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

Number of shares issued which are neither cancelled nor held in the treasury.

+ References

No definition available.

+ Details

Name:	us-gaap_SharesOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

+ Details

Name:	us-gaap_StockRepurchasedDuringPeriodShares
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

+ References

+ Details

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

- Definition

The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Stock Repurchase Program Percentage Of Shares Authorized To Be Repurchased

+ References

No definition available.

+ Details

Name:	uvsp_StockRepurchaseProgramPercentageOfSharesAuthorizedToBeRepurchased
Namespace Prefix:	uvsp_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_AwardTypeAxis=uvsp_TwoThousandAndSevenPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	us-gaap_AwardTypeAxis=uvsp_TwoThousandThirteenPlanMember
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Share Repurchase Plan - Additional Information (Detail) (USD $) In Millions, except Share data, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2014	Oct. 23, 2013
Equity, Class of Treasury Stock [Line Items]
Shares, Outstanding		16,221,607us-gaap_SharesOutstanding
2007 Plan [Member]
Equity, Class of Treasury Stock [Line Items]
Shares repurchased	540,285
Shares repurchased at cost	$ 9.9
2007 Plan [Member] \| Maximum [Member]
Equity, Class of Treasury Stock [Line Items]
Shares authorized to be repurchased	643,782
2013 Plan [Member]
Equity, Class of Treasury Stock [Line Items]
Shares repurchased		110,997
Shares repurchased at cost		$ 2.0
Percentage of shares outstanding authorized to be repurchased under new stock repurchase plan			5.00%
2013 Plan [Member] \| Maximum [Member]
Equity, Class of Treasury Stock [Line Items]
Shares authorized to be repurchased			800,000