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Classification of Assets and Liabilities Held for Sale (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Held for Sale    
Current assets $ 809 $ 0
Property, plant & equipment, net 14,274 0
Total assets held for sale 15,083 0
Noncurrent liabilities 801 0
Total liabilities of assets held for sale $ 801 $ 0