,955	(5,063)
Inventories	(6,602)	3,171
Other current and non-current assets	(2,642)	1,124
Accounts payable and accrued liabilities	(11,879)	(9,496)
Accrued payroll and related benefits	9,495	7,212
Accrued taxes	1,332	1,237
Accrued reclamation and closure costs and other non-current liabilities	(3,203)	1,064
Cash provided by operating activities	4,927	20,030
Investing activities:
Additions to properties, plants, equipment and mineral interests	(19,870)	(33,071)
Proceeds from disposition of properties, plants and equipment	154	1
Net cash used in investing activities	(19,716)	(33,070)
Financing activities:
Dividends paid to common stockholders	(1,304)	(1,209)
Dividends paid to preferred stockholders	(138)	(138)
Credit facility fees paid	(458)	(39)
Borrowings on debt	679,500	58,000
Repayments of debt	(506,500)	(58,000)
Repayments of finance leases	(1,284)	(1,261)
Net cash provided by (used in) financing activities	169,816	(2,647)
Effect of exchange rates on cash	(1,736)	95
Net increase (decrease) in cash, cash equivalents and restricted cash and cash equivalents	153,291	(15,592)
Cash, cash equivalents and restricted cash and cash equivalents at beginning of period	63,477	28,414
Cash, cash equivalents and restricted cash and cash equivalents at end of period	216,768	12,822
Supplemental disclosure of cash flow information:
Cash paid for interest	13,984	672
Significant non-cash investing and financing activities:
Addition of finance lease obligations and right-of-use assets	0	3,498
Recognition of operating lease liabilities and right-of-use assets	$ 0	$ 22,365