PORTFOLIO LOANS - Schedule of Risk Grades of Portfolio Loans, Further Sorted by Origination (CY) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Financing Receivable, Credit Quality Indicator [Line Items]
2025	$ 2,775,707	$ 1,137,553
2025 charge-off	7,674	9
2024	1,552,638	1,129,573
2024 charge-off	14,536	15,011
2023	1,762,494	1,485,489
2023 charge-off	4,617	254
2022	2,087,139	1,250,313
2022 charge-off	1,497	3,099
2021	1,612,675	619,027
2021 charge-off	13,844	4
Prior	1,277,588	774,903
Prior, charge-off	11,581	1,189
Revolving Loans	2,499,558	1,300,229
Revolving Loans, charge-off	5,893	0
Total	13,567,799	7,697,087
Total, gross write-offs	59,642	19,566
Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total	11,818,297	6,764,070
Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Total	1,229,823	756,610
Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total	349,822	92,296
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total	118,659	62,023
Substandard Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
Total	51,198	22,088
Commercial loans
Financing Receivable, Credit Quality Indicator [Line Items]
Total	10,818,515	5,552,288
Commercial loans | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total	9,117,788	4,635,264
Commercial loans | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Total	1,199,149	747,202
Commercial loans | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total	342,315	91,414
Commercial loans | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total	116,860	59,480
Commercial loans | Substandard Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
Total	42,403	18,928
Commercial loans | C&I and other commercial
Financing Receivable, Credit Quality Indicator [Line Items]
2025	886,826	376,534
2025 charge-off	4,667	0
2024	582,244	206,282
2024 charge-off	3,332	14,980
2023	476,569	215,489
2023 charge-off	4,347	148
2022	297,050	144,671
2022 charge-off	1,450	22
2021	243,208	76,789
2021 charge-off	13,591	0
Prior	148,697	144,014
Prior, charge-off	11,456	303
Revolving Loans	1,594,614	740,736
Revolving Loans, charge-off	5,716	0
Total	4,229,208	1,904,515
Total, gross write-offs	44,559	15,453
Commercial loans | C&I and other commercial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025	833,539	320,831
2024	486,278	147,909
2023	342,560	163,870
2022	207,053	125,053
2021	178,429	74,146
Prior	122,904	117,234
Revolving Loans	1,396,826	596,295
Total	3,567,589	1,545,338
Commercial loans | C&I and other commercial | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2025	21,750	38,734
2024	79,853	49,394
2023	56,387	44,709
2022	38,786	16,393
2021	48,624	2,175
Prior	16,778	20,964
Revolving Loans	112,935	109,055
Total	375,113	281,424
Commercial loans | C&I and other commercial | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2025	21,712	1,718
2024	11,609	2,293
2023	56,578	5,658
2022	26,343	2,634
2021	5,339	106
Prior	800	2,540
Revolving Loans	54,433	21,203
Total	176,814	36,152
Commercial loans | C&I and other commercial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2025	8,336	15,186
2024	605	6,545
2023	20,444	788
2022	14,603	591
2021	9,868	320
Prior	3,655	2,424
Revolving Loans	17,883	11,895
Total	75,394	37,749
Commercial loans | C&I and other commercial | Substandard Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
2025	1,489	65
2024	3,899	141
2023	600	464
2022	10,265	0
2021	948	42
Prior	4,560	852
Revolving Loans	12,537	2,288
Total	34,298	3,852
Commercial loans | CRE
Financing Receivable, Credit Quality Indicator [Line Items]
2025	1,339,978	467,816
2025 charge-off	1,297	0
2024	569,197	488,528
2024 charge-off	11,057	0
2023	841,829	828,525
2023 charge-off	0	0
2022	1,197,182	709,847
2022 charge-off	0	2,999
2021	941,492	389,461
2021 charge-off	253	0
Prior	612,815	358,936
Prior, charge-off	0	315
Revolving Loans	47,525	26,451
Revolving Loans, charge-off	0	0
Total	5,550,018	3,269,564
Total, gross write-offs	12,607	3,314
Commercial loans | CRE | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025	1,077,169	291,503
2024	483,950	354,591
2023	710,448	755,266
2022	1,035,426	645,994
2021	740,680	356,867
Prior	515,631	314,340
Revolving Loans	43,830	25,457
Total	4,607,134	2,744,018
Commercial loans | CRE | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2025	210,673	115,078
2024	61,926	132,900
2023	119,986	60,611
2022	143,072	62,408
2021	161,387	28,320
Prior	69,789	38,733
Revolving Loans	2,572	895
Total	769,405	438,945
Commercial loans | CRE | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2025	49,648	39,252
2024	22,642	643
2023	2,991	8,020
2022	13,811	1,395
2021	32,109	4,165
Prior	18,858	1,517
Revolving Loans	908	49
Total	140,967	55,041
Commercial loans | CRE | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2025	2,416	6,983
2024	679	355
2023	3,857	4,628
2022	4,873	50
2021	7,316	95
Prior	5,324	4,346
Revolving Loans	215	50
Total	24,680	16,507
Commercial loans | CRE | Substandard Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
