Major Customers - Additional Information (Detail) - distributor	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenue, Major Customer [Line Items]
Number of Customers	3
Number of Customers that Individually Accounted for More Than Ten Percent	3	1
Customer Concentration Risk | Sales Revenue, Net
Revenue, Major Customer [Line Items]
Concentration risk percentage	10.00%
Customer Concentration Risk | Accounts Receivable
Revenue, Major Customer [Line Items]
Concentration risk percentage	10.00%
Customer A | Customer Concentration Risk | Sales Revenue, Net
Revenue, Major Customer [Line Items]
Concentration risk percentage	17.10%	17.10%	16.80%
Customer A | Customer Concentration Risk | Accounts Receivable
Revenue, Major Customer [Line Items]
Concentration risk percentage	19.00%	12.00%
Customer B | Customer Concentration Risk | Sales Revenue, Net
Revenue, Major Customer [Line Items]
Concentration risk percentage	10.00%	12.20%	13.10%
Customer B | Customer Concentration Risk | Accounts Receivable
Revenue, Major Customer [Line Items]
Concentration risk percentage	14.00%
Customer C | Customer Concentration Risk | Sales Revenue, Net
Revenue, Major Customer [Line Items]
Concentration risk percentage	9.60%	10.50%	12.30%
Customer C | Customer Concentration Risk | Accounts Receivable
Revenue, Major Customer [Line Items]
Concentration risk percentage	11.00%