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

6 Months Ended

Jun. 30, 2023

Supplemental Cash Flow Information [Abstract]

Schedule of Accrued Liabilities [Table Text Block]

Accrued liabilities and other consist of the following:

In thousands	June 30, 2023		December 31, 2022
Accrued salaries and wages	$	22,486	$	29,868
Flow-through share premium received (including over-allotment)	5,510		—
Deferred revenue (1)	45,548		25,736
Income and mining taxes	6,040		7,874
Accrued operating costs	8,630		6,241
Unrealized losses on derivatives	67		10
Taxes other than income and mining	2,791		3,318
Accrued interest payable	8,044		8,256
Operating lease liabilities	11,270		11,560
Accrued liabilities and other	$	110,386	$	92,863

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

The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the Condensed Consolidated Balance Sheets that total the same such amounts shown in the Condensed Consolidated Statements of Cash Flows in the three and six months ended June 30, 2023 and 2022:

In thousands	June 30, 2023		June 30, 2022
Cash and cash equivalents	$	56,845	$	74,159
Restricted cash equivalents	1,715		1,396
Total cash, cash equivalents and restricted cash shown in the Condensed Consolidated Statements of Cash Flows	$	58,560	$	75,555