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Related Party Transactions (Detail) - USD ($) $ in Thousands |  |  | 12 Months Ended |
--- | --- | --- | --- | ---
Feb. 26, 2016 | Dec. 04, 2014 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014 | Sep. 30, 2015
Related Party Transaction [Line Items] |  |  |  |  |  |
Accounts payable to affiliate, net |  |  | $ 3,349 | $ 2,291 |  |
Cost of sales, related party transactions |  |  | 29,596 | 40,206 | $ 37,007 |
Distribution received from equity method investee |  |  | $ 3,300 | 0 | 4,835 |
ICP [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Distribution received from equity method investee | $ 3,300 | $ 4,835 |  |  |  |
Equity method ownership percentage (percent) | 30.00% |  | 30.00% |  |  | 30.00%
ICP [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Cost of sales, related party transactions |  |  | $ 29,596 | $ 39,738 | $ 35,254 |

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