Fair Value of Financial Instruments - Fair Value of Assets (Details) $ in Thousands	Dec. 31, 2021 USD ($)
Assets:
Short-term investments	$ 43,125
Investments in equity securities	1,838
Total assets	44,963
Level 1 - Quoted Prices in Active Markets for Identical Assets
Assets:
Short-term investments	43,125
Investments in equity securities	0
Total assets	43,125
Level 2 - Significant Other Observable Inputs
Assets:
Short-term investments	0
Investments in equity securities	0
Total assets	0
Level 3 - Significant Unobservable Inputs
Assets:
Short-term investments	0
Investments in equity securities	1,838
Total assets	$ 1,838

Short Term Investments, Fair Value Disclosure

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

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- Definition

Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=123594786&loc=SL75136599-209740

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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

No definition available.

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