XML 42 R29.htm IDEA: XBRL DOCUMENT v3.8.0.1

Revenue Recognition - Property Management Fees (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Deferred Revenue Disclosure [Abstract]
Property management fee percent based on gross collected rents	3.00%
Property management fee percent based on the cost of construction	5.00%
Aggregate property management fees	$ 10,858	$ 8,222

X

- Definition

Represents the percentage of the cost of construction charged for property management fees.

+ References

No definition available.

+ Details

Name:	rmr_PropertyManagementFeeConstructionSupervisionPercent
Namespace Prefix:	rmr_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the percentage of gross collected rents charged for property management services.

+ References

No definition available.

+ Details

Name:	rmr_PropertyManagementFeeGrossCollectedRentsPercent
Namespace Prefix:	rmr_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_DeferredRevenueDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of revenue derived from managing real estate properties.

+ References

No definition available.

+ Details

Name:	us-gaap_PropertyManagementFeeRevenue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration