Cover Page - shares	6 Months Ended
	Jun. 30, 2019	Aug. 06, 2019
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Transition Report	false
Document Period End Date	Jun. 30, 2019
Entity File Number	1-11277
Entity Registrant Name	Valley National Bancorp
Entity Incorporation, State or Country Code	NJ
Entity Tax Identification Number	22-2477875
Entity Address, Address Line One	One Penn Plaza
Entity Address, City or Town	New York,
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10119
City Area Code	973
Local Phone Number	305-8800
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		331,792,538
Amendment Flag	false
Document Fiscal Year Focus	2019
Document Period Period Focus	Q2
Entity Central Index Key	0000714310
Current Fiscal Year End Date	--12-31
Common Stock
Entity Information [Line Items]
Title of 12(b) Security	Common Stock, no par value
Trading Symbol	VLY
Security Exchange Name	NASDAQ
Non-Cumulative Perpetual Preferred Stock, Series A
Entity Information [Line Items]
Title of 12(b) Security	Non-Cumulative Perpetual Preferred Stock, Series A, no par value
Trading Symbol	VLYPP
Security Exchange Name	NASDAQ
Non-Cumulative Perpetual Preferred Stock, Series B
Entity Information [Line Items]
Title of 12(b) Security	Non-Cumulative Perpetual Preferred Stock, Series B, no par value
Trading Symbol	VLYPO
Security Exchange Name	NASDAQ