Supplemental Cash Flow Information - Additional Information Relating to Cash Flow Activities (Detail) - USD ($) $ in Thousands	9 Months Ended
	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