The RMR Group Inc. (RMR) 10-Q9 Aug 172017 Q3 Quarterly reportFinancial data

Company Profile

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
Document and Entity Information - shares	Jun. 30, 2017	Aug. 08, 2017
Entity Registrant Name	RMR Group Inc.
Entity Central Index Key	1,644,378
Document Type	10-Q
Document Period End Date	Jun. 30, 2017
Amendment Flag	false
Current Fiscal Year End Date	--09-30
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q3
Class A common shares
Entity Common Stock, Shares Outstanding		15,094,510
Class B-1 common shares
Entity Common Stock, Shares Outstanding		1,000,000
Class B-2 common shares
Entity Common Stock, Shares Outstanding		15,000,000

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2017	Sep. 30, 2016
Assets
Cash and cash equivalents	$ 137,711	$ 65,833
Due from related parties	27,027	24,862
Prepaid and other current assets	8,307	4,690
Total current assets	173,045	95,385
Furniture and equipment	4,572	5,024
Leasehold improvements	1,094	1,077
Capitalized software costs	3,786	4,250
Total property and equipment	9,452	10,351
Accumulated depreciation	(6,123)	(6,549)
Total property and equipment, net	3,329	3,802
Due from related parties, net of current portion	7,278	7,754
Equity method investment	208	0
Goodwill	1,859	2,295
Intangible assets, net of amortization	608	1,085
Deferred tax asset	43,332	45,819
Other assets, net of amortization	174,329	181,391
Total assets	403,988	337,531
Current liabilities:
Accounts payable, accrued expenses and deposits	41,209	20,579
Total current liabilities	41,209	20,579
Long term portion of deferred rent payable, net of current portion	975	778
Amounts due pursuant to tax receivable agreement, net of current portion	62,029	62,029
Employer compensation liability, net of current portion	7,278	7,754
Total liabilities	111,491	91,140
Commitments and contingencies
Equity:
Additional paid in capital	95,267	94,266
Retained earnings	81,793	44,543
Cumulative other comprehensive income	83	83
Cumulative common distributions	(29,274)	(17,209)
Total shareholders’ equity	147,900	121,714
Noncontrolling interest	144,597	124,677
Total equity	292,497	246,391
Total liabilities and equity	403,988	337,531
Class A common shares
Equity:
Common stock	15	15
Class B-1 common shares
Equity:
Common stock	1	1
Class B-2 common shares
Equity:
Common stock	$ 15	$ 15

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Jun. 30, 2017	Sep. 30, 2016
Class A common shares
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	31,600,000	31,600,000
Common stock, shares issued	15,094,510	15,082,432
Common stock, shares outstanding	15,094,510	15,082,432
Class B-1 common shares
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	1,000,000	1,000,000
Common stock, shares issued	1,000,000	1,000,000
Common stock, shares outstanding	1,000,000	1,000,000
Class B-2 common shares
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	15,000,000	15,000,000
Common stock, shares issued	15,000,000	15,000,000
Common stock, shares outstanding	15,000,000	15,000,000

Condensed Consolidated Statemen

Condensed Consolidated Statements of Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Revenues:
Management services	$ 44,644	$ 41,867	$ 183,036	$ 182,940
Reimbursable payroll and related costs	9,839	9,744	29,023	25,993
Advisory services	1,019	600	3,033	1,741
Total revenues	55,502	52,211	215,092	210,674
Expenses:
Compensation and benefits	24,769	22,719	72,550	65,584
Separation costs	0	1,195	0	1,358
General and administrative	8,539	6,110	21,526	19,110
Depreciation and amortization	467	349	1,550	1,333
Total expenses	33,775	30,373	95,626	87,385
Operating income (loss)	21,727	21,838	119,466	123,289
Interest and other income	402	68	1,059	144
Income before income tax expense and equity in earnings of investee	22,129	21,906	120,525	123,433
Income tax expense	(4,528)	(4,504)	(24,811)	(19,904)
Equity in earnings (loss) of investee	4	0	(161)	0
Net income (loss)	17,605	17,402	95,553	103,529
Net income attributable to noncontrolling interest	(10,748)	(10,704)	(58,303)	(73,663)
Net income attributable to RMR Inc.	6,857	6,698	37,250	29,866
Other comprehensive income (loss):
Foreign currency translation adjustments	1	(6)	0	13
Other comprehensive income (loss)	1	(6)	0	13
Comprehensive income	17,606	17,396	95,553	103,542
Comprehensive income attributable to noncontrolling interest	(10,748)	(10,701)	(58,303)	(73,669)
Comprehensive income attributable to RMR Inc.	$ 6,858	$ 6,695	$ 37,250	$ 29,873
Weighted average common shares outstanding - basic (in shares)	16,037	16,008	16,029	16,003
Weighted average common shares outstanding - diluted (in shares)	16,058	16,008	16,044	16,003
Net income attributable to RMR Inc. per common share - basic (in dollars per share)	$ 0.43	$ 0.42	$ 2.32	$ 1.87
Net income attributable to RMR Inc. per common share - diluted (in dollars per share)	$ 0.43	$ 0.42	$ 2.31	$ 1.87

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Shareholders' Equity - 9 months ended Jun. 30, 2017 - USD ($) $ in Thousands	Total	Additional Paid In Capital	Retained Earnings	Cumulative Other Comprehensive Income (Loss)	Cumulative Common Distributions	Total Shareholders' Equity	Noncontrolling Interest	Class A common sharesCommon shares	Class B-1 common sharesCommon shares	Class B-2 common sharesCommon shares
Balance beginning at Sep. 30, 2016	$ 246,391	$ 94,266	$ 44,543	$ 83	$ (17,209)	$ 121,714	$ 124,677	$ 15	$ 1	$ 15
Increase (Decrease) in Shareholders' Equity
Share grants, net	1,001	1,001				1,001
Net income	95,553		37,250			37,250	58,303
Tax distributions to Member	(27,133)						(27,133)
Common share distributions	(23,315)				(12,065)	(12,065)	(11,250)
Balance ending at Jun. 30, 2017	$ 292,497	$ 95,267	$ 81,793	$ 83	$ (29,274)	$ 147,900	$ 144,597	$ 15	$ 1	$ 15

Condensed Consolidated Stateme6

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash Flows from Operating Activities
Net income	$ 95,553	$ 103,529
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	1,550	1,333
Straight line office rent	197	257
Amortization expense related to other asset	7,062	7,062
Deferred income taxes	2,487	1,231
Operating expenses paid in RMR Inc. common shares	1,021	175
Contingent consideration liability	(456)	0
Equity in loss of investee	161	0
Distribution from equity method investment	70	0
Changes in assets and liabilities:
Due from related parties	(5,779)	(4,757)
Prepaid and other current assets	(3,617)	(2,054)
Accounts payable, accrued expenses and deposits	24,682	17,198
Incentive fee allocable to ABP Trust	0	(26,611)
Net cash from operating activities	122,931	97,363
Cash Flows from Investing Activities
Purchase of property and equipment	(604)	(955)
Net cash used in investing activities	(604)	(955)
Cash Flows from Financing Activities
Distributions to noncontrolling interest	(38,383)	(36,574)
Distributions to common shareholders	(12,065)	(13,207)
Net cash used in financing activities	(50,448)	(49,781)
Effect of exchange rate fluctuations on cash and cash equivalents	(1)	13
Increase in cash and cash equivalents	71,878	46,640
Cash and cash equivalents at beginning of year	65,833	34,497
Cash and cash equivalents at end of year	137,711	81,137
Supplemental cash flow information
Income taxes paid	$ 23,336	$ 19,287

Basis of Presentation

Basis of Presentation	9 Months Ended
Basis of Presentation	Jun. 30, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The RMR Group Inc., or RMR Inc., is a holding company and substantially all of its business is conducted by its majority owned subsidiary The RMR Group LLC, or RMR LLC. RMR Inc. is a Maryland corporation and RMR LLC is a Maryland limited liability company. RMR Inc. serves as the sole managing member of RMR LLC and, in that capacity, operates and controls the business and affairs of RMR LLC. In these financial statements, unless otherwise indicated, “we", "us” and “our” refer to RMR Inc. and its direct and indirect subsidiaries, including RMR LLC. As of June 30, 2017 , RMR Inc. owns 15,094,510 class A membership units of RMR LLC, or Class A Units, and 1,000,000 class B membership units of RMR LLC, or Class B Units. The aggregate RMR LLC membership units RMR Inc. owns represent 51.8% of the economic interest of RMR LLC as of June 30, 2017 . We refer to economic interest as the right of a holder of a Class A Unit or Class B Unit to share in distributions made by RMR LLC and, upon liquidation, dissolution or winding up of RMR LLC, to share in the assets of RMR LLC after payments to creditors. ABP Trust, a Maryland statutory trust, beneficially owned by Barry M. Portnoy and Adam D. Portnoy, our Managing Directors, owns 15,000,000 redeemable Class A Units, representing 48.2% of the economic interest of RMR LLC as of June 30, 2017 , which is presented as a noncontrolling interest within the condensed consolidated financial statements. RMR LLC was founded in 1986 to manage public investments in real estate and, as of June 30, 2017 , managed a diverse portfolio of publicly owned real estate and real estate related businesses. RMR LLC manages: Government Properties Income Trust, or GOV, a publicly traded real estate investment trust, or REIT, that primarily owns properties that are majority leased to the U.S. government and state governments; Hospitality Properties Trust, or HPT, a publicly traded REIT that primarily owns hotel and travel center properties; Select Income REIT, or SIR, a publicly traded REIT that primarily owns properties that are leased to single tenants, and Senior Housing Properties Trust, or SNH, a publicly traded REIT that primarily owns healthcare, senior living and medical office buildings. Hereinafter, GOV, HPT, SIR and SNH are collectively referred to as the Managed REITs. RMR LLC also provides management services to other publicly traded and private businesses, including: Five Star Senior Living Inc., or Five Star, a publicly traded operator of senior living communities, many of which are owned by SNH; Sonesta International Hotels Corporation, or Sonesta, a privately owned franchisor and operator of hotels, resorts and cruise ships in the United States, Latin America, the Caribbean and the Middle East, some of whose U.S. hotels are owned by HPT; and TravelCenters of America LLC, or TA, an operator of travel centers along the U.S. Interstate Highway System, many of which are owned by HPT, convenience stores with retail gas stations and restaurants. Hereinafter, Five Star, Sonesta and TA are collectively referred to as the Managed Operators. In addition, RMR LLC also provides management services to certain related private companies, including Affiliates Insurance Company, or AIC, an Indiana insurance company, and ABP Trust and its subsidiaries. During the nine months ended June 30, 2016 , RMR LLC provided certain transition services to Equity Commonwealth, or EQC, a publicly traded REIT that primarily owns office properties. RMR Advisors LLC, a Maryland limited liability company, or RMR Advisors, was founded in 2002. RMR Advisors is a wholly owned subsidiary of RMR LLC and is the adviser to RMR Real Estate Income Fund, or RIF. RIF is a closed end investment company focused on investing in real estate securities, including REITs and other dividend paying securities, but excluding our Client Companies, as defined below. On August 5, 2016, we acquired certain assets of Tremont Realty Capital LLC, or the Tremont business, which principally originates and manages real estate debt and debt like financings and serves as adviser to a private fund created for an institutional investor and other separately managed accounts. As part of this transaction, Tremont Realty Advisors LLC, or Tremont Advisors, a wholly owned subsidiary of RMR LLC founded in 2016 and an investment advisor registered with the Securities and Exchange Commission, or SEC, was assigned the investment management contracts of the Tremont business. Tremont Advisors manages a private fund created for an institutional investor and other separately managed accounts that invest in commercial real estate debt, including secured mortgage debt, mezzanine financings and commercial real estate that may become owned by its clients. On November 28, 2016, we were assigned the Tremont business's 0.5% general partnership interest in a private fund created for an institutional investor managed by the Tremont business. We account for this investment under the equity method of accounting and record our share of the investment's earnings or losses each period. RMR International LLC, a Maryland limited liability company, or RMR Intl, was founded in 2012. RMR Intl is a wholly owned subsidiary of RMR LLC whose sole business is holding the equity interests of RMR Australia Asset Management Pty Ltd, or RMR Australia, a company founded in 2012 to manage certain investments of a company then managed by RMR LLC in Australia. RMR Australia continues to hold an Australian financial services license granted by the Australian Securities & Investments Commission but has ceased operations subsequent to the termination of services being provided to EQC as of October 31, 2015. In these financial statements, we refer to the Managed REITs, the Managed Operators, RIF, AIC, ABP Trust and the clients of the Tremont business as our Client Companies. The accompanying condensed consolidated financial statements of RMR Inc. are unaudited. Certain information and disclosures required by U.S. generally accepted accounting principles, or GAAP, for complete financial statements have been condensed or omitted. We believe the disclosures made are adequate to make the information presented not misleading. However, the accompanying condensed consolidated financial statements should be read in conjunction with the financial statements and notes contained in our Annual Report on Form 10-K for the fiscal year ended September 30, 2016, or our Annual Report. In the opinion of our management, all adjustments, which include only normal recurring adjustments considered necessary for a fair presentation, have been included. All intercompany transactions and balances with or among our consolidated subsidiaries have been eliminated. Our operating results for interim periods are not necessarily indicative of the results that may be expected for the full year. Reclassifications have been made to the prior year's condensed consolidated financial statements to conform to the current year's presentation. Preparation of these financial statements in conformity with GAAP requires our management to make certain estimates and assumptions that may affect the amounts reported in these financial statements and related notes. The actual results could differ from these estimates.

Recent Accounting Pronouncement

Recent Accounting Pronouncements	9 Months Ended
Recent Accounting Pronouncements	Jun. 30, 2017
Accounting Policies [Abstract]
Recent Accounting Pronouncements	Recent Accounting Pronouncements In May 2014, the Financial Accounting Standards Board, or FASB, issued Accounting Standards Update, or ASU, No. 2014-09, Revenue from Contracts with Customers . The main provision of ASU No. 2014-09 is to recognize revenue when control of the goods or services transfers to the customer, as opposed to the existing guidance of recognizing revenue when the risk and rewards transfer to the customer. In July 2015, the FASB approved a one year deferral of the effective date for this ASU to interim and annual reporting periods beginning after December 15, 2017. We are continuing to evaluate this guidance; however, we do not expect its adoption to have a material impact on our condensed consolidated financial statements as our revenue recognition is expected to be unchanged under this new guidance, including variable consideration attributable to incentive fees. In February 2016, the FASB issued ASU No. 2016-02, Leases , which sets out the principles for the recognition, measurement, presentation and disclosure of leases for both parties to a contract (i.e., lessees and lessors). ASU No. 2016-02 requires lessees to apply a dual approach, classifying leases as either finance or operating leases based on the principle of whether or not the lease is effectively a financed purchase of the leased asset by the lessee. This classification will determine whether the lease expense is recognized based on an effective interest method or on a straight line basis over the term of the lease. A lessee is also required to record a right of use asset and a lease liability for all leases with a term of greater than 12 months regardless of their classification. Leases with a term of 12 months or less will be accounted for similar to existing guidance for operating leases today. ASU No. 2016-02 is effective for reporting periods beginning after December 15, 2018, with early adoption permitted. We are currently assessing the potential impact the adoption of ASU No. 2016-02 will have on our condensed consolidated financial statements. In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments , which requires that entities use a new forward looking “expected loss” model that generally will result in the earlier recognition of allowance for credit losses. The measurement of expected credit losses is based upon historical experience, current conditions and reasonable and supportable forecasts that affect the collectability of the reported amount. ASU No. 2016-13 will become effective for fiscal years beginning after December 15, 2019. We are continuing to assess this guidance, but we have not historically experienced credit losses from our Client Companies and do not expect the adoption of ASU No. 2016-13 to have a material impact on our condensed consolidated financial statements.

Revenue Recognition

Revenue Recognition	9 Months Ended
Revenue Recognition	Jun. 30, 2017
Revenue Recognition [Abstract]
Revenue Recognition	Revenue Recognition Revenues from services that we provide are recognized as earned in accordance with contractual agreements. In the periods presented, management and advisory services revenue consists principally of business management fees, property management fees and advisory fees earned from our Client Companies and EQC. Business Management and Incentive Fees—Managed REITs We earn annual base business management fees from the Managed REITs pursuant to business management agreements equal to the lesser of: • the sum of (a) 0.5% of the historical cost of transferred real estate assets, if any, as defined in the applicable business management agreement, plus (b) 0.7% of the average invested capital (exclusive of the transferred real estate assets), as defined in the applicable business management agreement, up to $250,000 , plus (c) 0.5% of the average invested capital exceeding $250,000 ; and • the sum of (a) 0.7% of the average market capitalization, as defined in the applicable business management agreement, up to $250,000 , plus (b) 0.5% of the average market capitalization exceeding $250,000 . The foregoing base business management fees are paid monthly in arrears, based on the lower of the Managed REIT’s monthly average historical costs of assets under management and average market capitalization during the month. For purposes of these fees, a Managed REIT’s assets under management do not include shares it owns of another Client Company. We also may earn annual incentive business management fees from the Managed REITs under the business management agreements. The incentive business management fees are contingent performance based fees which are only recognized when earned at the end of each respective measurement period. The incentive fees are calculated for each Managed REIT as 12.0% of the product of (a) the equity market capitalization of the Managed REIT, as defined in the applicable business management agreement, and (b) the amount, expressed as a percentage, by which the Managed REIT’s total return per share, as defined in the applicable business management agreement, exceeded the benchmark total return per share, as defined in the applicable business management agreement, of a specified REIT index identified in the applicable business management agreement for the measurement period, subject to caps on the values of the incentive fees. The measurement period for the annual incentive fee in respect of calendar year 2016 was the three year period that ended on December 31, 2016 and in respect of calendar year 2015 was the two year period that ended on December 31, 2015. The measurement period for the annual incentive fee in respect of the current calendar year and calendar years thereafter is the three year period ending on December 31 of the applicable calendar year. We earned aggregate base business management fees from the Managed REITs of $28,643 and $26,623 for the three months ended June 30, 2017 and 2016 , respectively, and $84,816 and $76,628 for the nine months ended June 30, 2017 and 2016 , respectively. We earned aggregate incentive business management fees from the Managed REITs of $52,407 and $62,263 for the nine months ended June 30, 2017 and 2016 , respectively, all of which was earned during the three months ended December 31, 2016 and 2015, respectively. Incentive business management fees recognized as earned in the nine months ended June 30, 2017 and 2016 were earned in respect of the 2016 and 2015 calendar years, respectively. Business Management Fees—Managed Operators, ABP Trust and AIC We earn business management fees from the Managed Operators and ABP Trust pursuant to business management agreements equal to 0.6% of: (i) in the case of Five Star, Five Star’s revenues from all sources reportable under GAAP, less any revenues reportable by Five Star with respect to properties for which it provides management services, plus the gross revenues at those properties determined in accordance with GAAP, (ii) in the case of Sonesta, Sonesta’s revenues from all sources reportable under GAAP, less any revenues reportable by Sonesta with respect to hotels for which it provides management services, plus the gross revenues at those hotels determined in accordance with GAAP, (iii) in the case of TA, the sum of TA’s gross fuel margin, as defined in the applicable agreement, plus TA’s total nonfuel revenues and (iv) in the case of ABP Trust, revenues from all sources reportable under GAAP. These fees are estimated and payable monthly in advance. We earn business management fees from AIC pursuant to a management agreement equal to 3.0% of its total premiums paid under active insurance underwritten or arranged by AIC. We earned aggregate business management fees from the Managed Operators, ABP Trust and AIC of $6,650 and $6,804 for the three months ended June 30, 2017 and 2016 , respectively, and $19,372 and $19,121 for the nine months ended June 30, 2017 and 2016 , respectively. Property Management Fees We earned property management fees pursuant to property management agreements with certain Client Companies. We generally earn fees under these agreements for property management services equal to 3.0% of gross collected rents. Also, under the terms of the property management agreements, we receive additional property management fees for construction supervision in connection with certain construction activities undertaken at the managed properties equal to 5.0% of the cost of such construction. We earned aggregate property management fees of $9,238 and $8,440 for the three months ended June 30, 2017 and 2016 , respectively, and $26,089 and $24,870 for the nine months ended June 30, 2017 and 2016 , respectively. Reimbursable Payroll and Related Costs Pursuant to certain of our management agreements, the companies to which we provide management services pay or reimburse us for expenses incurred on their behalf. In accordance with Accounting Standards Codification, or ASC, 605, Revenue Recognition , we present certain payroll and related cost reimbursements we receive as revenue. A significant portion of these reimbursable payroll and related costs arises from services we provide pursuant to our property management agreements that are charged or passed through to and are paid by tenants of our Client Companies. We realized reimbursable payroll and related costs of $9,839 and $9,744 for the three months ended June 30, 2017 and 2016 , respectively, and $29,023 and $25,993 for the nine months ended June 30, 2017 and 2016 , respectively. Our reimbursable payroll and related costs include grants of common shares from Client Companies directly to certain of our officers and employees in connection with the provision of management services to those companies. The revenue in respect of each grant is based on the fair value as of the grant date for those shares that have vested, with subsequent changes in the fair value of the unvested grants being recognized in the condensed consolidated statements of comprehensive income over the requisite service period. We record an equal offsetting amount as compensation and benefits expense for all of our reimbursable payroll and related cost revenues. We realized equity based compensation expense and related reimbursements of $892 and $2,128 for the three months ended June 30, 2017 and 2016 , respectively, and $3,386 and $4,971 for the nine months ended June 30, 2017 and 2016 , respectively. We report all other expenses we incur on behalf of our Client Companies on a net basis, as the management agreements provide that reimbursable expenses are to be billed directly to the client. This net basis accounting method is supported by some or all of the following factors, which we have determined define us as an agent rather than a principal with respect to these matters: • reimbursement to us is generally completed prior to payment of the related expenses; • the property owner is contractually obligated to fund such operating costs of the property from existing cash flow or direct funding from its building operating account and we bear little or no credit risk; • our clients are the primary obligor in relationships with the affected suppliers and service providers; and • we earn no margin on the reimbursement aspect of the arrangement, obtaining reimbursement only for actual costs incurred. Advisory Agreements and Other Services to Advisory Clients RMR Advisors is compensated pursuant to its agreement with RIF at an annual rate of 0.85% of RIF’s average daily managed assets, as defined in the agreement. Average daily managed assets includes the net asset value attributable to RIF’s outstanding common shares, plus the liquidation preference of RIF’s outstanding preferred shares, plus the principal amount of any borrowings, including from banks or evidenced by notes, commercial paper or other similar instruments issued by RIF. RMR Advisors earned advisory fees of $613 and $600 for the three months ended June 30, 2017 and 2016 , respectively, and $1,826 and $1,741 for the nine months ended June 30, 2017 and 2016 , respectively. Tremont Advisors is compensated pursuant to its agreement with a private fund created for an institutional investor at an annual rate of 1.35% of the weighted average outstanding balance of all strategic investments, as defined in the agreement, of the private fund. Strategic investments include any direct or indirect participating or non-participating debt investment in certain real estate. Tremont Advisors is also party to loan servicing agreements with its other separately managed account clients. Under such agreements, Tremont Advisors is compensated at an annual rate of 0.50% of the outstanding principal balance of the outstanding loans. In certain circumstances, Tremont Advisors is also entitled to performance fees based on exceeding certain performance targets. Performance fees are realized when a separately managed account client’s cumulative returns are in excess of the contractual preferred return. Tremont Advisors did not earn any performance fees for the three and nine months ended June 30, 2017 . The Tremont business also acts as transaction originators for non-investment advisory clients for negotiated fees. For the three and nine months ended June 30, 2017 , the Tremont business earned between 0.50% and 1.0% of the aggregate principal amounts of any loans so originated. For the three months ended June 30, 2017 , the Tremont business earned management services revenue of $113 and advisory services revenue of $406 , and for the nine months ended June 30, 2017 , we earned management services revenue of $352 and advisory services revenue of $1,207 . EQC Termination and Cooperation Agreement We provided certain transition services for EQC in Australia and earned zero and $58 for the three and nine months ended June 30, 2016 , respectively, for these services.

