Segment Information - Additional Information (Detail)	3 Months Ended
Sep. 30, 2014 Distributor Segment
Segment Reporting Information [Line Items]
Number of reportable segments	6
Number of television channels distribution	7
Book Publishing [Member] \| Minimum [Member]
Segment Reporting Information [Line Items]
Number of branded publishing imprints	60
Digital Real Estate Services [Member] \| REA Group Inc [Member]
Segment Reporting Information [Line Items]
Company ownership percentage	61.60%

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

No definition available.

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration