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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Amount after tax, before reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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Other Comprehensive Income - Changes in Accumulated Other Comprehensive Loss by Component (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance			$ (501,492)
Other comprehensive loss before reclassifications, net of tax	(114,049)	(14,752)	(122,269)	3,925
Amounts reclassified from accumulated other comprehensive loss, net of tax			23,538
Net current period other comprehensive income (loss)	(102,289)	(4,925)	(98,731)	23,594
Ending balance	(600,223)		(600,223)
Pension and Other Post-Retirement Benefit [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance			(632,576)
Amounts reclassified from accumulated other comprehensive loss, net of tax			23,538
Net current period other comprehensive income (loss)			23,538
Ending balance	(609,038)		(609,038)
Foreign Currency Items [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance			131,084
Other comprehensive loss before reclassifications, net of tax			(122,269)
Net current period other comprehensive income (loss)			(122,269)
Ending balance	$ 8,815		$ 8,815