v3.26.1
Revenue Recognition - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended
9 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Revenue Recognition [Abstract]
Acquisition fee revenue
$ 579
$ 664
$ 579
$ 664
X
- Definition
Asset Acquisition, Transaction Expense
+ References
No definition available.
+ Details
Name:
rmr_AssetAcquisitionTransactionExpense
Namespace Prefix:
rmr_
Data Type:
xbrli:monetaryItemType
Balance Type:
debit
Period Type:
duration
X
- References
No definition available.
+ Details
Name:
us-gaap_RevenueRecognitionAbstract
Namespace Prefix:
us-gaap_
Data Type:
xbrli:stringItemType
Balance Type:
na
Period Type:
duration