Debt (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
SHORT-TERM DEBT
Total short-term debt	$ 1,000	$ 500
LONG-TERM DEBT
Senior Secured Notes due December 15, 2016	225,000	225,000
Convertible Notes due December 15, 2017	57,500	57,500
New Revolving Credit Facility due December 15, 2015	46,800	35,500
Other, primarily capital leases	996	244
Total long-term debt	330,296	318,244
Plus: derivative liability for conversion feature associated with convertible debt		26,440
Less: unamortized discount	(27,704)	(30,252)
Less: current portion	(309)	(192)
Total long-term portion	302,283	314,240
TOTAL SHORT-TERM AND LONG-TERM DEBT	303,592	314,932
Foreign [Member]
SHORT-TERM DEBT
Total short-term debt	$ 1,000	$ 500