Goodwill and Intangible Assets - Additional Information (Detail) - USD ($)	1 Months Ended	3 Months Ended		6 Months Ended
	Feb. 28, 2015	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Finite-Lived Intangible Assets [Line Items]
Change in goodwill				$ 0
Amortization of intangible assets		$ 744,000	$ 1,185,000	1,513,000	$ 1,839,000
Increase (decrease) in cost of intangible assets		6,200,000
RF Solutions [Member]
Finite-Lived Intangible Assets [Line Items]
Fair value of reporting unit amount below carrying value		$ 4,700,000		4,700,000
Customer Contracts and Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets				4,700,000
Customer Contracts and Relationships [Member] | RF Solutions [Member]
Finite-Lived Intangible Assets [Line Items]
Shortfall percentage on impairment charges		100.00%
Cost of Revenue [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets		$ 200,000	$ 200,000	$ 300,000	$ 300,000
Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets basis over estimated useful lives				1 year
Minimum [Member] | Customer Contracts and Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets basis over estimated useful lives				4 years
Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets basis over estimated useful lives				8 years
Maximum [Member] | Customer Contracts and Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets basis over estimated useful lives				6 years
Nexgen Wireless, Inc. [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill acquired	$ 3,300,000