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Related Party Transactions - Additional Information (Detail) - Carrier and Its Affiliates - Supplier Concentration Risk - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Dec. 31, 2015
Related Party Transaction [Line Items]          
Amount payable to Carrier and its affiliates, net of receivables $ 101,000   $ 101,000   $ 85,000
Revenues from sales to Carrier and its affiliates $ 17,000 $ 21,000 $ 29,000 $ 29,000  
Cost of Goods, Total          
Related Party Transaction [Line Items]          
Percentage of purchases from key suppliers 62.00% 64.00% 62.00% 62.00%