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Estimated Fair Values of Assets Acquired and Liabilities Assumed for Turkington Acquisition (Detail) (Turkington, USD $)
In Thousands, unless otherwise specified
Mar. 14, 2012
Turkington
 
Business Acquisition [Line Items]  
Current assets $ 4,617
Property, plant and equipment 221
Goodwill 5,797
Current liabilities (385)
Net assets acquired and liabilities assumed $ 10,250