Supplemental Cash Flow Information - Supplemental Information About Cash Flows (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash paid for interest	$ 138,295	$ 141,048	$ 231,946
Cash paid for income taxes, net of $5,890, $7,500 and $13,336 for refunds in 2016, 2015 and 2014	75,748	108,090	93,875
SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING ACTIVITIES:
Accrued obligations for the purchase of property plant and equipment	1,079	9,006	20,275
SUPPLEMENTAL DISCLOSURE OF NONCASH FINANCING ACTIVITIES:
Net settlement of stock options exercised	0	0	10
Net settlement of shares issued from the deferred compensation plan	987	2,949	527
Vesting of restricted stock	1,924	2,742	0
Accrued dividends	$ 1,723	$ 1,419	$ 63