Short-term Investments - Available-for-Sale Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Amortized cost	$ 147,764	$ 242,140
Gross unrealized gains	0	5
Gross unrealized losses	(1,449)	(324)
Fair value	146,315	241,821
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized cost	93,869	177,375
Gross unrealized gains	0	3
Gross unrealized losses	(964)	(195)
Fair value	92,905	177,183
Government-related debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized cost	38,572	33,134
Gross unrealized gains	0	2
Gross unrealized losses	(462)	(97)
Fair value	38,110	33,039
Asset-backed Securities
Debt Securities, Available-for-sale [Line Items]
Amortized cost	15,323	31,631
Gross unrealized gains	0	0
Gross unrealized losses	(23)	(32)
Fair value	$ 15,300	$ 31,599

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563

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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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-Publisher FASB
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Amortized cost 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 320
-SubTopic 10
-Section 50
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-Publisher FASB
-Name Accounting Standards Codification
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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), classified as current.

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-Name Accounting Standards Codification
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