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v3.23.1

Notes Payable (Schedule of Long-term Debt) (Details) - USD ($) $ in Thousands | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2023 | Dec. 31, 2022 | Mar. 08, 2017
Debt Instrument [Line Items] |  |  |
Interest rate |  |  | 4.40%
Total principal amount | $ 450,000 | $ 400,000 |
Less unamortized discount and debt issuance costs | 1,570 | 1,670 |
Notes payable | 448,430 | 398,330 |
Unsecured debt |  |  |
Debt Instrument [Line Items] |  |  |
Notes payable | $ 373,430 | 373,330 |
Unsecured debt | Notes payable | Level 2 | Unsecured Notes One |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate | 4.40% |  |
Unsecured debt | $ 375,000 | 375,000 | $ 375,000
Unsecured debt | Notes payable | Level 2 | Unsecured Notes Two |  |  |
Debt Instrument [Line Items] |  |  |
Unsecured debt | $ 75,000 | $ 25,000 |
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Minimum | Unsecured debt | Notes payable | Level 2 | Unsecured Notes Two |  |  |
Debt Instrument [Line Items] |  |  |
Basis spread on variable rate | 1.125% |  |
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Maximum | Unsecured debt | Notes payable | Level 2 | Unsecured Notes Two |  |  |
Debt Instrument [Line Items] |  |  |
Basis spread on variable rate | 1.50% |  |

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