Subsequent Events - Additional Information (Detail) (Move Inc [Member], USD $) In Millions, except Per Share data, unless otherwise specified	0 Months Ended
Sep. 30, 2014	Sep. 30, 2014
Subsequent Event [Line Items]
Shares purchase price		$ 21.00
Cash consideration, expected to be paid	$ 950
REA Group Inc [Member]
Subsequent Event [Line Items]
Percentage of share held by consolidated subsidiary	20.00%	20.00%

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 13

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585

Name:	us-gaap_PaymentsToAcquireBusinessesGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration