Borrowings - Unsecured Notes (Details) - USD ($)
$ in Thousands |
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3 Months Ended |
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Jan. 27, 2023 |
Jul. 14, 2022 |
Jun. 15, 2022 |
Jan. 29, 2021 |
Apr. 30, 2019 |
Jul. 05, 2018 |
Jan. 30, 2018 |
Jun. 30, 2017 |
Mar. 31, 2023 |
Mar. 31, 2022 |
Dec. 31, 2022 |
| Debt Instrument [Line Items] |
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| Face amount |
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$ 300,000
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| Repayment of Unsecured Notes |
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90,000
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$ 0
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| Amortization of financing costs |
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1,637
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1,692
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| Unsecured Notes outstanding balance |
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441,500
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$ 531,500
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| Unsecured Notes |
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| Debt Instrument [Line Items] |
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| Interest expense |
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5,667
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5,958
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| Amortization of financing costs |
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$ 209
|
$ 199
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| Weighted average interest rate |
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4.80%
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4.70%
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| Effective interest rate |
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5.00%
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4.80%
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| Average debt outstanding |
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$ 471,500
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$ 511,500
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| Unsecured Notes | Minimum |
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| Debt Instrument [Line Items] |
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| Face amount |
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$ 150,000
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| 2017A Unsecured Notes |
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| Debt Instrument [Line Items] |
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| Repayment of Unsecured Notes |
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$ 55,000
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| 2017A Unsecured Notes | Unsecured Notes |
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| Debt Instrument [Line Items] |
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| Face amount |
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$ 55,000
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| Term of debt |
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5 years
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| Stated interest rate |
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4.76%
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| 2018A Unsecured Notes | Unsecured Notes |
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| Debt Instrument [Line Items] |
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| Face amount |
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$ 90,000
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| Term of debt |
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5 years
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| Repayment of Unsecured Notes |
$ 90,000
|
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| Stated interest rate |
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4.87%
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| 2018B Unsecured Notes | Unsecured Notes |
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| Debt Instrument [Line Items] |
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| Face amount |
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$ 50,000
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| Term of debt |
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5 years
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| Stated interest rate |
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5.36%
|
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| 2019A Unsecured Notes | Unsecured Notes |
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| Debt Instrument [Line Items] |
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| Face amount |
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$ 116,500
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| Term of debt |
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5 years
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| Stated interest rate |
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5.494%
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| 2021A Unsecured Notes | Unsecured Notes |
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| Debt Instrument [Line Items] |
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| Face amount |
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$ 200,000
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| Term of debt |
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5 years
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| Stated interest rate |
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3.875%
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| 2022A Unsecured Notes | Unsecured Notes |
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| Debt Instrument [Line Items] |
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| Face amount |
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$ 75,000
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| Term of debt |
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5 years
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| Stated interest rate |
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5.90%
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