Income Taxes

Income Taxes	9 Months Ended
Income Taxes	Jun. 30, 2017
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes We are the sole managing member of RMR LLC. RMR LLC is treated as a partnership for U.S. federal and most applicable state and local income tax purposes. RMR Intl, RMR Advisors and Tremont Advisors are wholly owned disregarded subsidiaries of RMR LLC for income tax purposes. As a partnership, RMR LLC is generally not subject to U.S. federal and most state income taxes. Any taxable income or loss generated by RMR LLC is passed through to and included in the taxable income or loss of its members, including RMR Inc. and ABP Trust, based on each member’s respective ownership percentage. We are a corporation subject to U.S. federal and state income tax with respect to our allocable share of any taxable income of RMR LLC and its wholly owned subsidiaries. For the three months ended June 30, 2017 and 2016 , we recognized income tax expense of $4,528 and $4,504 , respectively, which includes $3,978 and $2,837 , respectively, of U.S. federal income tax and $550 and $1,667 , respectively, of state income taxes. For the nine months ended June 30, 2017 and 2016 , we recognized income tax expense of $24,811 and $19,904 , respectively, which includes $21,797 and $16,182 , respectively, of U.S. federal income tax and $3,014 and $3,722 , respectively, of state income taxes. A reconciliation of the statutory income tax rate to the effective tax rate is as follows: Three Months Ended June 30, Nine Months Ended June 30, 2017 2016 2017 2016 Income taxes computed at the federal statutory rate 35.0 % 35.0 % 35.0 % 35.0 % State taxes, net of federal benefit 2.5 % 2.7 % 2.5 % 2.0 % Net income attributable to noncontrolling interest (17.0 )% (17.1 )% (16.9 )% (20.9 )% Total 20.5 % 20.6 % 20.6 % 16.1 % ASC 740, Income Taxes , provides a model for how a company should recognize, measure and present in its financial statements uncertain tax positions that have been taken or are expected to be taken with respect to all open years and in all significant jurisdictions. We recognize a tax benefit only if it is “more likely than not” that a particular tax position will be sustained upon examination or audit. To the extent the “more likely than not” standard has been satisfied, the benefit associated with a tax position is measured as the largest amount that is greater than 50% likely of being realized upon settlement. As of June 30, 2017 and September 30, 2016 , we have no uncertain tax positions.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	9 Months Ended
Fair Value of Financial Instruments	Jun. 30, 2017
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	Fair Value of Financial Instruments As of June 30, 2017 and September 30, 2016 , the fair values of our financial instruments, which include cash and cash equivalents, amounts due from our Client Companies and accounts payable, accrued expenses and deposits, were not materially different from their carrying values, due to the short term nature of these financial instruments. Recurring Fair Value Measures On a recurring basis we measure certain financial assets and financial liabilities at fair value based upon quoted market prices. ASC 820, Fair Value Measurements , establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets and liabilities (Level 1), and the lowest priority to unobservable inputs (Level 3). A financial asset’s or financial liability’s fair value measurement level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Valuation techniques used need to maximize the use of observable inputs and minimize the use of unobservable inputs. Level 1 Estimates The following are our assets and liabilities that all have been measured at fair value using Level 1 inputs in the fair value hierarchy as of June 30, 2017 and September 30, 2016 : June 30, September 30, 2017 2016 Money market funds included in cash and cash equivalents $ 134,398 $ 57,741 Current portion of due from related parties related to share based payment awards 1,363 4,977 Long term portion of due from related parties related to share based payment awards 7,278 7,754 Current portion of employer compensation liability related to share based payment awards included in accounts payable, accrued expenses and deposits 1,363 4,977 Long term portion of employer compensation liability related to share based payment awards 7,278 7,754 Level 3 Estimates Contingent consideration liabilities are re-measured to fair value each reporting period using updated probabilities of payment. Projected contingent payment amounts are discounted back to the current period using a discounted cash flow model. Increases or decreases in probabilities of payment may result in significant changes in the fair value measurements. In August 2016, we acquired the Tremont business for total cash consideration of $2,466 , plus a potential obligation to pay up to an additional $1,270 over a two year period following the acquisition date based on a portion of the payments that we receive from a specified part of the historical Tremont business. The contingent consideration is measured at fair value using an income approach valuation technique, specifically with probability weighted and discounted cash flows. The fair value of the contingent consideration as of June 30, 2017 and September 30, 2016 was $715 and $1,257 , respectively.

Related Person Transactions

Related Person Transactions	9 Months Ended
Related Person Transactions	Jun. 30, 2017
Related Party Transactions [Abstract]
Related Person Transactions	Related Person Transactions As of June 30, 2017 , our Managing Directors own in aggregate, directly and indirectly through ABP Trust, (i) 146,213 shares of Class A common stock of RMR Inc., or Class A Common Shares; (ii) all of the outstanding shares of Class B-1 common stock of RMR Inc., or Class B-1 Common Shares; (iii) all of the outstanding shares of Class B-2 common stock of RMR Inc., or Class B-2 Common Shares; and (iv) 15,000,000 Class A Units. Our Managing Directors are also officers of RMR Inc. and of RMR LLC. Our Managing Directors are also managing trustees of each of the Managed REITs. As of June 30, 2017 , GOV, HPT, SIR and SNH owned 1,214,225 ; 2,503,777 ; 1,586,836 and 2,637,408 Class A Common Shares, respectively, and our Managing Directors beneficially owned, in aggregate, 2.5% of GOV’s common shares, 1.4% of HPT’s outstanding common shares, 1.9% of SIR’s outstanding common shares and 1.3% of SNH’s outstanding common shares. Barry M. Portnoy is a managing director of Five Star and of TA. As of June 30, 2017 , our Managing Directors beneficially owned, in aggregate, less than one percent of TA's outstanding common shares and 36.7% of Five Star’s outstanding common shares. Our Managing Directors are also the owners and directors of Sonesta and are directors of AIC. All of the executive officers of the Managed REITs and many of the executive officers of the Managed Operators are also officers and employees of RMR LLC. Additional information about our related person transactions appears in Note 7 below. Revenues from Related Parties For the three and nine months ended June 30, 2017 and 2016 , we recognized revenues from related parties as set forth in the following table: Three Months Ended June 30, Nine Months Ended June 30, 2017 2016 2017 2016 $ % $ % $ % $ % Managed REITs: GOV $ 9,139 16.4 % $ 8,310 15.9 % $ 26,302 12.3 % $ 23,351 11.1 % HPT 10,636 19.2 % 9,840 18.8 % 84,156 39.1 % 90,621 43.0 % SIR 11,089 20.0 % 10,824 20.7 % 33,108 15.4 % 30,722 14.6 % SNH 15,653 28.2 % 14,855 28.5 % 45,433 21.1 % 42,190 20.0 % 46,517 83.8 % 43,829 83.9 % 188,999 87.9 % 186,884 88.7 % Managed Operators: Five Star 2,439 4.4 % 2,387 4.6 % 7,206 3.4 % 7,109 3.4 % Sonesta 671 1.2 % 594 1.1 % 1,745 0.8 % 1,503 0.7 % TA 3,659 6.6 % 4,013 7.7 % 10,822 5.0 % 10,959 5.2 % 6,769 12.2 % 6,994 13.4 % 19,773 9.2 % 19,571 9.3 % Other: AIC 60 0.1 % 60 0.1 % 180 0.1 % 180 0.1 % RIF 613 1.1 % 600 1.1 % 1,826 0.8 % 1,741 0.8 % ABP Trust 1,024 1.9 % 728 1.5 % 2,755 1.3 % 2,240 1.1 % 1,697 3.1 % 1,388 2.7 % 4,761 2.2 % 4,161 2.0 % Total revenues from related parties 54,983 99.1 % 52,211 100.0 % 213,533 99.3 % 210,616 100.0 % Other unrelated parties 519 0.9 % — — % 1,559 0.7 % 58 — % $ 55,502 100.0 % $ 52,211 100.0 % $ 215,092 100.0 % $ 210,674 100.0 % In March 2017, RMR LLC entered into a management agreement with a subsidiary of SNH related to a medical office building located in Boston in connection with a joint venture arrangement for that building. Under that agreement, the SNH subsidiary pays RMR LLC certain business management fees, which fees are credited against the business management fees SNH pays to RMR LLC. We include these fees within the amount of business management fees we report as earned by RMR LLC from SNH. On December 31, 2016, RMR LLC earned a $52,407 incentive business management fee from HPT pursuant to our business management agreement with HPT. HPT paid this incentive fee in January 2017. On December 31, 2015, RMR LLC earned a $62,263 incentive business management fee from HPT pursuant to our business management agreement with HPT. This $62,263 incentive fee was paid in January 2016. Under the RMR LLC operating agreement, ABP Trust was entitled to receive a pro rata share of any incentive business management fee earned by RMR LLC for the 2015 calendar year based on the number of days in 2015 to June 5, 2015; the portion of the $62,263 incentive fee allocated solely to ABP Trust pursuant to this provision was $26,611 . Amounts Due From Related Parties The following table represents amounts due from related parties as of the dates listed: June 30, September 30, 2017 2016 Managed REITs: GOV $ 5,832 $ 6,165 HPT 11,973 7,800 SIR 6,244 7,190 SNH 8,801 9,733 32,850 30,888 Managed Operators: Five Star 359 291 Sonesta 24 5 TA 436 711 819 1,007 Other Client Companies: AIC 20 21 RIF 34 17 ABP Trust 582 683 636 721 $ 34,305 $ 32,616 Leases As of June 30, 2017 , we leased from ABP Trust and certain Managed REITs office space for use as our headquarters and regional offices. We incurred rental expense under related party leases aggregating $1,056 and $1,077 for the three months ended June 30, 2017 and 2016 , respectively, and $3,165 and $3,190 for the nine months ending June 30, 2017 and 2016 , respectively. Tax Related Payments Pursuant to our tax receivable agreement with ABP Trust, RMR Inc. pays to ABP Trust 85.0% of the amount of cash savings, if any, in U.S. federal, state and local income tax or franchise tax that RMR Inc. realizes as a result of (a) the increases in tax basis attributable to our dealings with ABP Trust and (b) tax benefits related to imputed interest deemed to be paid by us as a result of the tax receivable agreement. During the nine months ended June 30, 2017 , we made no payments to ABP Trust pursuant to this agreement. As of June 30, 2017 , our condensed consolidated balance sheet reflects a liability related to the tax receivable agreement of $64,929 , including $2,900 classified as a current liability that we expect to pay to ABP Trust during the fourth quarter of fiscal year 2017. Under the RMR LLC operating agreement, RMR LLC is required to make certain pro rata distributions to each member of RMR LLC quarterly on the basis of the assumed tax liabilities of its members. For the nine months ended June 30, 2017 , pursuant to the RMR LLC operating agreement, RMR LLC made required quarterly tax distributions to holders of its membership units totaling $56,230 , of which $29,097 was distributed to us and $27,133 was distributed to ABP Trust, based on each membership unit holder’s respective ownership percentage. The $29,097 distributed to us was eliminated in our condensed consolidated financial statements, and the $27,133 distributed to ABP Trust was recorded as a reduction of its noncontrolling interest. We used funds from these distributions for payment of certain U.S. federal and state income tax liabilities. We also expect to use funds from these distributions to pay part of our obligations under the tax receivable agreement. Other In June 2017, we became aware that we had been a victim of a criminal fraud that law enforcement authorities refer to as business email compromise fraud. This fraud involved a person pretending to be the representative of the seller in a property acquisition transaction for one of our Managed REITs. The imposter provided fraudulent wire instructions to one of our senior employees. As a result, funds were sent by wire transfer to an account that was believed to be, but in fact was not, the seller’s account, which resulted in our incurring a loss of $590 , as well as additional expenses of $95 in connection with this matter for the quarter ended June 30, 2017. We recorded these amounts in general and administrative expense in our condensed consolidated statements of comprehensive income. We are working with law enforcement authorities and the banks involved in the wire transfer to pursue recovery of the $590 , but at this time we do not know whether we will be able to recover any of these funds, and we have been advised that it may take several months before we are better able to evaluate our recovery prospects. The Managed REIT did not incur any loss in connection with this matter.

