Acquisitions and Dispositions - Acquisitions (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				3 Months Ended		3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Mar. 31, 2013 WMS Acquisition	Oct. 18, 2013 WMS Acquisition	Mar. 31, 2013 Depreciation and Amortization WMS Acquisition	Mar. 31, 2013 Acquisition-related Costs WMS Acquisition	Mar. 31, 2013 Interest Expense WMS Acquisition	Mar. 31, 2013 Income Tax Expense WMS Acquisition
Business Acquisition [Line Items]
Current assets						$ 508.0
Long-term notes receivable						76.2
Property, plant and equipment, net						465.3
Goodwill	1,190.4		1,186.9	801.4		385.6
Intangible assets						325.0
Intellectual property						201.2
Other long-term assets						5.9
Total assets						1,967.2
Current liabilities						(164.4)
Deferred income taxes						(166.6)
Long-term liabilities						(150.3)
Total liabilities						(481.3)
Total equity purchase price						1,485.9
Revenue from Consolidated Statements of Operations and Comprehensive Loss	388.1	219.6
Add: WMS revenue not reflected in Consolidated Statements of Operations and Comprehensive Loss					177.9
Unaudited pro forma revenue					397.5
Net loss from continuing operations from Consolidated Statements of Operations and Comprehensive Loss	(45.0)	(12.3)
Add: WMS net loss from continuing operations not reflected in Consolidated Statements of Operations and Comprehensive Loss plus pro forma adjustments (1), (2), (3) and (4) below					(12.4)
Unaudited pro forma net loss from continuing operations					$ (24.7)		$ (10.6)	$ 11.1	$ (20.3)	$ 0.1