Quarterly report pursuant to Section 13 or 15(d)

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical)

v2.4.1.9
CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) (USD $)
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Dec. 31, 2014
Dec. 31, 2013
Dividends on common stock, per share $ 0.15us-gaap_CommonStockDividendsPerShareDeclared $ 0.14us-gaap_CommonStockDividendsPerShareDeclared    
Common Stock [Member]        
Issuance of Common Stock in regard to acquisition, shares   22,147,874us-gaap_StockIssuedDuringPeriodSharesAcquisitions
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
   
Stock purchased under stock repurchase plan, shares 102,843us-gaap_StockRepurchasedDuringPeriodShares
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
510,515us-gaap_StockRepurchasedDuringPeriodShares
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
   
Issuance of common stock under Dividend Reinvestment Plan, shares 15,781us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
10,843us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
   
Issuance of common stock under Equity Compensation Plans, shares 7,686us-gaap_StockIssuedDuringPeriodSharesEmployeeStockOwnershipPlan
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
24,465us-gaap_StockIssuedDuringPeriodSharesEmployeeStockOwnershipPlan
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
   
Vesting of restricted stock under Equity Compensation Plans, shares 29,140us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
13,310us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
   
Issuance of common stock for services rendered, shares 4,576us-gaap_StockIssuedDuringPeriodSharesIssuedForServices
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
     
Net settle for taxes on Restricted Stock Awards, shares 9,869ubsh_NetSettleForTaxOnStockIssuedShares
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
61,732ubsh_NetSettleForTaxOnStockIssuedShares
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
   
Retained Earnings [Member]        
Dividends on common stock, per share $ 0.15us-gaap_CommonStockDividendsPerShareDeclared
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
$ 0.14us-gaap_CommonStockDividendsPerShareDeclared
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
   
Impact of adoption of ASU 2014-01     $ 856,000us-gaap_ImpactOfRestatementOnOpeningRetainedEarningsNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
$ 429,000us-gaap_ImpactOfRestatementOnOpeningRetainedEarningsNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
Accumulated Other Comprehensive Income [Member]        
Other comprehensive income (loss), tax $ 2,115,000us-gaap_OtherComprehensiveIncomeLossTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedOtherComprehensiveIncomeMember
$ 3,414,000us-gaap_OtherComprehensiveIncomeLossTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedOtherComprehensiveIncomeMember