Loans and Leases - Allowance for Loan and Lease Losses and Recorded Investment in Loans and Leases (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Allowance For Credit Losses, Loans And Leases [Abstract]
Ending balance: individually analyzed	$ 1,787	$ 2,765
Ending balance: pooled	83,600	76,239
Total: Allowance for Credit Loss	85,387	79,004	$ 71,924	$ 83,044
Loans and Leases Held for Investment [Abstract]
Ending balance: individually analyzed	20,747	13,351
Ending balance: pooled	6,546,467	6,109,879
Loans and leases held for investment	6,567,214	6,123,230
Commercial, Financial and Agricultural [Member]
Allowance For Credit Losses, Loans And Leases [Abstract]
Ending balance: individually analyzed	692	2,765
Ending balance: pooled	13,007	14,155
Total: Allowance for Credit Loss	13,699	16,920	13,538	13,584
Loans and Leases Held for Investment [Abstract]
Ending balance: individually analyzed	2,551	5,072
Ending balance: pooled	987,172	1,083,856
Loans and leases held for investment	989,723	1,088,928
Real Estate-Commercial [Member]
Allowance For Credit Losses, Loans And Leases [Abstract]
Ending balance: individually analyzed	20	0
Ending balance: pooled	45,829	41,673
Total: Allowance for Credit Loss	45,849	41,673	41,095	52,230
Loans and Leases Held for Investment [Abstract]
Ending balance: individually analyzed	5,709	4,537
Ending balance: pooled	3,297,089	3,023,418
Loans and leases held for investment	3,302,798	3,027,955
Real Estate-Construction [Member]
Allowance For Credit Losses, Loans And Leases [Abstract]
Ending balance: individually analyzed	1,075	0
Ending balance: pooled	5,468	4,952
Total: Allowance for Credit Loss	6,543	4,952	4,575	3,298
Loans and Leases Held for Investment [Abstract]
Ending balance: individually analyzed	6,067	0
Ending balance: pooled	388,395	381,811
Loans and leases held for investment	394,462	381,811
Real Estate-Residential Secured for Business Purpose [Member]
Allowance For Credit Losses, Loans And Leases [Abstract]
Ending balance: individually analyzed	0	0
Ending balance: pooled	8,692	7,054
Total: Allowance for Credit Loss	8,692	7,054	6,482	7,317
Loans and Leases Held for Investment [Abstract]
Ending balance: individually analyzed	1,090	1,013
Ending balance: pooled	515,912	477,241
Loans and leases held for investment	517,002	478,254
Real Estate-Residential Secured for Personal Purpose [Member]
Allowance For Credit Losses, Loans And Leases [Abstract]
Ending balance: individually analyzed	0	0
Ending balance: pooled	6,349	3,685
Total: Allowance for Credit Loss	6,349	3,685	2,403	3,055
Loans and Leases Held for Investment [Abstract]
Ending balance: individually analyzed	4,214	1,989
Ending balance: pooled	904,801	728,406
Loans and leases held for investment	909,015	730,395
Real Estate-Home Equity Secured for Personal Purpose [Member]
Allowance For Credit Losses, Loans And Leases [Abstract]
Ending balance: individually analyzed	0	0
Ending balance: pooled	1,289	1,287
Total: Allowance for Credit Loss	1,289	1,287	1,028	1,176
Loans and Leases Held for Investment [Abstract]
Ending balance: individually analyzed	1,116	740
Ending balance: pooled	178,166	175,959
Loans and leases held for investment	179,282	176,699
Loans to Individuals [Member]
Allowance For Credit Losses, Loans And Leases [Abstract]
Ending balance: individually analyzed	0	0
Ending balance: pooled	392	351
Total: Allowance for Credit Loss	392	351	363	533
Loans and Leases Held for Investment [Abstract]
Ending balance: individually analyzed	0	0
Ending balance: pooled	27,749	27,873
Loans and leases held for investment	27,749	27,873
Lease Financings [Member]
Allowance For Credit Losses, Loans And Leases [Abstract]
Ending balance: individually analyzed	0	0
Ending balance: pooled	2,574	3,082
Total: Allowance for Credit Loss	2,574	3,082	2,290	1,701
Loans and Leases Held for Investment [Abstract]
Ending balance: individually analyzed	0	0
Ending balance: pooled	247,183	211,315
Loans and leases held for investment	$ 247,183	211,315
Unallocated [Member]
Allowance For Credit Losses, Loans And Leases [Abstract]
Total: Allowance for Credit Loss		$ 0	$ 150	$ 150

No definition available.

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

- Definition

Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479344/326-20-45-1

+ Details

Name:	us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 11B
-Subparagraph (g)
-SubTopic 10
-Topic 310
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-11B

+ Details

Name:	us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

+ References

+ Details

Name:	us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The balance of financing receivables that were collectively evaluated for impairment.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 4
-Subparagraph (SAB Topic 6.L(5)(a))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480418/310-10-S99-4

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 11C
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-11C

+ Details

Name:	us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The balance of financing receivables that were individually evaluated for impairment.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 11C
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-11C

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 4
-Subparagraph (SAB Topic 6.L(5)(a))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480418/310-10-S99-4

+ Details

Name:	us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481990/310-10-45-2

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-4

+ Details

Name:	us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Allowance for loan and lease losses.

+ References

No definition available.

+ Details

Name:	uvsp_AllowanceForLoanAndLeaseLossesAbstract
Namespace Prefix:	uvsp_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=uvsp_CommercialFinancialAndAgriculturalMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=uvsp_RealEstateCommercialMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ConstructionLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=uvsp_RealEstateResidentialSecuredForBusinessPurposeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=uvsp_RealEstateResidentialSecuredForPersonalPurposeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=uvsp_RealEstateHomeEquitySecuredForPersonalPurposeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ConsumerLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_FinanceLeasesPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_UnallocatedFinancingReceivablesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: