Number of shares delivered of equity interests owned of a related party to acquire an entity.

No definition available.

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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

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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

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- Definition

Represents the percentage of indirect economic interest held in RMR LLC.

+ References

No definition available.

+ Details

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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

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- Definition

Represents the number of votes per equity interest.

+ References

No definition available.

+ Details

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- Definition

Represents the percentage of voting power controlled by a given entity with outstanding capital stock in RMR Inc.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Number of shares of equity interests issued or issuable to acquire entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (b)(4)

-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

+ Details

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 13

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3213-108585

+ 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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- Details

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- Details

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- Details

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Related Person Transactions - Up-C Transaction (Details) $ in Thousands			6 Months Ended	9 Months Ended
	Jun. 05, 2015 USD ($) shares	Jun. 04, 2015 shares	Sep. 30, 2015 Vote	Sep. 30, 2015
Class A common shares \| RMR Inc
Related Party Transaction [Line Items]
Shares issued in connection with acquisition	5,019,121
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]
Aggregate consideration paid \| $	$ 12,622
Equity conversion ratio of RMR Inc. class B-1 common stock			1
Up C Transaction \| Common shares \| RMR Inc
Related Party Transaction [Line Items]
Shares issued in connection with acquisition	1,490,000
Up C Transaction \| Class A common shares \| RMR Inc
Related Party Transaction [Line Items]
Shares issued in connection with acquisition	5,019,121
Number of votes per equity interest \| Vote			1
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
RMR Trust \| Up C Transaction
Related Party Transaction [Line Items]
Equity conversion ratio of RMR LLC class A membership units			1
Indirect economic interest in RMR LLC as a percent	51.60%
Voting power of outstanding capital stock of RMR Inc	91.40%
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		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	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	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	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	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	700,000
GOV \| Up C Transaction \| Class A common shares \| RMR Inc
Related Party Transaction [Line Items]
Shares issued in connection with acquisition	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	2,345,000
SNH \| Up C Transaction \| Class A common shares \| RMR Inc
Related Party Transaction [Line Items]
Shares issued in connection with acquisition	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	880,000
SIR \| Up C Transaction \| Class A common shares \| RMR Inc
Related Party Transaction [Line Items]
Shares issued in connection with acquisition	3,166,891