Consolidated Statement of Shareholders' Equity Parentheticals (USD $)	6 Months Ended
Jun. 30, 2011
Amortization of defined benefit plan deferred losses, tax	$ 100,000
Amortization of unrealized loss on interest rate swaps, tax	$ 100,000

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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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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