Major Customers (Details) (Customer Concentration Risk [Member])	3 Months Ended		6 Months Ended
	Jun. 30, 2013 Customer	Jun. 30, 2012 Customer	Jun. 30, 2013 Customer	Jun. 30, 2012 Customer
Customer Concentration Risk [Member]
Concentration Risk [Line Items]
Number of customers being disclosed	5	5	5	5
Net sales attributable to five major customers (in hundredths)	31.70%	23.50%	31.30%	21.90%
Sales attributable to one major customer in the North American segment (in hundredths)	10.00%		10.00%
Accounts receivable attributable to five major customers (in hundredths)	31.90%	24.60%	31.90%	24.60%