SEGMENT REPORTING AND REVENUE (Operating Segment Results) (Details) |
3 Months Ended | 9 Months Ended | ||||
|---|---|---|---|---|---|---|
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Sep. 30, 2024
USD ($)
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Sep. 30, 2023
USD ($)
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Sep. 30, 2024
USD ($)
segment
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Sep. 30, 2023
USD ($)
|
Apr. 01, 2024
USD ($)
|
Dec. 31, 2023
USD ($)
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| Disaggregation of Revenue [Line Items] | ||||||
| Number of operating segments | segment | 2 | |||||
| Net interest income | $ 182,932,000 | $ 151,941,000 | $ 515,290,000 | $ 457,469,000 | ||
| Provision for credit losses | 2,603,000 | 4,991,000 | 32,592,000 | 22,911,000 | ||
| Net interest income after provision for credit losses | 180,329,000 | 146,950,000 | 482,698,000 | 434,558,000 | ||
| Noninterest income | 34,286,000 | 27,094,000 | 83,651,000 | 60,918,000 | ||
| Noninterest expenses | 122,582,000 | 108,508,000 | 377,859,000 | 322,442,000 | ||
| Income before income taxes | 92,033,000 | 65,536,000 | 188,490,000 | 173,034,000 | ||
| LHFI, net of deferred fees and costs | 18,337,299,000 | 18,337,299,000 | $ 15,635,043,000 | |||
| Goodwill | 1,212,710,000 | 1,212,710,000 | 925,211,000 | |||
| Deposits | 20,305,287,000 | 20,305,287,000 | 16,818,129,000 | |||
| Strategic cost saving initiatives | Other expenses | ||||||
| Disaggregation of Revenue [Line Items] | ||||||
| Noninterest expenses | 8,700,000 | 9,800,000 | ||||
| Strategic cost saving initiatives | Salaries and benefits | ||||||
| Disaggregation of Revenue [Line Items] | ||||||
| Noninterest expense offset | (67,000) | |||||
| Noninterest expenses | 2,800,000 | |||||
| Strategic cost saving initiatives | Noninterest expense | ||||||
| Disaggregation of Revenue [Line Items] | ||||||
| Noninterest expenses | 8,700,000 | 12,600,000 | ||||
| American National | ||||||
| Disaggregation of Revenue [Line Items] | ||||||
| Goodwill | 287,499,000 | 287,499,000 | $ 287,499,000 | 0 | ||
| Wholesale Banking | ||||||
| Disaggregation of Revenue [Line Items] | ||||||
| Net interest income | 101,097,000 | 68,049,000 | 276,919,000 | 201,722,000 | ||
| Provision for credit losses | 217,000 | 9,310,000 | 25,803,000 | 25,853,000 | ||
| Net interest income after provision for credit losses | 100,880,000 | 58,739,000 | 251,116,000 | 175,869,000 | ||
| Noninterest income | 10,773,000 | 9,468,000 | 29,913,000 | 25,743,000 | ||
| Noninterest expenses | 50,880,000 | 40,039,000 | 144,152,000 | 123,207,000 | ||
| Income before income taxes | 60,773,000 | 28,168,000 | 136,877,000 | 78,405,000 | ||
| LHFI, net of deferred fees and costs | 15,366,703,000 | 15,366,703,000 | 12,688,833,000 | |||
| Goodwill | 845,239,000 | 845,239,000 | 639,180,000 | |||
| Deposits | 7,083,741,000 | 7,083,741,000 | 6,403,432,000 | |||
| Wholesale Banking | American National | ||||||
| Disaggregation of Revenue [Line Items] | ||||||
| Goodwill | 209,900,000 | 209,900,000 | 209,900,000 | |||
| Consumer Banking | ||||||
| Disaggregation of Revenue [Line Items] | ||||||
| Net interest income | 79,112,000 | 63,912,000 | 224,358,000 | 190,806,000 | ||
| Provision for credit losses | 2,389,000 | (4,319,000) | 6,801,000 | (2,947,000) | ||
| Net interest income after provision for credit losses | 76,723,000 | 68,231,000 | 217,557,000 | 193,753,000 | ||
| Noninterest income | 15,721,000 | 13,722,000 | 43,589,000 | 38,188,000 | ||
| Noninterest expenses | 64,335,000 | 54,994,000 | 184,446,000 | 168,971,000 | ||
| Income before income taxes | 28,109,000 | 26,959,000 | 76,700,000 | 62,970,000 | ||
| LHFI, net of deferred fees and costs | 3,113,472,000 | 3,113,472,000 | 2,958,811,000 | |||
| Goodwill | 362,245,000 | 362,245,000 | 286,031,000 | |||
| Deposits | 11,649,873,000 | 11,649,873,000 | 9,816,562,000 | |||
| Consumer Banking | American National | ||||||
| Disaggregation of Revenue [Line Items] | ||||||
| Goodwill | 77,600,000 | 77,600,000 | $ 77,600,000 | |||
| Corporate Other | ||||||
| Disaggregation of Revenue [Line Items] | ||||||
| Net interest income | 2,723,000 | 19,980,000 | 14,013,000 | 64,941,000 | ||
| Provision for credit losses | (3,000) | 0 | (12,000) | 5,000 | ||
| Net interest income after provision for credit losses | 2,726,000 | 19,980,000 | 14,025,000 | 64,936,000 | ||
| Noninterest income | 7,792,000 | 3,904,000 | 10,149,000 | (3,013,000) | ||
| Noninterest expenses | 7,367,000 | 13,475,000 | 49,261,000 | 30,264,000 | ||
| Income before income taxes | 3,151,000 | $ 10,409,000 | (25,087,000) | $ 31,659,000 | ||
| LHFI, net of deferred fees and costs | (142,876,000) | (142,876,000) | (12,601,000) | |||
| Goodwill | 5,226,000 | 5,226,000 | 0 | |||
| Deposits | $ 1,571,673,000 | $ 1,571,673,000 | $ 598,135,000 | |||