Goodwill and Intangible Assets (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2014
Amortization expense
Amortization expense	$ 3.1	$ 10.4
Remainder of 2014	3.1	3.1
Amortization expense, 2015	3.7	3.7
Amortization expense, 2016	3.5	3.5
Amortization expense, 2017	3.5	3.5
Amortization expense, 2018	3.5	3.5
Amortization expense, thereafter	$ 35.5	$ 35.5