Cover Page - USD ($)	12 Months Ended
	Jun. 30, 2021	Aug. 27, 2021	Dec. 31, 2020
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Jun. 30, 2021
Document Transition Report	false
Entity File Number	001-33365
Entity Registrant Name	Cantaloupe, Inc.
Entity Incorporation, State or Country Code	PA
Entity Tax Identification Number	23-2679963
Entity Address, Address Line One	100 Deerfield Lane,
Entity Address, Address Line Two	Suite 300,
Entity Address, City or Town	Malvern,
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	19355
City Area Code	610
Local Phone Number	989‑0340
Title of 12(b) Security	Common Stock, no par value
Trading Symbol	CTLP
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 567,017,906
Entity Common Stock, Shares Outstanding		71,258,047
Documents Incorporated by Reference	Selected portions of the registrant’s definitive proxy statement on Schedule 14A for the registrant’s 2022 annual meeting of stockholders are incorporated by reference into Part III of this Annual Report on Form 10-K.
Entity Central Index Key	0000896429
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--06-30