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Commitments and Contingencies - Narrative (Details) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 USD ($) community property developmentRight Lease | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Nov. 01, 2023 defendant
Commitments and Contingencies Disclosure [Line Items] |  |  |  |
Loss contingency, other defendants | defendant |  |  |  | 14
Proceeds from legal recoveries | $ 0 | $ 0 |  |
Lease Obligations [Abstract] |  |  |  |
Number of real estate properties | community | 306 |  |  |
Total | $ 479,799,000 |  |  |
Lease liability | $ 153,333,000 | 133,220,000 |  |
Number of office leases | Lease | 13 |  |  |
Right of use lease assets | $ 126,572,000 | 106,146,000 |  |
Operating lease, expense | 16,298,000 | 16,342,000 | $ 15,667,000 |
Finance lease, right-of-use asset | 28,082,000 | 28,528,000 |  |
Lease liability | $ 19,949,000 | $ 20,012,000 |  |
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] | Right of use lease assets | Right of use lease assets |  |
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration] | Lease liabilities | Lease liabilities |  |
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] | Right of use lease assets | Right of use lease assets |  |
Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration] | Lease liabilities | Lease liabilities |  |
Properties on Land Subject to Land Leases |  |  |  |
Lease Obligations [Abstract] |  |  |  |
Number of real estate properties | community | 7 |  |  |
Number of commercial properties owned | property | 2 |  |  |
Number of development rights owned | developmentRight | 1 |  |  |
Assets Held under Operating Leases |  |  |  |
Lease Obligations [Abstract] |  |  |  |
Number of real estate properties | community | 6 |  |  |
Ground Lease |  |  |  |
Lease Obligations [Abstract] |  |  |  |
Total | $ 155,600,000 |  |  |
Lease liability | $ 25,675,000 |  |  |
Assets Held under Finance Leases |  |  |  |
Lease Obligations [Abstract] |  |  |  |
Number of real estate properties | community | 1 |  |  |
Number of finance leases for parking garages adjacent to communities | Lease | 4 |  |  |
Avalon at Assembly Row |  |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |  |
Proceeds from legal recoveries |  |  | $ 6,000,000 |

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