Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Commitments And Contingencies [Line Items]
Outstanding refunded commitments	$ 10.4	$ 21.4
Total lease expense	0.6	0.5	$ 0.5
Right of use asset	$ 5.3	$ 2.1
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other Assets	Other Assets
Lease liability	$ 5.4	$ 2.3
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]	Accounts Payable and Other Accrued Liabilities	Accounts Payable and Other Accrued Liabilities
San Diego Office
Commitments And Contingencies [Line Items]
Lease commencement period	Mar. 10, 2023
Lease expiration period	Jan. 31, 2026
Remaining lease term	2 years 1 month 6 days
Discount rate		7.64%
Phoenix Office
Commitments And Contingencies [Line Items]
Lease commencement period	Jul. 10, 2021
Lease extension date	May 31, 2031
Lease expiration period	Oct. 31, 2023
Remaining lease term	7 years 4 months 24 days
Discount rate	8.66%