Annual report pursuant to Section 13 and 15(d)

FAIR VALUE MEASUREMENTS (Schedule of Financial Assets Measured at Fair Value on Nonrecurring Basis) (Details)

v2.4.1.9
FAIR VALUE MEASUREMENTS (Schedule of Financial Assets Measured at Fair Value on Nonrecurring Basis) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Schedule of financial assets measured at fair value on nonrecurring basis    
Loans held for sale $ 42,519us-gaap_LoansHeldForSaleFairValueDisclosure $ 53,185us-gaap_LoansHeldForSaleFairValueDisclosure
Other real estate owned 28,118us-gaap_OtherRealEstateAndForeclosedAssets 34,116us-gaap_OtherRealEstateAndForeclosedAssets
Fair Value, Measurements, Nonrecurring [Member]    
Schedule of financial assets measured at fair value on nonrecurring basis    
Loans held for sale 42,519us-gaap_LoansHeldForSaleFairValueDisclosure
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
53,185us-gaap_LoansHeldForSaleFairValueDisclosure
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
Impaired loans 15,797ubsh_FairValueOfImpairedLoans
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
7,985ubsh_FairValueOfImpairedLoans
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
Other real estate owned 28,118us-gaap_OtherRealEstateAndForeclosedAssets
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
34,116us-gaap_OtherRealEstateAndForeclosedAssets
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
Quoted Prices in Active Markets for Identical Assets Level 1 [Member]    
Schedule of financial assets measured at fair value on nonrecurring basis    
Loans held for sale     
Quoted Prices in Active Markets for Identical Assets Level 1 [Member] | Fair Value, Measurements, Nonrecurring [Member]    
Schedule of financial assets measured at fair value on nonrecurring basis    
Loans held for sale      
Impaired loans      
Other real estate owned      
Significant Other Observable Inputs Level 2 [Member]    
Schedule of financial assets measured at fair value on nonrecurring basis    
Loans held for sale 42,519us-gaap_LoansHeldForSaleFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
53,185us-gaap_LoansHeldForSaleFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
Significant Other Observable Inputs Level 2 [Member] | Fair Value, Measurements, Nonrecurring [Member]    
Schedule of financial assets measured at fair value on nonrecurring basis    
Loans held for sale 42,519us-gaap_LoansHeldForSaleFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
53,185us-gaap_LoansHeldForSaleFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
Impaired loans      
Other real estate owned      
Significant Unobservable Inputs Level 3 [Member]    
Schedule of financial assets measured at fair value on nonrecurring basis    
Loans held for sale     
Significant Unobservable Inputs Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]    
Schedule of financial assets measured at fair value on nonrecurring basis    
Loans held for sale      
Impaired loans 15,797ubsh_FairValueOfImpairedLoans
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
7,985ubsh_FairValueOfImpairedLoans
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
Other real estate owned $ 28,118us-gaap_OtherRealEstateAndForeclosedAssets
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
$ 34,116us-gaap_OtherRealEstateAndForeclosedAssets
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember