General Information - Reclassifications (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2015
Income Statement Reclassification
Item Effected [Line Items]
Prior Period Income Statement Reclassification Treasury Grant	$ 2.2	$ 4.7
Cash Flow Statement Reclassification
Item Effected [Line Items]
Prior Period Cash Flow Statement Reclassification Depreciation and Amortization		1.7
Prior Period Cash Flow Statement Reclassification Other Operating Activities		6.1
Prior period cash flow statment reclassification other investing activities		$ 11.5