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Condensed Consolidated Statements of Income and Comprehensive Income Parenthetical (USD $) In Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Amortization of pension and postretirement benefit costs, income tax expense (benefit)	$ 927	$ 221	$ 1,854	$ (2,366)

Tax effects of the increase (decrease) to accumulated comprehensive income during the period related to benefit plans. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.

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