Restructuring (Restructuring Charges Incurred and Expects to Incur by the Company) (Details) (USD $) In Thousands	6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended			6 Months Ended
	Jun. 30, 2011	Dec. 31, 2010 2009 Restructuring Program [Member] Workforce Reductions [Member] Cash Charges [Member]	Jun. 30, 2011 Workforce Reductions [Member] Cash Charges [Member]	Dec. 31, 2010 2009 Restructuring Program [Member] Decommissioning, Demolition and Lease Termination Charges [Member] Cash Charges [Member]	Jun. 30, 2011 Decommissioning, Demolition and Lease Termination Charges [Member] Cash Charges [Member]	Dec. 31, 2010 2009 Restructuring Program [Member] Fixed Asset Impairment [Member] Non-Cash Charges [Member]	Jun. 30, 2011 Fixed Asset Impairment [Member] Non-Cash Charges [Member]	Dec. 31, 2010 2009 Restructuring Program [Member] Inventory Impairment/Other Charges (Reversals) [Member] Non-Cash Charges [Member]	Jun. 30, 2011 Inventory Impairment/Other Charges (Reversals) [Member] Non-Cash Charges [Member]	Dec. 31, 2010 2009 Restructuring Program [Member]	Dec. 31, 2010 2009 Restructuring Program [Member] Cash Charges [Member]	Dec. 31, 2010 2009 Restructuring Program [Member] Non-Cash Charges [Member]	Jun. 30, 2011 Cash Charges [Member]	Jun. 30, 2011 Non-Cash Charges [Member]
Total charges expected to be incurred	$ 15,483		$ 6,394		$ 1,744		$ 5,536		$ 1,809	$ 14,808			$ 8,138	$ 7,345
Total charges incurred	533	6,225	128	1,238	405	5,536		1,809			7,463	7,345	533
Additional charges expected to be incurred	$ 142		$ 41		$ 101								$ 142