Quarterly report pursuant to Section 13 or 15(d)

Cover
- COVER
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Cash, Cash Equivalents, Restricted Cash and Short-Term Investments - Investments (Details)

v3.23.1

Cash, Cash Equivalents, Restricted Cash and Short-Term Investments - Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Marketable Securities [Line Items]
Amortized Cost	$ 361,716	$ 389,646
Unrealized Gains	1	0
Unrealized Losses	(183)	(256)
Estimated Fair Value	361,534	389,390
Cash, cash equivalents and restricted cash
Marketable Securities [Line Items]
Amortized Cost	89,001	94,172
Unrealized Gains	0	0
Unrealized Losses	0	0
Estimated Fair Value	89,001	94,172
Certificates of deposit
Marketable Securities [Line Items]
Amortized Cost		4,951
Unrealized Gains		0
Unrealized Losses		(3)
Estimated Fair Value		4,948
Corporate bond
Marketable Securities [Line Items]
Amortized Cost	62,115	104,174
Unrealized Gains	0	0
Unrealized Losses	(62)	(94)
Estimated Fair Value	62,053	104,080
Commercial paper
Marketable Securities [Line Items]
Amortized Cost	176,386	125,255
Unrealized Gains	0	0
Unrealized Losses	(103)	(68)
Estimated Fair Value	176,283	125,187
Treasury bill
Marketable Securities [Line Items]
Amortized Cost	7,102	12,290
Unrealized Gains	1	0
Unrealized Losses	0	(8)
Estimated Fair Value	7,103	12,282
Treasury bond
Marketable Securities [Line Items]
Amortized Cost	26,544	42,301
Unrealized Gains	0	0
Unrealized Losses	(17)	(81)
Estimated Fair Value	26,527	42,220
Yankee bond
Marketable Securities [Line Items]
Amortized Cost	568	6,503
Unrealized Gains	0	0
Unrealized Losses	(1)	(2)
Estimated Fair Value	$ 567	$ 6,501

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