Document and Entity Information - shares	9 Months Ended
	Dec. 31, 2015	Jan. 29, 2016
Document and Entity Information [Abstract]
Entity Registrant Name	EPLUS INC
Entity Central Index Key	0001022408
Current Fiscal Year End Date	--03-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		7,482,213
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q3
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Dec. 31, 2015