Business Segment Information (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2012	Dec. 31, 2011
Business Segment Information (Textual) [Abstract]
Cost related to closure	$ 2.3	$ 20.1
Personnel related expense incurred	0.3
Facility closure and other costs incurred	2
Scenario, Forecast [Member]
Business Segment Information (Textual) [Abstract]
Expected restructuring costs	37
Expected personnel related expense	15
Expected facility closure and other costs	22
Cost of Sales [Member]
Business Segment Information (Textual) [Abstract]
Restructuring Charges	2.2
Selling and Administrative Costs [Member]
Business Segment Information (Textual) [Abstract]
Restructuring Charges	$ 0.1