Fair Value - Schedule of Fair Value of Cash Equivalents, Short-term Investments and Long-term Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Cash equivalents, Amortized Cost	$ 117,811	$ 110,537
Recurring Basis \| Cash Equivalents
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Cash equivalents, Amortized Cost	107,075	96,177
Cash equivalents, Unrealized Gains	5
Cash equivalents, Unrealized Losses	(6)	(5)
Cash equivalents, Fair Value	107,074	96,172
Recurring Basis \| Cash Equivalents \| Money Market Fund \| Level 1
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Cash equivalents, Amortized Cost	71	57
Cash equivalents, Fair Value	71	57
Recurring Basis \| Cash Equivalents \| Commercial Paper \| Level 2
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Cash equivalents, Amortized Cost	107,004	96,120
Cash equivalents, Unrealized Gains	5
Cash equivalents, Unrealized Losses	(6)	(5)
Cash equivalents, Fair Value	107,003	96,115
Recurring Basis \| Short-term Investments
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Investments, Amortized Cost	146,447	143,323
Investments, Unrealized Gains	2	2
Investments, Unrealized Losses	(734)	(103)
Investments, Fair Value	145,715	143,222
Recurring Basis \| Short-term Investments \| Commercial Paper \| Level 2
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Investments, Amortized Cost	57,069	74,170
Investments, Unrealized Gains	2
Investments, Unrealized Losses	(100)	(35)
Investments, Fair Value	56,971	74,135
Recurring Basis \| Short-term Investments \| U.S. government debt, municipal bonds, and agency securities \| Level 2
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Investments, Amortized Cost	82,399	62,149
Investments, Unrealized Gains		2
Investments, Unrealized Losses	(603)	(59)
Investments, Fair Value	81,796	62,092
Recurring Basis \| Short-term Investments \| Corporate Bonds \| Level 2
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Investments, Amortized Cost	6,979	7,004
Investments, Unrealized Losses	(31)	(9)
Investments, Fair Value	6,948	6,995
Recurring Basis \| Long Term Investments
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Investments, Amortized Cost	38,367	66,218
Investments, Unrealized Losses	(723)	(282)
Investments, Fair Value	37,644	65,936
Recurring Basis \| Long Term Investments \| Corporate Bonds \| Level 2
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Investments, Amortized Cost	3,305	3,307
Investments, Unrealized Losses	(70)	(20)
Investments, Fair Value	3,235	3,287
Recurring Basis \| Long Term Investments \| U.S. Government Debt and Agency Securities \| Level 2
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Investments, Amortized Cost	35,062	62,911
Investments, Unrealized Losses	(653)	(262)
Investments, Fair Value	$ 34,409	$ 62,649

Cash and cash equivalents accumulated gross unrealized gain before tax.

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Cash and cash equivalents accumulated gross unrealized loss before tax.

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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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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).

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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).

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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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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 noncurrent.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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