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The Company and Subsequent Events - Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2016 | Mar. 31, 2016 | Jun. 30, 2016
Company And Subsequent Events [Abstract] |  |  |
Amount paid withholding tax in Canadian Revenue Agency | $ 1,300 | $ 6,300 |
Expects to pay withholding tax amount in Canadian Revenue Agency | 2,000 |  |
Combined withholding taxes relates to reorganization |  |  | $ 9,600
Accrued one-time income tax payment | $ 32,000 |  | $ 32,000

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- Definition Expected income tax expense payment related to foreign tax withholding. + References No definition available. + Details
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