Intangible Assets and Goodwill - Intangible Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Jun. 30, 2015
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 166,595	$ 167,493
Accumulated Amortization	(152,238)	(148,463)
Net Carrying Amount	14,357	19,030
Customer/publisher/advertiser relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	36,655	37,056
Accumulated Amortization	(34,671)	(33,916)
Net Carrying Amount	1,984	3,140
Content [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	61,732	62,162
Accumulated Amortization	(56,062)	(54,629)
Net Carrying Amount	5,670	7,533
Website/trade/domain names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	31,475	31,533
Accumulated Amortization	(26,001)	(24,697)
Net Carrying Amount	5,474	6,836
Acquired technology and others [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	36,733	36,742
Accumulated Amortization	(35,504)	(35,221)
Net Carrying Amount	$ 1,229	$ 1,521