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Quantitative Information Regarding Significant Unobservable Inputs (Detail) (Contingent Consideration, USD $)
In Thousands, unless otherwise specified
6 Months Ended
Jun. 30, 2014
Item
Contingent Consideration
 
Fair Value Assets And Liabilities Measured On Unobservable Inputs [Line Items]  
Fair Value $ 31
Valuation Technique Income Approach
Total term 5 years
Conditions 3
Bond equivalent yield discount rate (percentage) 0.10%