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Short-term and Long-term Investments (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2021 USD ($)	Sep. 30, 2021 USD ($)
Investment Holdings [Line Items]
Equity Securities, FV-NI, Unrealized Loss	$ (10,314)	$ (1,986)
Short-term Investments
Investment Holdings [Line Items]
Equity Securities Fv Ni Reclassified To Short Term Investments	$ 15,264	$ 15,264

X

- Definition

Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), reclassified to short-term investments.

+ References

No definition available.

+ Details

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X

- 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

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

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

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