Cover - shares	3 Months Ended
	Oct. 31, 2024	Jan. 09, 2025
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Oct. 31, 2024
Document Transition Report	false
Entity File Number	0-7928
Entity Registrant Name	COMTECH TELECOMMUNICATIONS CORP /DE/
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	11-2139466
Entity Address, Address Line One	305 N 54th Street
Entity Address, City or Town	Chandler
Entity Address, State or Province	AZ
Entity Address, Postal Zip Code	333-2200
City Area Code	(480)
Local Phone Number	333-2200
Title of 12(b) Security	Common Stock, par value $0.10 per share
Trading Symbol	CMTL
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		29,170,883
Amendment Flag	false
Current Fiscal Year End Date	--07-31
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2025
Entity Central Index Key	0000023197