Fair Value - Financial Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Assets
Total assets	$ 470,588	$ 601,076
Liabilities
Total liabilities	4,218	4,376
Money market funds
Assets
Money market funds	470,588	601,076
Embedded EPP derivatives
Liabilities
Derivatives	4,218	4,376
Level 1
Assets
Total assets	470,588	601,076
Liabilities
Total liabilities	0	0
Level 1 | Money market funds
Assets
Money market funds	470,588	601,076
Level 1 | Embedded EPP derivatives
Liabilities
Derivatives	0	0
Level 2
Assets
Total assets	0	0
Liabilities
Total liabilities	0	0
Level 2 | Money market funds
Assets
Money market funds	0	0
Level 2 | Embedded EPP derivatives
Liabilities
Derivatives	0	0
Level 3
Assets
Total assets	0	0
Liabilities
Total liabilities	4,218	4,376
Level 3 | Money market funds
Assets
Money market funds	0	0
Level 3 | Embedded EPP derivatives
Liabilities
Derivatives	$ 4,218	$ 4,376