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RELATED PARTY TRANSACTIONS (Narrative) (Details) (USD $)
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12 Months Ended | 3 Months Ended | ||
|---|---|---|---|---|
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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Mar. 31, 2013
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| Deposit accounts | $ 14,700,000us-gaap_RelatedPartyDepositLiabilities | $ 22,200,000us-gaap_RelatedPartyDepositLiabilities | ||
| Stock repurchased, aggregate purchase price | 52,599,000us-gaap_StockRepurchasedDuringPeriodValue | 9,499,000us-gaap_StockRepurchasedDuringPeriodValue | 14,445,000us-gaap_StockRepurchasedDuringPeriodValue | |
| Markel Corporation [Member] | ||||
| Stock purchased under stock repurchase plan, shares |
500,000us-gaap_StockRepurchasedDuringPeriodShares / dei_LegalEntityAxis = ubsh_MarkelCorporationMember |
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| Stock repurchased, aggregate purchase price |
$ 9,500,000us-gaap_StockRepurchasedDuringPeriodValue / dei_LegalEntityAxis = ubsh_MarkelCorporationMember |
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| Stock repurchased, purchase price per share |
$ 19.00us-gaap_TreasuryStockAcquiredAverageCostPerShare / dei_LegalEntityAxis = ubsh_MarkelCorporationMember |
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| X | ||||||||||
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- Definition
Amount of deposits held by the entity for a related party (entity, shareholder, employee). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Total cost of shares repurchased divided by the total number of shares repurchased. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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