Acquisitions, Joint Ventures and Investments - Equity Method Investments (Parenthetical) (Detail) - Galore Media, Inc. - USD ($) $ in Millions	1 Months Ended	9 Months Ended
	Apr. 30, 2016	Sep. 30, 2016
Schedule Of Equity Method Investments [Line Items]
Maximum marketing service agreed to be purchased in FY 2016	$ 0.5
Equity ownership percentage	11.00%
Series A Preferred Stock
Schedule Of Equity Method Investments [Line Items]
Shares purchased	50,050
Shares purchased, value	$ 0.5
Preferred Stock, Participation Rights		The Series A Preferred Stock carries voting rights, and the holders of the Series A Preferred Stock have the collective right to appoint one of five members of the Board of Directors as long as there are at least 48,000 Series A Preferred Shares outstanding.
Minimum number of preferred shares outstanding for holders to have collective right to appoint one of five members of board of directors	48,000