Fair Value Measurement - Assets and Liabilities Measured on a Recurring Basis (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Financial assets:
Total financial assets	$ 389,390	$ 466,078
Level 1
Financial assets:
Total financial assets	94,172	231,900
Level 2
Financial assets:
Total financial assets	$ 295,218	$ 234,178
Derivative, average remaining maturity	7 months	8 months
Level 3
Financial assets:
Total financial assets	$ 0	$ 0
Cash, cash equivalents and restricted cash
Financial assets:
Total financial assets	94,172	231,900
Cash, cash equivalents and restricted cash | Level 1
Financial assets:
Total financial assets	94,172	231,900
Cash, cash equivalents and restricted cash | Level 2
Financial assets:
Total financial assets	0	0
Cash, cash equivalents and restricted cash | Level 3
Financial assets:
Total financial assets	0	0
U.S. agency security
Financial assets:
Total financial assets	4,948
U.S. agency security | Level 1
Financial assets:
Total financial assets	0
U.S. agency security | Level 2
Financial assets:
Total financial assets	4,948
U.S. agency security | Level 3
Financial assets:
Total financial assets	0
Corporate bond
Financial assets:
Total financial assets	104,080	21,820
Corporate bond | Level 1
Financial assets:
Total financial assets	0	0
Corporate bond | Level 2
Financial assets:
Total financial assets	104,080	21,820
Corporate bond | Level 3
Financial assets:
Total financial assets	0	0
Commercial paper
Financial assets:
Total financial assets	125,187	206,724
Commercial paper | Level 1
Financial assets:
Total financial assets	0	0
Commercial paper | Level 2
Financial assets:
Total financial assets	125,187	206,724
Commercial paper | Level 3
Financial assets:
Total financial assets	0	0
Treasury bill
Financial assets:
Total financial assets	12,282	2,494
Treasury bill | Level 1
Financial assets:
Total financial assets	0	0
Treasury bill | Level 2
Financial assets:
Total financial assets	12,282	2,494
Treasury bill | Level 3
Financial assets:
Total financial assets	0	0
Treasury bond
Financial assets:
Total financial assets	42,220
Treasury bond | Level 1
Financial assets:
Total financial assets	0
Treasury bond | Level 2
Financial assets:
Total financial assets	42,220
Treasury bond | Level 3
Financial assets:
Total financial assets	0
Yankee bond
Financial assets:
Total financial assets	6,501
Yankee bond | Level 1
Financial assets:
Total financial assets	0
Yankee bond | Level 2
Financial assets:
Total financial assets	6,501
Yankee bond | Level 3
Financial assets:
Total financial assets	$ 0
Certificates of deposit
Financial assets:
Total financial assets		3,140
Certificates of deposit | Level 1
Financial assets:
Total financial assets		0
Certificates of deposit | Level 2
Financial assets:
Total financial assets		3,140
Certificates of deposit | Level 3
Financial assets:
Total financial assets		$ 0