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Related Person Transactions - copy (Details) $ in Thousands |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended | 33 Months Ended |  |
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Oct. 27, 2015 USD ($) room property | Jul. 23, 2015 USD ($) state room property | Jun. 05, 2015 USD ($) agreement shares | Jun. 04, 2015 shares | Jun. 01, 2015 USD ($) property | Oct. 31, 2015 USD ($) | Jul. 31, 2015 item | Jun. 30, 2015 USD ($) | Sep. 30, 2015 USD ($) item property shares | Sep. 30, 2014 USD ($) | Sep. 30, 2015 USD ($) Vote Option item property shares | Sep. 30, 2015 USD ($) item property shares | Sep. 30, 2014 USD ($) shares | Dec. 31, 2014 USD ($) | Sep. 30, 2015 USD ($) item property shares | Apr. 28, 2015 USD ($) | Dec. 31, 2007
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of management agreements or leases | item |  |  |  |  |  |  |  |  | 14 |  | 14 | 14 |  |  | 14 |  |
Rental income |  |  |  |  |  |  |  |  | $ 73,747 | $ 63,837 |  | $ 207,561 | $ 190,959 |  |  |  |
Minimum Annual Rent |  |  |  |  |  |  |  |  | 253,919 |  | $ 253,919 | 253,919 |  |  | $ 253,919 |  |
Capital improvements from leased facilities, funded |  |  |  |  |  |  |  |  |  |  |  | (172,627) | (159,027) |  |  |  |
Increase (decrease) in minimum annual rent |  |  |  |  |  |  |  |  |  |  |  | 14,365 |  |  |  |  |
Deferred percentage rent revenue |  |  |  |  |  |  |  |  | 0 | 557 |  | 0 | 2,129 |  |  |  |
Adjustments included in rental income necessary to record rent on the straight line basis |  |  |  |  |  |  |  |  | $ 3,752 | 553 |  | $ 5,807 | 1,659 |  |  |  |
Proceeds received from the VDOT in connection with the eminent domain taking |  |  |  |  |  |  |  |  |  |  |  |  | 6,178 |  |  |  |
Number of Sites | property |  |  |  |  |  |  |  |  | 193 |  | 193 | 193 |  |  | 193 |  |
Gain on sale of real estate |  |  |  |  |  |  |  |  |  |  |  | $ 11,015 | 130 |  |  |  |
Purchase price excluding closing cost |  |  |  |  |  |  |  |  | $ 477,883 |  | $ 477,883 | 477,883 |  |  | $ 477,883 |  |
Accruals for unpaid amount |  |  |  |  |  |  |  |  | 46,862 |  | 46,862 | 46,862 |  | $ 40,253 | 46,862 |  |
Amount owed for capital expenditure reimbursements |  |  |  |  |  |  |  |  | 24,306 |  | $ 24,306 | 24,306 |  | 8,658 | $ 24,306 |  |
Earnings (losses) recognized related to equity investments |  |  |  |  |  |  |  |  | $ (24) | 38 |  | $ 71 | 66 |  |  |  |
Sonesta ES Suites |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount expected to be provided for renovation for acquisitions made |  | $ 45,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sonesta agreements |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of real estate properties leased or managed | property |  |  |  |  |  |  |  |  | 31 |  | 31 | 31 |  |  | 31 |  |
Management agreement fees and expenses |  |  |  |  |  |  |  |  | $ 5,742 | 4,722 |  | $ 16,143 | 13,052 |  |  |  |
Procurement and construction supervision fees |  |  |  |  |  |  |  |  | 496 | 1,053 |  | 1,172 | 2,803 |  |  |  |
Purchase price excluding closing cost |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 750 |
Amount expected to be provided for renovation for acquisitions made |  |  |  |  |  |  |  |  |  |  |  | 45,000 |  |  |  |  |
RMR Inc |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount of investment acquired |  |  | $ 55,922 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of investment |  |  | 129,722 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Initial other liabilities |  |  | $ 72,658 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment at carrying value, including transaction costs |  |  |  |  |  |  |  |  | 132,296 |  | $ 132,296 | 132,296 |  |  | $ 132,296 |  |
Straight line discount amortization period |  |  | 20 years |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortization of other liabilities to reduce business and property management fees |  |  |  |  |  |  |  |  | 911 |  |  | 1,142 |  |  |  |  |
TA Prior Leases |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount of percentage rent recognized under the prior agreement and incorporated in the new agreement |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,902 |  |  |
Deferred rent due in December 2022 |  |  |  |  |  |  |  |  | $ 107,085 |  | $ 107,085 | $ 107,085 |  |  | $ 107,085 |  |
TA New Leases |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of renewal options available | Option |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |  |
Term of renewal option |  |  |  |  |  |  |  |  |  |  |  | 15 years |  |  |  |  |
Percentage of non-fuel revenue over threshold amounts |  |  |  |  |  |  |  |  | 3.00% |  | 3.00% | 3.00% |  |  | 3.00% |  |
Increase (decrease) in minimum annual rent |  |  |  |  |  |  |  |  |  |  | $ 24,027 |  |  |  |  |  |
Number of Sites | property |  |  |  |  |  |  |  |  | 153 |  | 153 | 153 |  |  | 153 |  |
TA No. 1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum Annual Rent |  |  |  |  |  |  |  |  | $ 48,295 |  | $ 48,295 | $ 48,295 |  |  | $ 48,295 |  |
Number of Sites | property |  |  |  |  |  |  |  |  | 39 |  | 39 | 39 |  |  | 39 |  |
TA No. 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum Annual Rent |  |  |  |  |  |  |  |  | $ 46,765 |  | $ 46,765 | $ 46,765 |  |  | $ 46,765 |  |
Number of Sites | property |  |  |  |  |  |  |  |  | 38 |  | 38 | 38 |  |  | 38 |  |
TA No. 3 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum Annual Rent |  |  |  |  |  |  |  |  | $ 49,613 |  | $ 49,613 | $ 49,613 |  |  | $ 49,613 |  |
Number of Sites | property |  |  |  |  |  |  |  |  | 38 |  | 38 | 38 |  |  | 38 |  |
TA No. 4 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum Annual Rent |  |  |  |  |  |  |  |  | $ 46,297 |  | $ 46,297 | $ 46,297 |  |  | $ 46,297 |  |
Number of Sites | property |  |  |  |  |  |  |  |  | 38 |  | 38 | 38 |  |  | 38 |  |
TA No. 5 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum Annual Rent |  |  |  |  |  |  |  |  | $ 62,949 |  | $ 62,949 | $ 62,949 |  |  | $ 62,949 |  |
Number of Sites | property |  |  |  |  |  |  |  |  | 40 |  | 40 | 40 |  |  | 40 |  |
Class A common shares | RMR Inc |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issued in connection with acquisition | shares |  |  | 5,019,121 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Hotels |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital improvements from leased facilities, funded |  |  |  |  |  |  |  |  |  |  |  | $ 179,132 |  |  |  |  |
Hotels | Sonesta ES Suites |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of properties acquired | property |  | 9 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of hotel suites | room |  | 1,095 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of states hotels to be acquired located | state |  | 8 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price excluding closing cost |  | $ 85,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Hotels | Sonesta ES Suites | Subsequent event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of hotels to be acquired | property | 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of hotel suites | room | 262 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price excluding closing cost | $ 12,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Hotels | Sonesta agreements |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of properties acquired | item |  |  |  |  |  |  | 9 |  |  |  |  |  |  |  |  |  |
Fixed minimum return as a percentage of invested capital |  |  |  |  |  |  |  |  |  |  |  | 8.00% |  |  |  |  |
Up C Transaction |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Indirect economic interest in RMR LLC as a percent |  |  | 16.20% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Up C Transaction | RMR Inc |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity conversion ratio of RMR Inc. class B-1 common stock |  |  |  |  |  |  |  |  |  |  | 1 |  |  |  |  |  |
Aggregate consideration paid |  |  | $ 12,622 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Up C Transaction | Common shares | RMR Inc |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issued in connection with acquisition | shares |  |  | 1,490,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Up C Transaction | Class A common shares | RMR Inc |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of votes per equity interest | Vote |  |  |  |  |  |  |  |  |  |  | 1 |  |  |  |  |  |
Shares issued in connection with acquisition | shares |  |  | 5,019,121 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Up C Transaction | Class B1 common shares | RMR Inc |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of votes per equity interest | Vote |  |  |  |  |  |  |  |  |  |  | 10 |  |  |  |  |  |
Up C Transaction | Class B2 common shares | RMR Inc |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of votes per equity interest | Vote |  |  |  |  |  |  |  |  |  |  | 10 |  |  |  |  |  |
Travel Centers of America LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership formerly held in subsidiary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.00%
Common shares of TA held by company as a percent of total TA shares outstanding |  |  |  |  |  |  |  |  | 8.90% |  | 8.90% | 8.90% |  |  | 8.90% |  |
Number of properties acquired | property |  |  |  |  |  |  |  |  |  |  | 14 |  |  |  |  |  |
Number of properties where certain assets are leased back to acquiree | property |  |  |  |  |  |  |  |  |  |  | 11 |  |  |  |  |  |
Rental income |  |  |  |  |  |  |  |  | $ 65,548 | 55,749 |  | $ 181,174 | 166,427 |  |  |  |
Capital improvements from leased facilities, funded |  |  |  |  |  |  |  |  |  |  |  | 70,150 | 41,961 |  |  |  |
Increase (decrease) in minimum annual rent |  |  |  |  |  |  |  |  |  |  | $ (3,874) | 5,963 | 3,567 |  |  |  |
Adjustments included in rental income necessary to record rent on the straight line basis |  |  |  |  |  |  |  |  | 3,647 | 422 |  | 5,452 | 1,266 |  |  |  |
Accounts receivable from related parties |  |  |  |  |  |  |  |  | 46,465 |  | 46,465 | 46,465 |  | $ 40,253 | $ 46,465 |  |
Gain on sale of real estate |  |  |  |  |  |  |  |  |  |  | 11,015 |  |  |  |  |  |
Purchase price excluding closing cost |  |  |  |  |  |  |  |  | $ 279,383 |  | $ 279,383 | $ 279,383 |  |  | $ 279,383 |  |
Number of common shares owned | shares |  |  |  |  |  |  |  |  | 3,420,000 |  | 3,420,000 | 3,420,000 |  |  | 3,420,000 |  |
Travel Centers of America LLC | Subsequent event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price excluding closing cost |  |  |  |  |  | $ 15,000 |  |  |  |  |  |  |  |  |  |  |
Travel Centers of America LLC | TA New Leases |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of properties acquired | property |  |  |  |  | 14 |  |  |  |  |  |  |  |  |  |  |  |
Number of properties where certain assets are leased back to acquiree | property |  |  |  |  | 11 |  |  |  |  |  |  |  |  |  |  |  |
Number of properties acquired and leased back to the acquiree | property |  |  |  |  | 5 |  |  |  |  |  |  |  |  |  |  |  |
Purchase price equal to estimate of development costs, including the cost of land |  |  |  |  | $ 118,000 |  |  |  |  |  |  |  |  |  |  |  |
Purchase price excluding closing cost |  |  |  |  | $ 279,383 |  |  |  |  |  |  |  |  |  |  |  |
Travel Centers of America LLC | TA No. 5 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate amount of percentage rent to be waived |  |  |  |  |  |  |  |  | $ 2,500 |  | $ 2,500 | $ 2,500 |  |  | $ 2,500 |  |
Annual percentage rent waived |  |  |  |  |  |  |  |  | 271 | 126 |  | 819 | 372 |  | $ 1,826 |  |
Amount of percentage rent recognized |  |  |  |  |  |  |  |  | 0 | 557 |  | $ 2,048 | $ 2,129 |  |  |  |
Travel Centers of America LLC | TA No. 5 | Subsequent event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase (decrease) in minimum annual rent |  |  |  |  |  | $ 1,275 |  |  |  |  |  |  |  |  |  |  |
Travel Centers of America LLC | Travel centers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of properties acquired | property |  |  |  |  | 5 |  |  |  |  |  |  |  |  |  |  |  |
RMR Trust | Up C Transaction |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Voting power of outstanding capital stock of RMR Inc |  |  | 91.40% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Indirect economic interest in RMR LLC as a percent |  |  | 51.60% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity conversion ratio of RMR LLC class A membership units |  |  |  |  |  |  |  |  |  |  | 1 |  |  |  |  |  |
RMR Trust | Up C Transaction | Amended Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Window for providing notice of termination of property management agreement after change of control by the related party |  |  | 12 months |  |  |  |  |  |  |  |  |  |  |  |  |  |
Window for providing notice of termination of property management agreement for performance by the related party |  |  | 60 days |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of business days notice for termination of property management agreement for performance by the related party |  |  | 60 days |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of business days notice for termination of property management agreement for convenience by the related party |  |  | 60 days |  |  |  |  |  |  |  |  |  |  |  |  |  |
RMR Trust | Up C Transaction | RMR Inc |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate consideration paid |  |  | $ 11,520 |  |  |  |  |  |  |  |  |  |  |  |  |  |
RMR Trust | Up C Transaction | Managing Trustees Barry And Adam Portnoy Member |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Period over which shares remain under lock up and registration agreement |  |  |  |  |  |  |  |  |  |  |  | 10 years |  |  |  |  |
RMR Trust | Up C Transaction | Class A common shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business acquisition related party equity interests delivered | shares |  |  |  | 30,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
RMR Trust | Up C Transaction | Class A common shares | RMR Inc |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business acquisition related party equity interests delivered | shares |  |  | 15,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
RMR Trust | Up C Transaction | Class B1 common shares | RMR Inc |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issued in connection with acquisition | shares |  |  | 1,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
RMR Trust | Up C Transaction | Class B2 common shares | RMR Inc |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issued in connection with acquisition | shares |  |  | 15,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
RMR Trust | Up C Transaction | Class B member units | RMR Inc |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issued in connection with acquisition | shares |  |  | 1,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
GOV | Up C Transaction |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Indirect economic interest in RMR LLC as a percent |  |  | 5.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
GOV | Up C Transaction | RMR Inc |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate consideration paid |  |  | $ 3,917 |  |  |  |  |  |  |  |  |  |  |  |  |  |
GOV | Up C Transaction | Common shares | RMR Inc |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issued in connection with acquisition | shares |  |  | 700,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
