Financial Instruments - Schedule of Marketable Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Cash equivalents:
Cash and cash equivalents	$ 41,046	$ 35,140
Total cash equivalents measured at fair value	33,865	7,962
Marketable securities:
Amortized Cost	175,538	30,646
Gross Unrealized Gains	541	11
Gross Unrealized Losses	(17)	(3)
Total marketable securities measured at fair value	176,061	30,654
Total cash equivalents and marketable securities	209,402
Total estimated fair value of cash equivalents and marketable securities	209,926
Level 1
Cash equivalents:
Total cash equivalents measured at fair value	31,370	7,962
Marketable securities:
Total marketable securities measured at fair value	38,643	1,978
Level 2
Cash equivalents:
Total cash equivalents measured at fair value	2,495	0
Marketable securities:
Total marketable securities measured at fair value	137,418	28,676
Level 3
Cash equivalents:
Total cash equivalents measured at fair value	0	0
Marketable securities:
Total marketable securities measured at fair value	0	0
Commercial paper
Marketable securities:
Amortized Cost	61,691	18,742
Gross Unrealized Gains	137	9
Gross Unrealized Losses	(16)	0
Total marketable securities measured at fair value	61,812	18,751
Commercial paper | Level 1
Marketable securities:
Total marketable securities measured at fair value	0	0
Commercial paper | Level 2
Marketable securities:
Total marketable securities measured at fair value	61,812	18,751
Commercial paper | Level 3
Marketable securities:
Total marketable securities measured at fair value	0	0
U.S. treasury securities
Marketable securities:
Amortized Cost	38,474	1,977
Gross Unrealized Gains	169	1
Gross Unrealized Losses	0	0
Total marketable securities measured at fair value	38,643	1,978
U.S. treasury securities | Level 1
Marketable securities:
Total marketable securities measured at fair value	38,643	1,978
U.S. treasury securities | Level 2
Marketable securities:
Total marketable securities measured at fair value	0	0
U.S. treasury securities | Level 3
Marketable securities:
Total marketable securities measured at fair value	0	0
U.S. government agency securities
Marketable securities:
Amortized Cost	43,366	9,927
Gross Unrealized Gains	125	1
Gross Unrealized Losses	(1)	(3)
Total marketable securities measured at fair value	43,490	9,925
U.S. government agency securities | Level 1
Marketable securities:
Total marketable securities measured at fair value	0	0
U.S. government agency securities | Level 2
Marketable securities:
Total marketable securities measured at fair value	43,490	9,925
U.S. government agency securities | Level 3
Marketable securities:
Total marketable securities measured at fair value	0	0
Corporate debt securities
Marketable securities:
Amortized Cost	31,313
Gross Unrealized Gains	108
Gross Unrealized Losses	0
Total marketable securities measured at fair value	31,421
Corporate debt securities | Level 1
Marketable securities:
Total marketable securities measured at fair value	0
Corporate debt securities | Level 2
Marketable securities:
Total marketable securities measured at fair value	31,421
Corporate debt securities | Level 3
Marketable securities:
Total marketable securities measured at fair value	0
Yankee debt securities
Marketable securities:
Amortized Cost	694
Gross Unrealized Gains	1
Gross Unrealized Losses	0
Total marketable securities measured at fair value	695
Yankee debt securities | Level 1
Marketable securities:
Total marketable securities measured at fair value	0
Yankee debt securities | Level 2
Marketable securities:
Total marketable securities measured at fair value	695
Yankee debt securities | Level 3
Marketable securities:
Total marketable securities measured at fair value	0
Money market funds
Cash equivalents:
Cash and cash equivalents	28,379
Gross Unrealized Gains	0
Gross Unrealized Losses	0
Total cash equivalents measured at fair value	28,379	7,962
Money market funds | Level 1
Cash equivalents:
Total cash equivalents measured at fair value	28,379	7,962
Money market funds | Level 2
Cash equivalents:
Total cash equivalents measured at fair value	0	0
Money market funds | Level 3
Cash equivalents:
Total cash equivalents measured at fair value	0	$ 0
U.S. treasury securities
Cash equivalents:
Cash and cash equivalents	2,990
Gross Unrealized Gains	1
Gross Unrealized Losses	0
Total cash equivalents measured at fair value	2,991
U.S. treasury securities | Level 1
Cash equivalents:
Total cash equivalents measured at fair value	2,991
U.S. treasury securities | Level 2
Cash equivalents:
Total cash equivalents measured at fair value	0
U.S. treasury securities | Level 3
Cash equivalents:
Total cash equivalents measured at fair value	0
U.S. government agency securities
Cash equivalents:
Cash and cash equivalents	1,997
Gross Unrealized Gains	0
Gross Unrealized Losses	0
Total cash equivalents measured at fair value	1,997
U.S. government agency securities | Level 1
Cash equivalents:
Total cash equivalents measured at fair value	0
U.S. government agency securities | Level 2
Cash equivalents:
Total cash equivalents measured at fair value	1,997
U.S. government agency securities | Level 3
Cash equivalents:
Total cash equivalents measured at fair value	0
Corporate debt securities
Cash equivalents:
Cash and cash equivalents	498
Gross Unrealized Gains	0
Gross Unrealized Losses	0
Total cash equivalents measured at fair value	498
Corporate debt securities | Level 1
Cash equivalents:
Total cash equivalents measured at fair value	0
Corporate debt securities | Level 2
Cash equivalents:
Total cash equivalents measured at fair value	498
Corporate debt securities | Level 3
Cash equivalents:
Total cash equivalents measured at fair value	$ 0