Summary of Significant Accounting Policies - Schedule of Short-term and Long-term Investment Marketable Securities by Security Type (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Available For Sale Securities Fair Value To Amortized Cost Basis [Line Items]
Amortized Cost	$ 336,049	$ 371,927
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(3,135)	(838)
Estimated Fair Value	332,914	371,089
Long Term Investment
Available For Sale Securities Fair Value To Amortized Cost Basis [Line Items]
Amortized Cost	95,875	141,078
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(1,697)	(681)
Estimated Fair Value	94,178	140,397
Long Term Investment \| US Government Notes
Available For Sale Securities Fair Value To Amortized Cost Basis [Line Items]
Amortized Cost		20,166
Gross Unrealized Gains		0
Gross Unrealized Losses		(77)
Estimated Fair Value		20,089
Corporate Note Securities \| Long Term Investment
Available For Sale Securities Fair Value To Amortized Cost Basis [Line Items]
Amortized Cost	88,886	117,868
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(1,584)	(596)
Estimated Fair Value	87,302	117,272
Asset-backed Securities \| Long Term Investment
Available For Sale Securities Fair Value To Amortized Cost Basis [Line Items]
Amortized Cost		3,044
Gross Unrealized Gains		0
Gross Unrealized Losses		(8)
Estimated Fair Value		3,036
Commercial Paper \| Long Term Investment
Available For Sale Securities Fair Value To Amortized Cost Basis [Line Items]
Amortized Cost	6,989
Gross Unrealized Gains	0
Gross Unrealized Losses	(113)
Estimated Fair Value	6,876
Short Term Investments
Available For Sale Securities Fair Value To Amortized Cost Basis [Line Items]
Amortized Cost	240,174	230,849
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(1,438)	(157)
Estimated Fair Value	238,736	230,692
Short Term Investments \| US Government Notes
Available For Sale Securities Fair Value To Amortized Cost Basis [Line Items]
Amortized Cost	53,246	18,033
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(371)	(35)
Estimated Fair Value	52,875	17,998
Short Term Investments \| Corporate Note Securities
Available For Sale Securities Fair Value To Amortized Cost Basis [Line Items]
Amortized Cost	107,976	98,642
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(842)	(95)
Estimated Fair Value	107,134	98,547
Short Term Investments \| Asset-backed Securities
Available For Sale Securities Fair Value To Amortized Cost Basis [Line Items]
Amortized Cost	3,034
Gross Unrealized Gains	0
Gross Unrealized Losses	(36)
Estimated Fair Value	2,998
Short Term Investments \| Commercial Paper
Available For Sale Securities Fair Value To Amortized Cost Basis [Line Items]
Amortized Cost	75,918	114,174
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(189)	(27)
Estimated Fair Value	$ 75,729	$ 114,147

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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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