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Acquisition Amounts of Assets and Liabilities at Fair Value as of Acquisition Date (Detail) (USD $)
In Thousands, unless otherwise specified
Aug. 01, 2013
Matrical
Aug. 01, 2013
Matrical
Completed Technology
Aug. 01, 2013
Matrical
Customer Relationships
Oct. 29, 2012
Crossing Automation Inc
Oct. 29, 2012
Crossing Automation Inc
Completed Technology
Oct. 29, 2012
Crossing Automation Inc
Customer Relationships
Business Acquisition [Line Items]            
Accounts receivable $ 636     $ 5,356    
Inventory 2,095     8,668    
Prepaid expenses 103     1,968    
Property, plant and equipment 534     2,270    
Identifiable intangible assets   500 1,500   10,530 20,010
Goodwill 7,076     26,453    
Other long term assets       885    
Accounts payable (294)     (3,024)    
Accrued liabilities       (5,172)    
Deferred revenue (351)     (319)    
Other current liabilities (322)     (388)    
Other long-term liabilities       (8,232)    
Total purchase price, net of cash acquired 9,326     59,005    
Business Acquisition, Purchase Price Allocation, Notes Payable and Long-term Debt (902)          
Business Acquisition, Purchase Price Allocation, Customer Deposits $ (1,249)