Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
CASH FLOWS FROM OPERATING ACTIVITIES:
NET INCOME (LOSS)	$ 2,060	$ (11,900)
Adjustments:
Amortization	29,937	36,162
Accretion	2,905	2,847
Deferred income taxes	124	(5,487)
Loss on debt extinguishment	9,173	0
Fair value adjustments, net	3,799	8,819
Stock-based compensation	4,256	2,013
Gain on Modification of Lease	0	(4,051)
Inventory Write-down	0	10,381
Revenue Recognized	(8,346)	(7,548)
Foreign exchange and other	(2,328)	(1,092)
Changes in operating assets and liabilities:
Receivables	999	(813)
Prepaid expenses and other current assets	(655)	(346)
Inventories	(17,486)	(21,925)
Accounts payable and accrued liabilities	(28,797)	(15,051)
CASH PROVIDED (USED IN) BY OPERATING ACTIVITIES	(4,359)	(7,991)
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(59,424)	(22,208)
Proceeds from the sale of assets	4,588	4,506
Sale of investments	935	0
Other	(17)	(17)
CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES	(53,918)	(17,719)
CASH FLOWS FROM FINANCING ACTIVITIES:
Issuance of notes and bank borrowings, net of issuance costs	367,493	50,000
Payments on long-term debt, capital leases, and associated costs	(243,967)	(5,901)
Gold production royalty payments	0	(18,750)
Other	(3,925)	(1,973)
CASH PROVIDED (USED IN) BY FINANCING ACTIVITIES	119,601	23,376
Effect of exchange rate changes on cash and cash equivalents	(51)	(626)
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	61,273	(2,960)
Cash, cash equivalents and restricted cash at beginning of period	94,170	57,018
Cash, cash equivalents and restricted cash at end of period	$ 155,443	$ 54,058