Loans and Leases - Narrative for Impaired Loans (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Receivables [Abstract]
Interest income recognized on a cash basis for nonaccrual loans	$ 23	$ 6	$ 67
Interest income recognized on accrual method for accruing impaired loans	1,800	1,200	485
Reserve for uncollected interest	1uvsp_ReserveforUncollectedInterest	21uvsp_ReserveforUncollectedInterest
Off-balance Sheet Risks, Amount, Liability	$ 338	$ 319

The face amount of financial liabilities, which are not recognized in the financial statements (off-balance sheet) because they fail to meet some other criterion for recognition.

No definition available.

+ Details

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

- Definition

Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 15

-Subparagraph (c)(2)

-URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5212-111524

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of interest income recognized on a cash-basis method of accounting that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 15

-Subparagraph (c)(3)

-URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5212-111524

+ Details

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- Details

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Balance Type:	na
Period Type:	duration

- Definition

Reserve for Uncollected Interest

+ References

No definition available.

+ Details

Name:	uvsp_ReserveforUncollectedInterest
Namespace Prefix:	uvsp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration