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Restructuring and Other Charges - Restructuring Charges By Statement of Income Account (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Schedule of restructuring and related costs
Restructuring Charges	$ 1,723	$ 11,801
Cost Of Sales Services [Member]
Schedule of restructuring and related costs
Restructuring Charges	(669)	6,074
Cost Of Sales Products [Member]
Schedule of restructuring and related costs
Restructuring Charges	5	123
Selling and Administrative Expense [Member]
Schedule of restructuring and related costs
Restructuring Charges	$ 2,387	$ 5,604

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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