Shareholders' Equity

Shareholders' Equity	9 Months Ended
Shareholders' Equity	Jun. 30, 2017
Stockholders' Equity Note [Abstract]
Shareholders' Equity	Shareholders’ Equity Issuances On March 29, 2017, under our equity compensation plan, we granted 2,500 of our Class A Common Shares valued at $48.20 per share, the closing price of our Class A Common Shares on the Nasdaq Stock Market LLC on that day, to each of our Managing Directors and Independent Directors as part of their annual compensation. These Class A Common Shares awarded to our Independent Directors vested immediately and are included in general and administrative expense in our condensed consolidated statements of comprehensive income. In connection with the grant of Class A Common Shares to our Managing Directors and Independent Directors, RMR LLC concurrently issued 12,500 Class A Units to RMR Inc., consistent with the terms of the RMR LLC operating agreement. On March 29, 2017, we withheld 375 of the Class A Common Shares awarded to one of our Independent Directors to fund that Independent Director's resulting minimum required tax withholding obligation. The aggregate value of the withheld shares was $18 , which is reflected as a decrease to shareholders' equity in our condensed consolidated balance sheet. In connection with the acquisition of 375 Class A Common Shares, and as required by the RMR LLC operating agreement, RMR LLC concurrently acquired 375 Class A Units from RMR Inc. On June 30, 2017, we withheld 47 of the Class A Common Shares awarded to one of our former employees in satisfaction of tax withholding and payment obligations in connection with the vesting of awards of restricted common shares. The aggregate value of the withheld shares was $2 , which is reflected as a decrease to shareholders' equity in our condensed consolidated balance sheet. In connection with the acquisition of 47 Class A Common Shares, and as required by the RMR LLC operating agreement, RMR LLC concurrently acquired 47 Class A Units from RMR Inc. Distributions On November 17, 2016, we paid a quarterly dividend on our Class A Common Shares and Class B-1 Common Shares, in the amount of $0.25 per Class A Common Share and Class B-1 Common Share, or $4,021 . This dividend was paid to our shareholders of record as of the close of business on October 21, 2016. This dividend was funded by a distribution from RMR LLC to holders of its membership units in the amount of $0.25 per unit, or $7,771 , of which $4,021 was distributed to us based on our then aggregate ownership of 16,082,432 membership units of RMR LLC and $3,750 was distributed to ABP Trust based on its ownership of 15,000,000 membership units of RMR LLC. On February 21, 2017, we paid a quarterly dividend on our Class A Common Shares and Class B-1 Common Shares, in the amount of $0.25 per Class A Common Share and Class B-1 Common Share, or $4,020 . This dividend was paid to our shareholders of record as of the close of business on January 23, 2017. This dividend was funded by a distribution from RMR LLC to holders of its membership units in the amount of $0.25 per unit, or $7,770 , of which $4,020 was distributed to us based on our then aggregate ownership of 16,082,432 membership units of RMR LLC and $3,750 was distributed to ABP Trust based on its ownership of 15,000,000 membership units of RMR LLC. On May 18, 2017, we paid a quarterly dividend on our Class A Common Shares and Class B-1 Common Shares, in the amount of $0.25 per Class A Common Share and Class B-1 Common Share, or $4,024 . This dividend was paid to our shareholders of record as of the close of business on April 21, 2017. This dividend was funded by a distribution from RMR LLC to holders of its membership units in the amount of $0.25 per unit, or $7,774 , of which $4,024 was distributed to us based on our then aggregate ownership of 16,094,557 membership units of RMR LLC and $3,750 was distributed to ABP Trust based on its ownership of 15,000,000 membership units of RMR LLC. On July 12, 2017, we declared a quarterly dividend on our Class A Common Shares and Class B-1 Common Shares payable to our shareholders of record as of July 24, 2017, in the amount of $0.25 per Class A Common Share and Class B-1 Common Share, or $4,024 . This dividend will be funded by a distribution from RMR LLC to holders of its membership units in the amount of $0.25 per unit, or $7,774 , of which $4,024 will be distributed to us based on our then aggregate ownership of 16,094,510 membership units of RMR LLC and $3,750 will be distributed to ABP Trust based on its ownership of 15,000,000 membership units of RMR LLC. We expect to pay this dividend on or about August 17, 2017.

Per Common Share Amounts

Per Common Share Amounts	9 Months Ended
Per Common Share Amounts	Jun. 30, 2017
Earnings Per Share [Abstract]
Per Common Share Amounts	Per Common Share Amounts Earnings per common share reflects net income attributable to RMR Inc. divided by our weighted average common shares outstanding. Basic and diluted weighted average common shares outstanding represents our outstanding Class A Common Shares and our Class B-1 Common Shares during the applicable periods. Our Class B-2 Common Shares, which are paired with ABP Trust’s Class A Units, have no independent economic interest in RMR Inc. and thus are not included as common stock outstanding for purposes of calculating our net income attributable to RMR Inc. per share. Unvested Class A Common Shares granted to our employees are deemed participating securities for purposes of calculating earnings per common share, as they have dividend rights. We calculate earnings per share using the two-class method. Under the two-class method, we allocate earnings proportionately to vested Class A Common Shares, Class B-1 Common Shares and unvested Class A Common Shares outstanding for the period. Earnings attributable to unvested Class A Common Shares are excluded from earnings per share under the two-class method as reflected in our condensed consolidated statements of comprehensive income. The calculation of basic and diluted earnings per share is as follows: Three Months Ended June 30, Nine Months Ended June 30, 2017 2016 2017 2016 Basic EPS Numerator: Net income attributable to RMR Inc. $ 6,857 $ 6,698 $ 37,250 $ 29,866 Income attributable to unvested participating securities (25 ) — (135 ) — Net income attributable to RMR Inc. used in calculating basic EPS $ 6,832 $ 6,698 $ 37,115 $ 29,866 Denominator: Weighted average common shares outstanding - basic 16,037 16,008 16,029 16,003 Net income attributable to RMR Inc. per common share - basic $ 0.43 $ 0.42 $ 2.32 $ 1.87 Diluted EPS Numerator: Net income attributable to RMR Inc. $ 6,857 $ 6,698 $ 37,250 $ 29,866 Income attributable to unvested participating securities (25 ) — (135 ) — Net income attributable to RMR Inc. used in calculating diluted EPS $ 6,832 $ 6,698 $ 37,115 $ 29,866 Denominator: Weighted average common shares outstanding - basic 16,037 16,008 16,029 16,003 Dilutive effect of incremental unvested shares 21 — 15 — Weighted average common shares outstanding - diluted 16,058 16,008 16,044 16,003 Net income attributable to RMR Inc. per common share - diluted $ 0.43 $ 0.42 $ 2.31 $ 1.87 The 15,000,000 Class A Units that we do not own may be redeemed for our Class A Common Shares on a one for one basis, or upon such redemption, we may elect to pay cash instead of issuing Class A Common Shares. Upon redemption of a Class A Unit, our Class B-2 Common Shares “paired” with such unit is cancelled for no additional consideration. If all outstanding Class A Units that we do not own were redeemed for our Class A Common Shares in the periods presented, our Class A Common Shares outstanding as of June 30, 2017, would have been 30,094,510 . In computing the dilutive effect, if any, that the aforementioned redemption would have on earnings per share, we considered that net income available to holders of our Class A Common Shares would increase due to elimination of the noncontrolling interest (including any tax impact). For the periods presented, such redemption is not reflected in diluted earnings per share as the assumed redemption would be anti-dilutive.

