Investments in marketable securities.

No definition available.

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- Definition

Shares Purchased During Period, Shares

+ References

No definition available.

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- References

No definition available.

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- Definition

Cost of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). Excludes equity method investment and investment in equity security without readily determinable fair value.

+ References

No definition available.

+ Details

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- Definition

Amount of unrealized gain on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=123583765&loc=SL75117546-209714

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- Definition

Amount of unrealized loss on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

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- Definition

Percent of net assets at close of period. For schedules of investments that are categorized, each category has a percent of net assets for the aggregated value of the Investments in the category.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 320
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-12B(Column D))
-URI http://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 210
-Section 50
-Paragraph 6
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=99383244&loc=d3e12121-115841

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- Definition

Amount of investment in marketable security, classified as noncurrent.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.12)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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- Definition

Amount of realized gain (loss) on investment in marketable security, including other-than-temporary impairment (OTTI).

+ References

No definition available.

+ Details

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Balance Type:	credit
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- Definition

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

+ References

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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Investments (Details) - Equity securities - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		12 Months Ended
	Mar. 21, 2022	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Debt Securities, Available-for-sale [Abstract]
Marketable Securities, Realized Gain (Loss)		$ 0	$ (769)
Unrealized gain (loss) on equity securities		13,744	$ (4,568)
Investment in Marketable Securities (Textual) [Abstract]
Cost		154,118		$ 138,165
Equity Securities, FV-NI, Unrealized Gain (Loss)		12,410		0
Equity Securities, FV-NI, Unrealized Gain		4,634		5,968
Marketable Securities, Noncurrent				132,197
Integra Resources Corp. [Member]
Investment in Marketable Securities (Textual) [Abstract]
Cost		9,455		9,455
Equity Securities, FV-NI, Unrealized Gain (Loss)		0		0
Equity Securities, FV-NI, Unrealized Gain		4,074		1,469
Marketable Securities, Noncurrent		5,381		7,986
Other Investments [Member]
Investment in Marketable Securities (Textual) [Abstract]
Cost		2,233
Equity Securities, FV-NI, Unrealized Gain (Loss)		0
Equity Securities, FV-NI, Unrealized Gain		0
Marketable Securities, Noncurrent		2,233
Victoria Gold Corp
Investment in Marketable Securities (Textual) [Abstract]
Cost		128,710		128,710
Equity Securities, FV-NI, Unrealized Gain (Loss)		12,410		0
Equity Securities, FV-NI, Unrealized Gain		0		4,499
Marketable Securities, Noncurrent		141,120		$ 124,211
Avino Silver & Gold Mines Ltd
Investment in Marketable Securities (Textual) [Abstract]
Shares purchased during period, shares	14,000
Investment owned, percent of assets	12.00%
Cost		13,720
Equity Securities, FV-NI, Unrealized Gain (Loss)		0
Equity Securities, FV-NI, Unrealized Gain		560
Marketable Securities, Noncurrent		$ 13,160