XML 16 R1.htm IDEA: XBRL DOCUMENT v3.21.1
Document And Entity Information
 12 Months Ended
Jan. 31, 2021
shares
Document Information [Line Items]  
Entity Registrant Name DESCARTES SYSTEMS GROUP INC
Entity Central Index Key 0001050140
Current Fiscal Year End Date --01-31
Entity Current Reporting Status Yes
Entity Emerging Growth Company false
Entity Interactive Data Current Yes
Entity Common Stock, Shares Outstanding (in shares) 84,494,658
Document Type 40-F
Document Period End Date Jan. 31, 2021
Document Fiscal Year Focus 2021
Document Fiscal Period Focus FY
Amendment Flag false