Changes in Goodwill (Detail) (RMCO, USD $) In Thousands, unless otherwise specified			9 Months Ended
	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013 Real Estate Franchise Services
Goodwill [Line Items]
Balance, January 1, 2013	$ 70,902	$ 71,039	$ 71,039
Effect of changes in foreign currency exchange rates			(137)
Balance, September 30, 2013	$ 70,902	$ 71,039	$ 70,902