XML 63 R44.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Real Estate Properties - Schedule of MOB Acquisitions (Details) $ in Thousands |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Jan. 17, 2017 ft² property | Dec. 31, 2017 USD ($) ft² property | Nov. 30, 2017 ft² property | Oct. 31, 2016 ft² property | May 31, 2016 USD ($) ft² property | Feb. 29, 2016 ft² property | Jan. 31, 2015 USD ($) ft² living_unit | Dec. 31, 2017 USD ($) ft² property | Dec. 31, 2016 USD ($) ft² property | Dec. 31, 2015 USD ($) ft² property | Jul. 12, 2017 ft²
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Acquired Real Estate Leases |  | $ 791,067 |  |  |  |  |  | $ 791,067 | $ 775,935 |  |
Acquired Real Estate Lease Obligations |  | $ (136,713) |  |  |  |  |  | (136,713) | (137,351) |  |
Acquisitions funded by assumed debt |  |  |  |  |  |  |  | $ 0 | $ 0 | $ (181,433) |
MOBs | Acquisitions |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of Properties |  |  |  |  |  |  | 23 | 6 | 3 | 23 |
Square Feet (000's) | ft² |  | 630,000 |  |  |  |  | 2,170,000 | 630,000 | 390,000 | 2,170,000 |
Cash Paid plus Assumed Debt |  |  |  |  |  |  |  | $ 113,168 | $ 86,432 | $ 531,623 |
Acquired Real Estate Leases |  | $ 27,713 |  |  |  |  |  | 27,713 | 9,645 | 87,780 |
Acquired Real Estate Lease Obligations |  | $ (20) |  |  |  |  |  | (20) | (1,091) | (3,150) |
Acquisitions funded by assumed debt |  |  |  |  |  |  | $ (29,955) | 0 | 0 | (29,955) |
Premium on Assumed Debt |  |  |  |  |  |  |  | $ 0 | $ 0 | $ (1,073) |
MOBs | Kansas | Acquisitions |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of Properties | property | 1 |  |  |  |  |  |  | 1 |  |  |
Square Feet (000's) | ft² | 117,000 | 117,000 |  |  |  |  |  | 117,000 |  |  |
Cash Paid plus Assumed Debt |  |  |  |  |  |  |  | $ 15,106 |  |  |
Acquired Real Estate Leases |  | $ 6,338 |  |  |  |  |  | 6,338 |  |  |
Acquired Real Estate Lease Obligations |  | $ 0 |  |  |  |  |  | 0 |  |  |
Acquisitions funded by assumed debt |  |  |  |  |  |  |  | 0 |  |  |
Premium on Assumed Debt |  |  |  |  |  |  |  | $ 0 |  |  |
MOBs | Maryland | Acquisitions |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of Properties | property |  |  | 1 |  |  |  |  | 1 |  |  |
Square Feet (000's) | ft² |  | 59,000 |  |  |  |  |  | 59,000 |  |  | 59,000
Cash Paid plus Assumed Debt |  |  |  |  |  |  |  | $ 16,601 |  |  |
Acquired Real Estate Leases |  | $ 3,937 |  |  |  |  |  | 3,937 |  |  |
Acquired Real Estate Lease Obligations |  | $ 0 |  |  |  |  |  | 0 |  |  |
Acquisitions funded by assumed debt |  |  |  |  |  |  |  | 0 |  |  |
Premium on Assumed Debt |  |  |  |  |  |  |  | $ 0 |  |  |
MOBs | 2 States | Acquisitions |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of Properties | property |  |  |  |  |  |  |  | 2 |  |  |
Square Feet (000's) | ft² |  | 255,000 |  |  |  |  |  | 255,000 |  |  |
Cash Paid plus Assumed Debt |  |  |  |  |  |  |  | $ 38,794 |  |  |
Acquired Real Estate Leases |  | $ 7,016 |  |  |  |  |  | 7,016 |  |  |
Acquired Real Estate Lease Obligations |  | $ 0 |  |  |  |  |  | 0 |  |  |
Acquisitions funded by assumed debt |  |  |  |  |  |  |  | 0 |  |  |
Premium on Assumed Debt |  |  |  |  |  |  |  | $ 0 |  |  |
MOBs | California | Acquisitions |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of Properties | property |  |  | 1 |  |  |  |  | 1 |  |  |
Square Feet (000's) | ft² |  | 63,000 | 63,000 |  |  |  |  | 63,000 |  |  |
Cash Paid plus Assumed Debt |  |  |  |  |  |  |  | $ 26,823 |  |  |
Acquired Real Estate Leases |  | $ 5,436 |  |  |  |  |  | 5,436 |  |  |
Acquired Real Estate Lease Obligations |  | $ 0 |  |  |  |  |  | 0 |  |  |
Acquisitions funded by assumed debt |  |  |  |  |  |  |  | 0 |  |  |
Premium on Assumed Debt |  |  |  |  |  |  |  | $ 0 |  |  |
MOBs | Virginia | Acquisitions |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of Properties | property |  | 1 |  |  |  |  |  | 1 |  |  |
Square Feet (000's) | ft² |  | 136,000 |  |  |  |  |  | 136,000 |  |  |
Cash Paid plus Assumed Debt |  |  |  |  |  |  |  | $ 15,844 |  |  |
Acquired Real Estate Leases |  | $ 4,986 |  |  |  |  |  | 4,986 |  |  |
Acquired Real Estate Lease Obligations |  | $ (20) |  |  |  |  |  | (20) |  |  |
Acquisitions funded by assumed debt |  |  |  |  |  |  |  | 0 |  |  |
Premium on Assumed Debt |  |  |  |  |  |  |  | 0 |  |  |
MOBs | Minnesota |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of Properties | property |  |  |  |  |  | 1 |  |  |  |  |
Square Feet (000's) | ft² |  |  |  |  |  | 128,000 |  |  |  |  |
MOBs | Minnesota | Acquisitions |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of Properties | property |  |  |  |  |  |  |  |  | 1 |  |
Square Feet (000's) | ft² |  |  |  |  |  |  |  |  | 128,000 |  |