GOV | Up C Transaction | Class A common shares | RMR Inc |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issued in connection with acquisition | shares |  |  | 1,541,201 |  |  |  |  |  |  |  |  |  |  |  |  |  |
SNH | Up C Transaction |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Indirect economic interest in RMR LLC as a percent |  |  | 17.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
SNH | Up C Transaction | RMR Inc |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate consideration paid |  |  | $ 13,967 |  |  |  |  |  |  |  |  |  |  |  |  |  |
SNH | Up C Transaction | Common shares | RMR Inc |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issued in connection with acquisition | shares |  |  | 2,345,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
SNH | Up C Transaction | Class A common shares | RMR Inc |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issued in connection with acquisition | shares |  |  | 5,272,787 |  |  |  |  |  |  |  |  |  |  |  |  |  |
SIR | Up C Transaction |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Indirect economic interest in RMR LLC as a percent |  |  | 10.20% |  |  |  |  |  |  |  |  |  |  |  |  |  |
SIR | Up C Transaction | RMR Inc |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate consideration paid |  |  | $ 15,880 |  |  |  |  |  |  |  |  |  |  |  |  |  |
SIR | Up C Transaction | Common shares | RMR Inc |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issued in connection with acquisition | shares |  |  | 880,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
SIR | Up C Transaction | Class A common shares | RMR Inc |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issued in connection with acquisition | shares |  |  | 3,166,891 |  |  |  |  |  |  |  |  |  |  |  |  |  |
RMR LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rental income |  |  |  |  |  |  |  |  | $ 9 |  |  | $ 26 |  |  |  |  |
Common shares issued for services rendered by RMR | shares |  |  |  |  |  |  |  |  |  |  |  | 52,366 | 97,816 |  |  |  |
Base management fee payable monthly in cash (as a percent) |  |  |  |  |  |  |  |  | 100.00% |  | 100.00% | 100.00% |  |  | 100.00% |  |
Accrual for RMR LLC employee share grants |  |  |  |  |  |  |  |  | $ 776 | 973 |  | $ 2,283 | $ 2,199 |  |  |  |
Related party reimbursement expenses |  |  |  |  |  |  |  |  | 37 | 19 |  |  |  |  |  |  |
Estimated incentive fees recorded |  |  |  |  |  |  |  |  | 8,561 | 4,778 |  | $ 17,383 | $ 6,951 |  |  |  |
Shares issued under the business management agreement | shares |  |  |  |  |  |  |  |  |  |  |  | 52,366 | 97,816 |  |  |  |
Business management fees incurred |  |  |  |  |  |  |  |  | 17,392 | 14,309 |  | $ 45,856 | $ 34,896 |  |  |  |
RMR LLC | Up C Transaction |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of terminated management agreements for a performance reason before termination fee is incurred | agreement |  |  | 1 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of RMR LLC terminated management agreements for good cause before termination fee is incurred | agreement |  |  | 1 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of terminated management agreements for convenience before termination fee is incurred | agreement |  |  | 1 |  |  |  |  |  |  |  |  |  |  |  |  |  |
RMR LLC | Up C Transaction | Amended Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Termination fee remaining term assumption |  |  | 10 years |  |  |  |  |  |  |  |  |  |  |  |  |  |
AIC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Combined property insurance policy term |  |  |  |  |  |  |  | 3 years |  |  |  |  |  |  |  |  |
Property insurance premium |  |  |  |  |  |  |  | $ 2,442 |  |  |  |  |  |  |  |  |
Terrorism coverage of property insurance |  |  |  |  |  |  |  | $ 200,000 |  |  |  |  |  |  |  |  |
Terrorism property insurance term |  |  |  |  |  |  |  | 1 year |  |  |  |  |  |  |  |  |
Coverage of property insurance |  |  |  |  |  |  |  | $ 500,000 |  |  |  |  |  |  |  |  |
Equity in unrealized (loss) gain of an investee |  |  |  |  |  |  |  |  | (72) | (33) |  | (91) | 8 |  |  |  |
Earnings (losses) recognized related to equity investments |  |  |  |  |  |  |  |  | (24) | $ 38 |  | 71 | $ 66 |  |  |  |
Equity method investments, carrying value |  |  |  |  |  |  |  |  | $ 6,814 |  | $ 6,814 | $ 6,814 |  |  | $ 6,814 |  |

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

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- Definition ssss + References No definition available. + Details
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Namespace Prefix: | hpt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Represents the amount of annual percentage rent waived during the period. + References No definition available. + Details
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Namespace Prefix: | hpt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Represents the amount of percentage rent recognized during the period. + References No definition available. + Details
