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OTHER INCOME (EXPENSE) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Other Income and Expenses [Abstract]
Interest income	$ 2,234	$ 495	$ 3,799	$ 965
Gain (loss) on marketable securities	(2,876)	(1,362)	(3,799)	(1,947)
Gain (loss) on sale of mineral properties, plant, and equipment	(757)	1,636	(1,341)	1,614
Other	(996)	(951)	(1,421)	(2,425)
Total	$ (2,395)	$ (182)	$ (2,762)	$ (1,793)

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- Definition

Other Nonoperating Income (Expense), Other

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- Definition

Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

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The net amount of nonoperating interest income (expense).

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- Definition

Amount of unrealized gain (loss) on investment in marketable security.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(7)(c))
-URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227

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Amount of income (expense) related to nonoperating activities, classified as other.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.9)
-URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227

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