Annual report pursuant to Section 13 and 15(d)

Goodwill and Intangible Assets (Details)

v2.4.1.9
Goodwill and Intangible Assets (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Jul. 02, 2013
Oct. 01, 2014
Changes in the carrying amount of the Company's goodwill          
Balance at the beginning of the period $ 74,335us-gaap_Goodwill   $ 65,644us-gaap_Goodwill    
Acquisition 533us-gaap_GoodwillAcquiredDuringPeriod        
Balance at the end of the period 104,976us-gaap_Goodwill   65,644us-gaap_Goodwill    
WMS          
Changes in the carrying amount of the Company's goodwill          
Balance at the beginning of the period       8,691us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= env_WealthManagementSolutionsMember 		 
Acquisition   8,691us-gaap_GoodwillAcquiredDuringPeriod
/ us-gaap_BusinessAcquisitionAxis
= env_WealthManagementSolutionsMember 		     
Balance at the end of the period       8,691us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= env_WealthManagementSolutionsMember 		 
Klein Decisions, Inc.          
Changes in the carrying amount of the Company's goodwill          
Acquisition 3,031us-gaap_GoodwillAcquiredDuringPeriod
/ us-gaap_BusinessAcquisitionAxis
= env_KleinDecisionsIncMember 		       
Placemark Holdings Inc          
Changes in the carrying amount of the Company's goodwill          
Balance at the beginning of the period         27,077us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= env_PlacemarkHoldingsIncMember
Acquisition 27,077us-gaap_GoodwillAcquiredDuringPeriod
/ us-gaap_BusinessAcquisitionAxis
= env_PlacemarkHoldingsIncMember 		       
Balance at the end of the period         $ 27,077us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= env_PlacemarkHoldingsIncMember