Cash, Cash Equivalents and Investments - Summary of Cash, Cash Equivalents and Investments (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Investments, amortized cost	$ 105,101	$ 131,360
Gross Unrealized Gains	3	15
Gross Unrealized Losses	(226)	(23)
Investments, fair value	104,878	131,352
Corporate bonds and commercial paper
Debt Securities, Available-for-sale [Line Items]
Investments, amortized cost	44,282	31,233
Gross Unrealized Gains	3	15
Gross Unrealized Losses	(66)	(9)
Investments, fair value	44,219	31,239
Certificates of deposit
Debt Securities, Available-for-sale [Line Items]
Investments, amortized cost	12,161	10,007
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Investments, fair value	12,161	10,007
U.S. government securities
Debt Securities, Available-for-sale [Line Items]
Investments, amortized cost	48,658	90,120
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(160)	(14)
Investments, fair value	48,498	90,106
Money market funds
Debt Securities, Available-for-sale [Line Items]
Cash equivalents, amortized cost	170,907	188,469
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Cash equivalents, fair value	170,907	188,469
Certificates of deposit
Debt Securities, Available-for-sale [Line Items]
Cash equivalents, amortized cost	25,090	25,028
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Cash equivalents, fair value	25,090	25,028
Corporate bonds and commercial paper
Debt Securities, Available-for-sale [Line Items]
Cash equivalents, amortized cost		997
Gross Unrealized Gains		0
Gross Unrealized Losses		(1)
Cash equivalents, fair value		996
U.S. government securities
Debt Securities, Available-for-sale [Line Items]
Cash equivalents, amortized cost		19,999
Gross Unrealized Gains		0
Gross Unrealized Losses		0
Cash equivalents, fair value		19,999
Cash Equivalents
Debt Securities, Available-for-sale [Line Items]
Cash equivalents, amortized cost	195,997	234,493
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	(1)
Cash equivalents, fair value	$ 195,997	$ 234,492

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).

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Amount of 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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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.

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