0000857855 2023-05-30 2023-05-30 0000857855 us-gaap:CommonStockMember 2023-05-30 2023-05-30 0000857855 ucbi:UCBISeriesINonCumulativePreferredStockMember 2023-05-30 2023-05-30 0000857855 false 8-K 2023-05-30 UNITED COMMUNITY BANKS, INC. GA 001-35095 58-1807304 125 Highway 515 East Blairsville GA 30512 706 781-2265 false false false false Common stock, par value $1 per share UCBI NASDAQ Depositary shares, each representing 1/1,000th interest in a share of Series I Non-Cumulative Preferred Stock UCBIO NASDAQ false