|
ACQUISITIONS (Narrative) (Details) (USD $)
|
12 Months Ended | 0 Months Ended | ||
|---|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Jan. 01, 2014
|
Dec. 31, 2012
|
|
| Business Acquisition [Line Items] | ||||
| Fair value of loans acquired with a deterioration of credit quality | $ 105,788,000us-gaap_FinancingReceivableAcquiredWithDeterioratedCreditQuality | $ 3,622,000us-gaap_FinancingReceivableAcquiredWithDeterioratedCreditQuality | $ 4,565,000us-gaap_FinancingReceivableAcquiredWithDeterioratedCreditQuality | |
| Acquisition and conversion costs | 20,345,000ubsh_AcquisitionAndConversionCosts | 2,132,000ubsh_AcquisitionAndConversionCosts | ||
| StellarOne Bank [Member] | ||||
| Business Acquisition [Line Items] | ||||
| Number of shares equivalent to each share of acquired entity |
0.9739ubsh_BusinessAcquisitionNumberOfSharesEquivalentToEachShareOfAcquiredEntity / us-gaap_BusinessAcquisitionAxis = ubsh_StellaroneBankMember |
|||
| Number of common shares issued |
22,147,874us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued / us-gaap_BusinessAcquisitionAxis = ubsh_StellaroneBankMember |
|||
| Value of Company common stock issued |
549,489,000us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable / us-gaap_BusinessAcquisitionAxis = ubsh_StellaroneBankMember |
|||
| Fair value mark related to bank premises |
3,200,000ubsh_FairValueAdjustmentOnAcquiredBankPremises / us-gaap_BusinessAcquisitionAxis = ubsh_StellaroneBankMember |
|||
| Acquired performing loans not expected to be collected |
35,400,000ubsh_AcquiredPerformingLoansNotExpectedToBeCollected / us-gaap_BusinessAcquisitionAxis = ubsh_StellaroneBankMember |
|||
| Fair value of loans acquired with a deterioration of credit quality |
145,454,000us-gaap_FinancingReceivableAcquiredWithDeterioratedCreditQuality / us-gaap_BusinessAcquisitionAxis = ubsh_StellaroneBankMember |
|||
| Core deposit intangible assets, amortization period | 8 years | |||
| Premium on acquired time deposits |
10,800,000ubsh_PremiumOnAcquiredTimeDeposits / us-gaap_BusinessAcquisitionAxis = ubsh_StellaroneBankMember |
|||
| Premium accretion on acquired time deposits period | 20 months | |||
| Premium On Acquired FHLB Advances |
3,200,000ubsh_PremiumOnAcquiredFhlbAdvances / us-gaap_BusinessAcquisitionAxis = ubsh_StellaroneBankMember |
|||
| Premium on acquired FHLB advances period | 55 months | |||
| Discount on acquired trust preferred capital notes |
7,500,000ubsh_DiscountOnAcquiredTrustPreferredCapitalNotes / us-gaap_BusinessAcquisitionAxis = ubsh_StellaroneBankMember |
|||
| Discount on acquired trust preferred capital notes period | 20 years | |||
| Acquisition and conversion costs |
20,345,000ubsh_AcquisitionAndConversionCosts / us-gaap_BusinessAcquisitionAxis = ubsh_StellaroneBankMember |
2,132,000ubsh_AcquisitionAndConversionCosts / us-gaap_BusinessAcquisitionAxis = ubsh_StellaroneBankMember |
||
| StellarOne Bank [Member] | Performing Financing Receivable [Member] | ||||
| Business Acquisition [Line Items] | ||||
| Acquired performing loans, Fair value |
2,100,000,000ubsh_AcquiredPerformingLoansFairValue / us-gaap_BusinessAcquisitionAxis = ubsh_StellaroneBankMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PerformingFinancingReceivableMember |
|||
| Acquired performing loans, principal and interest payments receivable |
$ 2,500,000,000ubsh_AcquiredPerformingLoansPrincipalAndInterestPaymentsReceivable / us-gaap_BusinessAcquisitionAxis = ubsh_StellaroneBankMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PerformingFinancingReceivableMember |
|||
| X | ||||||||||
|
- Definition
Acquired performing loans, Fair value No definition available.
|
| X | ||||||||||
|
- Definition
Acquired performing loans not expected to be collected. No definition available.
|
| X | ||||||||||
|
- Definition
Acquired performing loans, principal and interest payments receivable. No definition available.
|
| X | ||||||||||
|
- Definition
This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, severance and employee-related charges, systems integrations; and other related charges as well as other restructuring charges. No definition available.
|
| X | ||||||||||
|
- Definition
Business acquisition, number of shares equivalent to each share of acquired entity, No definition available.
|
| X | ||||||||||
|
- Definition
Discount on acquired trust preferred capital notes. No definition available.
|
| X | ||||||||||
|
- Definition
Discount on acquired trust preferred capital notes period. No definition available.
|
| X | ||||||||||
|
- Definition
Fair value adjustment on acquired bank premises. No definition available.
|
| X | ||||||||||
|
- Definition
Premium accretion on acquired time deposits period. No definition available.
|
| X | ||||||||||
|
- Definition
Premium on acquired FHLB advances. No definition available.
|
| X | ||||||||||
|
- Definition
Premium On Acquired FHLB Advances Period. No definition available.
|
| X | ||||||||||
|
- Definition
Premium on acquired time deposits. No definition available.
|
| X | ||||||||||
|
- Definition
Number of shares of equity interests issued or issuable to acquire entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The balance of financing receivables that were acquired with deteriorated credit quality. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
|
| X | ||||||||||
|
- Details
|