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Cash, Cash Equivalents and Short-Term Investments - Available-for-sale Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Cash, Cash Equivalents and Short-Term Investments
Amortized Cost	$ 379,115	$ 410,390
Unrealized Gains	3,898	1,248
Unrealized Losses	(224)	(24,687)
Fair Value	382,789	386,951
U.S. Treasury notes
Cash, Cash Equivalents and Short-Term Investments
Amortized Cost	188,726	199,626
Unrealized Gains	2,108	5
Unrealized Losses	(1)	(8,913)
Fair Value	190,833	190,718
Corporate debt securities
Cash, Cash Equivalents and Short-Term Investments
Amortized Cost	190,389	210,764
Unrealized Gains	1,790	1,243
Unrealized Losses	(223)	(15,774)
Fair Value	$ 191,956	$ 196,233

X

- Definition

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).

+ References

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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).

+ References

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Amortized cost excluding accrued interest, before allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
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