XML 60 R43.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Real Estate Properties - Schedule of Senior Living Community Acquisitions (Details) $ in Thousands | 1 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2018 USD ($) living_unit property | Feb. 28, 2018 USD ($) living_unit property | Jan. 31, 2018 USD ($) living_unit property | Dec. 31, 2016 USD ($) living_unit community property | Jun. 30, 2016 USD ($) living_unit property | May 31, 2016 USD ($) living_unit property | Dec. 31, 2018 USD ($) living_unit property | Dec. 31, 2017 USD ($) living_unit property | Dec. 31, 2016 USD ($) living_unit property
Real Estate [Line Items] |  |  |  |  |  |  |  |  |
Real Estate Investment Property, Net |  |  |  |  |  |  | $ 6,341,908 | $ 6,370,286 |
Acquired Real Estate Leases |  |  |  |  |  |  | 691,219 | 791,067 |
Assumed Debt |  |  |  |  |  |  | $ (44,386) | $ 0 | $ 0
Senior Living Communities | 4 States |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |
Number of Properties | property |  |  |  |  | 7 |  |  |  |
Senior Living Communities | Illinois |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |
Number of Properties | community |  |  |  | 2 |  |  |  |  |
Acquisitions | Senior Living Communities |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |
Number of Properties | property |  |  |  |  |  |  | 4 |  | 10
Units | living_unit |  |  |  | 709 |  |  | 366 |  | 709
Cash Paid plus Assumed Debt |  |  |  |  |  |  | $ 66,350 |  | $ 139,494
Acquired Real Estate Leases |  |  |  | $ 3,723 |  |  | 11,489 |  | 3,723
Assumed Debt |  |  |  |  |  |  | (33,336) |  | 0
Premium on Assumed Debt |  |  |  |  |  |  | (1,845) |  | $ 0
Acquisitions | Senior Living Communities | Tennessee | Managed |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |
Number of Properties | property | 2 |  | 1 |  |  |  |  |  |
Units | living_unit | 151 |  | 88 |  |  |  |  |  |
Cash Paid plus Assumed Debt | $ 23,860 |  | $ 19,868 |  |  |  |  |  |
Acquired Real Estate Leases | 3,843 |  | 3,195 |  |  |  |  |  |
Assumed Debt | (16,588) |  | 0 |  |  |  |  |  |
Premium on Assumed Debt | (486) |  | 0 |  |  |  |  |  |
Acquisitions | Senior Living Communities | Arizona | Managed |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |
Number of Properties | property |  | 1 |  |  |  |  |  |  |
Units | living_unit |  | 127 |  |  |  |  |  |  |
Cash Paid plus Assumed Debt |  | $ 22,622 |  |  |  |  |  |  |
Acquired Real Estate Leases |  | 4,451 |  |  |  |  |  |  |
Assumed Debt |  | (16,748) |  |  |  |  |  |  |
Premium on Assumed Debt |  | (1,359) |  |  |  |  |  |  |
Acquisitions | Senior Living Communities | 2 States | Managed |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |
Number of Properties | property |  |  |  |  |  |  |  | 2 |
Units | living_unit |  |  |  |  |  |  |  | 229 |
Cash Paid plus Assumed Debt |  |  |  |  |  |  |  | $ 39,457 |
Acquired Real Estate Leases |  |  |  |  |  |  |  | 7,774 |
Assumed Debt |  |  |  |  |  |  |  | 0 |
Premium on Assumed Debt |  |  |  |  |  |  |  | 0 |
Acquisitions | Senior Living Communities | Georgia | Managed |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |
Number of Properties | property |  |  |  |  |  | 1 |  |  |
Units | living_unit |  |  |  |  |  | 38 |  |  |
Cash Paid plus Assumed Debt |  |  |  |  |  | $ 8,400 |  |  |
Acquired Real Estate Leases |  |  |  |  |  | 1,400 |  |  |
Assumed Debt |  |  |  |  |  | 0 |  |  |
Premium on Assumed Debt |  |  |  |  |  | 0 |  |  |
Acquisitions | Senior Living Communities | 4 States | Leased |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |
Number of Properties | property |  |  |  |  | 7 |  |  |  |
Units | living_unit |  |  |  |  | 545 |  |  |  |
Cash Paid plus Assumed Debt |  |  |  |  | $ 112,493 |  |  |  |
Acquired Real Estate Leases |  |  |  |  | 0 |  |  |  |
Assumed Debt |  |  |  |  | 0 |  |  |  |
Premium on Assumed Debt |  |  |  |  | 0 |  |  |  |
Acquisitions | Senior Living Communities | Illinois | Leased |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |
Number of Properties | property |  |  |  | 2 |  |  |  |  |
Units | living_unit |  |  |  | 126 |  |  |  |  | 126
Cash Paid plus Assumed Debt |  |  |  | $ 18,601 |  |  |  |  |
Acquired Real Estate Leases |  |  |  | 2,323 |  |  |  |  | $ 2,323
Assumed Debt |  |  |  | 0 |  |  |  |  |
Premium on Assumed Debt |  |  |  | 0 |  |  |  |  |
Land |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |
Real Estate Investment Property, Net |  |  |  |  |  |  | 844,567 | 824,879 |
Land | Acquisitions | Senior Living Communities |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |
Real Estate Investment Property, Net |  |  |  | 13,226 |  |  | 3,562 |  | 13,226
Land | Acquisitions | Senior Living Communities | Tennessee | Managed |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |
Real Estate Investment Property, Net | 965 |  | 580 |  |  |  |  |  |
Land | Acquisitions | Senior Living Communities | Arizona | Managed |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |
Real Estate Investment Property, Net |  | 2,017 |  |  |  |  |  |  |
Land | Acquisitions | Senior Living Communities | 2 States | Managed |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |
Real Estate Investment Property, Net |  |  |  |  |  |  |  | 4,055 |
Land | Acquisitions | Senior Living Communities | Georgia | Managed |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |
Real Estate Investment Property, Net |  |  |  |  |  | 327 |  |  |
Land | Acquisitions | Senior Living Communities | 4 States | Leased |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |
Real Estate Investment Property, Net |  |  |  |  | 11,085 |  |  |  |
Land | Acquisitions | Senior Living Communities | Illinois | Leased |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |
Real Estate Investment Property, Net |  |  |  | 1,814 |  |  |  |  | 1,814
Buildings and Improvements |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |
Real Estate Investment Property, Net |  |  |  |  |  |  | 7,031,733 | 6,999,884 |
Buildings and Improvements | Acquisitions | Senior Living Communities |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |
Real Estate Investment Property, Net |  |  |  | 114,512 |  |  | 49,917 |  | 114,512
Buildings and Improvements | Acquisitions | Senior Living Communities | Tennessee | Managed |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |
Real Estate Investment Property, Net | 17,910 |  | 14,884 |  |  |  |  |  |
Buildings and Improvements | Acquisitions | Senior Living Communities | Arizona | Managed |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |
Real Estate Investment Property, Net |  | 17,123 |  |  |  |  |  |  |
Buildings and Improvements | Acquisitions | Senior Living Communities | 2 States | Managed |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |
Real Estate Investment Property, Net |  |  |  |  |  |  |  | 26,424 |
Buildings and Improvements | Acquisitions | Senior Living Communities | Georgia | Managed |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |
Real Estate Investment Property, Net |  |  |  |  |  | 6,195 |  |  |
Buildings and Improvements | Acquisitions | Senior Living Communities | 4 States | Leased |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |
Real Estate Investment Property, Net |  |  |  |  | 94,940 |  |  |  |
Buildings and Improvements | Acquisitions | Senior Living Communities | Illinois | Leased |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |
Real Estate Investment Property, Net |  |  |  | 13,377 |  |  |  |  | 13,377
FF&E | Acquisitions | Senior Living Communities |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |
Real Estate Investment Property, Net |  |  |  | 8,033 |  |  | $ 3,227 |  | 8,033
FF&E | Acquisitions | Senior Living Communities | Tennessee | Managed |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |
Real Estate Investment Property, Net | $ 1,628 |  | $ 1,209 |  |  |  |  |  |
FF&E | Acquisitions | Senior Living Communities | Arizona | Managed |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |
Real Estate Investment Property, Net |  | $ 390 |  |  |  |  |  |  |
FF&E | Acquisitions | Senior Living Communities | 2 States | Managed |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |
Real Estate Investment Property, Net |  |  |  |  |  |  |  | $ 1,204 |
FF&E | Acquisitions | Senior Living Communities | Georgia | Managed |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |
Real Estate Investment Property, Net |  |  |  |  |  | $ 478 |  |  |
FF&E | Acquisitions | Senior Living Communities | 4 States | Leased |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |
Real Estate Investment Property, Net |  |  |  |  | $ 6,468 |  |  |  |
FF&E | Acquisitions | Senior Living Communities | Illinois | Leased |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |
Real Estate Investment Property, Net |  |  |  | $ 1,087 |  |  |  |  | $ 1,087

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 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://fasb.org/us-gaap/role/ref/legacyRef -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 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -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://fasb.org/us-gaap/role/ref/legacyRef -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 + Details
Name: | us-gaap_NoncashOrPartNoncashAcquisitionDebtAssumed1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The number of units in a real estate property owned as of the balance sheet date. + References No definition available. + Details
Name: | us-gaap_NumberOfUnitsInRealEstateProperty
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of real estate investment property, net of accumulated depreciation, which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(d)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_RealEstateInvestmentPropertyNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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: | srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=snh_SeniorLivingCommunityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=snh_FourStatesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_IL
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_TN
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LeaseArrangementTypeAxis=snh_NonLeasingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_AZ
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_GA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LeaseArrangementTypeAxis=snh_LeasingMember
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_BuildingAndBuildingImprovementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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