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Fair Value Measurements - Financial assets measured at fair value (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
Fair Value Measurements
Amortized Cost	$ 219,953	$ 83,854
Gross Unrealized Losses	(407)	(113)
Gross Unrealized Gains	17	3
Total fair value of financial assets	219,563	83,744
Money market funds
Fair Value Measurements
Amortized Cost	25,592	18,994
Total fair value of financial assets	25,592	18,994
Commercial paper
Fair Value Measurements
Amortized Cost	9,970
Gross Unrealized Gains	5
Total fair value of financial assets	9,975
Cash equivalents
Fair Value Measurements
Amortized Cost	35,562	18,994
Gross Unrealized Gains	5
Total fair value of financial assets	35,567	18,994
U.S. government bonds
Fair Value Measurements
Amortized Cost	43,433	11,820
Gross Unrealized Losses	(164)	(57)
Total fair value of financial assets	43,269	11,763
U.S. government agency bonds
Fair Value Measurements
Amortized Cost	33,914	1,801
Gross Unrealized Losses	(77)	(7)
Gross Unrealized Gains	9
Total fair value of financial assets	33,846	1,794
Corporate debt securities
Fair Value Measurements
Amortized Cost	107,044	51,239
Gross Unrealized Losses	(166)	(49)
Gross Unrealized Gains	3	3
Total fair value of financial assets	106,881	51,193
Short-term investments
Fair Value Measurements
Amortized Cost	184,391	64,860
Gross Unrealized Losses	(407)	(113)
Gross Unrealized Gains	12	3
Total fair value of financial assets	$ 183,996	$ 64,750

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