Amortized cost excluding accrued interest, of financing receivable modified during period for debtor experiencing financial difficulty.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-42

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestModifiedPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Percentage, excluding accrued interest, of financing receivable modified during period for debtor experiencing financial difficulty to total financing receivables.

+ References

+ Details

Name:	us-gaap_FinancingReceivableModificationToTotalFinancingReceivablesExcludingAccruedInterestPercent
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 12A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481933/310-10-55-12A

Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 34
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-34

Reference 3: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 33
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-33

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Subparagraph (a)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-42

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-42

+ Details

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

- Details

Name:	us-gaap_LoanRestructuringModificationAxis=us-gaap_ContractualInterestRateReductionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LoanRestructuringModificationAxis=us-gaap_ExtendedMaturityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LoanRestructuringModificationAxis=us-gaap_ExtendedMaturityAndInterestRateReductionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LoanRestructuringModificationAxis=us-gaap_ExtendedMaturityAndPrincipalForgivenessMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LoanRestructuringModificationAxis=us-gaap_PaymentDeferralMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialRealEstatePortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ResidentialPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=vly_HomeEquityPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Loans and Allowance for Credit Losses for Loans - Financing Receivable, Modified (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Financing Receivable, Modified [Line Items]
Total	$ 144,149	$ 15,334	$ 215,997	$ 51,491
% of Total Loan Class	0.27%	0.03%	0.41%	0.10%
Interest rate reduction
Financing Receivable, Modified [Line Items]
Total	$ 74	$ 0	$ 74	$ 0
Term Extension
Financing Receivable, Modified [Line Items]
Total	28,417	11,326	81,626	20,717
Term extension and interest rate reduction
Financing Receivable, Modified [Line Items]
Total	7,394	4,008	7,394	4,008
Term Extension and Principal Forgiveness
Financing Receivable, Modified [Line Items]
Total	0	0	0	20,760
Other than Insignificant Payment Delay
Financing Receivable, Modified [Line Items]
Total	108,264	0	126,903	6,006
Commercial and industrial
Financing Receivable, Modified [Line Items]
Total	$ 28,098	$ 8,306	$ 97,929	$ 15,914
% of Total Loan Class	0.23%	0.08%	0.82%	0.15%
Commercial and industrial \| Interest rate reduction
Financing Receivable, Modified [Line Items]
Total	$ 0	$ 0	$ 0	$ 0
Commercial and industrial \| Term Extension
Financing Receivable, Modified [Line Items]
Total	20,704	8,306	72,798	10,304
Commercial and industrial \| Term extension and interest rate reduction
Financing Receivable, Modified [Line Items]
Total	7,394	0	7,394	0
Commercial and industrial \| Term Extension and Principal Forgiveness
Financing Receivable, Modified [Line Items]
Total	0	0	0	0
Commercial and industrial \| Other than Insignificant Payment Delay
Financing Receivable, Modified [Line Items]
Total	0	0	17,737	5,610
Commercial Real Estate
Financing Receivable, Modified [Line Items]
Total	$ 115,971	$ 7,028	$ 116,426	$ 35,577
% of Total Loan Class	0.42%	0.03%	0.42%	0.14%
Commercial Real Estate \| Interest rate reduction
Financing Receivable, Modified [Line Items]
Total	$ 74	$ 0	$ 74	$ 0
Commercial Real Estate \| Term Extension
Financing Receivable, Modified [Line Items]
Total	7,713	3,020	7,713	10,413
Commercial Real Estate \| Term extension and interest rate reduction
Financing Receivable, Modified [Line Items]
Total	0	4,008	0	4,008
Commercial Real Estate \| Term Extension and Principal Forgiveness
Financing Receivable, Modified [Line Items]
Total	0	0	0	20,760
Commercial Real Estate \| Other than Insignificant Payment Delay
Financing Receivable, Modified [Line Items]
Total	108,184	$ 0	108,639	$ 396
Residential mortgage
Financing Receivable, Modified [Line Items]
Total	$ 80		$ 1,617
% of Total Loan Class	0.00%		0.03%
Residential mortgage \| Interest rate reduction
Financing Receivable, Modified [Line Items]
Total	$ 0		$ 0
Residential mortgage \| Term Extension
Financing Receivable, Modified [Line Items]
Total	0		1,115
Residential mortgage \| Term extension and interest rate reduction
Financing Receivable, Modified [Line Items]
Total	0		0
Residential mortgage \| Term Extension and Principal Forgiveness
Financing Receivable, Modified [Line Items]
Total	0		0
Residential mortgage \| Other than Insignificant Payment Delay
Financing Receivable, Modified [Line Items]
Total	$ 80		502
Home equity
Financing Receivable, Modified [Line Items]
Total			$ 25
% of Total Loan Class			0.00%
Home equity \| Interest rate reduction
Financing Receivable, Modified [Line Items]
Total			$ 0
Home equity \| Term Extension
Financing Receivable, Modified [Line Items]
Total			0
Home equity \| Term extension and interest rate reduction
Financing Receivable, Modified [Line Items]
Total			0
Home equity \| Term Extension and Principal Forgiveness
Financing Receivable, Modified [Line Items]
Total			0
Home equity \| Other than Insignificant Payment Delay
Financing Receivable, Modified [Line Items]
Total			$ 25