Borrowings - Summary of SBA-guaranteed Debentures (Details)
$ in Thousands |
Mar. 31, 2023
USD ($)
|
| Debt Instrument [Line Items] |
|
| Debenture Amount |
$ 300,000
|
| $37,500 SBA-guaranteed Debentures, Issued March 2015 | SBIC I |
|
| Debt Instrument [Line Items] |
|
| Debenture Amount |
$ 37,500
|
| $37,500 SBA-guaranteed Debentures, Issued March 2015 | SBIC I | SBA-guaranteed debentures |
|
| Debt Instrument [Line Items] |
|
| Interest Rate |
2.517%
|
| SBA Annual Charge |
0.355%
|
| $37,500 SBA-guaranteed Debentures, Issued September 2015 | SBIC I |
|
| Debt Instrument [Line Items] |
|
| Debenture Amount |
$ 37,500
|
| $37,500 SBA-guaranteed Debentures, Issued September 2015 | SBIC I | SBA-guaranteed debentures |
|
| Debt Instrument [Line Items] |
|
| Interest Rate |
2.829%
|
| SBA Annual Charge |
0.355%
|
| $28,795 SBA-guaranteed Debentures, Issued September 2015 | SBIC I |
|
| Debt Instrument [Line Items] |
|
| Debenture Amount |
$ 28,795
|
| $28,795 SBA-guaranteed Debentures, Issued September 2015 | SBIC I | SBA-guaranteed debentures |
|
| Debt Instrument [Line Items] |
|
| Interest Rate |
2.829%
|
| SBA Annual Charge |
0.742%
|
| $13,950 SBA-guaranteed debentures, Issued March 2016 | SBIC I |
|
| Debt Instrument [Line Items] |
|
| Debenture Amount |
$ 13,950
|
| $13,950 SBA-guaranteed debentures, Issued March 2016 | SBIC I | SBA-guaranteed debentures |
|
| Debt Instrument [Line Items] |
|
| Interest Rate |
2.507%
|
| SBA Annual Charge |
0.742%
|
| $4,000 SBA-guaranteed debentures, Issued September 2016 | SBIC I |
|
| Debt Instrument [Line Items] |
|
| Debenture Amount |
$ 4,000
|
| $4,000 SBA-guaranteed debentures, Issued September 2016 | SBIC I | SBA-guaranteed debentures |
|
| Debt Instrument [Line Items] |
|
| Interest Rate |
2.051%
|
| SBA Annual Charge |
0.742%
|
| $13,000 SBA-guaranteed debentures, Issued September 2017 | SBIC I |
|
| Debt Instrument [Line Items] |
|
| Debenture Amount |
$ 13,000
|
| $13,000 SBA-guaranteed debentures, Issued September 2017 | SBIC I | SBA-guaranteed debentures |
|
| Debt Instrument [Line Items] |
|
| Interest Rate |
2.518%
|
| SBA Annual Charge |
0.742%
|
| $15,255 SBA-guaranteed debentures, Issued March 2018 | SBIC I |
|
| Debt Instrument [Line Items] |
|
| Debenture Amount |
$ 15,255
|
| $15,255 SBA-guaranteed debentures, Issued March 2018 | SBIC I | SBA-guaranteed debentures |
|
| Debt Instrument [Line Items] |
|
| Interest Rate |
3.187%
|
| SBA Annual Charge |
0.742%
|
| $15,000 SBA-guaranteed debentures, Issued September 2018 | SBIC II |
|
| Debt Instrument [Line Items] |
|
| Debenture Amount |
$ 15,000
|
| $15,000 SBA-guaranteed debentures, Issued September 2018 | SBIC II | SBA-guaranteed debentures |
|
| Debt Instrument [Line Items] |
|
| Interest Rate |
3.548%
|
| SBA Annual Charge |
0.222%
|
| $19,000 SBA-guaranteed debentures, Issued September 2019 | SBIC II |
|
| Debt Instrument [Line Items] |
|
| Debenture Amount |
$ 19,000
|
| $19,000 SBA-guaranteed debentures, Issued September 2019 | SBIC II | SBA-guaranteed debentures |
|
| Debt Instrument [Line Items] |
|
| Interest Rate |
2.283%
|
| SBA Annual Charge |
0.222%
|
| $41,000 SBA-guaranteed debentures, Issued March 2020 | SBIC II |
|
| Debt Instrument [Line Items] |
|
| Debenture Amount |
$ 41,000
|
| $41,000 SBA-guaranteed debentures, Issued March 2020 | SBIC II | SBA-guaranteed debentures |
|
| Debt Instrument [Line Items] |
|
| Interest Rate |
2.078%
|
| SBA Annual Charge |
0.222%
|
| $24,000 SBA-guaranteed debentures, Issued March 2020 | SBIC II |
|
| Debt Instrument [Line Items] |
|
| Debenture Amount |
$ 24,000
|
| $24,000 SBA-guaranteed debentures, Issued March 2020 | SBIC II | SBA-guaranteed debentures |
|
| Debt Instrument [Line Items] |
|
| Interest Rate |
2.078%
|
| SBA Annual Charge |
0.275%
|
| $51,000 SBA-guaranteed debentures, Issued September 2020 | SBIC II |
|
| Debt Instrument [Line Items] |
|
| Debenture Amount |
$ 51,000
|
| $51,000 SBA-guaranteed debentures, Issued September 2020 | SBIC II | SBA-guaranteed debentures |
|
| Debt Instrument [Line Items] |
|
| Interest Rate |
1.034%
|
| SBA Annual Charge |
0.275%
|