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

3 Months Ended

Mar. 31, 2020

Supplemental Cash Flow Information [Abstract]

Schedule of Accrued Liabilities [Table Text Block]

Accrued liabilities and other consist of the following:

In thousands	March 31, 2020		December 31, 2019
Accrued salaries and wages	$	14,567	$	20,047
Silvertip contingent consideration	—		25,000
Deferred revenue (1)	9,909		16,672
Income and mining taxes	1,908		11,243
Accrued operating costs	3,395		4,163
Taxes other than income and mining	2,692		3,554
Accrued interest payable	5,266		1,833
Operating lease liabilities	12,198		13,104
Accrued liabilities and other	$	49,935	$	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 months ended March 31, 2020 and 2019:

In thousands	March 31, 2020		March 31, 2019
Cash and cash equivalents	$	52,895	$	69,033
Restricted cash equivalents	1,163		2,989
Total cash, cash equivalents and restricted cash shown in the statement of cash flows	$	54,058	$	72,022