Consolidated Statements of Income and Comprehensive Income (Parenthetical) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Statement of Comprehensive Income [Abstract]
Discontinued operation tax effect of discontinued operation	$ 20,578	$ 106,397	$ 115,451
Foreign currency translation adjustment, income tax benefit	78	0	0
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax	861	(248)	0
Amortization of losses and gains from pension and postretirement benefit plans, income tax (expense) benefit	$ (35,852)	$ (27,786)	$ (339)

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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