Condensed Consolidated Statements of Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Revenues
Management services	$ 43,258	$ 39,014	$ 138,392	$ 141,073
Reimbursable payroll and related costs	10,034	8,759	19,184	16,249
Advisory services	1,004	560	2,014	1,141
Total revenues	54,296	48,333	159,590	158,463
Expenses
Compensation and benefits	24,549	21,561	47,781	42,865
General and administrative	7,146	6,488	12,987	13,163
Depreciation and amortization	528	501	1,083	984
Total expenses	32,223	28,550	61,851	57,012
Operating income (loss)	22,073	19,783	97,739	101,451
Interest and other income	450	51	657	76
Income before income tax expense and equity in loss of investee	22,523	19,834	98,396	101,527
Income tax expense	(4,610)	(4,086)	(20,283)	(15,400)
Equity in loss of investee	(165)	0	(165)	0
Net income (loss)	17,748	15,748	77,948	86,127
Net income attributable to noncontrolling interest	(10,865)	(9,634)	(47,555)	(62,959)
Net income attributable to RMR Inc.	6,883	6,114	30,393	23,168
Other comprehensive income (loss):
Foreign currency translation adjustments	10	10	(1)	19
Other comprehensive income (loss)	10	10	(1)	19
Comprehensive income	17,758	15,758	77,947	86,146
Comprehensive income attributable to noncontrolling interest	(10,870)	(9,639)	(47,555)	(62,968)
Comprehensive income attributable to RMR Inc.	$ 6,888	$ 6,119	$ 30,392	$ 23,178
Weighted average common shares outstanding - basic (in shares)	16,025	16,002	16,025	16,001
Weighted average common shares outstanding - diluted (in shares)	16,042	16,002	16,036	16,001
Net income attributable to RMR Inc. per common share - basic and diluted (in dollars per share)	$ 0.43	$ 0.38	$ 1.89	$ 1.45