Cash Paid plus Assumed Debt |  |  |  |  |  |  |  |  | $ 22,700 |  |
Acquired Real Estate Leases |  |  |  |  |  |  |  |  | 5,053 |  |
Acquired Real Estate Lease Obligations |  |  |  |  |  |  |  |  | (1,091) |  |
Acquisitions funded by assumed debt |  |  |  |  |  |  |  |  | 0 |  |
Premium on Assumed Debt |  |  |  |  |  |  |  |  | $ 0 |  |
MOBs | Florida |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of Properties | property |  |  |  |  | 1 |  |  |  |  |  |
Square Feet (000's) | ft² |  |  |  |  | 166,000 |  |  |  |  |  |
Cash Paid plus Assumed Debt |  |  |  |  | $ 45,000 |  |  |  |  |  |
MOBs | Florida | Acquisitions |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of Properties | property |  |  |  |  |  |  |  |  | 1 |  |
Square Feet (000's) | ft² |  |  |  |  |  |  |  |  | 166,000 |  |
Cash Paid plus Assumed Debt |  |  |  |  |  |  |  |  | $ 45,232 |  |
Acquired Real Estate Leases |  |  |  |  |  |  |  |  | 0 |  |
Acquired Real Estate Lease Obligations |  |  |  |  |  |  |  |  | 0 |  |
Acquisitions funded by assumed debt |  |  |  |  |  |  |  |  | 0 |  |
Premium on Assumed Debt |  |  |  |  |  |  |  |  | $ 0 |  |
MOBs | Ohio |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of Properties | property |  |  |  | 1 |  |  |  |  |  |  |
Square Feet (000's) | ft² |  |  |  | 96,000 |  |  |  |  |  |  |
MOBs | Ohio | Acquisitions |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of Properties | property |  |  |  |  |  |  |  |  | 1 |  |
Square Feet (000's) | ft² |  |  |  |  |  |  |  |  | 96,000 |  |
Cash Paid plus Assumed Debt |  |  |  |  |  |  |  |  | $ 18,500 |  |
Acquired Real Estate Leases |  |  |  |  |  |  |  |  | 4,592 |  |
Acquired Real Estate Lease Obligations |  |  |  |  |  |  |  |  | 0 |  |
Acquisitions funded by assumed debt |  |  |  |  |  |  |  |  | 0 |  |
Premium on Assumed Debt |  |  |  |  |  |  |  |  | 0 |  |
MOBs | 12 States | Acquisitions |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of Properties | property |  |  |  |  |  |  |  |  |  | 23 |
Square Feet (000's) | ft² |  |  |  |  |  |  |  |  |  | 2,170,000 |
Cash Paid plus Assumed Debt |  |  |  |  |  |  |  |  |  | $ 531,623 |
Acquired Real Estate Leases |  |  |  |  |  |  |  |  |  | 87,780 |
Acquired Real Estate Lease Obligations |  |  |  |  |  |  |  |  |  | (3,150) |
Acquisitions funded by assumed debt |  |  |  |  |  |  |  |  |  | (29,955) |
Premium on Assumed Debt |  |  |  |  |  |  |  |  |  | (1,073) |
Land | MOBs | Acquisitions |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Property plant and equipment acquired |  |  |  |  |  |  |  | 25,618 | 7,845 | 50,429 |
Land | MOBs | Kansas | Acquisitions |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Property plant and equipment acquired |  |  |  |  |  |  |  | 1,522 |  |  |
Land | MOBs | Maryland | Acquisitions |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Property plant and equipment acquired |  |  |  |  |  |  |  | 6,138 |  |  |
Land | MOBs | 2 States | Acquisitions |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Property plant and equipment acquired |  |  |  |  |  |  |  | 6,738 |  |  |
Land | MOBs | California | Acquisitions |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Property plant and equipment acquired |  |  |  |  |  |  |  | 7,957 |  |  |
Land | MOBs | Virginia | Acquisitions |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Property plant and equipment acquired |  |  |  |  |  |  |  | 3,263 |  |  |
Land | MOBs | Minnesota | Acquisitions |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Property plant and equipment acquired |  |  |  |  |  |  |  |  | 4,028 |  |
Land | MOBs | Florida | Acquisitions |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Property plant and equipment acquired |  |  |  |  |  |  |  |  | 2,792 |  |
Land | MOBs | Ohio | Acquisitions |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Property plant and equipment acquired |  |  |  |  |  |  |  |  | 1,025 |  |
Land | MOBs | 12 States | Acquisitions |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Property plant and equipment acquired |  |  |  |  |  |  |  |  |  | 50,429 |
Buildings and Improvements | MOBs | Acquisitions |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Property plant and equipment acquired |  |  |  |  |  |  |  | 59,857 | 70,033 | 397,637 |
Buildings and Improvements | MOBs | Kansas | Acquisitions |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Property plant and equipment acquired |  |  |  |  |  |  |  | 7,246 |  |  |
Buildings and Improvements | MOBs | Maryland | Acquisitions |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Property plant and equipment acquired |  |  |  |  |  |  |  | 6,526 |  |  |
