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Restructuring (Schedule of Restructuring Related Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011
Restructuring
Beginning Balance at December 31, 2010	$ 6,295
Provision charged to operating expense	354
Cash outlays	(2,255)
Non-cash write-downs	(3,541)
Ending Balance at December 31, 2011	$ 853

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

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