Changes in Accumulated Balances for Each Component of Other Comprehensive Income (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax, as of beginning period	$ (464,486)	$ (446,645)	$ (359,199)
Other comprehensive income (loss) before reclassifications	1,491	(2,040)	(110,508)
Amounts reclassified from accumulated other comprehensive income (loss)	19,319	(15,801)	23,062
Other Comprehensive Income (Loss), Net of Tax	20,810	(17,841)	(87,446)
Accumulated Other Comprehensive Income (Loss), Net of Tax, as of end period	(443,676)	(464,486)	(446,645)
Derivative Instruments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax, as of beginning period	(2,583)	24,616	(3,127)
Other comprehensive income (loss) before reclassifications	(13,103)	2,734	17,900
Amounts reclassified from accumulated other comprehensive income (loss)	4,897	(29,933)	9,843
Other Comprehensive Income (Loss), Net of Tax	(8,206)	(27,199)	27,743
Accumulated Other Comprehensive Income (Loss), Net of Tax, as of end period	(10,789)	(2,583)	24,616
Defined Benefit Pension Plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax, as of beginning period	(190,656)	(172,398)	(134,314)
Other comprehensive income (loss) before reclassifications	44,288	(32,390)	(51,303)
Amounts reclassified from accumulated other comprehensive income (loss)	14,422	14,132	13,219
Other Comprehensive Income (Loss), Net of Tax	58,710	(18,258)	(38,084)
Accumulated Other Comprehensive Income (Loss), Net of Tax, as of end period	(131,946)	(190,656)	(172,398)
Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax, as of beginning period	(271,247)	(298,863)	(221,758)
Other comprehensive income (loss) before reclassifications	(29,694)	27,616	(77,105)
Other Comprehensive Income (Loss), Net of Tax	(29,694)	27,616	(77,105)
Accumulated Other Comprehensive Income (Loss), Net of Tax, as of end period	$ (300,941)	$ (271,247)	$ (298,863)

- Definition

Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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