Investment Valuations and Fair Value Measurements - Summary of Major Security Type of Fair Valuations (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value	$ 162,036	$ 157,292
Cash Equivalents
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value	9,074	4,676
Debt
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value	152,747	118,178
Equity
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value	215
Short-term Investments
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value		34,438
Fair Value, Inputs, Level 1 [Member]
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value	9,074	39,114
Fair Value, Inputs, Level 1 [Member] | Cash Equivalents
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value	9,074	4,676
Fair Value, Inputs, Level 1 [Member] | Debt
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value	0	0
Fair Value, Inputs, Level 1 [Member] | Equity
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value	0
Fair Value, Inputs, Level 1 [Member] | Short-term Investments
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value		34,438
Fair Value, Inputs, Level 2 [Member]
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value	0	0
Fair Value, Inputs, Level 2 [Member] | Cash Equivalents
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value	0	0
Fair Value, Inputs, Level 2 [Member] | Debt
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value	0	0
Fair Value, Inputs, Level 2 [Member] | Equity
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value	0
Fair Value, Inputs, Level 2 [Member] | Short-term Investments
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value		0
Fair Value, Inputs, Level 3 [Member]
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value	152,962	118,178
Fair Value, Inputs, Level 3 [Member] | Cash Equivalents
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value	0	0
Fair Value, Inputs, Level 3 [Member] | Debt
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value	152,747	118,178
Fair Value, Inputs, Level 3 [Member] | Equity
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value	$ 215
Fair Value, Inputs, Level 3 [Member] | Short-term Investments
Investment Valuations And Fair Value Measurements [Line Items]
Investment, Fair Value		$ 0