0000857855-24-000010 | 10-K | XBRL Viewer | United Community Banks INC

Regulatory Matters - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Regulatory Capital Requirements Under Banking Regulations [Abstract]
Cash dividend from Bank paid to Holding Company	$ 197,900	$ 132,688	$ 217,000

Label

Element

Value

Other Comprehensive Income Loss Amortization Of Prior Service Cost And Actuarial Losses Included In Net Periodic Pension Cost For Defined Benefit Pension Plan Tax Expense Benefit1

ucbi_OtherComprehensiveIncomeLossAmortizationOfPriorServiceCostAndActuarialLossesIncludedInNetPeriodicPensionCostForDefinedBenefitPensionPlanTaxExpenseBenefit1

$ 62,000

Other Comprehensive Income Loss Amortization Of Prior Service Cost And Actuarial Losses Included In Net Periodic Pension Cost For Defined Benefit Pension Plan Tax Expense Benefit1

ucbi_OtherComprehensiveIncomeLossAmortizationOfPriorServiceCostAndActuarialLossesIncludedInNetPeriodicPensionCostForDefinedBenefitPensionPlanTaxExpenseBenefit1

174,000

Other Comprehensive Income Loss Amortization Of Prior Service Cost And Actuarial Losses Included In Net Periodic Pension Cost For Defined Benefit Pension Plan Tax Expense Benefit1

ucbi_OtherComprehensiveIncomeLossAmortizationOfPriorServiceCostAndActuarialLossesIncludedInNetPeriodicPensionCostForDefinedBenefitPensionPlanTaxExpenseBenefit1

267,000

Deferred Tax Liabilities, Unrealized Gain On Cash Flow Hedge

ucbi_DeferredTaxLiabilitiesUnrealizedGainOnCashFlowHedge

4,804,000

Deferred Tax Liabilities, Unrealized Gain On Cash Flow Hedge

ucbi_DeferredTaxLiabilitiesUnrealizedGainOnCashFlowHedge

4,507,000

Proceeds From Exercise Of Options And Warrants

ucbi_ProceedsFromExerciseOfOptionsAndWarrants

5,191,000

Proceeds From Exercise Of Options And Warrants

ucbi_ProceedsFromExerciseOfOptionsAndWarrants

824,000

Proceeds From Exercise Of Options And Warrants

ucbi_ProceedsFromExerciseOfOptionsAndWarrants

231,000

Sales Type And Direct Financing Leases, Security Deposits

ucbi_SalesTypeAndDirectFinancingLeasesSecurityDeposits

413,000

Sales Type And Direct Financing Leases, Security Deposits

ucbi_SalesTypeAndDirectFinancingLeasesSecurityDeposits

429,000

Other Comprehensive Income Loss Amortization Of Prior Service Cost And Actuarial Losses Include Net Periodic Pension Cost For Defined Benefit Pension Plan Net Of Tax

ucbi_OtherComprehensiveIncomeLossAmortizationOfPriorServiceCostAndActuarialLossesIncludeNetPeriodicPensionCostForDefinedBenefitPensionPlanNetOfTax

182,000

Other Comprehensive Income Loss Amortization Of Prior Service Cost And Actuarial Losses Include Net Periodic Pension Cost For Defined Benefit Pension Plan Net Of Tax

ucbi_OtherComprehensiveIncomeLossAmortizationOfPriorServiceCostAndActuarialLossesIncludeNetPeriodicPensionCostForDefinedBenefitPensionPlanNetOfTax

506,000

Other Comprehensive Income Loss Amortization Of Prior Service Cost And Actuarial Losses Include Net Periodic Pension Cost For Defined Benefit Pension Plan Net Of Tax

ucbi_OtherComprehensiveIncomeLossAmortizationOfPriorServiceCostAndActuarialLossesIncludeNetPeriodicPensionCostForDefinedBenefitPensionPlanNetOfTax

777,000

Financing Receivable, Excluding Accrued Interest, Nonaccrual, With Allowance