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Consolidated Condensed Statement of Stockholders' Equity and Comprehensive Income(Unaudited) (Parentheticals) (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011
Tax	$ 441
Income tax	$ 508

Tax effect on the change in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Includes an entity's share of an equity investee's Increase or Decrease in deferred hedging gains or losses.

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