Commitments, Contingent Liabilities and Other Matters (Details 2) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011 Y option
Capital Leases
Total	$ 37.0
Less: accumulated depreciation	(9.7)
Net book value	27.3
Initial term of the lease (in years)	15
Number of options available for lease extensions	2
Period for which each option to extend the lease term is available (in years)	5
Annual lease payments for the building	6.5
Machinery and Equipment
Capital Leases
Total	9.4
Building
Capital Leases
Total	23.9
Property, Plant and Equipment, Other Types
Capital Leases
Total	$ 3.7