Property, Plant and Equipment (Details Textuals) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Property, Plant and Equipment
Depreciation expense	$ 215.4	$ 214.9	$ 179.9
Accounts payable for purchases of property and equipment	$ 19.7	$ 24.4	$ 32.7