Accumulated Other Comprehensive Income - Schedule of Changes in Accumulated Other Comprehensive Income (Losses) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ (69,366)	$ (164,550)	$ (75,357)	$ (163,966)
Other comprehensive income before reclassifications (net of tax)	(32,071)	13,829	(31,661)	5,458
Amounts reclassified from accumulated other comprehensive income (net of tax)	2,494	4,074	8,075	11,861
Other comprehensive income (loss)	(29,577)	17,903	(23,586)	17,319
Ending Balance	(98,943)	(146,647)	(98,943)	(146,647)
Currency Translation Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	15,336	(7,914)	15,141	316
Other comprehensive income before reclassifications (net of tax)	(33,450)	14,263	(33,255)	6,033
Other comprehensive income (loss)	(33,450)	14,263	(33,255)	6,033
Ending Balance	(18,114)	6,349	(18,114)	6,349
Unrealized Gain (Loss) on Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	60	(379)	(941)	(425)
Other comprehensive income before reclassifications (net of tax)	1,379	(434)	1,594	(575)
Amounts reclassified from accumulated other comprehensive income (net of tax)	96	280	882	467
Other comprehensive income (loss)	1,475	(154)	2,476	(108)
Ending Balance	1,535	(533)	1,535	(533)
Pension Plans [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(84,822)	(152,056)	(89,547)	(159,560)
Amounts reclassified from accumulated other comprehensive income (net of tax)	2,363	3,746	7,088	11,250
Other comprehensive income (loss)	2,363	3,746	7,088	11,250
Ending Balance	(82,459)	(148,310)	(82,459)	(148,310)
Other Postretirement Benefit Plans [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	60	(4,201)	(10)	(4,297)
Amounts reclassified from accumulated other comprehensive income (net of tax)	35	48	105	144
Other comprehensive income (loss)	35	48	105	144
Ending Balance	$ 95	$ (4,153)	$ 95	$ (4,153)

- 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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