Envestnet, Inc. Quarterly report pursuant to Section 13 or 15(d)

Net Income (Loss) Per Share (Antidilutive Securities) (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Common share equivalents for securities that were anti-dilutive and therefore excluded from the computation of diluted earnings per share
Anti-dilutive securities excluded from computation of diluted loss per share (in shares)	7,793,826	7,311,730	7,793,826	7,311,730
Stock options
Common share equivalents for securities that were anti-dilutive and therefore excluded from the computation of diluted earnings per share
Anti-dilutive securities excluded from computation of diluted loss per share (in shares)	0	2,667,329	0	2,667,329
Unvested restricted stock units and awards
Common share equivalents for securities that were anti-dilutive and therefore excluded from the computation of diluted earnings per share
Anti-dilutive securities excluded from computation of diluted loss per share (in shares)	0	1,901,080	0	1,901,080
Convertible Notes
Common share equivalents for securities that were anti-dilutive and therefore excluded from the computation of diluted earnings per share
Anti-dilutive securities excluded from computation of diluted loss per share (in shares)	7,793,826	2,743,321	7,793,826	2,743,321