Acquisitions and Dispositions - Dispositions (Details)			3 Months Ended
	Jan. 20, 2016 facility	Dec. 31, 2015 facility	Sep. 30, 2017 USD ($)	Mar. 31, 2016 USD ($)
RE/MAX Northwest Realtors
Summary of dispositions
Number of brokerages having assets and liabilities sold | facility	3
Loss on sale or disposition of assets, net | $				$ (90,000)
RE/MAX Equity Group
Summary of dispositions
Number of brokerages having assets and liabilities sold | facility		12
Gain Loss On Sale Or Disposition Of Assets Net [Member] | RE/MAX Equity Group
Summary of dispositions
Loss on sale or disposition of assets, net | $			$ (463,000)