Additional Balance Sheet Detail and Supplemental Cash Flow Information (Tables)

9 Months Ended

Sep. 30, 2020

Supplemental Cash Flow Information [Abstract]

Schedule of Accrued Liabilities [Table Text Block]

Accrued liabilities and other consist of the following:

In thousands	September 30, 2020		December 31, 2019
Accrued salaries and wages	$	23,202	$	20,047
Silvertip contingent consideration	—		25,000
Deferred revenue (1)	11,463		16,672
Income and mining taxes	14,784		11,243
Accrued operating costs	2,991		3,752
Unrealized losses on derivatives	34,224		411
Taxes other than income and mining	3,392		3,554
Accrued interest payable	5,218		1,833
Operating lease liabilities	12,716		13,104
Accrued liabilities and other	$	107,990	$	95,616

Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]

he following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the statement of financial position that total the same such amounts shown in the statement of cash flows in the three and nine months ended September 30, 2020 and 2019:

In thousands	September 30, 2020		September 30, 2019
Cash and cash equivalents	$	77,148	$	65,319
Restricted cash equivalents	1,380		2,362
Total cash, cash equivalents and restricted cash shown in the statement of cash flows	$	78,528	$	67,681