Commitments and Contingencies - Additional Information 1 (Detail) - USD ($) $ in Thousands		1 Months Ended	3 Months Ended
	Sep. 05, 2014	Sep. 30, 2014	Jun. 30, 2015	Jul. 04, 2014
Gain Contingencies [Line Items]
Litigation settlement amount	$ 108,712	$ 108,700
Proceeds from legal settlement			$ 6,900
Product revenues			168,348	$ 168,129
Interest income			700
Implied license [Member]
Gain Contingencies [Line Items]
Litigation settlement amount	$ 85,132
Satellite Services [Member] | Operating Segments [Member]
Gain Contingencies [Line Items]
Product revenues			6,276	$ 30
Satellite Services [Member] | Operating Segments [Member] | Implied license [Member]
Gain Contingencies [Line Items]
Product revenues			$ 6,200