Net Income Attributable to RMR

Net Income Attributable to RMR Inc	9 Months Ended
Net Income Attributable to RMR Inc	Jun. 30, 2017
Net Income Attributable to RMR Inc.
Net Income Attributable to RMR Inc.	Net Income Attributable to RMR Inc. Net income attributable to RMR Inc. for the three and nine months ended June 30, 2017 and 2016 , is calculated as follows: Three Months Ended June 30, Nine Months Ended June 30, 2017 2016 2017 2016 Income before income tax expense and equity in earnings (loss) of investee $ 22,129 $ 21,906 $ 120,525 $ 123,433 Add: RMR Inc. franchise tax expense and interest income 147 220 456 443 Less: equity in earnings (loss) of investee 4 — (161 ) — Less: incentive fee allocable to ABP Trust (1) — — — (26,611 ) Net income before noncontrolling interest 22,280 22,126 120,820 97,265 Less: noncontrolling interest (10,748 ) (10,704 ) (58,303 ) (47,052 ) Net income attributable to RMR Inc. before income tax expense 11,532 11,422 62,517 50,213 Less: income tax expense attributable to RMR Inc. (4,528 ) (4,504 ) (24,811 ) (19,904 ) Less: RMR Inc. franchise tax expense and interest income (147 ) (220 ) (456 ) (443 ) Net income attributable to RMR Inc. $ 6,857 $ 6,698 $ 37,250 $ 29,866 (1) Under the RMR LLC operating agreement, ABP Trust was entitled to receive a pro rata share of any incentive business management fee earned for the 2015 calendar year, based on the number of days in 2015 to June 5, 2015. Accordingly, $26,611 of the incentive business management fee earned on December 31, 2015 was allocated to ABP Trust.

Segment Reporting

Segment Reporting	9 Months Ended
Segment Reporting	Jun. 30, 2017
Segment Reporting [Abstract]
Segment Reporting	Segment Reporting We have one separately reportable business segment, which is RMR LLC. In the tables below, our All Other Operations includes the operations of RMR Inc., RMR Advisors, Tremont Advisors and RMR Intl. Three Months Ended June 30, 2017 All Other RMR LLC (1) Operations Total Revenues: Management services $ 44,644 $ — $ 44,644 Reimbursable payroll and related costs 9,839 — 9,839 Advisory services — 1,019 1,019 Total revenues 54,483 1,019 55,502 Expenses: Compensation and benefits 24,088 681 24,769 General and administrative 8,057 482 8,539 Depreciation and amortization 321 146 467 Total expenses 32,466 1,309 33,775 Operating income (loss) 22,017 (290 ) 21,727 Interest and other income 377 25 402 Income before income tax expense and equity in earnings of investee 22,394 (265 ) 22,129 Income tax expense — (4,528 ) (4,528 ) Equity in earnings of investee — 4 4 Net income (loss) $ 22,394 $ (4,789 ) $ 17,605 (1) Intersegment revenues of $221 recognized by RMR LLC for services provided to the All Other Operations segment have been eliminated in the condensed consolidated financial statements. Nine Months Ended June 30, 2017 All Other RMR LLC (1) Operations Total Revenues: Management services $ 183,036 $ — $ 183,036 Reimbursable payroll and related costs 29,023 — 29,023 Advisory services — 3,033 3,033 Total revenues 212,059 3,033 215,092 Expenses: Compensation and benefits 70,842 1,708 72,550 General and administrative 20,539 987 21,526 Depreciation and amortization 1,072 478 1,550 Total expenses 92,453 3,173 95,626 Operating income (loss) 119,606 (140 ) 119,466 Interest and other income 657 402 1,059 Income before income tax expense and equity in loss of investee 120,263 262 120,525 Income tax expense — (24,811 ) (24,811 ) Equity in loss of investee — (161 ) (161 ) Net income (loss) $ 120,263 $ (24,710 ) $ 95,553 (1) Intersegment revenues of $872 recognized by RMR LLC for services provided to the All Other Operations segment have been eliminated in the condensed consolidated financial statements. Three Months Ended June 30, 2016 All Other RMR LLC (1) Operations Total Revenues Management services $ 41,867 $ — $ 41,867 Reimbursable payroll and related costs 9,744 — 9,744 Advisory services — 600 600 Total revenues 51,611 600 52,211 Expenses Compensation and benefits 22,445 274 22,719 Separation costs 1,195 — 1,195 General and administrative 5,778 332 6,110 Depreciation and amortization 349 — 349 Total expenses 29,767 606 30,373 Operating income (loss) 21,844 (6 ) 21,838 Interest and other income 62 6 68 Income before income tax expense 21,906 — 21,906 Income tax expense — (4,504 ) (4,504 ) Net income (loss) $ 21,906 $ (4,504 ) $ 17,402 (1) Intersegment revenues of $192 recognized by RMR LLC for services provided to the All Other Operations segment have been eliminated in the condensed consolidated financial statements. Nine Months Ended June 30, 2016 All Other RMR LLC (1) Operations Total Revenues Management services $ 182,882 $ 58 $ 182,940 Reimbursable payroll and related costs 25,993 — 25,993 Advisory services — 1,741 1,741 Total revenues 208,875 1,799 210,674 Expenses Compensation and benefits 64,712 872 65,584 Separation costs 1,358 — 1,358 General and administrative 18,234 876 19,110 Depreciation and amortization 1,333 — 1,333 Total expenses 85,637 1,748 87,385 Operating income 123,238 51 123,289 Interest and other income 137 7 144 Income before income tax expense 123,375 58 123,433 Income tax expense (1 ) (19,903 ) (19,904 ) Net income (loss) $ 123,374 $ (19,845 ) $ 103,529 (1) Intersegment revenues of $737 recognized by RMR LLC for services provided to the All Other Operations segment have been eliminated in the condensed consolidated financial statements.

Separation Costs

Separation Costs	9 Months Ended
Separation Costs	Jun. 30, 2017
Separation Costs [Abstract]
Separation Costs	Separation Costs . We recognized separation costs of $1,195 and $1,358 for the three and nine months ended June 30, 2016, respectively, in connection with employment termination costs.

Recent Accounting Pronounceme18

Recent Accounting Pronouncements (Policies)	9 Months Ended
Recent Accounting Pronouncements (Policies)	Jun. 30, 2017
Accounting Policies [Abstract]
Recent Accounting Pronouncements	Recent Accounting Pronouncements In May 2014, the Financial Accounting Standards Board, or FASB, issued Accounting Standards Update, or ASU, No. 2014-09, Revenue from Contracts with Customers . The main provision of ASU No. 2014-09 is to recognize revenue when control of the goods or services transfers to the customer, as opposed to the existing guidance of recognizing revenue when the risk and rewards transfer to the customer. In July 2015, the FASB approved a one year deferral of the effective date for this ASU to interim and annual reporting periods beginning after December 15, 2017. We are continuing to evaluate this guidance; however, we do not expect its adoption to have a material impact on our condensed consolidated financial statements as our revenue recognition is expected to be unchanged under this new guidance, including variable consideration attributable to incentive fees. In February 2016, the FASB issued ASU No. 2016-02, Leases , which sets out the principles for the recognition, measurement, presentation and disclosure of leases for both parties to a contract (i.e., lessees and lessors). ASU No. 2016-02 requires lessees to apply a dual approach, classifying leases as either finance or operating leases based on the principle of whether or not the lease is effectively a financed purchase of the leased asset by the lessee. This classification will determine whether the lease expense is recognized based on an effective interest method or on a straight line basis over the term of the lease. A lessee is also required to record a right of use asset and a lease liability for all leases with a term of greater than 12 months regardless of their classification. Leases with a term of 12 months or less will be accounted for similar to existing guidance for operating leases today. ASU No. 2016-02 is effective for reporting periods beginning after December 15, 2018, with early adoption permitted. We are currently assessing the potential impact the adoption of ASU No. 2016-02 will have on our condensed consolidated financial statements. In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments , which requires that entities use a new forward looking “expected loss” model that generally will result in the earlier recognition of allowance for credit losses. The measurement of expected credit losses is based upon historical experience, current conditions and reasonable and supportable forecasts that affect the collectability of the reported amount. ASU No. 2016-13 will become effective for fiscal years beginning after December 15, 2019. We are continuing to assess this guidance, but we have not historically experienced credit losses from our Client Companies and do not expect the adoption of ASU No. 2016-13 to have a material impact on our condensed consolidated financial statements.

Income Taxes (Tables)

Income Taxes (Tables)	9 Months Ended
Income Taxes (Tables)	Jun. 30, 2017
Income Tax Disclosure [Abstract]
Schedule of reconciliation of the statutory income tax rate to the effective tax rate	A reconciliation of the statutory income tax rate to the effective tax rate is as follows: Three Months Ended June 30, Nine Months Ended June 30, 2017 2016 2017 2016 Income taxes computed at the federal statutory rate 35.0 % 35.0 % 35.0 % 35.0 % State taxes, net of federal benefit 2.5 % 2.7 % 2.5 % 2.0 % Net income attributable to noncontrolling interest (17.0 )% (17.1 )% (16.9 )% (20.9 )% Total 20.5 % 20.6 % 20.6 % 16.1 %

Fair Value of Financial Instr20

Fair Value of Financial Instruments (Tables)	9 Months Ended
Fair Value of Financial Instruments (Tables)	Jun. 30, 2017
Fair Value Disclosures [Abstract]
Schedule of assets and liabilities measured at fair value	The following are our assets and liabilities that all have been measured at fair value using Level 1 inputs in the fair value hierarchy as of June 30, 2017 and September 30, 2016 : June 30, September 30, 2017 2016 Money market funds included in cash and cash equivalents $ 134,398 $ 57,741 Current portion of due from related parties related to share based payment awards 1,363 4,977 Long term portion of due from related parties related to share based payment awards 7,278 7,754 Current portion of employer compensation liability related to share based payment awards included in accounts payable, accrued expenses and deposits 1,363 4,977 Long term portion of employer compensation liability related to share based payment awards 7,278 7,754

Related Person Transactions (Ta

Related Person Transactions (Tables)	9 Months Ended
Related Person Transactions (Tables)	Jun. 30, 2017
Related Party Transactions [Abstract]
Schedule of related party transactions	For the three and nine months ended June 30, 2017 and 2016 , we recognized revenues from related parties as set forth in the following table: Three Months Ended June 30, Nine Months Ended June 30, 2017 2016 2017 2016 $ % $ % $ % $ % Managed REITs: GOV $ 9,139 16.4 % $ 8,310 15.9 % $ 26,302 12.3 % $ 23,351 11.1 % HPT 10,636 19.2 % 9,840 18.8 % 84,156 39.1 % 90,621 43.0 % SIR 11,089 20.0 % 10,824 20.7 % 33,108 15.4 % 30,722 14.6 % SNH 15,653 28.2 % 14,855 28.5 % 45,433 21.1 % 42,190 20.0 % 46,517 83.8 % 43,829 83.9 % 188,999 87.9 % 186,884 88.7 % Managed Operators: Five Star 2,439 4.4 % 2,387 4.6 % 7,206 3.4 % 7,109 3.4 % Sonesta 671 1.2 % 594 1.1 % 1,745 0.8 % 1,503 0.7 % TA 3,659 6.6 % 4,013 7.7 % 10,822 5.0 % 10,959 5.2 % 6,769 12.2 % 6,994 13.4 % 19,773 9.2 % 19,571 9.3 % Other: AIC 60 0.1 % 60 0.1 % 180 0.1 % 180 0.1 % RIF 613 1.1 % 600 1.1 % 1,826 0.8 % 1,741 0.8 % ABP Trust 1,024 1.9 % 728 1.5 % 2,755 1.3 % 2,240 1.1 % 1,697 3.1 % 1,388 2.7 % 4,761 2.2 % 4,161 2.0 % Total revenues from related parties 54,983 99.1 % 52,211 100.0 % 213,533 99.3 % 210,616 100.0 % Other unrelated parties 519 0.9 % — — % 1,559 0.7 % 58 — % $ 55,502 100.0 % $ 52,211 100.0 % $ 215,092 100.0 % $ 210,674 100.0 % The following table represents amounts due from related parties as of the dates listed: June 30, September 30, 2017 2016 Managed REITs: GOV $ 5,832 $ 6,165 HPT 11,973 7,800 SIR 6,244 7,190 SNH 8,801 9,733 32,850 30,888 Managed Operators: Five Star 359 291 Sonesta 24 5 TA 436 711 819 1,007 Other Client Companies: AIC 20 21 RIF 34 17 ABP Trust 582 683 636 721 $ 34,305 $ 32,616

Per Common Share Amounts (Table

Per Common Share Amounts (Tables)	9 Months Ended
Per Common Share Amounts (Tables)	Jun. 30, 2017
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Diluted, by Common Class, Including Two Class Method	The calculation of basic and diluted earnings per share is as follows: Three Months Ended June 30, Nine Months Ended June 30, 2017 2016 2017 2016 Basic EPS Numerator: Net income attributable to RMR Inc. $ 6,857 $ 6,698 $ 37,250 $ 29,866 Income attributable to unvested participating securities (25 ) — (135 ) — Net income attributable to RMR Inc. used in calculating basic EPS $ 6,832 $ 6,698 $ 37,115 $ 29,866 Denominator: Weighted average common shares outstanding - basic 16,037 16,008 16,029 16,003 Net income attributable to RMR Inc. per common share - basic $ 0.43 $ 0.42 $ 2.32 $ 1.87 Diluted EPS Numerator: Net income attributable to RMR Inc. $ 6,857 $ 6,698 $ 37,250 $ 29,866 Income attributable to unvested participating securities (25 ) — (135 ) — Net income attributable to RMR Inc. used in calculating diluted EPS $ 6,832 $ 6,698 $ 37,115 $ 29,866 Denominator: Weighted average common shares outstanding - basic 16,037 16,008 16,029 16,003 Dilutive effect of incremental unvested shares 21 — 15 — Weighted average common shares outstanding - diluted 16,058 16,008 16,044 16,003 Net income attributable to RMR Inc. per common share - diluted $ 0.43 $ 0.42 $ 2.31 $ 1.87
Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method	The calculation of basic and diluted earnings per share is as follows: Three Months Ended June 30, Nine Months Ended June 30, 2017 2016 2017 2016 Basic EPS Numerator: Net income attributable to RMR Inc. $ 6,857 $ 6,698 $ 37,250 $ 29,866 Income attributable to unvested participating securities (25 ) — (135 ) — Net income attributable to RMR Inc. used in calculating basic EPS $ 6,832 $ 6,698 $ 37,115 $ 29,866 Denominator: Weighted average common shares outstanding - basic 16,037 16,008 16,029 16,003 Net income attributable to RMR Inc. per common share - basic $ 0.43 $ 0.42 $ 2.32 $ 1.87 Diluted EPS Numerator: Net income attributable to RMR Inc. $ 6,857 $ 6,698 $ 37,250 $ 29,866 Income attributable to unvested participating securities (25 ) — (135 ) — Net income attributable to RMR Inc. used in calculating diluted EPS $ 6,832 $ 6,698 $ 37,115 $ 29,866 Denominator: Weighted average common shares outstanding - basic 16,037 16,008 16,029 16,003 Dilutive effect of incremental unvested shares 21 — 15 — Weighted average common shares outstanding - diluted 16,058 16,008 16,044 16,003 Net income attributable to RMR Inc. per common share - diluted $ 0.43 $ 0.42 $ 2.31 $ 1.87

Net Income Attributable to RM23

Net Income Attributable to RMR Inc (Tables)	9 Months Ended
Net Income Attributable to RMR Inc (Tables)	Jun. 30, 2017
Net Income Attributable to RMR Inc.
Schedule of net income attributable to parent	Net income attributable to RMR Inc. for the three and nine months ended June 30, 2017 and 2016 , is calculated as follows: Three Months Ended June 30, Nine Months Ended June 30, 2017 2016 2017 2016 Income before income tax expense and equity in earnings (loss) of investee $ 22,129 $ 21,906 $ 120,525 $ 123,433 Add: RMR Inc. franchise tax expense and interest income 147 220 456 443 Less: equity in earnings (loss) of investee 4 — (161 ) — Less: incentive fee allocable to ABP Trust (1) — — — (26,611 ) Net income before noncontrolling interest 22,280 22,126 120,820 97,265 Less: noncontrolling interest (10,748 ) (10,704 ) (58,303 ) (47,052 ) Net income attributable to RMR Inc. before income tax expense 11,532 11,422 62,517 50,213 Less: income tax expense attributable to RMR Inc. (4,528 ) (4,504 ) (24,811 ) (19,904 ) Less: RMR Inc. franchise tax expense and interest income (147 ) (220 ) (456 ) (443 ) Net income attributable to RMR Inc. $ 6,857 $ 6,698 $ 37,250 $ 29,866 (1) Under the RMR LLC operating agreement, ABP Trust was entitled to receive a pro rata share of any incentive business management fee earned for the 2015 calendar year, based on the number of days in 2015 to June 5, 2015. Accordingly, $26,611 of the incentive business management fee earned on December 31, 2015 was allocated to ABP Trust.

Segment Reporting (Tables)

Segment Reporting (Tables)	9 Months Ended
Segment Reporting (Tables)	Jun. 30, 2017
Segment Reporting [Abstract]
Schedule of segment reporting information	Three Months Ended June 30, 2017 All Other RMR LLC (1) Operations Total Revenues: Management services $ 44,644 $ — $ 44,644 Reimbursable payroll and related costs 9,839 — 9,839 Advisory services — 1,019 1,019 Total revenues 54,483 1,019 55,502 Expenses: Compensation and benefits 24,088 681 24,769 General and administrative 8,057 482 8,539 Depreciation and amortization 321 146 467 Total expenses 32,466 1,309 33,775 Operating income (loss) 22,017 (290 ) 21,727 Interest and other income 377 25 402 Income before income tax expense and equity in earnings of investee 22,394 (265 ) 22,129 Income tax expense — (4,528 ) (4,528 ) Equity in earnings of investee — 4 4 Net income (loss) $ 22,394 $ (4,789 ) $ 17,605 (1) Intersegment revenues of $221 recognized by RMR LLC for services provided to the All Other Operations segment have been eliminated in the condensed consolidated financial statements. Nine Months Ended June 30, 2017 All Other RMR LLC (1) Operations Total Revenues: Management services $ 183,036 $ — $ 183,036 Reimbursable payroll and related costs 29,023 — 29,023 Advisory services — 3,033 3,033 Total revenues 212,059 3,033 215,092 Expenses: Compensation and benefits 70,842 1,708 72,550 General and administrative 20,539 987 21,526 Depreciation and amortization 1,072 478 1,550 Total expenses 92,453 3,173 95,626 Operating income (loss) 119,606 (140 ) 119,466 Interest and other income 657 402 1,059 Income before income tax expense and equity in loss of investee 120,263 262 120,525 Income tax expense — (24,811 ) (24,811 ) Equity in loss of investee — (161 ) (161 ) Net income (loss) $ 120,263 $ (24,710 ) $ 95,553 (1) Intersegment revenues of $872 recognized by RMR LLC for services provided to the All Other Operations segment have been eliminated in the condensed consolidated financial statements. Three Months Ended June 30, 2016 All Other RMR LLC (1) Operations Total Revenues Management services $ 41,867 $ — $ 41,867 Reimbursable payroll and related costs 9,744 — 9,744 Advisory services — 600 600 Total revenues 51,611 600 52,211 Expenses Compensation and benefits 22,445 274 22,719 Separation costs 1,195 — 1,195 General and administrative 5,778 332 6,110 Depreciation and amortization 349 — 349 Total expenses 29,767 606 30,373 Operating income (loss) 21,844 (6 ) 21,838 Interest and other income 62 6 68 Income before income tax expense 21,906 — 21,906 Income tax expense — (4,504 ) (4,504 ) Net income (loss) $ 21,906 $ (4,504 ) $ 17,402 (1) Intersegment revenues of $192 recognized by RMR LLC for services provided to the All Other Operations segment have been eliminated in the condensed consolidated financial statements. Nine Months Ended June 30, 2016 All Other RMR LLC (1) Operations Total Revenues Management services $ 182,882 $ 58 $ 182,940 Reimbursable payroll and related costs 25,993 — 25,993 Advisory services — 1,741 1,741 Total revenues 208,875 1,799 210,674 Expenses Compensation and benefits 64,712 872 65,584 Separation costs 1,358 — 1,358 General and administrative 18,234 876 19,110 Depreciation and amortization 1,333 — 1,333 Total expenses 85,637 1,748 87,385 Operating income 123,238 51 123,289 Interest and other income 137 7 144 Income before income tax expense 123,375 58 123,433 Income tax expense (1 ) (19,903 ) (19,904 ) Net income (loss) $ 123,374 $ (19,845 ) $ 103,529 (1) Intersegment revenues of $737 recognized by RMR LLC for services provided to the All Other Operations segment have been eliminated in the condensed consolidated financial statements.

