PORTFOLIO LOANS - Schedule of Risk Grades of Portfolio Loans, Further Sorted by Origination (PY) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Financing Receivable, Credit Quality Indicator [Line Items]
2024	$ 2,775,707	$ 1,137,553
2024 charge-off	7,674	9
2023	1,552,638	1,129,573
2023 charge-off	14,536	15,011
2022	1,762,494	1,485,489
2022 charge-off	4,617	254
2021	2,087,139	1,250,313
2021 charge-off	1,497	3,099
2020	1,612,675	619,027
2020 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]
2024	886,826	376,534
2024 charge-off	4,667	0
2023	582,244	206,282
2023 charge-off	3,332	14,980
2022	476,569	215,489
2022 charge-off	4,347	148
2021	297,050	144,671
2021 charge-off	1,450	22
2020	243,208	76,789
2020 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]
2024	833,539	320,831
2023	486,278	147,909
2022	342,560	163,870
2021	207,053	125,053
2020	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]
2024	21,750	38,734
2023	79,853	49,394
2022	56,387	44,709
2021	38,786	16,393
2020	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]
2024	21,712	1,718
2023	11,609	2,293
2022	56,578	5,658
2021	26,343	2,634
2020	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]
2024	8,336	15,186
2023	605	6,545
2022	20,444	788
2021	14,603	591
2020	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]
2024	1,489	65
2023	3,899	141
2022	600	464
2021	10,265	0
2020	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]
2024	1,339,978	467,816
2024 charge-off	1,297	0
2023	569,197	488,528
2023 charge-off	11,057	0
2022	841,829	828,525
2022 charge-off	0	0
2021	1,197,182	709,847
2021 charge-off	0	2,999
2020	941,492	389,461
2020 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]
2024	1,077,169	291,503
2023	483,950	354,591
2022	710,448	755,266
2021	1,035,426	645,994
2020	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]
2024	210,673	115,078
2023	61,926	132,900
2022	119,986	60,611
2021	143,072	62,408
2020	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]
2024	49,648	39,252
2023	22,642	643
2022	2,991	8,020
2021	13,811	1,395
2020	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]
2024	2,416	6,983
2023	679	355
2022	3,857	4,628
2021	4,873	50
2020	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]
2024	72	15,000
2023	0	39
2022	4,547	0
2021	0	0
2020	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]
2024	447,571	185,219
2024 charge-off	0	0
2023	270,502	140,905
2023 charge-off	0	0
2022	111,929	12,205
2022 charge-off	0	0
2021	112,234	25,233
2021 charge-off	0	0
2020	12,862	2,213
2020 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]
2024	395,019	159,825
2023	268,117	134,450
2022	107,930	12,205
2021	89,673	24,781
2020	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]
2024	18,571	20,170
2023	2,112	6,455
2022	3,999	0
2021	22,561	208
2020	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]
2024	17,961	0
2023	0	0
2022	0	0
2021	0	221
2020	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]
2024	16,020	5,224
2023	0	0
2022	0	0
2021	0	0
2020	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]
2024	0	0
2023	273	0
2022	0	0
2021	0	23
2020	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]
2024	96,099	102,988
2024 charge-off	1,164	0
2023	128,430	238,099
2023 charge-off	0	0
2022	298,742	371,259
2022 charge-off	0	0
2021	450,218	358,351
2021 charge-off	0	0
2020	410,552	148,260
2020 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]
2024	93,212	101,582
2023	127,475	237,306
2022	269,877	366,820
2021	446,309	354,380
2020	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]
2024	2,686	1,255
2023	569	550
2022	24,601	2,733
2021	1,492	3,377
2020	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]
2024	47	151
2023	78	0
2022	4,028	344
2021	1,454	0
2020	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]
2024	0	0
2023	0	243
2022	108	1,018
2021	440	503
2020	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]
2024	154	0
2023	308	0
2022	128	344
2021	523	91
2020	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]
2024	5,233	4,996
2024 charge-off	546	9
2023	2,265	55,759
2023 charge-off	147	31
2022	33,425	58,011
2022 charge-off	270	106
2021	30,455	12,211
2021 charge-off	47	78
2020	4,561	2,304
2020 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]
2024	5,233	4,996
2023	2,265	55,665
2022	33,349	57,944
2021	30,321	12,207
2020	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]
2024	0	0
2023	0	94
2022	76	67
2021	134	4
2020	0	0
Prior	0	11
Revolving Loans	164	0
Total	$ 374	$ 176