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Investments - Summary of Information Relating to Investments Measured at Fair Value for Company has Used Unobservable Inputs to Determine Fair Value (Details) - USD ($)
$ in Thousands

3 Months Ended

Mar. 31, 2025

Mar. 31, 2024

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]

Beginning balance

$ 363,883

$ 357,528

Transfers out of Level III

^[1]

(9,239)

Transfers into Level III

^[2]

6,433

Net accretion

777

1,000

Purchases

20,361

37,174

Sales/Paydowns/Return of Capital

(15,156)

(24,429)

Total realized gain (loss) included in earnings

(173)

(1,662)

Change in unrealized gain (loss) included in earnings

(2,379)

(1,152)

Ending balance

$ 367,313

$ 365,653

Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]

Gross Investment Income, Operating

Gross Investment Income, Operating

Changes in unrealized gains (losses) included in earnings related to investments still held at reporting date

$ (5,120)

$ (1,152)

First Lien Debt

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]

Beginning balance

289,957

289,295

Transfers out of Level III

^[1]

(9,239)

Transfers into Level III

^[2]

6,433

Net accretion

685

448

Purchases

19,892

33,205

Sales/Paydowns/Return of Capital

(13,204)

(22,107)

Total realized gain (loss) included in earnings

(98)

(1,241)

Change in unrealized gain (loss) included in earnings

(2,853)

427

Ending balance

294,379

297,221

Changes in unrealized gains (losses) included in earnings related to investments still held at reporting date

(5,560)

427

Second Lien Debt

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]

Beginning balance

28,996

23,232

Net accretion

13

(4)

Purchases

290

713

Sales/Paydowns/Return of Capital

0

Total realized gain (loss) included in earnings

(46)

0

Change in unrealized gain (loss) included in earnings

(529)

(2,221)

Ending balance

28,724

21,720

Changes in unrealized gains (losses) included in earnings related to investments still held at reporting date

(529)

(2,221)

Subordinated Debt

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]

Beginning balance

1,740

1,225

Net accretion

1

0

Purchases

0

459

Sales/Paydowns/Return of Capital

(26)

(459)

Total realized gain (loss) included in earnings

0

(419)

Change in unrealized gain (loss) included in earnings

25

406

Ending balance

1,740

1,212

Changes in unrealized gains (losses) included in earnings related to investments still held at reporting date

(9)

406

Equity

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]

Beginning balance

24,762

20,533

Net accretion

0

Purchases

179

2,797

Sales/Paydowns/Return of Capital

(169)

(503)

Total realized gain (loss) included in earnings

(169)

503

Change in unrealized gain (loss) included in earnings

1,277

98

Ending balance

26,218

23,428

Changes in unrealized gains (losses) included in earnings related to investments still held at reporting date

1,277

98

Collateralized Loan Obligations

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]

Beginning balance

5,193

8,968

Net accretion

78

556

Purchases

Sales/Paydowns/Return of Capital

(1,397)

(392)

Total realized gain (loss) included in earnings

(198)

(505)

Change in unrealized gain (loss) included in earnings

963

(78)

Ending balance

4,639

8,549

Changes in unrealized gains (losses) included in earnings related to investments still held at reporting date

963

(78)

Joint Ventures

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]

Beginning balance

13,015

14,275

Net accretion

0

Purchases

Sales/Paydowns/Return of Capital

(360)

(968)

Total realized gain (loss) included in earnings

0

Change in unrealized gain (loss) included in earnings

(1,274)

216

Ending balance

11,381

13,523

Changes in unrealized gains (losses) included in earnings related to investments still held at reporting date

(1,274)

216

Derivatives

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]

Beginning balance

220

Total realized gain (loss) included in earnings

0

Change in unrealized gain (loss) included in earnings

12

0

Ending balance

232

0

Changes in unrealized gains (losses) included in earnings related to investments still held at reporting date

$ 12

$ 0

[1]	Transfers out of Level III represent a transfer of $9.2 million relating to debt securities for which pricing inputs, other than their quoted prices in active markets were observable as of March 31, 2024.
[2]	Transfers into Level III represent a transfer of $6.4 million relating to debt securities for which pricing inputs, other than their quoted prices in active markets were unobservable as of March 31, 2024.

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