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Estimated Fair Values of Assets Acquired and Liabilities Assumed for Armor Inox Acquisition (Details) (USD $)
In Thousands, unless otherwise specified
Oct. 31, 2012
Dec. 21, 2011
Armor Inox
Dec. 21, 2011
Armor Inox
as initially reported
Dec. 21, 2011
Armor Inox
Measurement Period Adjustments
Business Acquisition [Line Items]        
Cash   $ 18,201 $ 18,201 $ 0
Current assets 4,011 13,654 14,612 (958)
Property, plant and equipment 268 1,571 941 630
Goodwill 18,931 26,135 23,789 2,346
Other intangibles 5,620 9,420 12,155 (2,735)
Other assets   25 25 0
Current liabilities 1,836 (18,626) (18,440) (186)
Long-term deferred tax liability   (3,072) (3,975) 903
Other non-current liabilities 3,134 (450) (450) 0
Net assets acquired and liabilities assumed $ 27,134 $ 46,858 $ 46,858 $ 0