XML 65 R45.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Related Person Transactions - RMR LLC Management Fees and Reimbursements (Details) $ in Thousands |  | 1 Months Ended | 5 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Dec. 23, 2013 installment | Sep. 30, 2015 shares | Mar. 31, 2013 shares | Jun. 05, 2015 shares | Dec. 31, 2015 USD ($) shares | Dec. 31, 2014 USD ($) shares | Dec. 31, 2013 USD ($) shares
Related person transactions |  |  |  |  |  |  |
Portion of shares issued in payment of an incentive management fee (as a percent) | 33.33% |  |  |  |  |  |
Property management and construction supervision fees |  |  |  |  | $ 10,342 | $ 8,259 | $ 6,568
Property management and construction supervision fees paid |  |  |  |  | 7,021 | 5,289 | 4,705
RMR LLC |  |  |  |  |  |  |
Related person transactions |  |  |  |  |  |  |
Business management fees incurred |  |  |  |  | 34,949 | 30,794 | 27,013
Incentive fees payable |  |  |  |  | 0 | $ 0 | 0
Recognized amortization of the liability |  |  |  |  | 1,743 |  |
Common shares issued for the incentive fees | shares |  |  | 21,968 | 68,983 |  | 123,462 |
Repurchase of common shares (in shares) | shares |  | 13,113 |  |  |  |  |
Accrual for RMR LLC employee share grants and internal audit costs |  |  |  |  | $ 1,340 | $ 1,835 | $ 1,877
RMR LLC | MOBs |  |  |  |  |  |  |
Related person transactions |  |  |  |  |  |  |
Base business management fee payable in cash (as a percent) |  |  |  |  | 3.00% |  |
Construction supervision fees payable under property management agreement as a percentage of construction costs |  |  |  |  | 5.00% |  |
Restricted shares | RMR LLC |  |  |  |  |  |  |
Related person transactions |  |  |  |  |  |  |
Number of shares granted under the award plan | shares |  |  |  |  | 84,000,000 | 81,700,000 | 82,600,000
Aggregate value of awards granted during the period |  |  |  |  | $ 1,321 | $ 1,750 | $ 1,888
Portion of the awards granted that vested on grant date (as a percent) |  |  |  |  | 2.00% |  |
Portion of the awards granted which will vest on each of the next four anniversaries of the grant date |  |  |  |  | 2.00% |  |
Restricted shares | RMR Inc | RMR LLC |  |  |  |  |  |  |
Related person transactions |  |  |  |  |  |  |
Award vesting period |  |  |  |  | 4 years |  |
Amended Agreement | RMR LLC |  |  |  |  |  |  |
Related person transactions |  |  |  |  |  |  |
Incentive management fee payable (as a percent) | 12.00% |  |  |  |  |  |
Period of measurement | 3 years |  |  |  |  |  |
Shorter period applicable in the case of calculation of the incentive management fee for 2014 | 1 year |  |  |  |  |  |
Period applicable in the case of calculation of the incentive management fee for 2015 | 2 years |  |  |  |  |  |
Base business management fee payable in cash (as a percent) | 90.00% |  |  |  |  |  |
Base business management fee payable in common shares (as a percent) | 10.00% |  |  |  |  |  |
Portion of remaining shares to be vested in equal annual installments (as a percent) | 66.66% |  |  |  |  |  |
Number of equal annual installments for vesting of common shares | installment | 2 |  |  |  |  |  |

X
- Definition Represents the expense amount accrued for employee share grants and internal audit costs to RMR LLC employees. + References No definition available. + Details
Name: | snh_AccrualForEmployeeShareGrants
Namespace Prefix: | snh_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents the measurement periods ending with the year for which the incentive management fee is being calculated, with periods applicable in the case of calculation of the incentive management fee. + References No definition available. + Details
Name: | snh_PeriodApplicableInCaseOfCalculationOfIncentiveManagementFeeFor2015
Namespace Prefix: | snh_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the measurement periods ending with the year for which the incentive management fee is being calculated. + References No definition available. + Details
Name: | snh_PeriodOfMeasurement
Namespace Prefix: | snh_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the amount of amortization of the liability recorded during the period. + References No definition available. + Details
Name: | snh_RelatedPartyTransactionAmortizationOfLiability
Namespace Prefix: | snh_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents the business management fees incurred pursuant to business management agreement with related parties. + References No definition available. + Details
Name: | snh_RelatedPartyTransactionBusinessManagementFees
Namespace Prefix: | snh_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents the common shares issued for incentive fees during the period. + References No definition available. + Details
Name: | snh_RelatedPartyTransactionCommonStockIssuedForIncentiveFee
Namespace Prefix: | snh_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the incentive fee payable in a related party transaction. + References No definition available. + Details
