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Supplemental Disclosure of Cash Flow Information - Additional Information (Details) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 USD ($) community | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Aug. 31, 2020 community
Related Party Transaction [Line Items] |  |  |  |
Net cash paid for termination of operating leases | $ 0 | $ 0 | $ 33,596 |
Net cash paid for termination of capital and financing leases |  |  | 12,500 |
Number of communities owned | community |  |  |  | 16
Ownership Percentage | 50.00% |  |  |
Proceeds from notes receivable | $ 5,419 | $ 34,109 | 1,580 |
Joint Venture |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Payments to acquire interest in joint venture | $ 13,300 |  |  |
Number of communities owned | community | 2 |  |  |
Distributions to partners | $ 6,300 |  |  |
Proceeds from notes receivable | 3,100 |  |  |
Promissory Note | Joint Venture |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Notes receivable | $ 6,600 |  |  |
Lease termination and modification, net |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Net cash paid for termination of operating leases |  |  | $ 54,600 |

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