v3.26.1
Cover Page
 12 Months Ended
Mar. 31, 2026
shares
Entity Addresses [Line Items]  
Document Type 40-F
Document Registration Statement false
Document Annual Report true
Current Fiscal Year End Date --03-31
Document Period End Date Mar. 31, 2026
Entity File Number 1-31402
Entity Registrant Name CAE INC.
Entity Incorporation, State or Country Code Z4
Entity Address, Address Line One 8585 Côte-de-Liesse
Entity Address, City or Town Saint-Laurent
Entity Address, State or Province QC
Entity Address, Postal Zip Code H4T 1G6
City Area Code 514
Local Phone Number 341-6780
Title of 12(b) Security Common Shares
Trading Symbol CAE
Security Exchange Name NYSE
Annual Information Form true
Audited Annual Financial Statements true
Common shares 321,734,387
Entity Current Reporting Status Yes
Entity Interactive Data Current Yes
Entity Emerging Growth Company false
ICFR Auditor Attestation Flag true
Document Financial Statement Error Correction [Flag] false
Amendment Flag false
Document Fiscal Year Focus 2026
Document Fiscal Period Focus FY
Entity Central Index Key 0001173382
Business Contact  
Entity Addresses [Line Items]  
Entity Address, Address Line One Liberty Street,
Entity Address, City or Town New York
Entity Address, State or Province NY
Entity Address, Postal Zip Code 10005
City Area Code (212)
Local Phone Number 894-8940
Contact Personnel Name CT Corporation System