Fair Value Measurements - Summary of Fair Value Measurements for Items (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total assets at fair value	$ 292,574	$ 327,766
Warrants receivable
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Warrants receivable	900	900
U.S. government and government agencies
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities	185,389	228,467
Corporate debt securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities	106,285	98,399
Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total assets at fair value	0	0
Level 1 \| Warrants receivable
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Warrants receivable	0	0
Level 1 \| U.S. government and government agencies
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities	0	0
Level 1 \| Corporate debt securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities	0	0
Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total assets at fair value	291,674	326,866
Level 2 \| Warrants receivable
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Warrants receivable	0	0
Level 2 \| U.S. government and government agencies
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities	185,389	228,467
Level 2 \| Corporate debt securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities	106,285	98,399
Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total assets at fair value	900	900
Level 3 \| Warrants receivable
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Warrants receivable	900	900
Level 3 \| U.S. government and government agencies
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities	0	0
Level 3 \| Corporate debt securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities	$ 0	$ 0

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

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 https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(6))
-URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=124260329&loc=d3e26610-111562

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (aa)
-URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563

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No definition available.

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- Definition

Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price.

+ References

No definition available.

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