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EQUITY (Tables)

12 Months Ended

Dec. 31, 2023

Equity [Abstract]

Schedule of Share-based Payment Arrangement, Expensed and Capitalized, Amount

Stock-based compensation expense has been recognized as follows (in thousands):

						Year Ended December 31,
						2023									2022									2021
Cost of sales (1)						$			536						$			797						$			1,105
General and administrative expense									4,634									5,579									11,867
Exploration, evaluation and reclamation expense									—									97									105
Other operating expenses, net									—									—									1,722
						$			5,170						$			6,473						$			14,799

(1)    Excludes depreciation, depletion, and amortization.

Schedule of Share-based Payment Arrangement, Deferred Share Units, Activity

The following table summarizes the changes in DSUs and DSU Replacement Units outstanding during the year ended December 31, 2023 (in thousands except per share amounts):

						Number of Shares						Weighted Grant Date Fair Value Per Share									Aggregate Intrinsic Value
Balance as of January 1, 2023						532						$			26.46
Granted						93									14.59
Exercised/Released						(6)									15.84
Canceled/Forfeited						—									—
Reinvested						12									14.74
Balance as of December 31, 2023						631									24.58						$			6,785

Schedule of Share-based Payment Arrangement, Restricted Stock Units, Activity

The following table summarizes the changes in RSUs outstanding during the year ended December 31, 2023 (in thousands except per share amounts):

						Number of Shares						Weighted Average Grant Date Fair Value									Aggregate intrinsic value
Balance as of January 1, 2023						579						$			21.49
Granted						578									15.00
Exercised/Released						(251)									17.81
Canceled/Forfeited						(114)									21.58
Reinvested						15									22.15
Balance as of December 31, 2023						807									17.96						$			8,679

Schedule of Share-based Payment Arrangement, Performance Shares, Activity

The following table summarizes the changes in PSUs outstanding during the year ended December 31, 2023:

						Number of Shares						Weighted Average Grant Date Fair Value									Aggregate Intrinsic Value
Balance as of January 1, 2023						649						$			24.49
Granted						434									14.98
Exercised/Released						(185)									21.16
Canceled/Forfeited						(33)									16.27
Reinvested						16									16.22
Balance as of December 31, 2023						881									20.67						$			9,482

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Share-based Payment Arrangement, Deferred Share Unit, Activity

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Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)
-Publisher FASB
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Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.

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-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-Publisher FASB
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Tabular disclosure of number and weighted-average grant date fair value for nonvested performance shares.

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-Section 50
-Subparagraph (c)
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