Acquisitions (SAT) - Additional Information (Detail) - USD ($)		12 Months Ended
	Sep. 26, 2014	Dec. 31, 2015	Dec. 31, 2014
Business Acquisition [Line Items]
Adjustments to fair value of earn-out payable		$ 11,222,000
SAT Technology, Inc. ("SAT") [Member]
Business Acquisition [Line Items]
Equity interests acquired	100.00%
Cash paid on acquisition	$ 1,400,000
Cash held back	200,000
Adjustments to fair value of earn-out payable	$ 1,000,000	0
First year estimated earn-out payable		300,000	$ 300,000
Remainder of estimated earn-out payable		700,000	700,000
Revenue from acquired entity		2,300,000	1,000,000
Income from acquired entity		$ (800,000)	$ 0