v3.25.3
Cover
Oct. 21, 2025
Cover [Abstract]  
Document Type 8-K
Document Period End Date Oct. 21, 2025
Entity Incorporation, State or Country Code MD
Entity File Number 001-37399
Entity Tax Identification Number 30-0870244
Entity Address, Address Line One 120 Passaic Avenue
Entity Address, City or Town Fairfield
Entity Address, State or Province NJ
Entity Address, Postal Zip Code 07004
City Area Code (973)
Local Phone Number 244-4500
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(g) Security Common Stock, $0.01 par value
Trading Symbol KRNY
Security Exchange Name NASDAQ
Entity Emerging Growth Company false
Amendment Flag false
Entity Central Index Key 0001617242
Entity Registrant Name KEARNY FINANCIAL CORP.