Supplemental Cash Flow Information (Details Textual) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Income Tax Effects Allocated Directly to Equity, Equity Transactions	$ (144.0)
Interest Paid	50.1	$ 40.5
Income Taxes Paid, Net	0.5	(6.3)
Capital Expenditures Incurred but Not yet Paid	16.8	7.3
Insurance prepayment financed [Member]
Liabilities Assumed	$ 4.0	$ 4.6