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Restructuring Charges Textuals (Details) (USD $)	12 Months Ended
Restructuring Charges Textuals (Details) (USD $)	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Restructuring Charges [Abstract]
Restructuring and Related Cost, Cost Incurred to Date	$ 48,600,000
Restructuring Charges	5,912,000	4,866,000	31,368,000
Payments for Restructuring	$ (6,297,000)	$ (11,067,000)	$ (22,200,000)

Amount of costs incurred to date for the specified type of restructuring cost.

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- Definition

Amount charged against earnings in the period for incurred and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding asset retirement obligations.

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