Income Taxes Deferred Income Tax Assets and Liabilities Recorded on Consolidated Balance Sheets (Detail) - USD ($) $ in Thousands		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Deferred tax assets:
Accrued employee benefits		$ 32,622	$ 25,519
Accrued expenses		10,065	24,581
Operating loss carryovers		91,934	116,686
Pensions		96,635	96,133
Tax credit carryovers		1,029	2,555
Other		34,866	35,557
Gross deferred tax assets		267,151	301,031
Valuation allowance		(69,900)	(84,137)	$ (30,768)	$ (33,757)
Deferred tax assets		197,251	216,894
Deferred tax liabilities:
Depreciation		(379,161)	(364,657)
Intangibles		(99,969)	(108,047)
Hedge of Net Investment of Foreign Subsidiary		(51,192)	(36,537)
Other		(18,536)	(16,692)
Deferred tax liabilities		(548,858)	(525,933)
Noncurrent deferred tax assets	[1]	61,132	75,813
Noncurrent deferred tax liabilities		(412,739)	(384,852)
Deferred Tax Liabilities, Net		$ (351,607)	$ (309,039)

[1] See Note 1, “Summary of Significant Accounting Policies” and Note 20, “Income Taxes.”