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PORTFOLIO LOANS - Schedule of Risk Grades Segregated by Category and Class of Portfolio Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	$ 13,808,619	$ 7,697,087
Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	12,022,159	6,764,070
Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	1,302,369	756,610
Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	312,688	92,296
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	117,789	62,023
Substandard Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	53,614	22,088
Commercial loans
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	11,088,431	5,552,288
Commercial loans | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	9,326,053	4,635,264
Commercial loans | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	1,296,038	747,202
Commercial loans | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	305,840	91,414
Commercial loans | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	114,975	59,480
Commercial loans | Substandard Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	45,525	18,928
Commercial loans | C&I and other commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	4,476,869	1,904,515
Commercial loans | C&I and other commercial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	3,790,854	1,545,338
Commercial loans | C&I and other commercial | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	436,157	281,424
Commercial loans | C&I and other commercial | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	127,315	36,152
Commercial loans | C&I and other commercial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	87,603	37,749
Commercial loans | C&I and other commercial | Substandard Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	34,940	3,852
Commercial loans | CRE
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	5,569,759	3,269,564
Commercial loans | CRE | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	4,571,016	2,744,018
Commercial loans | CRE | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	813,941	438,945
Commercial loans | CRE | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	152,544	55,041
Commercial loans | CRE | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	21,695	16,507
Commercial loans | CRE | Substandard Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	10,563	15,053
Commercial loans | Real estate construction
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	1,041,803	378,209
Commercial loans | Real estate construction | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	964,183	345,908
Commercial loans | Real estate construction | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	45,940	26,833
Commercial loans | Real estate construction | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	25,981	221
Commercial loans | Real estate construction | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	5,677	5,224
Commercial loans | Real estate construction | Substandard Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	22	23
Retail loans
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	2,720,188	2,144,799
Retail loans | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	2,696,106	2,128,806
Retail loans | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	6,331	9,408
Retail loans | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	6,848	882
Retail loans | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	2,814	2,543
Retail loans | Substandard Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	8,089	3,160
Retail loans | CRE
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	2,228,959	1,696,457
Retail loans | CRE | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	2,205,127	1,680,640
Retail loans | CRE | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	6,331	9,408
Retail loans | CRE | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	6,848	882
Retail loans | CRE | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	2,806	2,543
Retail loans | CRE | Substandard Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	7,847	2,984
Retail loans | Retail other
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	491,229	448,342
Retail loans | Retail other | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	490,979	448,166
Retail loans | Retail other | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	0	0
Retail loans | Retail other | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	0	0
Retail loans | Retail other | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	8	0
Retail loans | Retail other | Substandard Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
Total portfolio loans	$ 242	$ 176

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Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

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