Subsequent Events - Additional Information (Detail) (Subsequent Event [Member]) In Millions, unless otherwise specified	1 Months Ended
	Jul. 31, 2014 USD ($)	Jul. 31, 2014 AUD	Aug. 31, 2014 Harlequin Enterprises Limited [Member] USD ($)	Aug. 31, 2014 Harlequin Enterprises Limited [Member] CAD	Jul. 31, 2014 iProperty Group Limited [Member]
Subsequent Event [Line Items]
Acquisition of business, purchase price			$ 420	455
Percentage of shareholding purchased					17.22%
Cash consideration paid	$ 100	106