Debt (Details) (USD $)							3 Months Ended
	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2013 Brazil [Member]	Mar. 31, 2013 India [Member]	Mar. 31, 2013 Europe [Member]	Mar. 31, 2013 InsurancePremiumFinanced [Member] UNITED STATES	Mar. 31, 2013 PNC Bank [Member]	Mar. 31, 2013 PNC Bank [Member] Letter of Credit [Member]
Short-term Debt [Line Items]
Revolving line of credit maximum borrowing capacity			$ 41,300,000				$ 45,000,000.00	$ 10,000,000.00
Revolving Credit and Security Agreement expiring date							Apr. 21, 2015
Unused portion of the facility							0.375%
Consolidated borrowings			33,300,000	14,600,000			10,100,000
Line of Credit Facility, Remaining Borrowing Capacity			8,000,000				8,300,000
Other Short-term Borrowings						100,000
Capital Lease Obligations	1,800,000
Available overdraft line					300,000
Debt and Capital Lease Obligations	$ 59,900,000	$ 61,400,000
Interest rate for borrowings	8.30%	9.30%