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Related Party Transactions - Additional Information (Detail) - Supplier Concentration Risk - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Cost of Goods, Total      
Related Party Transaction [Line Items]      
Percentage of purchases from key suppliers 84.00% 82.00% 81.00%
Carrier and Its Affiliates      
Related Party Transaction [Line Items]      
Amount payable to Carrier and its affiliates, net of receivables $ 85,000 $ 61,000  
Revenues from sales to Carrier and its affiliates $ 61,656 $ 38,195 $ 30,819
Carrier and Its Affiliates | Cost of Goods, Total      
Related Party Transaction [Line Items]      
Percentage of purchases from key suppliers 62.00% 61.00% 59.00%