Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2023

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

The following table summarizes the financial assets (cash, cash equivalents, restricted cash and investments) measured at fair value on a recurring basis:

	September 30, 2023
(in thousands)	Level 1		Level 2		Level 3		Total
Financial assets:
Cash, cash equivalents and restricted cash	$	46,397	$	—	$	—	$	46,397
Corporate bonds	—		32,396		—		32,396
Commercial paper	—		93,916		—		93,916
Treasury bills	—		80,213		—		80,213
Treasury bonds	—		85,569		—		85,569
Yankee bonds	—		—		—		—
Total financial assets	$	46,397	$	292,094	$	—	$	338,491

	December 31, 2022
(in thousands)	Level 1		Level 2		Level 3		Total
Financial assets:
Cash, cash equivalents and restricted cash	$	94,172	$	—	$	—	$	94,172
U.S. agency securities	—		4,948		—		4,948
Corporate bonds	—		104,080		—		104,080
Commercial paper	—		125,187		—		125,187
Treasury bills	—		12,282		—		12,282
Treasury bonds	—		42,220		—		42,220
Yankee bonds	—		6,501		—		6,501
Total financial assets	$	94,172	$	295,218	$	—	$	389,390