Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2023

Fair Value Disclosures [Abstract]

Schedule of Fair Value Adjustments to Comprehensive income (Loss)

	Year Ended December 31,
In thousands	2023		2022		2021
Change in the value of equity securities(1)	$	3,384	$	(63,529)	$	(10,476)
Exchange agreement embedded derivative	—		—		9,933
Termination of gold zero cost collars	—		(3,139)		—
Fair value adjustments, net	$	3,384	$	(66,668)	$	(543)

(1) Includes unrealized losses on held equity securities of nil, $47.9 million, and $10.4 million for the years ended December 31, 2023, 2022 and 2021, respectively.

Financial assets and liabilities measured at fair value on recurring basis

The following table presents the Company’s financial assets and liabilities measured at fair value on a recurring basis (at least annually) by level within the fair value hierarchy. Assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement:

	Fair Value at December 31, 2023
In thousands	Total		Level 1		Level 2		Level 3
Assets:
Provisional metal sales contracts	$	318	$	—	$	318	$	—
Silver forwards	3,312		—		3,312		—
	$	3,630	$	—	$	3,630	$	—
Liabilities:
Gold forwards	$	1,981	$	—	$	1,981	$	—

	Fair Value at December 31, 2022
In thousands	Total		Level 1		Level 2		Level 3
Assets:
Equity securities including warrants	$	44,152	$	43,893	$	259	$	—
Provisional metal sales contracts	299		—		299		—
Gold forwards	12,343		—		12,343		—
	$	56,794	$	43,893	$	12,901	$	—
Liabilities:
Provisional metal sales contracts	$	10	$	—	$	10	$	—

Financial Assets and Liabilities not Measured at Fair Value

The fair value of financial assets and liabilities carried at book value in the financial statements at December 31, 2023 and December 31, 2022 is presented in the following table:

	December 31, 2023
In thousands	Book Value		Fair Value		Level 1		Level 2		Level 3
Liabilities:
2029 Senior Notes(1)	$	295,115	$	271,272	$	—	$	271,272	$	—
Revolving Credit Facility(2)	$	175,000	$	175,000	$	—	$	175,000	$	—

(1) Net of unamortized debt issuance costs of $3.9 million

(2) Unamortized debt issuance costs of $2.8 million included in Other Non-Current Assets.

	December 31, 2022
In thousands	Book Value		Fair Value		Level 1		Level 2		Level 3
Assets:
Promissory note	$	4,926	$	4,579	$	—	$	4,579	$	—
Deferred cash consideration	$	7,677	$	7,317	$	—	$	7,317	$	—
Liabilities:
2029 Senior Notes(1)	$	369,212	$	291,924	$	—	$	291,924	$	—
Revolving Credit Facility(2)	$	80,000	$	80,000	$	—	$	80,000	$	—

(1) Net of unamortized debt issuance costs of $5.8 million.

(2) Unamortized debt issuance costs of $3.6 million included in Other Non-Current Assets.