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Revenue - Additional Information (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019 | Dec. 31, 2019
Disaggregation of Revenue [Line Items] |  |  |  |  |
Monthly resident fees | $ 34.7 |  | $ 34.7 |  | $ 38.9
Revenue recognized |  |  | 55.2 | $ 72.7 |
Facility expense, allowance for credit loss | 3.6 | $ 3.6 | 7.6 | $ 7.1 |
Deferred Revenue and Credits |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Contract with customer, liability | 154.7 |  | 154.7 |  | $ 72.5
CARES Act | Accelerated and Advance Payment Program |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Amount received from Accelerated and Advance Payment Program | $ 85.0 |  | $ 85.0 |  |

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