Basis of Presentation (Details)

Basis of Presentation (Details) - shares	Nov. 28, 2016	Jun. 30, 2017
Class B membership units
Related Party Transaction [Line Items]
Membership units (in units)		1,000,000
RMR LLC
Related Party Transaction [Line Items]
Ownership percentage		51.80%
Class A common shares \| Class A membership units
Related Party Transaction [Line Items]
Membership units (in units)		15,094,510
Capital Unit Redeemable Class A Units \| ABP Trust
Related Party Transaction [Line Items]
Membership units (in units)		15,000,000
Ownership percentage		48.20%
Tremont Realty Capital LLC \| General Partner
Related Party Transaction [Line Items]
Ownership percentage acquired	0.50%

Revenue Recognition (Details)

Revenue Recognition (Details) - Managed REITs - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Jun. 30, 2017
Business Management and Incentive Fees
Business management fees as a percentage of transferred real estate assets			0.50%
Business management fees as a percentage of average invested capital below the threshold limit			0.70%
Maximum threshold amount for calculating the business management fees			$ 250,000
Business management fees as a percentage of average invested capital above the threshold limit			0.50%
Minimum threshold amount for calculating the business management fees			$ 250,000
Business management fees as a percent of average market capitalization below the threshold limit			0.70%
Business management fees as a percent of average market capitalization above the threshold limit			0.50%
Contingent incentive business management fee percentage			12.00%
Measurement period for calculating the annual incentive fee as of December 31, 2016	3 years	2 years
Measurement period for calculating the annual incentive fee after December 31, 2016			3 years

Revenue Recognition - Business

Revenue Recognition - Business Management Fees (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Jan. 31, 2016	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Managed REITs
Related Party Transaction [Line Items]
Aggregate base business management fees				$ 28,643	$ 26,623	$ 84,816	$ 76,628
Aggregate incentive business management fees	$ 52,407	$ 62,263	$ 62,263			$ 52,407	62,263
Managed Operators, ABP Trust and AIC
Related Party Transaction [Line Items]
Business management fee percent based on management agreements						0.60%
Aggregate business management fees				$ 6,650	$ 6,804	$ 19,372	$ 19,121
AIC
Related Party Transaction [Line Items]
Business management fee percent based on total premiums paid						3.00%

Revenue Recognition - Property

Revenue Recognition - Property Management Fees (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 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	$ 9,238	$ 8,440	$ 26,089	$ 24,870

Revenue Recognition - Reimbursa

Revenue Recognition - Reimbursable Payroll and Related Costs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Deferred Revenue Disclosure [Abstract]
Reimbursable payroll and related costs	$ 9,839	$ 9,744	$ 29,023	$ 25,993
Equity based compensation expense and related reimbursements	$ 892	$ 2,128	$ 3,386	$ 4,971

Revenue Recognition - Additiona

Revenue Recognition - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Related Party Transaction [Line Items]
Advisory fees	$ 1,019	$ 600	$ 3,033	$ 1,741
Management services revenue	44,644	41,867	$ 183,036	182,940
Termination and Cooperation Agreement
Related Party Transaction [Line Items]
Transition services revenue		0		58
RIF
Related Party Transaction [Line Items]
Advisory fee percent			0.85%
RMR Advisors and Tremont Advisors
Related Party Transaction [Line Items]
Advisory fees	613	$ 600	$ 1,826	$ 1,741
Tremont Advisors
Related Party Transaction [Line Items]
Advisory fees	406		1,207
Management services revenue	$ 113		$ 352
Tremont Advisors
Related Party Transaction [Line Items]
Advisory fee percentage based on weighted average outstanding balance of strategic investments			1.35%
Advisory fee percentage based on outstanding principal balance of outstanding loans			0.50%
Minimum \| Tremont Advisors
Related Party Transaction [Line Items]
Advisory fee percentage based on aggregate principal amounts of loan originate	0.50%		0.50%
Maximum \| Tremont Advisors
Related Party Transaction [Line Items]
Advisory fee percentage based on aggregate principal amounts of loan originate	1.00%		1.00%

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
Income Taxes (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Income Tax Disclosure [Abstract]
Income tax expense	$ 4,528	$ 4,504	$ 24,811	$ 19,904
Federal income tax expense	3,978	2,837	21,797	16,182
State income tax expense	$ 550	$ 1,667	$ 3,014	$ 3,722

Income Taxes - Reconciliation o

Income Taxes - Reconciliation of Income Tax Rate (Details)	3 Months Ended		9 Months Ended
Income Taxes - Reconciliation of Income Tax Rate (Details)	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Income Tax Disclosure [Abstract]
Income taxes computed at the federal statutory rate	35.00%	35.00%	35.00%	35.00%
State taxes, net of federal benefit	2.50%	2.70%	2.50%	2.00%
Net income attributable to noncontrolling interest	(17.00%)	(17.10%)	(16.90%)	(20.90%)
Total	20.50%	20.60%	20.60%	16.10%

Fair Value of Financial Instr33

Fair Value of Financial Instruments (Details) - Recurring basis - Level 1 - USD ($) $ in Thousands	Jun. 30, 2017	Sep. 30, 2016
Schedule of assets and liabilities measured at fair value
Money market funds included in cash and cash equivalents	$ 134,398	$ 57,741
Current portion of due from related parties related to share based payment awards	1,363	4,977
Long term portion of due from related parties related to share based payment awards	7,278	7,754
Current portion of employer compensation liability related to share based payment awards included in accounts payable, accrued expenses and deposits	1,363	4,977
Long term portion of employer compensation liability related to share based payment awards	$ 7,278	$ 7,754

Fair Value of Financial Instr34

Fair Value of Financial Instruments - Additional Information (Details) - Tremont Realty Capital LLC - USD ($) $ in Thousands	1 Months Ended
	Aug. 31, 2016	Jun. 30, 2017	Sep. 30, 2016
Business Acquisition [Line Items]
Cash consideration	$ 2,466
Contingent consideration	$ 1,270	$ 715	$ 1,257
Duration of potential earn out	2 years

Related Person Transactions (De

Related Person Transactions (Details) - shares	Jun. 30, 2017	Sep. 30, 2016
ABP Trust \| Class A common shares
Related Party Transaction [Line Items]
Common stock shares outstanding (in shares)	146,213
ABP Trust \| Class A Units
Related Party Transaction [Line Items]
Common stock shares outstanding (in shares)	15,000,000
GOV \| Class A common shares
Related Party Transaction [Line Items]
Shares owned (in shares)	1,214,225
HPT \| Class A common shares
Related Party Transaction [Line Items]
Shares owned (in shares)	2,503,777
SIR \| Class A common shares
Related Party Transaction [Line Items]
Shares owned (in shares)	1,586,836
SNH \| Class A common shares
Related Party Transaction [Line Items]
Shares owned (in shares)	2,637,408
Class A common shares
Related Party Transaction [Line Items]
Common stock shares outstanding (in shares)	15,094,510	15,082,432
GOV
Related Party Transaction [Line Items]
Ownership percentage	2.50%
HPT
Related Party Transaction [Line Items]
Ownership percentage	1.40%
SIR
Related Party Transaction [Line Items]
Ownership percentage	1.90%
SNH
Related Party Transaction [Line Items]
Ownership percentage	1.30%
TA
Related Party Transaction [Line Items]
Ownership percentage	1.00%
Common shares \| Five Star \| Barry Portnoy
Related Party Transaction [Line Items]
Equity method investment ownership percentage	36.70%

Related Person Transactions - R

Related Person Transactions - Revenues from Related Parties (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Related Party Transaction [Line Items]
Revenue from related parties	$ 54,983	$ 52,211	$ 213,533	$ 210,616
Percentage of revenues from related parties	99.10%	100.00%	99.30%	100.00%
Revenue from unrelated parties	$ 519	$ 0	$ 1,559	$ 58
Percentage of revenues from unrelated parties	0.90%	0.00%	0.70%	0.00%
Total revenues	$ 55,502	$ 52,211	$ 215,092	$ 210,674
Percentage of revenue from related parties, net	100.00%	100.00%	100.00%	100.01724%
Managed REITs
Related Party Transaction [Line Items]
Revenue from related parties	$ 46,517	$ 43,829	$ 188,999	$ 186,884
Percentage of revenues from related parties	83.80%	83.90%	87.90%	88.70%
GOV
Related Party Transaction [Line Items]
Revenue from related parties	$ 9,139	$ 8,310	$ 26,302	$ 23,351
Percentage of revenues from related parties	16.40%	15.90%	12.30%	11.10%
HPT
Related Party Transaction [Line Items]
Revenue from related parties	$ 10,636	$ 9,840	$ 84,156	$ 90,621
Percentage of revenues from related parties	19.20%	18.80%	39.10%	43.00%
SIR
Related Party Transaction [Line Items]
Revenue from related parties	$ 11,089	$ 10,824	$ 33,108	$ 30,722
Percentage of revenues from related parties	20.00%	20.70%	15.40%	14.60%
SNH
Related Party Transaction [Line Items]
Revenue from related parties	$ 15,653	$ 14,855	$ 45,433	$ 42,190
Percentage of revenues from related parties	28.20%	28.50%	21.10%	20.00%
Managed Operators
Related Party Transaction [Line Items]
Revenue from related parties	$ 6,769	$ 6,994	$ 19,773	$ 19,571
Percentage of revenues from related parties	12.20%	13.40%	9.20%	9.30%
Five Star
Related Party Transaction [Line Items]
Revenue from related parties	$ 2,439	$ 2,387	$ 7,206	$ 7,109
Percentage of revenues from related parties	4.40%	4.60%	3.40%	3.40%
Sonesta
Related Party Transaction [Line Items]
Revenue from related parties	$ 671	$ 594	$ 1,745	$ 1,503
Percentage of revenues from related parties	1.20%	1.10%	0.80%	0.70%
TA
Related Party Transaction [Line Items]
Revenue from related parties	$ 3,659	$ 4,013	$ 10,822	$ 10,959
Percentage of revenues from related parties	6.60%	7.70%	5.00%	5.20%
Other
Related Party Transaction [Line Items]
Revenue from related parties	$ 1,697	$ 1,388	$ 4,761	$ 4,161
Percentage of revenues from related parties	3.10%	2.70%	2.20%	2.00%
AIC
Related Party Transaction [Line Items]
Revenue from related parties	$ 60	$ 60	$ 180	$ 180
Percentage of revenues from related parties	0.10%	0.10%	0.10%	0.10%
RIF
Related Party Transaction [Line Items]
Revenue from related parties	$ 613	$ 600	$ 1,826	$ 1,741
Percentage of revenues from related parties	1.10%	1.10%	0.80%	0.80%
ABP Trust
Related Party Transaction [Line Items]
Revenue from related parties	$ 1,024	$ 728	$ 2,755	$ 2,240
Percentage of revenues from related parties	1.90%	1.50%	1.30%	1.10%

Related Person Transactions - A

Related Person Transactions - Additional Information (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Jan. 31, 2016	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Related Party Transaction [Line Items]
Incentive fee allocated to related party		$ 26,611		$ 0	$ 0	$ 0	$ 26,611
Managed REITs
Related Party Transaction [Line Items]
Aggregate incentive business management fees	$ 52,407	$ 62,263	$ 62,263			52,407	62,263
ABP Trust and Managed REIT
Related Party Transaction [Line Items]
Rental expense				$ 1,056	$ 1,077	$ 3,165	$ 3,190

