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Summary of Significant Accounting Policies (Details) (USD $) | 9 Months Ended |  |  |  |
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Sep. 30, 2014 | Sep. 30, 2014 Buildings and Improvements [Member] | Sep. 30, 2014 Resident lease intangibles [Member] | Sep. 30, 2014 Carrying Value, Fair Value Disclosure [Member] | Dec. 31, 2013 Carrying Value, Fair Value Disclosure [Member] | Sep. 30, 2014 Estimate of Fair Value, Fair Value Disclosure [Member] | Dec. 31, 2013 Estimate of Fair Value, Fair Value Disclosure [Member]
Revenue Recognition [Abstract] |  |  |  |  |  |  |
Term of residency agreements- minimum | 30 days |  |  |  |  |  |
Term of residency agreements - maximum | 1 year |  |  |  |  |  |
Fair Value of Financial Instruments [Line Items] |  |  |  |  |  |  |
Long-term Debt, Fair Value |  |  |  | $ 3,700,000,000 | $ 2,300,000,000 | $ 3,700,000,000 | $ 2,300,000,000
Capital and Financing Lease obligations |  |  |  | $ 2,700,000,000 | $ 300,000,000 |  |
Estimated useful life of property, plant and equipment [Abstract] |  |  |  |  |  |  |
Estimated Useful Life (in years) |  | 40 years | 12 months |  |  |  |

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- Definition Amount of capital lease obligation, assumed at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4845-128472 + Details
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- Definition The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. + References No definition available. + Details
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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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