Fair Value of Financial Instruments - (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Short-term investments:
Total	$ 89,908	$ 133,778
Corporate debt securities and commercial paper
Short-term investments:
Short-term investments:	43,162	75,870
Long-term investments:		15,964
U.S. treasury securities and government agency obligations
Short-term investments:
Short-term investments:	25,676
Long-term investments:		8,000
Money market funds
Cash equivalents:
Money market funds	21,070	33,944
Quoted Prices in Active Markets (Level 1)
Short-term investments:
Total	21,070	33,944
Quoted Prices in Active Markets (Level 1) | Corporate debt securities and commercial paper
Short-term investments:
Short-term investments:	0	0
Long-term investments:		0
Quoted Prices in Active Markets (Level 1) | U.S. treasury securities and government agency obligations
Short-term investments:
Short-term investments:	0
Long-term investments:		0
Quoted Prices in Active Markets (Level 1) | Money market funds
Cash equivalents:
Money market funds	21,070	33,944
Other Observable Inputs (Level 2)
Short-term investments:
Total	68,838	99,834
Other Observable Inputs (Level 2) | Corporate debt securities and commercial paper
Short-term investments:
Short-term investments:	43,162	75,870
Long-term investments:		15,964
Other Observable Inputs (Level 2) | U.S. treasury securities and government agency obligations
Short-term investments:
Short-term investments:	25,676
Long-term investments:		8,000
Other Observable Inputs (Level 2) | Money market funds
Cash equivalents:
Money market funds	0	0
Unobservable Inputs (Level 3)
Short-term investments:
Total	0	0
Unobservable Inputs (Level 3) | Corporate debt securities and commercial paper
Short-term investments:
Short-term investments:	0	0
Long-term investments:		0
Unobservable Inputs (Level 3) | U.S. treasury securities and government agency obligations
Short-term investments:
Short-term investments:	0
Long-term investments:		0
Unobservable Inputs (Level 3) | Money market funds
Cash equivalents:
Money market funds	$ 0	$ 0