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v3.23.3

Borrowings - Unsecured Notes (Details) - USD ($) $ in Thousands |  |  |  |  |  |  |  |  |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 27, 2023 | Jan. 27, 2023 | Jul. 14, 2022 | Jun. 15, 2022 | Jan. 29, 2021 | Apr. 30, 2019 | Jul. 05, 2018 | Jan. 30, 2018 | Jun. 30, 2017 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount |  |  |  |  |  |  |  |  |  | $ 300,000 |  | $ 300,000 |  |
Repayment of Unsecured Notes |  |  |  |  |  |  |  |  |  |  |  | 140,000 | $ 55,000 |
Amortization of financing costs |  |  |  |  |  |  |  |  |  |  |  | 5,002 | 5,082 |
Unsecured Notes outstanding balance |  |  |  |  |  |  |  |  |  | 391,500 |  | 391,500 |  | $ 531,500
Unsecured Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  |  | 4,644 | $ 6,512 | 15,602 | 18,624 |
Amortization of financing costs |  |  |  |  |  |  |  |  |  | $ 143 | $ 202 | $ 524 | $ 607 |
Weighted average interest rate |  |  |  |  |  |  |  |  |  | 4.70% | 4.80% | 4.80% | 4.70% |
Effective interest rate |  |  |  |  |  |  |  |  |  | 4.90% | 5.00% | 5.00% | 4.90% |
Average debt outstanding |  |  |  |  |  |  |  |  |  | $ 391,500 | $ 539,870 | $ 433,661 | $ 525,456 |
Unsecured Notes | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount |  |  |  |  |  |  |  |  |  | $ 150,000 |  | $ 150,000 |  |
2017A Unsecured Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayment of Unsecured Notes |  |  | $ 55,000 |  |  |  |  |  |  |  |  |  |  |
2017A Unsecured Notes | Unsecured Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount |  |  |  |  |  |  |  |  | $ 55,000 |  |  |  |  |
Term of debt |  |  |  |  |  |  |  |  | 5 years |  |  |  |  |
Stated interest rate |  |  |  |  |  |  |  |  | 4.76% |  |  |  |  |
2018A Unsecured Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayment of Unsecured Notes |  | $ 90,000 |  |  |  |  |  |  |  |  |  |  |  |
2018A Unsecured Notes | Unsecured Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount |  |  |  |  |  |  |  | $ 90,000 |  |  |  |  |  |
Term of debt |  |  |  |  |  |  |  | 5 years |  |  |  |  |  |
Stated interest rate |  |  |  |  |  |  |  | 4.87% |  |  |  |  |  |
2018B Unsecured Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayment of Unsecured Notes | $ 50,000 |  |  |  |  |  |  |  |  |  |  |  |  |
2018B Unsecured Notes | Unsecured Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount |  |  |  |  |  |  | $ 50,000 |  |  |  |  |  |  |
Term of debt |  |  |  |  |  |  | 5 years |  |  |  |  |  |  |
Stated interest rate |  |  |  |  |  |  | 5.36% |  |  |  |  |  |  |
2019A Unsecured Notes | Unsecured Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount |  |  |  |  |  | $ 116,500 |  |  |  |  |  |  |  |
Term of debt |  |  |  |  |  | 5 years |  |  |  |  |  |  |  |
Stated interest rate |  |  |  |  |  | 5.494% |  |  |  |  |  |  |  |
2021A Unsecured Notes | Unsecured Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount |  |  |  |  | $ 200,000 |  |  |  |  |  |  |  |  |
Term of debt |  |  |  |  | 5 years |  |  |  |  |  |  |  |  |
Stated interest rate |  |  |  |  | 3.875% |  |  |  |  |  |  |  |  |
2022A Unsecured Notes | Unsecured Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount |  |  |  | $ 75,000 |  |  |  |  |  |  |  |  |  |
Term of debt |  |  |  | 5 years |  |  |  |  |  |  |  |  |  |
Stated interest rate |  |  |  | 5.90% |  |  |  |  |  |  |  |  |  |

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