2025	72	15,000
2024	0	39
2023	4,547	0
2022	0	0
2021	0	14
Prior	3,213	0
Revolving Loans	0	0
Total	7,832	15,053
Commercial loans | Real estate construction
Financing Receivable, Credit Quality Indicator [Line Items]
2025	447,571	185,219
2025 charge-off	0	0
2024	270,502	140,905
2024 charge-off	0	0
2023	111,929	12,205
2023 charge-off	0	0
2022	112,234	25,233
2022 charge-off	0	0
2021	12,862	2,213
2021 charge-off	0	0
Prior	2,733	1,124
Prior, charge-off	0	0
Revolving Loans	81,458	11,310
Revolving Loans, charge-off	0	0
Total	1,039,289	378,209
Total, gross write-offs	0	0
Commercial loans | Real estate construction | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025	395,019	159,825
2024	268,117	134,450
2023	107,930	12,205
2022	89,673	24,781
2021	5,356	2,213
Prior	2,733	1,124
Revolving Loans	74,237	11,310
Total	943,065	345,908
Commercial loans | Real estate construction | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2025	18,571	20,170
2024	2,112	6,455
2023	3,999	0
2022	22,561	208
2021	167	0
Prior	0	0
Revolving Loans	7,221	0
Total	54,631	26,833
Commercial loans | Real estate construction | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2025	17,961	0
2024	0	0
2023	0	0
2022	0	221
2021	6,573	0
Prior	0	0
Revolving Loans	0	0
Total	24,534	221
Commercial loans | Real estate construction | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2025	16,020	5,224
2024	0	0
2023	0	0
2022	0	0
2021	766	0
Prior	0	0
Revolving Loans	0	0
Total	16,786	5,224
Commercial loans | Real estate construction | Substandard Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
2025	0	0
2024	273	0
2023	0	0
2022	0	23
2021	0	0
Prior	0	0
Revolving Loans	0	0
Total	273	23
Retail loans
Financing Receivable, Credit Quality Indicator [Line Items]
Total	2,749,284	2,144,799
Retail loans | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total	2,700,509	2,128,806
Retail loans | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Total	30,674	9,408
Retail loans | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total	7,507	882
Retail loans | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total	1,799	2,543
Retail loans | Substandard Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
Total	8,795	3,160
Retail loans | CRE
Financing Receivable, Credit Quality Indicator [Line Items]
2025	96,099	102,988
2025 charge-off	1,164	0
2024	128,430	238,099
2024 charge-off	0	0
2023	298,742	371,259
2023 charge-off	0	0
2022	450,218	358,351
2022 charge-off	0	0
2021	410,552	148,260
2021 charge-off	0	0
Prior	512,458	270,229
Prior, charge-off	51	168
Revolving Loans	258,117	207,271
Revolving Loans, charge-off	36	0
Total	2,154,616	1,696,457
Total, gross write-offs	1,251	168
Retail loans | CRE | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025	93,212	101,582
2024	127,475	237,306
2023	269,877	366,820
2022	446,309	354,380
2021	407,851	147,236
Prior	508,504	267,431
Revolving Loans	252,987	205,885
Total	2,106,215	1,680,640
Retail loans | CRE | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2025	2,686	1,255
2024	569	550
2023	24,601	2,733
2022	1,492	3,377
2021	267	872
Prior	482	124
Revolving Loans	577	497
Total	30,674	9,408
Retail loans | CRE | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2025	47	151
2024	78	0
2023	4,028	344
2022	1,454	0
2021	1,686	0
Prior	0	372
Revolving Loans	214	15
Total	7,507	882
Retail loans | CRE | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2025	0	0
2024	0	243
2023	108	1,018
2022	440	503
2021	484	0
Prior	631	776
Revolving Loans	136	3
Total	1,799	2,543
Retail loans | CRE | Substandard Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
2025	154	0
2024	308	0
2023	128	344
2022	523	91
2021	264	152
Prior	2,841	1,526
Revolving Loans	4,203	871
Total	8,421	2,984
Retail loans | Retail other
Financing Receivable, Credit Quality Indicator [Line Items]
2025	5,233	4,996
2025 charge-off	546	9
2024	2,265	55,759
2024 charge-off	147	31
2023	33,425	58,011
2023 charge-off	270	106
2022	30,455	12,211
2022 charge-off	47	78
2021	4,561	2,304
2021 charge-off	0	4
Prior	885	600
Prior, charge-off	74	403
Revolving Loans	517,844	314,461
Revolving Loans, charge-off	141	0
Total	594,668	448,342
Total, gross write-offs	1,225	631
Retail loans | Retail other | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025	5,233	4,996
2024	2,265	55,665
2023	33,349	57,944
2022	30,321	12,207
2021	4,561	2,304
Prior	885	589
Revolving Loans	517,680	314,461
Total	594,294	448,166
Retail loans | Retail other | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Total	0	0
Retail loans | Retail other | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total	0	0
Retail loans | Retail other | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total	0	0
Retail loans | Retail other | Substandard Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
2025	0	0
2024	0	94
2023	76	67
2022	134	4
2021	0	0
Prior	0	11
Revolving Loans	164	0
Total	$ 374	$ 176