Basis of Presentation Business Acquisition (Details) - USD ($) $ in Millions	Jun. 30, 2015	Apr. 01, 2015	Dec. 31, 2014	Jun. 30, 2014
Business Acquisition [Line Items]
Fair value at date of acquisition		$ 411.5
Assets Held-for-sale, Property, Plant and Equipment	$ 8.7		$ 8.7	$ 13.4
ARX Holding Corp. [Member]
Business Acquisition [Line Items]
Business Combination, Step Acquisition, Equity Interest in Acquiree, Including Subsequent Acquisition, Percentage	69.10%
Noncontrolling Interest [Member]
Business Acquisition [Line Items]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	30.90%
Fair value at date of acquisition		$ 411.5