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Restructuring (Accrued Liabilities Associated With The Relocation And Restructuring Programs) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012
Restructuring Cost and Reserve [Line Items]
Balance at December 31, 2011	$ 790
Costs Accrued	55
Payments	566
Ending Balance	279
Due within 12 months	279
One-Time Termination Benefits To Employees - 2010 And 2009 Restructuring And Relocation Programs [Member]
Restructuring Cost and Reserve [Line Items]
Balance at December 31, 2011	8
Costs Accrued	53
Payments	53
Ending Balance	8
Due within 12 months	8
One-Time Termination Benefits To Employees - 2011 Restructuring Program [Member]
Restructuring Cost and Reserve [Line Items]
Balance at December 31, 2011	782
Costs Accrued	2
Payments	513
Ending Balance	271
Due within 12 months	$ 271

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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- Definition

Amount of cash paid in the period to fully or partially settle a specified, previously accrued type of restructuring cost.

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