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Income Taxes - Schedule of Current and Non-Current Deferred Tax Assets and Liabilities Balance Sheet Captions (Detail) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
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Income Tax Disclosure [Abstract] |  |
Prepaid expenses and other current assets |  | $ 20,017
Other assets | $ 5,088 | 8,830
Other current liabilities |  | 234
Deferred income taxes | $ 76,458 | $ 104,016

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