Short-term Investments (Tables)

9 Months Ended

Sep. 30, 2023

Investments [Abstract]

Schedule of Short-term Investments

The amortized cost, unrealized gain (loss), and estimated fair value of the Company's short-term investments consisted of the following:

	September 30, 2023
	Amortized Cost		Unrealized Gain		Unrealized Loss		Estimated Fair Value
Short-term Investments
U.S. treasury securities	$	258,048	$	—	$	(1,345)	$	256,703
U.S. agency securities	53,947		2		(37)		53,912
Commercial paper	5,482		—		—		5,482
Asset-backed securities	10,437		—		(104)		10,333
Corporate debt securities	2,972		—		(21)		2,951
Certificate of deposits	20,000		14		—		20,014
Total short-term investments	$	350,886	$	16	$	(1,507)	$	349,395

	December 31, 2022
	Amortized Cost		Unrealized Gain		Unrealized Loss		Estimated Fair Value
Short-term investments
U.S. treasury securities	$	384,951	$	—	$	(6,949)	$	378,002
U.S. agency securities	29,012		47		—		29,059
Commercial paper	28,815		—		—		28,815
Corporate debt securities	5,049		—		(67)		4,982
Total short-term investments	$	447,827	$	47	$	(7,016)	$	440,858

Schedule of Available-for-sale Securities Reconciliation

The following table summarizes the stated maturities of the Company’s short-term investments:

	September 30, 2023				December 31, 2022
	Amortized Cost		Estimated Fair Value		Amortized Cost		Estimated Fair Value
Due within one year	$	137,506	$	137,389	$	447,827	$	440,858
Due after one year through two years	213,380		212,006		—		—
Total	$	350,886	$	349,395	$	447,827	$	440,858