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Supplemental Cash Flow Information - Additional Information Relating to Cash Flow Activities (Detail) - USD ($) $ in Thousands | 9 Months Ended
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Sep. 30, 2016 | Sep. 30, 2015
Cash payments (refunds) for: |  |
Income taxes, net | $ 3,588 | $ (3,648)
Noncash continuing investing and financing activities: |  |
Accounts payable and accrued liabilities associated with additions of property, plant and equipment | 15,685 | 59,566
Long-term debt associated with additions of capitalized internal-use software and software development | 759 | $ 2,233
Series E Redeemable Preferred Stock [Member] |  |
Noncash continuing investing and financing activities: |  |
Dividend accrued on redeemable preferred | 14,323 |
Accretion of redeemable preferred | $ 4,911 |

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