Name: | snh_RelatedPartyTransactionIncentiveFeePayable
Namespace Prefix: | snh_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Represents the number of equal annual installments for vesting of common shares. + References No definition available. + Details
Name: | snh_RelatedPartyTransactionNumberOfEqualAnnualInstallmentsForVestingOfCommonShares
Namespace Prefix: | snh_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the incentive management fee payable as a percentage of the product of the entity's equity market capitalization and its share price appreciation plus dividends. + References No definition available. + Details
Name: | snh_RelatedPartyTransactionPercentageForLimitationAndAdjustmentsOfIncentiveManagementFeePayable
Namespace Prefix: | snh_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the percentage of base business management fees payable in cash. + References No definition available. + Details
Name: | snh_RelatedPartyTransactionPercentageOfBaseBusinessManagementFeePayableInCash
Namespace Prefix: | snh_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the percentage of base business management fees payable in common shares. + References No definition available. + Details
Name: | snh_RelatedPartyTransactionPercentageOfBaseBusinessManagementFeePayableInCommonShares
Namespace Prefix: | snh_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the portion of remaining shares to be vested in equal annual installments. + References No definition available. + Details
Name: | snh_RelatedPartyTransactionPercentageOfRemainingSharesToBeVestedInEqualAnnualInstallments
Namespace Prefix: | snh_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the portion of shares issued in payment of an incentive management fee. + References No definition available. + Details
Name: | snh_RelatedPartyTransactionPercentageOfSharesIssuedInPaymentOfIncentiveManagementFees
Namespace Prefix: | snh_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the construction supervision fees payable to related parties under property management agreement expressed as a percentage of construction costs. + References No definition available. + Details
Name: | snh_RelatedPartyTransactionPropertyManagementAgreementConstructionSupervisionFeesAsPercentageOfConstructionCosts
Namespace Prefix: | snh_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the property management and construction supervision fees incurred pursuant to business and property management agreements with related parties. + References No definition available. + Details
Name: | snh_RelatedPartyTransactionPropertyManagementAndConstructionSupervisionFees
Namespace Prefix: | snh_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents the property management and construction supervision fees paid to related parties. + References No definition available. + Details
Name: | snh_RelatedPartyTransactionPropertyManagementAndConstructionSupervisionFeesPaid
Namespace Prefix: | snh_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Represents the portion of awards granted which will vest on the grant date. + References No definition available. + Details
Name: | snh_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRightsPercentVestedOnGrantDate
Namespace Prefix: | snh_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the portion of awards granted which will vest on each of the next four anniversaries of the grant date. + References No definition available. + Details
Name: | snh_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRightsToBeVestedOnEachOfNextFourAnniversaries
Namespace Prefix: | snh_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the aggregate fair value of the equity instruments other than options granted during the period. + References No definition available. + Details
Name: | snh_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodFairValue
Namespace Prefix: | snh_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents the measurement periods ending with the year for which the incentive management fee is being calculated, with shorter periods applicable in the case of calculation of the incentive management fee. + References No definition available. + Details
Name: | snh_ShorterPeriodApplicableInCaseOfCalculationOfIncentiveManagementFeeFor2014
Namespace Prefix: | snh_
Data Type: | xbrli:durationItemType
Balance Type: | na
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_RelatedPartyTransactionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
Name: | us-gaap_StockRepurchasedDuringPeriodShares
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=snh_ReitManagementAndResearchLLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_PlanNameAxis=snh_RestrictedSharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=snh_ReitManagementAndResearchIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TransactionTypeAxis=snh_AmendedAndRestateBusinessManagementAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |