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Related Person Transactions - Five Star (Details) $ in Thousands | 1 Months Ended | 12 Months Ended | 55 Months Ended
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Dec. 31, 2015 USD ($) employee community property trustee agreement shares | Aug. 31, 2015 USD ($) item | Jul. 31, 2015 USD ($) item | May. 31, 2015 USD ($) community item | Feb. 28, 2015 USD ($) item | Dec. 31, 2014 USD ($) community | Oct. 31, 2014 USD ($) community item | Jul. 31, 2014 community | Jun. 30, 2014 USD ($) community item | Jan. 31, 2014 USD ($) item | Dec. 31, 2013 USD ($) item | Nov. 30, 2013 community | Aug. 31, 2013 USD ($) item | Oct. 31, 2012 community | Aug. 31, 2012 community | May. 31, 2011 community | Dec. 31, 2015 USD ($) employee community property period trustee agreement item shares | Dec. 31, 2014 USD ($) community | Dec. 31, 2013 USD ($) community | Dec. 31, 2015 USD ($) employee community property trustee agreement shares
Related person transactions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payment for land parcel adjacent to a senior living community leased to Five Star |  |  |  |  | $ 490 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Management fees as a percentage of gross revenues | 3.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.00% |  |  | 3.00%
Incentive fee payable | $ 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0 |  |  | $ 0
Number of employees | employee | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  | 0
Number of agreements with RMR to provide management services | agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |
Number of Managing Trustees also serving as officer of related party | trustee | 1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1 |  |  | 1
Number of entities to which RMR provides management services | item |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 |  |  |
Senior Living Communities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related person transactions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of communities | community |  |  |  | 1 |  |  |  |  |  |  |  |  |  |  |  |  | 19 |  |  |
Number of communities excluded from pooling agreements | community |  |  |  | 14 |  |  |  |  |  |  |  |  |  |  |  |  | 1 |  |  |
Number of properties acquired or agreed to be acquired | community |  |  |  | 37 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of pre-existing management agreements terminated | community |  |  |  | 14 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of living units | item |  |  |  | 838 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Senior Living Communities | Wisconsin |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related person transactions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price |  |  |  |  |  | $ 47,430 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of properties acquired or agreed to be acquired | community |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Senior Living Communities | New York |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related person transactions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of living units | community | 310 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 310 |  |  | 310
Senior Living Communities | TRS | Georgia |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related person transactions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price |  |  |  | $ 9,750 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of properties acquired or agreed to be acquired | community |  |  |  | 1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of private pay independent living units | item |  |  |  | 40 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Five Star |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related person transactions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership in former subsidiary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.00% |  |  |
Investment in common shares | shares | 4,235,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,235,000 |  |  | 4,235,000
Percentage of total shares outstanding | 8.60% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 8.60% |  |  | 8.60%
Maximum percentage of any class of equity shares that can be acquired without approval | 9.80% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 9.80% |  |  | 9.80%
Minimum percentage of ownership of lessee's voting stock above which the entity has the option to cancel all its rights | 9.80% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 9.80% |  |  | 9.80%
Number of real estate properties leased | community | 177 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 177 |  |  | 177
Minimum annual rent receivable from Five Star | $ 191,927 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 191,927 |  |  | $ 191,927
Total rental income recognized |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 196,919 | $ 196,269 | $ 203,724 |
Rents receivable | 17,466 |  |  |  |  | $ 17,310 |  |  |  |  |  |  |  |  |  |  | 17,466 | 17,310 |  | 17,466
Real estate improvements purchased |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 21,444 | 25,804 | 27,208 |
Increase or decrease in annual lease rent payable | $ 1,734 |  |  |  | 39 | $ 2,066 |  |  |  |  | $ 2,177 |  |  |  |  |  | $ 1,734 | 2,066 | 2,177 | $ 1,734
Number of communities sold | community |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 11 |  |  |
Management fees as a percentage of gross revenues | 3.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.00% |  |  | 3.00%
Number of consecutive period during which the entity must not receive the minimum return for the property management agreement to be subject to the pooling agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 years |  |  |
Property management agreement expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 10,728 | $ 9,765 | $ 9,229 |
Number of properties acquired, referred to as managed properties | community |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 60 |  |  |
Five Star | Skilled Nursing Facilities | Missouri |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related person transactions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase or decrease in annual lease rent payable |  |  |  |  |  |  |  |  |  |  |  |  | $ (255) |  |  |  |  |  |  |
Number of units within the community that was sold | item |  |  |  |  |  |  |  |  |  |  |  |  | 112 |  |  |  |  |  |  |
Sale price of properties under agreement to be sold |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,550 |  |  |  |  |  |  |
Five Star | Senior Living Communities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related person transactions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of real estate properties leased | property | 10 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10 |  |  | 10
Increase or decrease in annual lease rent payable | $ (2) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ (2) |  |  | $ (2)
Sale price of properties under agreement to be sold | $ 21 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of communities managed | community |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 60 | 46 | 44 |
Management fees as a percentage of gross revenues | 3.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.00% |  |  | 3.00%
Incentive fee as percentage of the annual net operating income after the entity realizes an annual return equal to 8% of invested capital | 35.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 35.00% |  |  | 35.00%
Annual return as a percentage of invested surplus specified as a base for determining incentive fee | 8.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 8.00% |  |  | 8.00%
Number of consecutive renewal terms of agreement | period |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |
Renewal period |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 15 years |  |  |
Number of combination or pooling agreements | agreement | 4 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4 |  |  | 4
Number of properties acquired or agreed to be acquired | property |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 55
Number of separate management agreements entered for communities acquired | agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 14 |  |  |
Number of properties acquired, referred to as managed properties | property |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 65 |  |  |
Five Star | Senior Living Communities | Texas |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related person transactions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase or decrease in annual lease rent payable |  |  |  |  |  |  |  |  |  | $ (210) |  |  |  |  |  |  |  |  |  |
Number of units within the community that was sold | item |  |  |  |  |  |  |  |  |  | 36 |  |  |  |  |  |  |  |  |  |
Sale price of properties under agreement to be sold |  |  |  |  |  |  |  |  |  | $ 2,400 |  |  |  |  |  |  |  |  |  |
Five Star | Senior Living Communities | Wisconsin |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related person transactions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase or decrease in annual lease rent payable |  | $ (85) |  |  |  |  |  |  | $ (452) |  |  |  |  |  |  |  |  |  |  |
Number of communities sold | community |  |  |  |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |
Number of units within the community that was sold | item |  | 63 |  |  |  |  |  |  | 156 |  |  |  |  |  |  |  |  |  |  |
Sale price of properties under agreement to be sold |  | $ 850 |  |  |  |  |  |  | $ 4,500 |  |  |  |  |  |  |  |  |  |  |
Five Star | Senior Living Communities | Virginia |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related person transactions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase or decrease in annual lease rent payable |  |  |  |  |  |  | $ (285) |  |  |  |  |  |  |  |  |  |  |  |  |
Number of units within the community that was sold | item |  |  |  |  |  |  | 70 |  |  |  |  |  |  |  |  |  |  |  |  |
Sale price of properties under agreement to be sold |  |  |  |  |  |  | $ 2,850 |  |  |  |  |  |  |  |  |  |  |  |  |
Five Star | Senior Living Communities | Arizona |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related person transactions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase or decrease in annual lease rent payable |  |  |  |  |  |  | $ (590) |  |  |  |  |  |  |  |  |  |  |  |  |
Number of communities sold | community |  |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |  |  |
Number of units within the community that was sold | item |  |  |  |  |  |  | 177 |  |  |  |  |  |  |  |  |  |  |  |  |
Sale price of properties under agreement to be sold |  |  |  |  |  |  | $ 5,900 |  |  |  |  |  |  |  |  |  |  |  |  |
Five Star | Senior Living Communities | Pennsylvania |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related person transactions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase or decrease in annual lease rent payable |  |  |  |  | $ (23) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of units within the community that was sold | item |  |  |  |  | 120 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale price of properties under agreement to be sold |  |  |  |  | $ 250 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Five Star | Senior Living Communities | Iowa |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related person transactions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase or decrease in annual lease rent payable |  |  | $ (16) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of units within the community that was sold | item |  |  | 12 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale price of properties under agreement to be sold |  |  | $ 155 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Five Star | Senior Living Communities | New York |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related person transactions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Management fees as a percentage of gross revenues | 5.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.00% |  |  | 5.00%
Incentive fee payable | $ 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0 |  |  | $ 0
Five Star | Rehabilitation Hospitals |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related person transactions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase or decrease in annual lease rent payable |  |  |  |  |  |  |  |  |  |  | $ (9,500) |  |  |  |  |  |  |  | $ (9,500) |
Number of communities sold | item |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |
Sale price of properties under agreement to be sold |  |  |  |  |  |  |  |  |  |  | $ 90,000 |  |  |  |  |  |  |  |  |
D&R Yonkers LLC | Senior Living Communities | New York |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related person transactions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of consecutive renewal terms of agreement | period |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 9 |  |  |
Renewal period |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5 years |  |  |
Minimum annual rent payable to entity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 3,098 |  |  |
Sublease rent revenue |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 3,038 | $ 2,949 | $ 2,863 |
First AL Pooling Agreement | Five Star | Senior Living Communities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related person transactions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of communities | community |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20 |  |  |  |
Second AL Pooling Agreement | Five Star |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related person transactions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of communities | community |  |  |  |  |  |  |  | 19 |  |  |  |  |  |  |  |  |  |  |  |
Second AL Pooling Agreement | Five Star | Senior Living Communities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related person transactions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of communities | community |  |  |  |  |  |  |  |  |  |  |  |  |  | 19 |  |  |  |  |  |
Third AL Pooling Agreement | Five Star | Senior Living Communities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related person transactions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of communities | community |  |  |  |  |  |  |  |  |  |  |  | 3 |  |  |  |  |  |  |  |
IL Pooling Agreement | Five Star | Senior Living Communities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related person transactions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of communities | community |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |

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- Definition Represents the number of separate management agreements entered for communities acquired, upon termination of a pre-existing combined management agreement. + References No definition available. + Details
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- Definition Represents the number of units within the community that was sold during the period. + References No definition available. + Details
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- Definition Represents the annual rent the lessee is obligated to pay on an operating lease. + References No definition available. + Details
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- Definition This element represents the aggregate purchase price excluding closing costs, of real estate properties acquired by the entity during the period. + References No definition available. + Details
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- Definition This element represents the aggregate sales price excluding closing costs, of real estate properties sold by the entity during the period. + References No definition available. + Details
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- Definition Represents the amount of improvements to real estate properties made by lessees and purchased by the entity. + References No definition available. + Details
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- Definition Represents the number of persons employed by a related party of the entity. + References No definition available. + Details
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- Definition Represents the incentive fee payable to related parties under the business management agreement. + References No definition available. + Details
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- Definition Expenses recognized during the period resulting from property management transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party during the period. + References No definition available. + Details
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- Definition Represents the annual return as a percentage of the entity's invested surplus used to determine the incentive fee payable to related parties. + References No definition available. + Details
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- Definition Represents the incentive fee payable to related parties under property management agreement expressed as a percentage of the annual net operating income after the entity realizes an annual return equal to specified percentage of its invested capital. + References No definition available. + Details
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- Definition Represents the management fees payable to related parties under property management agreement expressed as a percentage of gross revenues. + References No definition available. + Details
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- Definition Represents the number of consecutive renewal terms of agreement that the entity has the option to renew. + References No definition available. + Details
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- Definition Represents the number of years for which the entity has the option to renew the agreement. + References No definition available. + Details
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- Definition Represents the number of consecutive period during which the entity must not receive the minimum return for the property management agreement to be subject to the pooling agreement. + References No definition available. + Details
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- Definition Represents rents receivable at the balance sheet date. + References No definition available. + Details
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- Definition Represents the maximum percentage of the equity shares of the entity which any single person or group can acquire without obtaining approval. + References No definition available. + Details
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- Definition Aggregate amount of receivables to be collected from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth, at the financial statement date. which are usually due after one year (or one business cycle). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.11) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(k)(1)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 + Details
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- Definition Balance held at close of period in number of shares. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-12C.Column B) -URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611225-123010 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 6 -Subparagraph (SX 210.12-14.Column B) -URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611322-123010 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-12.Column B) -URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611133-123010 + Details
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- Definition The number of units in a real estate property owned as of the balance sheet date. + References No definition available. + Details
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- Definition The total amount of revenue recognized for the period from operating leases, including minimum lease revenue, contingent revenue, percentage revenue and sublease revenue. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=7501430&loc=d3e39896-112707 + Details
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- Definition The amount of revenue recognized for the period under subleasing arrangements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 55 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6584307&loc=d3e41620-112719 + Details
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- Definition The cash outflow from the acquisition of real estate intended to generate income for the owner; excludes land 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=56944662&loc=d3e3213-108585 + Details
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- Definition The number of units (items of property) under operating lease arrangements. + References No definition available. + Details
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- 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
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