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SEGMENT REPORTING AND REVENUE (Operating Segment Results) (Details) $ in Thousands | 3 Months Ended | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Jun. 30, 2025 USD ($) | Jun. 30, 2024 USD ($) | Jun. 30, 2025 USD ($) segment | Jun. 30, 2024 USD ($) | Apr. 01, 2025 USD ($) | Dec. 31, 2024 USD ($) | Apr. 01, 2024 USD ($)
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |
Number of operating segments | segment |  |  | 2 |  |  |  |
Interest and dividend income | $ 510,372 | $ 320,888 | $ 816,208 | $ 583,802 |  |  |
Interest expense | 189,001 | 136,354 | 310,672 | 251,444 |  |  |
Net interest income | 321,371 | 184,534 | 505,536 | 332,358 |  |  |
Provision for credit losses | 105,707 | 21,751 | 123,345 | 29,989 |  |  |
Net interest income after provision for credit losses | 215,664 | 162,783 | 382,191 | 302,369 |  |  |
Noninterest income | 81,522 | 23,812 | 110,685 | 49,365 |  |  |
Noninterest expenses | 279,698 | 150,005 | 413,882 | 255,279 |  |  |
Income (loss) before income taxes | 17,488 | 36,590 | 78,994 | 96,455 |  |  |
LHFI, net of deferred fees and costs | 27,328,333 |  | 27,328,333 |  |  | $ 18,470,621 |
Goodwill | 1,710,912 |  | 1,710,912 |  |  | 1,214,053 |
Deposits | 30,972,175 |  | 30,972,175 |  |  | 20,397,619 |
Reallocation of LHFS |  |  | 10,300 |  |  |  |
Reallocation of deposits |  |  | 198,200 |  |  |  |
American National |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |
Goodwill |  |  |  |  |  | 288,842 | $ 288,842
Sandy Spring |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |
Goodwill | 496,859 |  | 496,859 |  | $ 496,859 |  |
Wholesale Banking | American National |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  | 210,800
Wholesale Banking | Sandy Spring |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |
Goodwill |  |  |  |  | 387,600 |  |
Consumer Banking | American National |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  | $ 78,000
Consumer Banking | Sandy Spring |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |
Goodwill |  |  |  |  | $ 109,300 |  |
Operating segments | Wholesale Banking |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |
Interest and dividend income | 443,315 | 314,460 | 740,302 | 588,214 |  |  |
Interest expense | 284,936 | 219,512 | 482,583 | 412,392 |  |  |
Net interest income | 158,379 | 94,948 | 257,719 | 175,822 |  |  |
Provision for credit losses | 80,022 | 20,221 | 95,067 | 25,587 |  |  |
Net interest income after provision for credit losses | 78,357 | 74,727 | 162,652 | 150,235 |  |  |
Noninterest income | 23,652 | 10,777 | 35,451 | 19,140 |  |  |
Noninterest expenses | 84,593 | 48,450 | 139,805 | 92,405 |  |  |
Income (loss) before income taxes | 17,416 | 37,054 | 58,298 | 76,970 |  |  |
LHFI, net of deferred fees and costs | 22,889,472 |  | 22,889,472 |  |  | 15,514,640 |
Goodwill | 1,237,585 |  | 1,237,585 |  |  | 850,035 |
Deposits | 11,733,733 |  | 11,733,733 |  |  | 7,193,403 |
Operating segments | Wholesale Banking | American National |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |
Goodwill |  |  |  |  |  | 210,800 |
Operating segments | Wholesale Banking | Sandy Spring |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |
Goodwill | 387,600 |  | 387,600 |  |  |  |
Operating segments | Consumer Banking |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |
Interest and dividend income | 248,482 | 154,739 | 404,624 | 290,757 |  |  |
Interest expense | 135,631 | 78,730 | 215,990 | 145,511 |  |  |
Net interest income | 112,851 | 76,009 | 188,634 | 145,246 |  |  |
Provision for credit losses | 25,685 | 1,539 | 28,278 | 4,411 |  |  |
Net interest income after provision for credit losses | 87,166 | 74,470 | 160,356 | 140,835 |  |  |
Noninterest income | 19,661 | 15,254 | 34,295 | 27,869 |  |  |
Noninterest expenses | 98,515 | 65,099 | 166,082 | 120,978 |  |  |
Income (loss) before income taxes | 8,312 | 24,625 | 28,569 | 47,726 |  |  |
LHFI, net of deferred fees and costs | 5,228,222 |  | 5,228,222 |  |  | 3,085,207 |
Goodwill | 473,327 |  | 473,327 |  |  | 364,018 |
Deposits | 17,908,932 |  | 17,908,932 |  |  | 11,899,197 |
Operating segments | Consumer Banking | American National |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |
Goodwill |  |  |  |  |  | 78,000 |
Operating segments | Consumer Banking | Sandy Spring |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |
Goodwill | 109,300 |  | 109,300 |  |  |  |
Corporate Other |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |
Interest and dividend income | (181,425) | (148,311) | (328,718) | (295,169) |  |  |
Interest expense | (231,566) | (161,888) | (387,901) | (306,459) |  |  |
Net interest income | 50,141 | 13,577 | 59,183 | 11,290 |  |  |
Provision for credit losses | 0 | (9) | 0 | (9) |  |  |
Net interest income after provision for credit losses | 50,141 | 13,586 | 59,183 | 11,299 |  |  |
Noninterest income | 38,209 | (2,219) | 40,939 | 2,356 |  |  |
Noninterest expenses | 96,590 | 36,456 | 107,995 | 41,896 |  |  |
Income (loss) before income taxes | (8,240) | $ (25,089) | (7,873) | $ (28,241) |  |  |
LHFI, net of deferred fees and costs | (789,361) |  | (789,361) |  |  | (129,226) |
Goodwill | 0 |  | 0 |  |  | 0 |
Deposits | $ 1,329,510 |  | $ 1,329,510 |  |  | $ 1,305,019 |

X
- Definition Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements. + References No definition available. + Details
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