v3.22.2.2
Document and Entity Information
Sep. 23, 2022
Cover [Abstract]  
Entity Registrant Name LAKELAND BANCORP INC
Amendment Flag false
Entity Central Index Key 0000846901
Document Type 8-K
Document Period End Date Sep. 23, 2022
Entity Incorporation State Country Code NJ
Entity File Number 000-17820
Entity Tax Identification Number 22-2953275
Entity Address, Address Line One 250 Oak Ridge Road
Entity Address, City or Town Oak Ridge
Entity Address, State or Province NJ
Entity Address, Postal Zip Code 07438
City Area Code (973)
Local Phone Number 697-2000
Written Communications true
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Common stock, no par value
Trading Symbol LBAI
Security Exchange Name NASDAQ
Entity Emerging Growth Company false