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Namespace Prefix: | hpt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Represents the amount of percentage rent recognized under the prior lease agreement and incorporated into the new lease agreemnts. + References No definition available. + Details
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Namespace Prefix: | hpt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Number of shares delivered of equity interests owned of a related party to acquire an entity. + References No definition available. + Details
Name: | hpt_BusinessAcquisitionEquityInterestsDelivered
Namespace Prefix: | hpt_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- Definition Represents the term of the combined property insurance policy purchased from a related party. + References No definition available. + Details
Name: | hpt_CombinedPropertyInsurancePolicyTerm
Namespace Prefix: | hpt_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Definition Amortization of the difference between the carrying amount of the cost method investment and its fair value for the period. + References No definition available. + Details
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Namespace Prefix: | hpt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Represents amount of deferred percentage rent revenue for the reporting period. + References No definition available. + Details
Name: | hpt_DeferredPercentageRent
Namespace Prefix: | hpt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Represents the amount of the deferred rent receivable at the balance sheet date due in December 2022. + References No definition available. + Details
Name: | hpt_DeferredRentReceivableDueDecember2022
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition The ratio upon conversion of RMR Inc. class B-1 common stock into RMR Inc. class A common stock. + References No definition available. + Details
Name: | hpt_EquityInstrumentConvertibleConversionRatio
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Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

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- Definition The ratio upon conversion of RMR LLC class A membership units owned by RMR Trust into RMR Inc. class A common stock. + References No definition available. + Details
Name: | hpt_EquityInstrumentConvertibleConversionRatio1
Namespace Prefix: | hpt_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

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- Definition Represents the amount expected to be provided to renovate for the hotels acquired. + References No definition available. + Details
Name: | hpt_HotelManagementAgreementsAndLeasesExpectedProvisionForRenovationOfAcquisitionsMade
Namespace Prefix: | hpt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition The number of real estate properties under operating agreements. + References No definition available. + Details
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Namespace Prefix: | hpt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Definition Represents the increase or decrease in the annual minimum returns and rents the lessee or manager is obligated to pay under the operating agreement. + References No definition available. + Details
Name: | hpt_IncreaseDecreaseOperatingAgreementsAnnualMinimumReturnsAndRents
Namespace Prefix: | hpt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Represents the percentage of indirect economic interest held in RMR LLC. + References No definition available. + Details
Name: | hpt_IndirectEconomicInterestPercent
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Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition The initial other liabilities recorded which is the difference of the total consideration paid and the fair market value of the investment. + References No definition available. + Details
Name: | hpt_InitialOtherLiabilities
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Represents the carrying value of a cost method investment including transaction costs. + References No definition available. + Details
Name: | hpt_InvestmentAtCarryingValueIncludingTransactionCosts
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Represents approximate percentage of TA's outstanding common shares held by the company. + References No definition available. + Details
Name: | hpt_InvestmentOwnedPercentageOfTotalSharesOutstanding
Namespace Prefix: | hpt_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition Represents the period over which the company's common shares remain under a lock up and registration rights agreement and not authorized to be transfered. + References No definition available. + Details
Name: | hpt_LockUpAgreementTransferOfCommonSharesPeriod
Namespace Prefix: | hpt_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Definition Represents management, system, reservation fees and reimbursement of certain guest loyalty, marketing program and third party reservation transmission expenses payable to third party. + References No definition available. + Details
Name: | hpt_MarketingAndReservationSystemFees
