Changes in Accumulated Other Comprehensive Income by Component (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Changes in Accumulated Other Comprehensive Income by Component [Roll Forward]
Accumulated other comprehensive income (loss)			$ 25,944	$ (66,752)
Other comprehensive loss before reclassifications to consolidated statements of income			(59,503)	19,193
Amounts reclassified from accumulated other comprehensive income to the consolidated statements of income			6,181	11,167
Net current-period other comprehensive income (loss)	(37,852)	23,606	(53,322)	30,360
Accumulated other comprehensive income (loss)	(27,378)	(36,392)	(27,378)	(36,392)
Gains and Losses on Cash Flow Hedges
Changes in Accumulated Other Comprehensive Income by Component [Roll Forward]
Accumulated other comprehensive income (loss)			(519)	(432)
Other comprehensive loss before reclassifications to consolidated statements of income			(585)	321
Amounts reclassified from accumulated other comprehensive income to the consolidated statements of income			618	(119)
Net current-period other comprehensive income (loss)			33	202
Accumulated other comprehensive income (loss)	(486)	(230)	(486)	(230)
Pension and Other Postretirement Benefit Items
Changes in Accumulated Other Comprehensive Income by Component [Roll Forward]
Accumulated other comprehensive income (loss)			(73,273)	(146,441)
Other comprehensive loss before reclassifications to consolidated statements of income			(7,081)	12,671
Amounts reclassified from accumulated other comprehensive income to the consolidated statements of income			5,563	7,143
Net current-period other comprehensive income (loss)			(1,518)	19,814
Accumulated other comprehensive income (loss)	(74,791)	(126,627)	(74,791)	(126,627)
Foreign Currency Items
Changes in Accumulated Other Comprehensive Income by Component [Roll Forward]
Accumulated other comprehensive income (loss)			99,736	80,121
Other comprehensive loss before reclassifications to consolidated statements of income			(51,837)	6,201
Amounts reclassified from accumulated other comprehensive income to the consolidated statements of income			0	4,143
Net current-period other comprehensive income (loss)			(51,837)	10,344
Accumulated other comprehensive income (loss)	$ 47,899	$ 90,465	$ 47,899	$ 90,465

- 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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