Derivative Financial Instruments - Summary of Mark-to-Market Gain (Losses) on Derivative Instruments (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Derivative Instruments, Gain (Loss) [Line Items]
Provisional gain (loss) on derivatives and commodity contracts	$ (757)	$ 79	$ (751)	$ (618)
Fair value adjustments, net, pretax	(13,067)	(26,440)	(65,272)	7,000
Fair value adjustments, net	(757)	9,348	(3,890)	9,315
Termination of gold zero cost collars	0	0	(3,139)	0
Embedded Derivative, Gain (Loss) on Embedded Derivative, Net	$ 0	$ 9,269	$ 0	$ 9,933

Cost to terminate zero cost collars related to a gold hedging program. Costs recorded to earnings.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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Net Increase or Decrease in the fair value of the embedded derivative or group of embedded derivatives included in earnings in the period.

+ References

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-Name Accounting Standards Codification
-Topic 815
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Aggregate net gain and losses (whether realized or unrealized) on all derivative instruments held for trading purposes whether or not settled physically.

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Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects.

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The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of open derivatives, commodity, or energy contracts, held at each balance sheet date, that was included in earnings for the period.

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