Debt (Details) (USD $)					6 Months Ended			6 Months Ended
	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2013 Brazil [Member]	Jun. 30, 2013 India [Member]	Jun. 30, 2013 InsurancePremiumFinanced [Member]	Jun. 30, 2013 InsurancePremiumFinanced [Member] UNITED STATES	Jun. 30, 2013 Bank Overdrafts [Member] Europe [Member]	Jun. 30, 2013 PNC Bank [Member]	Jun. 30, 2013 PNC Bank [Member] Letter of Credit [Member]	Jun. 30, 2013 Domestic Line of Credit [Member] Letter of Credit [Member]	Dec. 31, 2012 Domestic Line of Credit [Member] Letter of Credit [Member]
Short-term Debt [Line Items]
Revolving line of credit maximum borrowing capacity			$ 44,500,000					$ 45,000,000.00	$ 10,000,000.00
Revolving Credit and Security Agreement expiring date								Apr. 21, 2015
Unused capacity, commitment fee percentage								0.375%
Consolidated borrowings			25,500,000	9,400,000				10,100,000
Letters of Credit Outstanding, Amount										3,400,000	3,400,000
Available overdraft line							300,000
Other Short-term Borrowings						500,000	0
Line of Credit Facility, Remaining Borrowing Capacity			19,000,000	3,700,000				9,400,000
Duration of Repayment					9 months
Debt and Capital Lease Obligations	$ 49,400,000	$ 61,400,000
Interest rate for borrowings	7.90%	9.30%