Namespace Prefix: | hpt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Represents the minimum return payments or minimum rents due to the entity under management agreements and/or leases agreements. + References No definition available. + Details
Name: | hpt_MinimumReturnPaymentsMinimumRents
Namespace Prefix: | hpt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Represents the number of suites in a portfolio of extended stay hotels acquired. + References No definition available. + Details
Name: | hpt_NumberOfHotelSuites
Namespace Prefix: | hpt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Definition Represents the number of extended stay hotels acquired. + References No definition available. + Details
Name: | hpt_NumberOfHotelToBeAcquired
Namespace Prefix: | hpt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Definition Represents the number of management agreements or leases under which properties of the entity are operated. + References No definition available. + Details
Name: | hpt_NumberOfManagementAgreementsOrLeases
Namespace Prefix: | hpt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Definition Represents the number of management agreements the company would need to terminate for convenience before a termination fee is incurred. + References No definition available. + Details
Name: | hpt_NumberOfManagementAgreemtentsTerminatedBeforeTerminationFeeIncurred
Namespace Prefix: | hpt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Definition Represents the number of management agreements RMR LLC would need to terminate for good cause before a termination fee is incurred. + References No definition available. + Details
Name: | hpt_NumberOfManagementAgreemtentsTerminatedGoodCauseBeforeTerminationFeeIncurred
Namespace Prefix: | hpt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Definition Represents the number of management agreements the company would need to terminate for a performance reason before a termination fee is incurred. + References No definition available. + Details
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Namespace Prefix: | hpt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Definition Represents the information pertaining to number of properties acquired. + References No definition available. + Details
Name: | hpt_NumberOfPropertiesAcquired
Namespace Prefix: | hpt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Definition Represents the number of properties acquired and leased back to the acquiree. + References No definition available. + Details
Name: | hpt_NumberOfPropertiesAcquiredAndLeasedBack
Namespace Prefix: | hpt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Definition Represents the number of properties where certain assets are leased back to the acquiree upon purchase. + References No definition available. + Details
Name: | hpt_NumberOfPropertiesWhereCertainAssetsLeasedToAcquiree
Namespace Prefix: | hpt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Definition The number of properties with property level operations of the office building component under property management agreement. + References No definition available. + Details
Name: | hpt_NumberOfRealEstatePropertiesUnderPropertyManagementAgreement
Namespace Prefix: | hpt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Definition Represents the number of renewal options available. + References No definition available. + Details
Name: | hpt_NumberOfRenewalOptionsAvailable
Namespace Prefix: | hpt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Definition Represents the information pertaining to state in which hotel to be acquired located. + References No definition available. + Details
Name: | hpt_NumberOfStatesHotelsToBeAcquiredLocated
Namespace Prefix: | hpt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Definition Represents the number of votes per equity interest. + References No definition available. + Details
Name: | hpt_NumberOfVotesPerEquityInterest
Namespace Prefix: | hpt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Definition Percentage of ownership held in the subsidiary formerly. + References No definition available. + Details
Name: | hpt_OwnershipPercentageFormerlyHeldInSubsidiary
Namespace Prefix: | hpt_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition Represents the percentage of increase in non-fuel gross revenue over the threshold amounts, to be paid by the lessee. + References No definition available. + Details
Name: | hpt_PercentageIncreaseInNonFuelGrossRevenueToBePaidByLessee
Namespace Prefix: | hpt_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition Represents the proceeds received in connection with an eminent domain taking. + References No definition available. + Details
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Namespace Prefix: | hpt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Represents the purchase price of properties acquired, which is an estimate of the development costs, including the cost of land. + References No definition available. + Details
Name: | hpt_PurchasePriceEqualToEstimateOfDevelopmentCostsIncludingLand
Namespace Prefix: | hpt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Represents the aggregate purchase price excluding closing costs, of real estate properties acquired or agreed to be acquired by the entity. + References No definition available. + Details
