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Operating Segments - Additional Information (Details)	12 Months Ended
	Dec. 31, 2025
Segment Reporting [Abstract]
Number Of Reportable Segments Not Disclosed Flag	Consumer Banking and Commercial Banking

X

- References

No definition available.

+ Details

Name:	us-gaap_SegmentReportingAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number Of Reportable Segments Not Disclosed Flag

+ References

No definition available.

+ Details

Name:	vly_NumberOfReportableSegmentsNotDisclosedFlag
Namespace Prefix:	vly_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration