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Real Estate (New Real Estate Investments) (Details) | 12 Months Ended
--- | ---
Dec. 31, 2017 USD ($) properties | Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($)
Payments to Acquire Real Estate | $ 157,214,000 | $ 359,257,000 | $ 106,315,000
Ensign Group [Member] |  |  |
Payments to Acquire Real Estate | 13,846,000 |  |
Real Estate Investments During The Period | $ 15,096,000 |  |
Real Estate Properties, Number Acquired | properties | 1 |  |
Navion Senior Solutions [Member] |  |  |
Real Estate Investments During The Period | $ 16,100,000 |  |
Real Estate Properties, Number Acquired | properties | 3 |  |
Bickford Senior Living [Member] |  |  |
Number of Real Estate Properties To Be Constructed | properties | 2 |  |
Real Estate Properties, Number Acquired | properties | 1 |  |
Acadia Healthcare [Member] |  |  |
Real Estate Properties, Number Acquired | properties | 1 |  |
Senior Living Communities [Member] |  |  |
Real Estate Properties, Number Acquired | properties | 1 |  |
Village Concepts [Member] |  |  |
Real Estate Properties, Number Acquired | properties | 1 |  |
Discovery Senior Living [Member] |  |  |
Real Estate Properties, Number Acquired | properties | 1 |  |
Prestige Senior Living [Member] |  |  |
Payments to Acquire Real Estate | $ 26,200,000 |  |
Real Estate Investments During The Period | $ 26,200,000 |  |
Real Estate Properties, Number Acquired | properties | 1 |  |
Real Estate Acquisition [Member] |  |  |
Real Estate Investments During The Period | $ 191,231,000 |  |
Real Estate Acquisition [Member] | Navion Senior Solutions [Member] |  |  |
Real Estate Investments During The Period | $ 8,200,000 |  |
Real Estate Properties, Number Acquired | properties | 1 |  |
Real Estate Acquisition [Member] | Bickford Senior Living [Member] |  |  |
Real Estate Investments During The Period | $ 10,400,000 |  |
Real Estate Acquisition [Member] | Acadia Healthcare [Member] |  |  |
Real Estate Investments During The Period | 4,840,000 |  |
Real Estate Acquisition [Member] | Senior Living Communities [Member] |  |  |
Real Estate Investments During The Period | 6,830,000 |  |
Real Estate Acquisition [Member] | Village Concepts [Member] |  |  |
Real Estate Investments During The Period | 7,100,000 |  |
Real Estate Acquisition [Member] | Discovery Senior Living [Member] |  |  |
Real Estate Investments During The Period | $ 34,600,000 |  |

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- Definition Real Estate Investments During The Period + References No definition available. + Details
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- Definition This item refers to the number of properties acquired during the period. + References No definition available. + Details
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- Definition The cash outflow from the acquisition of a piece of land, anything permanently fixed to it, including buildings, structures on it and so forth; includes real estate intended to generate income for the owner; excludes real estate acquired for use by the owner. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585 + Details
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