Balance Sheet Account Details Marketable Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Marketable Securities [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	$ 65,693	$ 63,745
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	(697)	(135)
Marketable securities, current	44,270	25,758
Marketable securities, non-current	20,726	37,852
Marketable Securities	64,996	63,610
Corporate Debt Securities
Marketable Securities [Line Items]
Marketable securities, current	36,518	22,316
Marketable securities, non-current	12,499	26,678
Asset-backed Securities
Marketable Securities [Line Items]
Marketable securities, current	5,555	3,442
Marketable securities, non-current	8,227	11,174
Commercial Paper
Marketable Securities [Line Items]
Marketable securities, current	2,197	0
Short-term Investments
Marketable Securities [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	44,632	25,787
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	(362)	(29)
Short-term Investments \| Corporate Debt Securities
Marketable Securities [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	36,844	22,344
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	(326)	(28)
Short-term Investments \| Asset-backed Securities
Marketable Securities [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	5,591	3,443
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	(36)	(1)
Short-term Investments \| Commercial Paper
Marketable Securities [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	2,197	0
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	0	0
Long-Term Investments \| Corporate Debt Securities
Marketable Securities [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	12,741	26,761
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	(242)	(83)
Long-Term Investments \| Asset-backed Securities
Marketable Securities [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	8,320	11,197
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	$ (93)	$ (23)

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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