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Summary of Preliminary Fair Values of Assets Acquired and Liabilities Assumed (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 13, 2012
Business Acquisition [Line Items]  
Cash $ 59
Accounts receivable 567
Prepaid expenses and other assets 178
Fixed assets 140
Goodwill 897
Current liabilities (1,314)
Long-term debt (35)
Purchase price 4,961
Customer relationships
 
Business Acquisition [Line Items]  
Amortizable intangible assets 3,454
Developed technology
 
Business Acquisition [Line Items]  
Amortizable intangible assets 818
Trade names / Trademarks
 
Business Acquisition [Line Items]  
Amortizable intangible assets 143
Noncompete agreements
 
Business Acquisition [Line Items]  
Amortizable intangible assets $ 54