PORTFOLIO LOANS - Schedule of Financial Instruments Owned and Pledged as Collateral (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged loans	$ 13,030,950	$ 13,393,776
Total pledged loans
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged loans	9,204,970	6,905,935
FHLB
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged loans	7,053,467	5,051,512
Federal Reserve Bank
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged loans	$ 2,151,503	$ 1,854,423

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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