Long-Term Debt (Maturity Range) (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012
Long-term Debt, Unclassified [Abstract]
Maturities of long-term debt range, start	Dec. 31, 2013
Maturities of long-term debt range, end	Dec. 31, 2017
Maturities of long-term debt in 2013	$ 511.2
Maturities of long-term debt in 2014	30.7
Maturities of long-term debt in 2015	128.5
Maturities of long-term debt in 2016	1.2
Maturities of long-term debt in 2017	1.5
Maturities of long-term debt in 2018 and thereafter	$ 777.0