Quarterly report pursuant to Section 13 or 15(d)

Business Acquisitions (Details Textual)

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Business Acquisitions (Details Textual) (USD $)
In Thousands, except Share data, unless otherwise specified
 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 2 Months Ended 6 Months Ended
Jun. 30, 2012
Mar. 31, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Fund Quest [Member]
Dec. 13, 2011
Fund Quest [Member]
Jun. 30, 2012
Prima Capital Holding, Inc. [Member]
Jun. 30, 2012
Prima Capital Holding, Inc. [Member]
Apr. 05, 2012
Prima Capital Holding, Inc. [Member]
Jun. 30, 2012
Tamarac, Inc. [Member]
Jun. 30, 2012
Tamarac, Inc. [Member]
May 01, 2012
Tamarac, Inc. [Member]
Jun. 30, 2012
Tamarac, Inc. [Member]
Maximum [Member]
Jun. 30, 2012
Tamarac, Inc. [Member]
Minimum [Member]
Business Acquisitions (Textual) [Abstract]                              
Acquisition date           Dec. 13, 2011     Apr. 05, 2012     May 01, 2012      
Total consideration of acquisition             $ 27,796     $ 13,925     $ 48,427    
Acquisition related costs 1,265     1,881                      
Revenue               1,149     1,784        
Net income (loss) (668)   2,447 72 3,851     (330)     (589)        
Acquired intangible asset amortization               325     326        
Unvested common stock grant                     559,551 559,551      
Granted to certain Tamarac employees stock options to acquire Envestnet common stock                       232,150      
Stock options to acquire Envestnet common stock at an exercise price $ 12.55 $ 12.45                   $ 12.51      
Merger agreement Percentage                           100.00% 50.00%
Aggregate proceeds of the Tamarac change of control payment                     $ 2,759 $ 2,759      
Purchase registered shares of Envestnet common stock                     232,150 232,150      
Purchase registered shares of Envestnet common stock Percentage                     95.00% 95.00%      
Service Period For unvested common stock       2 years