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Acquisitions - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
Dec. 01, 2012
Dec. 03, 2011
Sep. 05, 2011
Sep. 05, 2011
Powerlink Specialist Electronics Support Limited
Sep. 04, 2012
D and C Import-Export Inc.
Business Acquisition [Line Items]          
Acquisition of assets       $ 2.3 $ 2.6
Working capital adjustment included in assets     0.2 0.2  
Trade receivables included in purchase price 0.2 0.4      
Inventory included in purchase price 1.5 0.2      
Other intangibles included in purchase price   0.4      
Goodwill included in purchase price $ 0.9 $ 1.4