Debt (Details 2) In Millions, unless otherwise specified	9 Months Ended				9 Months Ended			3 Months Ended	9 Months Ended					9 Months Ended
	Sep. 30, 2014 USD ($)	Sep. 30, 2013 USD ($)	Dec. 31, 2013 USD ($)	Sep. 30, 2014 Capital Lease Obligations [Member] USD ($)	Sep. 30, 2014 UNITED STATES Secured Debt [Member] Secured loan, Mississippi Development Authority [Member] USD ($)	Sep. 30, 2014 UNITED STATES Loans Payable [Member] USD ($)	Sep. 30, 2014 BRAZIL USD ($)	Sep. 30, 2014 BRAZIL Special Term Governmental Loan [Member] USD ($)	Sep. 30, 2014 BRAZIL Special Term Governmental Loan [Member] USD ($)	Sep. 30, 2014 BRAZIL Special Term Governmental Loan [Member] BRL	Sep. 30, 2014 InsurancePremiumFinanced [Member] UNITED STATES USD ($)	Sep. 30, 2014 Foreign Line of Credit [Member] BRAZIL USD ($)	Sep. 30, 2014 Foreign Line of Credit [Member] INDIA USD ($)	Sep. 30, 2014 Pnc Bank [Member] UNITED STATES USD ($)	Sep. 30, 2014 Pnc Bank [Member] Revolving Credit Facility [Member] USD ($)	Sep. 30, 2014 Pnc Bank [Member] Revolving Credit Facility [Member] UNITED STATES USD ($)	Sep. 30, 2014 Pnc Bank [Member] Secured Debt [Member] UNITED STATES USD ($)	Sep. 30, 2014 Pnc Bank [Member] Letter of Credit [Member] UNITED STATES USD ($)	Sep. 30, 2014 UNITED STATES Letter of Credit [Member] USD ($)	Dec. 31, 2013 UNITED STATES Letter of Credit [Member] USD ($)
Debt Instrument [Line Items]
Debt issuance cost	$ 0.4	$ 0							$ 0.1					$ 0.4
Secured Loan, maximum borrowing capacity					1.5
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate					2.25%
Debt Instrument, Maturity Date					Feb. 01, 2021
Line of Credit Facility, Amount Outstanding					1.4
Other Short-term Borrowings											0.3
Debt Instrument, Issuance Date					Apr. 01, 2013
Long-term Debt, Gross						0.6
Remaining borrowing capacity												17.0	2.4		0.9
Line of Credit Facility, Fair Value of Amount Outstanding																2.2
Total amount of loan approved										82.5
Required spending on financed projects										35.3
Debt Instrument, Maturity Date Range, Start								Jul. 31, 2017
Debt Instrument, Maturity Date Range, End								Jul. 31, 2023
Loan First Installment									11.0
Restricted Cash and Cash Equivalents	8.7		14.2					2.3	2.3
Debt Instrument, Collateral Amount								5.6	5.6
TotalDebtShortandLongTerm							38.7
Line of Credit Facility, Maximum Borrowing Capacity												44.7	12.6			34.0	15.0	10.0
Short-term Debt													10.2
Capital Lease Obligations				1.4
Debt and Capital Lease Obligations	63.8		67.2
Debt, Weighted Average Interest Rate	9.20%	7.70%
Long-term Debt																	9.0
Letters of Credit Outstanding, Amount																			5.5	3.2
Description of variable rate basis	either the London Interbank Offered Rate (LIBOR) or an alternative base rate, plus a margin that varies with borrowing availability under the revolving credit facility
Unamortized Debt Issuance Expense														$ 0.1