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Fair Value Measurements and Fair Value of Financial Instruments - Fair value (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Fair value on a recurring basis
Cash equivalents fair value	$ 32,100	$ 75,300
Unrealized Gains	119	233
Unrealized Losses	(2)	(3)
Level 2
Fair value on a recurring basis
Marketable securities	$ 93,000	82,800
Level 2 | Minimum
Fair value on a recurring basis
Expected maturity term	3 days
Level 2 | Maximum
Fair value on a recurring basis
Expected maturity term	15 months 6 days
Amortized cost
Fair value on a recurring basis
Cash equivalents fair value	$ 32,083	75,277
Total assets fair value	124,969	157,865
Amortized cost | Level 1 | Money market funds
Fair value on a recurring basis
Cash equivalents fair value	32,083	72,800
Amortized cost | Level 2 | U.S. Treasury securities
Fair value on a recurring basis
Cash equivalents fair value		2,477
Short-term
Fair value on a recurring basis
Unrealized Gains	96	189
Unrealized Losses	(1)	(3)
Short-term | Level 2 | Commercial paper
Fair value on a recurring basis
Unrealized Gains	13	25
Unrealized Losses	0	(1)
Short-term | Level 2 | Corporate debt securities
Fair value on a recurring basis
Unrealized Gains	2	7
Unrealized Losses	0	0
Short-term | Level 2 | U.S. Treasury securities
Fair value on a recurring basis
Unrealized Gains	66	123
Unrealized Losses	(1)	0
Short-term | Level 2 | Agency securities
Fair value on a recurring basis
Unrealized Gains	2	12
Unrealized Losses	0	(2)
Short-term | Level 2 | Asset-backed securities
Fair value on a recurring basis
Unrealized Gains	13	22
Unrealized Losses	0	0
Short-term | Amortized cost
Fair value on a recurring basis
Marketable securities	84,102	75,224
Short-term | Amortized cost | Level 2 | Commercial paper
Fair value on a recurring basis
Marketable securities	19,845	14,447
Short-term | Amortized cost | Level 2 | Corporate debt securities
Fair value on a recurring basis
Marketable securities	1,485	6,909
Short-term | Amortized cost | Level 2 | U.S. Treasury securities
Fair value on a recurring basis
Marketable securities	52,227	27,493
Short-term | Amortized cost | Level 2 | Agency securities
Fair value on a recurring basis
Marketable securities	4,491	21,345
Short-term | Amortized cost | Level 2 | Asset-backed securities
Fair value on a recurring basis
Marketable securities	6,054	5,030
Long-term
Fair value on a recurring basis
Unrealized Gains	23	44
Unrealized Losses	(1)	0
Long-term | Level 2 | Commercial paper
Fair value on a recurring basis
Unrealized Gains	0
Unrealized Losses	(1)
Long-term | Level 2 | U.S. Treasury securities
Fair value on a recurring basis
Unrealized Gains	23	36
Unrealized Losses	0	0
Long-term | Level 2 | Asset-backed securities
Fair value on a recurring basis
Unrealized Gains		8
Unrealized Losses		0
Long-term | Amortized cost
Fair value on a recurring basis
Marketable securities	8,784	7,364
Long-term | Amortized cost | Level 2 | Commercial paper
Fair value on a recurring basis
Marketable securities	2,757
Long-term | Amortized cost | Level 2 | U.S. Treasury securities
Fair value on a recurring basis
Marketable securities	6,027	4,884
Long-term | Amortized cost | Level 2 | Asset-backed securities
Fair value on a recurring basis
Marketable securities		2,480
Recurring | Estimated Fair Value
Fair value on a recurring basis
Cash equivalents fair value	32,083	75,277
Total assets fair value	125,086	158,095
Recurring | Estimated Fair Value | Level 1 | Money market funds
Fair value on a recurring basis
Cash equivalents fair value	32,083	72,800
Recurring | Estimated Fair Value | Level 2 | U.S. Treasury securities
Fair value on a recurring basis
Cash equivalents fair value		2,477
Recurring | Short-term | Estimated Fair Value
Fair value on a recurring basis
Marketable securities	84,197	75,410
Recurring | Short-term | Estimated Fair Value | Level 2 | Commercial paper
Fair value on a recurring basis
Marketable securities	19,858	14,471
Recurring | Short-term | Estimated Fair Value | Level 2 | Corporate debt securities
Fair value on a recurring basis
Marketable securities	1,487	6,916
Recurring | Short-term | Estimated Fair Value | Level 2 | U.S. Treasury securities
Fair value on a recurring basis
Marketable securities	52,292	27,616
Recurring | Short-term | Estimated Fair Value | Level 2 | Agency securities
Fair value on a recurring basis
Marketable securities	4,493	21,355
Recurring | Short-term | Estimated Fair Value | Level 2 | Asset-backed securities
Fair value on a recurring basis
Marketable securities	6,067	5,052
Recurring | Long-term | Estimated Fair Value
Fair value on a recurring basis
Marketable securities	8,806	7,408
Recurring | Long-term | Estimated Fair Value | Level 2 | Commercial paper
Fair value on a recurring basis
Marketable securities	2,756
Recurring | Long-term | Estimated Fair Value | Level 2 | U.S. Treasury securities
Fair value on a recurring basis
Marketable securities	$ 6,050	4,920
Recurring | Long-term | Estimated Fair Value | Level 2 | Asset-backed securities
Fair value on a recurring basis
Marketable securities		$ 2,488

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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).

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

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