Derivatives (Details 2) - Not Designated as Hedging Instrument [Member] - Foreign Exchange Forward [Member] € in Millions, RUB in Millions, PLN in Millions, MXN in Millions, BRL in Millions, $ in Millions	Sep. 30, 2015 USD ($)	Sep. 30, 2015 RUB	Sep. 30, 2015 MXN	Sep. 30, 2015 EUR (€)	Sep. 30, 2015 PLN	Sep. 30, 2015 BRL	Dec. 31, 2014 USD ($)	Dec. 31, 2014 RUB	Dec. 31, 2014 MXN	Dec. 31, 2014 EUR (€)	Dec. 31, 2014 PLN	Dec. 31, 2014 BRL
Brazil, Brazil Real
Derivative [Line Items]
Derivative, notional amount | BRL						BRL 0.0						BRL 8.7
Mexico, Pesos
Derivative [Line Items]
Derivative, notional amount | MXN			MXN 0.0						MXN 229.7
United States of America, Dollars
Derivative [Line Items]
Derivative, notional amount	$ 7.1						$ 4.5
Euro Member Countries, Euro
Derivative [Line Items]
Derivative, notional amount | €				€ 6.0						€ 3.6
Poland, Zlotych
Derivative [Line Items]
Derivative, notional amount | PLN					PLN 29.9						PLN 30.6
Russia, Rubles
Derivative [Line Items]
Derivative, notional amount | RUB		RUB 94.4						RUB 80.8