Related Person Transactions - D

Related Person Transactions - Due from/to Related Parties (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Sep. 30, 2016
Related Party Transaction [Line Items]
Due from related parties	$ 34,305	$ 32,616
Managed REITs
Related Party Transaction [Line Items]
Due from related parties	32,850	30,888
GOV
Related Party Transaction [Line Items]
Due from related parties	5,832	6,165
HPT
Related Party Transaction [Line Items]
Due from related parties	11,973	7,800
SIR
Related Party Transaction [Line Items]
Due from related parties	6,244	7,190
SNH
Related Party Transaction [Line Items]
Due from related parties	8,801	9,733
Managed Operators
Related Party Transaction [Line Items]
Due from related parties	819	1,007
Five Star
Related Party Transaction [Line Items]
Due from related parties	359	291
Sonesta
Related Party Transaction [Line Items]
Due from related parties	24	5
TA
Related Party Transaction [Line Items]
Due from related parties	436	711
Other
Related Party Transaction [Line Items]
Due from related parties	636	721
AIC
Related Party Transaction [Line Items]
Due from related parties	20	21
RIF
Related Party Transaction [Line Items]
Due from related parties	34	17
ABP Trust
Related Party Transaction [Line Items]
Due from related parties	$ 582	$ 683

Related Person Transactions - T

Related Person Transactions - Tax Related Payments (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2017	Jun. 30, 2017
ABP Trust \| Up C Transaction
Related Party Transaction [Line Items]
Tax receivable agreement, percent of payment		85.00%
Payments related to Tax Receivable Agreement		$ 0
Liability related to Tax Receivable Agreement		64,929
Forecast \| ABP Trust \| Up C Transaction
Related Party Transaction [Line Items]
Payments related to Tax Receivable Agreement	$ 2,900
RMR LLC
Related Party Transaction [Line Items]
Tax distributions		29,097
RMR LLC \| ABP Trust
Related Party Transaction [Line Items]
Tax distributions		27,133
RMR LLC \| RMR Group and ABP Trust
Related Party Transaction [Line Items]
Tax distributions		$ 56,230

Related Person Transactions - O

Related Person Transactions - Other (Details) - Business Email Compromise Fraud Loss $ in Thousands	3 Months Ended
	Jun. 30, 2017USD ($)
Unusual or Infrequent Item, or Both [Line Items]
Loss on business email compromise	$ 590
Additional expenses	$ 95

Shareholders' Equity (Details)

Shareholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands	Jul. 12, 2017	Jun. 30, 2017	May 18, 2017	Mar. 29, 2017	Feb. 21, 2017	Nov. 17, 2016	Sep. 30, 2016
Class A common shares
Class of Stock [Line Items]
Common stock shares outstanding (in shares)		15,094,510					15,082,432
Class A and B-1 common shares
Class of Stock [Line Items]
Dividends paid (in dollars per share)					$ 0.25	$ 0.25
Value of dividends paid			$ 4,024		$ 4,020	$ 4,021
Common stock shares outstanding (in shares)			16,094,557		16,082,432	16,082,432
RMR LLC
Class of Stock [Line Items]
Dividends paid (in dollars per share)			$ 0.25
Value of dividends paid			$ 7,774		$ 7,770	$ 7,771
Dividends declared (in dollars per share)			$ 0.25		$ 0.25	$ 0.25
RMR LLC \| Class A common shares
Class of Stock [Line Items]
Shares granted (in shares)				12,500
ABP Trust \| Class A common shares
Class of Stock [Line Items]
Value of dividends paid			$ 3,750		$ 3,750	$ 3,750
Common stock shares outstanding (in shares)		15,000,000
Subsequent Event \| Class A and B-1 common shares
Class of Stock [Line Items]
Value of dividends paid	$ 4,024
Common stock shares outstanding (in shares)	16,094,510
Subsequent Event \| RMR LLC
Class of Stock [Line Items]
Value of dividends paid	$ 7,774
Dividends declared (in dollars per share)	$ 0.25
Subsequent Event \| ABP Trust \| Class A common shares
Class of Stock [Line Items]
Value of dividends paid	$ 3,750
Director \| Class A common shares
Class of Stock [Line Items]
Shares granted (in shares)				2,500
Price per share (in dollars per share)				$ 48.2
Shares withheld for tax withholding (in shares)				375
Aggregate value of shares withheld for tax withholding				$ 18
Director \| RMR LLC \| Class A common shares
Class of Stock [Line Items]
Shares withheld for tax withholding (in shares)				375
Former employees \| Class A common shares
Class of Stock [Line Items]
Aggregate value of shares withheld for tax withholding		$ 2
Former employees \| RMR LLC \| Class A common shares
Class of Stock [Line Items]
Shares withheld for tax withholding (in shares)		47

Per Common Share Amounts - Sche

Per Common Share Amounts - Schedule of EPS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Numerator:
Net income attributable to RMR Inc.	$ 6,857	$ 6,698	$ 37,250	$ 29,866
Income attributable to unvested participating securities	(25)	0	(135)	0
Net income attributable to RMR Inc. used in calculating basic EPS	$ 6,832	$ 6,698	$ 37,115	$ 29,866
Denominator:
Weighted average common shares outstanding - basic (in shares)	16,037	16,008	16,029	16,003
Net income attributable to RMR Inc. per common share - basic (in dollars per share)	$ 0.43	$ 0.42	$ 2.32	$ 1.87
Numerator:
Net income attributable to RMR Inc.	$ 6,857	$ 6,698	$ 37,250	$ 29,866
Income attributable to unvested participating securities	(25)	0	(135)	0
Net income attributable to RMR Inc. used in calculating diluted EPS	$ 6,832	$ 6,698	$ 37,115	$ 29,866
Denominator:
Weighted average common shares outstanding - basic (in shares)	16,037	16,008	16,029	16,003
Dilutive effect of incremental unvested shares (in shares)	21	0	15	0
Weighted average common shares outstanding - diluted (in shares)	16,058	16,008	16,044	16,003
Net income attributable to RMR Inc. per common share - diluted (in dollars per share)	$ 0.43	$ 0.42	$ 2.31	$ 1.87

Per Common Share Amounts (Detai

Per Common Share Amounts (Details)	3 Months Ended		9 Months Ended
Per Common Share Amounts (Details)	Jun. 30, 2017shares	Jun. 30, 2016shares	Jun. 30, 2017shares	Jun. 30, 2016shares	Sep. 30, 2016shares
Class of Stock [Line Items]
Weighted average common stock shares outstanding diluted (in shares)	16,058,000	16,008,000	16,044,000	16,003,000
Class A membership units
Class of Stock [Line Items]
Conversion ratio			1
Weighted average common stock shares outstanding diluted (in shares)			30,094,510
Capital Unit Redeemable Class A Units
Class of Stock [Line Items]
Common stock shares authorized (in shares)	15,000,000		15,000,000
Class B-1 common shares
Class of Stock [Line Items]
Common stock shares authorized (in shares)	1,000,000		1,000,000		1,000,000
Conversion ratio			1

Net Income Attributable to RM44

Net Income Attributable to RMR Inc (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Net Income Attributable to RMR Inc.
Income before income tax expense and equity in earnings (loss) of investee		$ 22,129	$ 21,906	$ 120,525	$ 123,433
Add: RMR Inc. franchise tax expense and interest income		147	220	456	443
Less: equity in earnings (loss) of investee		4	0	(161)	0
Less: incentive fee allocable to ABP Trust	$ (26,611)	0	0	0	(26,611)
Net income before noncontrolling interest		22,280	22,126	120,820	97,265
Less: noncontrolling interest		(10,748)	(10,704)	(58,303)	(47,052)
Net income attributable to RMR Inc. before income tax expense		11,532	11,422	62,517	50,213
Less: income tax expense attributable to RMR Inc.		(4,528)	(4,504)	(24,811)	(19,904)
Less: RMR Inc. franchise tax expense and interest income		(147)	(220)	(456)	(443)
Net income attributable to RMR Inc.		$ 6,857	$ 6,698	$ 37,250	$ 29,866

Net Income Attributable to RM45

Net Income Attributable to RMR Inc - Additional Information (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Related Party Transaction [Line Items]
Incentive fee allocated to related party	$ 26,611	$ 0	$ 0	$ 0	$ 26,611
ABP Trust
Related Party Transaction [Line Items]
Incentive fee allocated to related party	$ 26,611

Segment Reporting (Details)

Segment Reporting (Details) $ in Thousands	3 Months Ended		9 Months Ended
Segment Reporting (Details) $ in Thousands	Jun. 30, 2017USD ($)	Jun. 30, 2016USD ($)	Jun. 30, 2017USD ($)segment	Jun. 30, 2016USD ($)
Segment Reporting
Number of reportable business segments \| segment			1
Revenues:
Management services	$ 44,644	$ 41,867	$ 183,036	$ 182,940
Reimbursable payroll and related costs	9,839	9,744	29,023	25,993
Advisory services	1,019	600	3,033	1,741
Total revenues	55,502	52,211	215,092	210,674
Expenses:
Compensation and benefits	24,769	22,719	72,550	65,584
Separation costs	0	1,195	0	1,358
General and administrative	8,539	6,110	21,526	19,110
Depreciation and amortization	467	349	1,550	1,333
Total expenses	33,775	30,373	95,626	87,385
Operating income (loss)	21,727	21,838	119,466	123,289
Interest and other income	402	68	1,059	144
Income before income tax expense and equity in earnings of investee	22,129	21,906	120,525	123,433
Income tax expense	(4,528)	(4,504)	(24,811)	(19,904)
Equity in earnings of investee	4	0	(161)	0
Net income (loss)	17,605	17,402	95,553	103,529
Intersegment Eliminations
Revenues:
Total revenues	221	192	872	737
RMR LLC
Revenues:
Management services	44,644	41,867	183,036	182,882
Reimbursable payroll and related costs	9,839	9,744	29,023	25,993
Advisory services	0	0	0	0
Total revenues	54,483	51,611	212,059	208,875
Expenses:
Compensation and benefits	24,088	22,445	70,842	64,712
Separation costs		1,195		1,358
General and administrative	8,057	5,778	20,539	18,234
Depreciation and amortization	321	349	1,072	1,333
Total expenses	32,466	29,767	92,453	85,637
Operating income (loss)	22,017	21,844	119,606	123,238
Interest and other income	377	62	657	137
Income before income tax expense and equity in earnings of investee	22,394	21,906	120,263	123,375
Income tax expense	0	0	0	(1)
Equity in earnings of investee	0		0
Net income (loss)	22,394	21,906	120,263	123,374
All Other Operations
Revenues:
Management services	0	0	0	58
Reimbursable payroll and related costs	0	0	0	0
Advisory services	1,019	600	3,033	1,741
Total revenues	1,019	600	3,033	1,799
Expenses:
Compensation and benefits	681	274	1,708	872
Separation costs		0		0
General and administrative	482	332	987	876
Depreciation and amortization	146	0	478	0
Total expenses	1,309	606	3,173	1,748
Operating income (loss)	(290)	(6)	(140)	51
Interest and other income	25	6	402	7
Income before income tax expense and equity in earnings of investee	(265)	0	262	58
Income tax expense	(4,528)	(4,504)	(24,811)	(19,903)
Equity in earnings of investee	4		(161)
Net income (loss)	$ (4,789)	$ (4,504)	$ (24,710)	$ (19,845)

Separation Costs (Details)

Separation Costs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
Separation Costs (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Separation Costs [Abstract]
Separation costs	$ 0	$ 1,195	$ 0	$ 1,358