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Restructuring (Accrued Liability Associated With Restructurings And Reorganization Programs) (Details) (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011
One-Time Termination Benefits To Employees 2010 Restructuring And Relocation Program [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	$ 870
Costs Accrued	389
Payments	1,192
Ending Balance	67
Due within 12 months	67
One-Time Termination Benefits To Employees 2011 Restructuring Program [Member]
Restructuring Cost and Reserve [Line Items]
Costs Accrued	10,344
Payments	5,273
Ending Balance	5,071
Due within 12 months	$ 5,071

Carrying amount as of the balance sheet date of known and estimated obligations associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid in the next twelve months or in the normal operating cycle if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

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