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Fair Value Measurement - Summary of Reconciliation of Level 3 Assets (Details) - Level 3 - USD ($) $ in Thousands | 6 Months Ended
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Jun. 30, 2026 | Jun. 30, 2025
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Beginning Balance |  | $ 153,055 | $ 192,891
Net Transfers In/Out |  | 6,474 | (21,860)
Purchases | [1] | 44,562 | 30,534
Net Realized Gain (Loss) |  | (220) | 192
Net Change in Unrealized Appreciation (Depreciation) | [2] | (3,550) | (1,924)
Sales and Settlements | [1] | (29,955) | (37,828)
Net Amortization of Premium/ Discount |  | 340 | 252
Ending Balance |  | 170,706 | 162,257
Debt |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Beginning Balance |  | 121,618 | 159,954
Net Transfers In/Out |  | 6,474 | (21,860)
Purchases | [1] | 36,147 | 24,138
Net Realized Gain (Loss) |  | (221) | 281
Net Change in Unrealized Appreciation (Depreciation) | [2] | 2,022 | (2,039)
Sales and Settlements | [1] | (26,900) | (36,849)
Net Amortization of Premium/ Discount |  | 340 | 252
Ending Balance |  | 139,480 | 123,877
Equity/Other |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Beginning Balance |  | 31,437 | 32,937
Net Transfers In/Out |  |  | 0
Purchases | [1] | 8,415 | 6,396
Net Realized Gain (Loss) |  | 1 | (89)
Net Change in Unrealized Appreciation (Depreciation) | [2] | (5,572) | 115
Sales and Settlements | [1] | (3,055) | (979)
Ending Balance |  | $ 31,226 | $ 38,380
[1] | Purchases may include new deals, additional fundings (inclusive of those on revolving credit facilities), refinancings, capitalized PIK income, and securities received in corporate actions and restructurings. Sales and Settlements may include scheduled principal payments, prepayments, sales and repayments (inclusive of those on revolving credit facilities), and securities delivered in corporate actions and restructuring of investments.
[2] | The net change in unrealized depreciation relating to Level 3 assets still held at June 30, 2026 totaled $(3,855) consisting of the following: $1,717 related to debt investments and $(5,572) related to equity/other. The net change in unrealized depreciation relating to Level 3 assets still held at June 30, 2025 totaled $(5,206) consisting of the following: $(5,321) related to debt investments and $115 relating to equity/other.

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- Definition Fair value measurement with unobservable inputs reconciliation recurring basis asset net change in unrealized appreciation (depreciation). + References No definition available. + Details
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- Definition Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3). + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 101 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-101 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-3 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 102 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-102 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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