Cover - shares	9 Months Ended
	Sep. 28, 2024	Nov. 18, 2024
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 28, 2024
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q3
Entity Central Index Key	0001873529
Current Fiscal Year End Date	--12-28
Document Quarterly Report	true
Document Transition Report	false
Entity File Number	001-42367
Entity Registrant Name	KinderCare Learning Companies, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	87-1653366
Entity Address, Address Line One	5005 Meadows Road
Entity Address, City or Town	Lake Oswego
Entity Address, State or Province	OR
Entity Address, Postal Zip Code	97035
City Area Code	503
Local Phone Number	872-1300
Title of 12(b) Security	Common stock, par value $0.01 per share
Trading Symbol	KLC
Security Exchange Name	NYSE
Entity Current Reporting Status	No
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Bankruptcy Proceedings, Reporting Current	true
Entity Common Stock, Shares Outstanding		117,966,089