Cash, Cash Equivalents and Available for Sale Securities - Schedule of Available for Sale Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 150,864
Gross Unrealized Gains	15
Gross Unrealized Losses	(13)
Fair Value	150,866	$ 143,674
U.S. Treasury securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	45,111
Gross Unrealized Gains	12
Gross Unrealized Losses	0
Fair Value	45,123
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	91,559
Gross Unrealized Gains	2
Gross Unrealized Losses	(12)
Fair Value	91,549
Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	14,194
Gross Unrealized Gains	1
Gross Unrealized Losses	(1)
Fair Value	$ 14,194

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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