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Intangibles - Narrative (Details) $ in Thousands | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Dec. 31, 2020 USD ($) property | Dec. 31, 2019 USD ($) | Mar. 31, 2020 property | Jan. 31, 2020 property | Oct. 31, 2019 property | Jan. 01, 2019 USD ($)
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Property count | property |  |  |  | 15 |  |
Weighted average remaining amortization period in years | 5 years | 5 years |  |  |  |
Weighted average remaining amortization period in years | 8 years | 7 years |  |  |  |
Finite-lived intangible assets, net | $ | $ 519,917 | $ 260,204 |  |  |  |
Reclassification of intangible liabilities | $ | 144,199 | $ 74,991 |  |  |  |
Accounting Standards Update 2016-12 |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Finite-lived intangible assets, net | $ |  |  |  |  |  | $ 39,000
Reclassification of intangible liabilities | $ |  |  |  |  |  | $ 6,000
Brookedale MTCA |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Finite-lived intangible assets acquired | $ | 352,000 |  |  |  |  |
Intangible liabilities acquired | $ | $ 83,000 |  |  |  |  |
Weighted average remaining amortization period in years | 7 years |  |  |  |  |
Weighted average remaining amortization period in years | 9 years |  |  |  |  |
CCRC JV Investment | Brookedale MTCA |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Property count | property |  |  |  | 15 |  |
Other Non-Reporting Segment | Assets leased to others |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Property count | property |  |  | 1 |  |  |
Other Non-Reporting Segment | Assets leased to others | Brookedale MTCA |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Property count | property |  |  |  | 13 |  |
Other Non-Reporting Segment | CCRC JV Investment | Assets leased to others |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Property count | property |  |  | 15 |  | 15 |
Other Non-Reporting Segment | CCRC JV Investment | Assets leased to others | Brookedale MTCA |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Property count | property | 13 |  | 13 | 13 |  |

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