Investment Valuations and Fair Value Measurements - Summary of Major Security Type of Fair Valuations (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value	$ 158,941	$ 157,292
Cash Equivalents
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value	8,759	4,676
Debt
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value	150,147	118,178
Equity
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value	35
Short- term investments
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value		34,438
Level 1
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value	8,759	39,114
Level 1 | Cash Equivalents
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value	8,759	4,676
Level 1 | Debt
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value	0	0
Level 1 | Equity
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value	0
Level 1 | Short- term investments
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value		34,438
Level 2
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value	0	0
Level 2 | Cash Equivalents
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value	0	0
Level 2 | Debt
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value	0	0
Level 2 | Equity
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value	0
Level 2 | Short- term investments
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value		0
Level 3
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value	150,182	118,178
Level 3 | Cash Equivalents
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value	0	0
Level 3 | Debt
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value	150,147	118,178
Level 3 | Equity
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value	$ 35
Level 3 | Short- term investments
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value		$ 0