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v3.24.3

Related Person Transactions - Registration and Lock-up Agreements and Relationships Between Client (Details) | 1 Months Ended
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Jun. 30, 2015
Related Party Transactions [Abstract] |
Term of registration and lock up agreement | 10 years

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- Definition Registration And Lock Up Agreement, Term Of Agreement + References No definition available. + Details
Name: | rmr_RegistrationAndLockUpAgreementTermOfAgreement
Namespace Prefix: | rmr_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_RelatedPartyTransactionsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration