Quarterly report pursuant to Section 13 or 15(d)

Business Combinations (Details)

v3.4.0.3
Business Combinations (Details)
$ in Thousands
 3 Months Ended
Sep. 30, 2015
USD ($)
acquisition
Mar. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]      
Number of acquisitions | acquisition 4    
Goodwill   $ 93,051 $ 93,796
Q3 2015 Acquisitions      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]      
Goodwill $ 40,281    
Accounts receivable 6,450    
Property and equipment 1,783    
Deferred tax liability (preliminary) (11,047)    
Accrued expenses (4,379)    
Other liabilities assumed, net of assets acquired (preliminary) (857)    
Total consideration transferred $ 68,331    
Q3 2015 Acquisitions | Customer relationships      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]      
Finite lived intangible asset, weighted average useful life 7 years 7 months 6 days    
Intangible assets $ 14,000    
Q3 2015 Acquisitions | Developed technology      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]      
Finite lived intangible asset, weighted average useful life 5 years 8 months 12 days    
Intangible assets $ 21,900    
Q3 2015 Acquisitions | Trade name      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]      
Finite lived intangible asset, weighted average useful life 5 years    
Intangible assets $ 200    
Scenario, Previously Reported | Q3 2015 Acquisitions      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]      
Goodwill 41,093    
Accounts receivable 6,450    
Property and equipment 1,783    
Deferred tax liability (preliminary) (11,047)    
Accrued expenses (4,379)    
Other liabilities assumed, net of assets acquired (preliminary) (1,669)    
Total consideration transferred 68,331    
Scenario, Previously Reported | Q3 2015 Acquisitions | Customer relationships      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]      
Intangible assets 14,000    
Scenario, Previously Reported | Q3 2015 Acquisitions | Developed technology      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]      
Intangible assets 21,900    
Scenario, Previously Reported | Q3 2015 Acquisitions | Trade name      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]      
Intangible assets 200    
Scenario, Adjustment | Q3 2015 Acquisitions      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]      
Goodwill (812)    
Accounts receivable 0    
Property and equipment 0    
Deferred tax liability (preliminary) 0    
Accrued expenses 0    
Other liabilities assumed, net of assets acquired (preliminary) 812    
Total consideration transferred 0    
Scenario, Adjustment | Q3 2015 Acquisitions | Customer relationships      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]      
Intangible assets 0    
Scenario, Adjustment | Q3 2015 Acquisitions | Developed technology      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]      
Intangible assets 0    
Scenario, Adjustment | Q3 2015 Acquisitions | Trade name      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]      
Intangible assets $ 0