Buildings and Improvements | MOBs | 2 States | Acquisitions |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Property plant and equipment acquired |  |  |  |  |  |  |  | 25,040 |  |  |
Buildings and Improvements | MOBs | California | Acquisitions |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Property plant and equipment acquired |  |  |  |  |  |  |  | 13,430 |  |  |
Buildings and Improvements | MOBs | Virginia | Acquisitions |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Property plant and equipment acquired |  |  |  |  |  |  |  | $ 7,615 |  |  |
Buildings and Improvements | MOBs | Minnesota | Acquisitions |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Property plant and equipment acquired |  |  |  |  |  |  |  |  | 14,710 |  |
Buildings and Improvements | MOBs | Florida | Acquisitions |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Property plant and equipment acquired |  |  |  |  |  |  |  |  | 42,440 |  |
Buildings and Improvements | MOBs | Ohio | Acquisitions |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Property plant and equipment acquired |  |  |  |  |  |  |  |  | $ 12,883 |  |
Buildings and Improvements | MOBs | 12 States | Acquisitions |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Property plant and equipment acquired |  |  |  |  |  |  |  |  |  | $ 397,637 |

X
- Definition The amount of premium on assumed debt that an Entity assumes in acquiring a business or in consideration for an asset received in a noncash (or part noncash) acquisition. + References No definition available. + Details
Name: | snh_NoncashOrPartNoncashAcquisitionPremiumOnDebtAssumed1
Namespace Prefix: | snh_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Represents the number of properties acquired or agreed to be acquired by the entity. + References No definition available. + Details
Name: | snh_NumberOfPropertiesAcquired
Namespace Prefix: | snh_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the aggregate purchase price excluding acquisition costs of real estate properties acquired or agreed to be acquired by the entity. + References No definition available. + Details
Name: | snh_RealEstateAggregatePurchasePrice
Namespace Prefix: | snh_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents the intangible lease assets recorded as part of the real estate acquisition. + References No definition available. + Details
Name: | snh_RealEstatePropertiesAcquiredIntangibleLeaseAssets
Namespace Prefix: | snh_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represents the intangible lease liabilities recorded as part of the real estate acquisition. + References No definition available. + Details
Name: | snh_RealEstatePropertiesAcquiredIntangibleLeaseLiabilities
Namespace Prefix: | snh_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Represents the property plant and equipment assets recorded as part of the real estate acquisition. + References No definition available. + Details
Name: | snh_RealEstatePropertiesAcquiredPropertyPlantAndEquipment
Namespace Prefix: | snh_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Area of a real estate property. + References No definition available. + Details
Name: | us-gaap_AreaOfRealEstateProperty
Namespace Prefix: | us-gaap_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | instant

X
- Definition The amount of debt that an Entity assumes in acquiring a business or in consideration for an asset received in a noncash (or part noncash) acquisition. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4332-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4313-108586 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586 + Details
Name: | us-gaap_NoncashOrPartNoncashAcquisitionDebtAssumed1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_RealEstateLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=snh_MedicalOfficeBuildingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=us-gaap_SeriesOfIndividuallyImmaterialBusinessAcquisitionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=stpr_KS
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=stpr_MD
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=snh_TwoStatesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=stpr_CA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=stpr_VA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=stpr_MN
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=stpr_FL
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=stpr_OH
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=snh_TwelveStatesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_LandMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_BuildingImprovementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |