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Investments and Fair Value of Financial Instruments - Financial Assets and Liabilities Measured at Fair Value (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Financial Assets
Total	$ 208,692	$ 139,693
Commercial paper
Financial Assets
Marketable investments:	39,756
Certificates of Deposit
Financial Assets
Marketable investments:	6,401
U.S. treasury
Financial Assets
Marketable investments:	10,066	14,004
U.S. agency and government sponsored securities
Financial Assets
Marketable investments:		6,823
U.S. states and municipalities
Financial Assets
Marketable investments:	2,915	22,959
Corporate bonds
Financial Assets
Marketable investments:	62,563	74,386
Money market funds
Financial Assets
Cash equivalents:	86,991	21,521
Fair Value, Inputs, Level 1
Financial Assets
Total	97,057	35,525
Fair Value, Inputs, Level 1 | Commercial paper
Financial Assets
Marketable investments:	0
Fair Value, Inputs, Level 1 | Certificates of Deposit
Financial Assets
Marketable investments:	0
Fair Value, Inputs, Level 1 | U.S. treasury
Financial Assets
Marketable investments:	10,066	14,004
Fair Value, Inputs, Level 1 | U.S. agency and government sponsored securities
Financial Assets
Marketable investments:		0
Fair Value, Inputs, Level 1 | U.S. states and municipalities
Financial Assets
Marketable investments:	0	0
Fair Value, Inputs, Level 1 | Corporate bonds
Financial Assets
Marketable investments:	0	0
Fair Value, Inputs, Level 1 | Money market funds
Financial Assets
Cash equivalents:	86,991	21,521
Fair Value, Inputs, Level 2
Financial Assets
Total	111,635	104,168
Fair Value, Inputs, Level 2 | Commercial paper
Financial Assets
Marketable investments:	39,756
Fair Value, Inputs, Level 2 | Certificates of Deposit
Financial Assets
Marketable investments:	6,401
Fair Value, Inputs, Level 2 | U.S. treasury
Financial Assets
Marketable investments:	0	0
Fair Value, Inputs, Level 2 | U.S. agency and government sponsored securities
Financial Assets
Marketable investments:		6,823
Fair Value, Inputs, Level 2 | U.S. states and municipalities
Financial Assets
Marketable investments:	2,915	22,959
Fair Value, Inputs, Level 2 | Corporate bonds
Financial Assets
Marketable investments:	62,563	74,386
Fair Value, Inputs, Level 2 | Money market funds
Financial Assets
Cash equivalents:	0	0
Fair Value, Inputs, Level 3
Financial Assets
Total	0	0
Fair Value, Inputs, Level 3 | Commercial paper
Financial Assets
Marketable investments:	0
Fair Value, Inputs, Level 3 | Certificates of Deposit
Financial Assets
Marketable investments:	0
Fair Value, Inputs, Level 3 | U.S. treasury
Financial Assets
Marketable investments:	0	0
Fair Value, Inputs, Level 3 | U.S. agency and government sponsored securities
Financial Assets
Marketable investments:		0
Fair Value, Inputs, Level 3 | U.S. states and municipalities
Financial Assets
Marketable investments:	0	0
Fair Value, Inputs, Level 3 | Corporate bonds
Financial Assets
Marketable investments:	0	0
Fair Value, Inputs, Level 3 | Money market funds
Financial Assets
Cash equivalents:	$ 0	$ 0

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+ References

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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-Publisher FASB
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
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-Name Accounting Standards Codification
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