Name: | hpt_RealEstateAggregatePurchasePrice
Namespace Prefix: | hpt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Total expense amount to reimburse a related party. + References No definition available. + Details
Name: | hpt_RelatedPartyReimbursementExpense
Namespace Prefix: | hpt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

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- Definition Represents the amount of estimated incentive fees recorded during the period. + References No definition available. + Details
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Namespace Prefix: | hpt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Represents the fixed minimum return due from related parties under hotel management agreement expressed as a percentage of the entity's invested capital. + References No definition available. + Details
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Namespace Prefix: | hpt_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Represents the window or numbers of business days after any calendar year to provide notice for termination of property management agreement by the related party for performance reasons. + References No definition available. + Details
Name: | hpt_RelatedPartyTransactionNumberOfBusinessDayWindowAfterEndOfAnyCalendarYearPriorWrittenNoticeForTerminationOfPropertyManagementAgreementForPerformanceByRelatedParty
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Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Definition Represents the number of business days notice for termination of property management agreement by the related party for convenience. + References No definition available. + Details
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Namespace Prefix: | hpt_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Definition Represents the number of business days notice for termination of property management agreement by the related party for performance, provided within a given window or numbers of days after any calendar year. + References No definition available. + Details
Name: | hpt_RelatedPartyTransactionNumberOfBusinessDaysPriorWrittenNoticeForTerminationOfPropertyManagementAgreementForPerformanceByRelatedParty
Namespace Prefix: | hpt_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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

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- Definition Represents the procurement and construction supervisory fees resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party. + References No definition available. + Details
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Namespace Prefix: | hpt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Represents the insurance coverage of the property insurance purchased from related parties. + References No definition available. + Details
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Namespace Prefix: | hpt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Represents insurance coverage for terrorism of the property insurance purchased from related parties. + References No definition available. + Details
Name: | hpt_RelatedPartyTransactionPropertyTerrorismInsuranceCoverageAmount
Namespace Prefix: | hpt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Represents the window after a change in control to provide notice for termination of property management agreement by the related party. + References No definition available. + Details
Name: | hpt_RelatedPartyTransactionWindowAfterChangeOfControlPriorWrittenNoticeForTerminationOfPropertyManagementAgreementByRelatedParty
Namespace Prefix: | hpt_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Definition Represents the period over which the discount on shares acquired is amortized in years. + References No definition available. + Details
Name: | hpt_StaightLineDiscountAmortizationPeriod
Namespace Prefix: | hpt_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Definition Represents the standalone terror insurance policy term in years. + References No definition available. + Details
Name: | hpt_StandaloneTerrorPolicyCoverageTerm
Namespace Prefix: | hpt_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the term of renewal option available. + References No definition available. + Details
Name: | hpt_TermOfRenewalOption
Namespace Prefix: | hpt_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the remaining term assumption in years used to calculate the fee for termination of one or both of the company's amended management agreements for a performance reason. + References No definition available. + Details
Name: | hpt_TerminationFeeRemainingTermAssumption
Namespace Prefix: | hpt_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the percentage of voting power controlled by a given entity with outstanding capital stock in RMR Inc. + References No definition available. + Details
Name: | hpt_VotingPowerPercent
Namespace Prefix: | hpt_
Data Type: | num:percentItemType
Balance Type: | na
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