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Financial Instruments and Fair Values - Narrative (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Interest rate swap agreements liability | $ 2,143,000 |  | $ 2,143,000 |  | $ 85,000
Property in Receivership |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Long-term debt, fair value | 177,700,000 |  | 177,700,000 |  |
Level 3 | Property in Receivership |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Long-term debt, fair value | 159,800,000 |  | 159,800,000 |  |
Designated as Hedging Instrument | Cash Flow Hedging |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Aggregate notional value | 680,386,000 |  | 680,386,000 |  |
Net gain to be reclassified into interest expense within the next 12 months |  |  | 1,000,000.0 |  |
Interest Rate Swap and Interest Rate Cap |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Interest rate swap agreements liability | 2,100,000 |  | 2,100,000 |  |
Interest Rate Swap and Interest Rate Cap | Designated as Hedging Instrument | Cash Flow Hedging |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Interest rate swap agreements liability |  |  |  |  | 100,000
Aggregate notional value | 680,400,000 |  | 680,400,000 |  | 573,200,000
Interest rate swaps and caps included in prepaid expenses and other assets | 5,700,000 |  | 5,700,000 |  | $ 11,800,000
Net unrealized gains on valuation of interest rate swap agreements | $ (11,800,000) | $ 7,300,000 | $ (3,700,000) | $ 10,600,000 |

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