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Consolidated Statements of Income and Comprehensive Income (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Statement of Comprehensive Income [Abstract]
Income from discontinued operations, income tax expense	$ 0	$ 22,273
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax	501	0
Amortization of pension and postretirement plans, income tax expense	$ 931	$ 2,204

Tax effect allocated to a disposal group that is classified as a component of the entity reported as a separate component of income before extraordinary items. Includes the tax effects of the following: income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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