Long-Term and Other Debt - Other Debt (Details) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended				3 Months Ended	12 Months Ended
	Jun. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2014 Loans payable China Loans, varying interest rate CNY	Jun. 30, 2014 Capital lease obligations USD ($)	Dec. 31, 2014 Capital lease obligations USD ($)
Other Debt
Repayment of debt		$ 35.0	$ 0	$ 0	7.4
Reduction of letter of credit	42.8					42.8
Term (in years)							5 years
Debt Instrument, interest rate, stated percentage							3.90%
Capital lease obligations remaining		$ 35.3					$ 35.3