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Allocation of Purchase Price to Assets Acquired Based on Their Related Fair Values (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 18, 2012
Empathy Lab LLC
May 23, 2012
Thoughtcorp Inc
Aug. 20, 2010
Instant Information Inc
Aug. 20, 2010
Instant Information Inc
Prepaid and other assets
Aug. 20, 2010
Instant Information Inc
Purchased Computer Software
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]          
Cash and cash equivalents $ 1,191 $ 1,111 $ 11    
Restricted cash     107    
Trade receivables and other current assets 5,983 2,484      
Trade receivables     273    
Purchase price allocation       53 19
Property and equipment 186 92 113    
Trade name     216    
Deferred tax asset 30 1,348      
Acquired intangible assets 11,200 5,296      
Goodwill 11,359 2,935 838    
Total assets acquired 29,949 13,266 1,630    
Accounts payable     580    
Accounts payable and accrued expenses 1,028 461      
Accrued expenses     186    
Assumed shareholder and director loans   1,290      
Deferred revenue and other liabilities 1,664 411 448    
Liability under capital leases     36    
Other taxes payable     20    
Total liabilities assumed 2,692 2,162 1,270    
Net assets acquired $ 27,257 $ 11,104 $ 360