Investments and Fair Value Measurements - Amortized Cost and Unrealized Gains (Losses) (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Commercial Paper
Amortized Cost
Less than 1 year	$ 57,070	$ 100,929
Due after one year through five years	0	0
Total	57,070	100,929
Unrealized gains (losses)
Less than 1 year	(261)	(69)
Due after one year through five years	0	0
Total	(261)	(69)
Corporate Notes/Bonds
Amortized Cost
Less than 1 year	65,045	41,173
Due after one year through five years	36,997	84,478
Total	102,042	125,651
Unrealized gains (losses)
Less than 1 year	(909)	(61)
Due after one year through five years	(749)	(409)
Total	(1,658)	(470)
Securities of Government Sponsored Entities
Amortized Cost
Less than 1 year	2,986	0
Due after one year through five years	0	0
Total	2,986	0
Unrealized gains (losses)
Less than 1 year	(1)	0
Due after one year through five years	0	0
Total	$ (1)	$ 0

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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Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in remainder of current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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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), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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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), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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