v3.26.1
Cover - shares
 3 Months Ended
Jun. 30, 2026
Jul. 30, 2026
Document Information Line Items    
Entity Central Index Key 0001022408  
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2026  
Document Transition Report false  
Entity File Number 1-34167  
Entity Registrant Name ePlus inc.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 54-1817218  
Entity Address, Address Line One 13595 Dulles Technology Drive  
Entity Address, City or Town Herndon  
Entity Address, State or Province VA  
Entity Address, Postal Zip Code 20171-3413  
City Area Code 703  
Local Phone Number 984-8400  
Title of 12(b) Security Common Stock, $.01 par value PLUS NASDAQ Global Select Market  
Trading Symbol PLUS  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   26,090,418
Amendment Flag false  
Document Fiscal Year Focus 2027  
Document Fiscal Period Focus Q1  
Current Fiscal Year End Date --03-31