Legal Proceedings - Additional Information (Detail)	3 Months Ended	12 Months Ended
	Dec. 31, 2010 USD ($)	Dec. 31, 2013	Mar. 31, 2010 USD ($)	Mar. 31, 2010 ILS	Jun. 29, 2012 Avid Technology Inc. [Member] Patents	Oct. 31, 2011 Avid Technology Inc. [Member] Patents	Nov. 30, 2012 FastVDO [Member] Patents	Apr. 30, 2010 Arris Corporation [Member] Patents
Loss Contingencies [Line Items]
Infringements of number of patents held					1	2	1	4
Liability recorded in litigation	$ 1,300,000
Amount of ex-parte judgment			$ 1,700,000	6,300,000
Action was dismissed by the Israeli Central District Court		Jun. 26, 2012