Borrowings - Holdings Credit Facility (Details) - USD ($)
$ in Thousands |
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3 Months Ended |
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Apr. 28, 2023 |
Apr. 20, 2021 |
Mar. 31, 2023 |
Mar. 31, 2022 |
Dec. 31, 2022 |
Jun. 09, 2018 |
Jun. 08, 2018 |
Nov. 05, 2014 |
| Line of Credit Facility [Line Items] |
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| Minimum asset coverage ratio |
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150.00%
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200.00%
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150.00%
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| Amortization of financing costs |
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$ 1,637
|
$ 1,692
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| Holdings Credit Facility |
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| Line of Credit Facility [Line Items] |
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| Credit facility outstanding balance |
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614,663
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$ 618,963
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| Revolving Credit Facility | Holdings Credit Facility |
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| Line of Credit Facility [Line Items] |
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| Credit facility outstanding balance |
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614,663
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$ 618,963
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| Revolving Credit Facility | Holdings Credit Facility | Credit Facility |
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| Line of Credit Facility [Line Items] |
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| Maximum borrowing capacity |
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$ 800,000
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| Available borrowing capacity |
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$ 730,000
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| Borrowing capacity, first percentage |
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25.00%
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| Borrowing capacity, second percentage |
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45.00%
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| Borrowing capacity, third percentage |
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67.50%
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| Borrowing capacity, fourth percentage |
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70.00%
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| Minimum asset coverage ratio |
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150.00%
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| Interest expense |
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$ 10,287
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2,934
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| Non-usage fee |
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|
118
|
222
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| Amortization of financing costs |
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$ 464
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$ 789
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| Weighted average interest rate |
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6.60%
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2.20%
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| Effective interest rate |
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7.00%
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2.90%
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| Average debt outstanding |
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$ 634,146
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$ 550,063
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| Revolving Credit Facility | Holdings Credit Facility, Broadly Syndicated Loans | Credit Facility | LIBOR |
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| Line of Credit Facility [Line Items] |
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| Interest rate margin |
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1.60%
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| Revolving Credit Facility | Holdings Credit Facility, Broadly Syndicated Loans | Credit Facility | SOFR | Subsequent Event |
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| Line of Credit Facility [Line Items] |
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| Interest rate margin |
1.70%
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| Revolving Credit Facility | Holdings Credit Facility, Excluding Broadly Syndicated Loans | Credit Facility | LIBOR |
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| Line of Credit Facility [Line Items] |
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| Interest rate margin |
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2.10%
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| Revolving Credit Facility | Holdings Credit Facility, Excluding Broadly Syndicated Loans | Credit Facility | SOFR | Subsequent Event |
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| Line of Credit Facility [Line Items] |
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| Interest rate margin |
2.20%
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