Reportable Segment's Revenue and Adjusted EBITDA (Detail) (USD $)	3 Months Ended			9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2013 RMCO	Sep. 30, 2012 RMCO	Sep. 30, 2013 RMCO	Sep. 30, 2012 RMCO	Sep. 30, 2013 RMCO Operating Segments	Sep. 30, 2012 RMCO Operating Segments	Sep. 30, 2013 RMCO Operating Segments	Sep. 30, 2012 RMCO Operating Segments	Sep. 30, 2013 RMCO Operating Segments Real Estate Franchise Services	Sep. 30, 2012 RMCO Operating Segments Real Estate Franchise Services	Sep. 30, 2013 RMCO Operating Segments Real Estate Franchise Services	Sep. 30, 2012 RMCO Operating Segments Real Estate Franchise Services	Sep. 30, 2013 RMCO Operating Segments Brokerage and Other	Sep. 30, 2012 RMCO Operating Segments Brokerage and Other	Sep. 30, 2013 RMCO Operating Segments Brokerage and Other	Sep. 30, 2012 RMCO Operating Segments Brokerage and Other	Sep. 30, 2013 RMCO Intersegment Eliminations	Sep. 30, 2012 RMCO Intersegment Eliminations	Sep. 30, 2013 RMCO Intersegment Eliminations	Sep. 30, 2012 RMCO Intersegment Eliminations	Sep. 30, 2013 RMCO Intersegment Eliminations Real Estate Franchise Services	Sep. 30, 2012 RMCO Intersegment Eliminations Real Estate Franchise Services	Sep. 30, 2013 RMCO Intersegment Eliminations Real Estate Franchise Services	Sep. 30, 2012 RMCO Intersegment Eliminations Real Estate Franchise Services	Sep. 30, 2013 RMCO Intersegment Eliminations Brokerage and Other	Sep. 30, 2012 RMCO Intersegment Eliminations Brokerage and Other	Sep. 30, 2013 RMCO Intersegment Eliminations Brokerage and Other	Sep. 30, 2012 RMCO Intersegment Eliminations Brokerage and Other
Segment Reporting Information [Line Items]
Total segment revenue		$ 40,312,000	$ 38,429,000	$ 118,628,000	$ 108,597,000	$ 40,312,000	$ 38,429,000	$ 118,628,000	$ 108,597,000	$ 36,211,000	$ 34,490,000	$ 106,746,000	$ 97,382,000	$ 4,101,000	$ 3,939,000	$ 11,882,000	$ 11,215,000									$ 435,000	$ 427,000
Total segment Adjusted EBITDA																		$ 22,075,000	$ 19,485,000	$ 58,775,000	$ 48,890,000	$ 21,495,000	$ 18,589,000	$ 58,276,000	$ 48,713,000	$ 580,000	$ 896,000	$ 499,000	$ 177,000