Commitments and Contingencies (Details 1) (USD $) In Millions, unless otherwise specified	0 Months Ended	3 Months Ended	6 Months Ended
	Mar. 22, 2013 sqft	Jun. 30, 2013	Jun. 30, 2013
Loss Contingencies [Line Items]
Product Warranty Accrual, Preexisting, Increase (Decrease)			$ (3.2)
Liability for Asbestos and Environmental Claims, Net, Claims Paid		(0.1)	0.5
Operating Lease Term	6 years
Area of Leased Office Building	192,000
Purchase Price of Property at End of Lease Term	41.2
Percentage of Lease Balance as Final Payment End of Lease Term	86.00%
Annual Warranty Review [Member]
Loss Contingencies [Line Items]
Product Warranty Accrual, Preexisting, Increase (Decrease)			$ 3.2