v2.4.0.6
Debt (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2012
Dec. 31, 2011
Long-term debt    
carrying amount of long-term debt $ 593,200 $ 595,400
Capital lease obligations 327 432
Long term debt including current maturities 593,173 595,445
Less: Current maturities (9,536) (7,592)
Total 583,637 587,853
Suzhou Credit Facility [Member]
   
Long-term debt    
carrying amount of long-term debt 19,500 20,000
7.75% Senior secured notes [Member]
   
Long-term debt    
carrying amount of long-term debt 560,000 560,000
United States Dollar Loan [Member] | Argentina Subsidiary [Member]
   
Long-term debt    
carrying amount of long-term debt $ 13,346 $ 15,013