LOANS AND ALLOWANCE FOR CREDIT LOSSES - Schedule of Participating Mortgage Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance	$ 7,282,235	$ 7,245,952
Unamortized net premiums	18,592	18,005
Unamortized net deferred (fees) costs	(1,558)	819
Unamortized SBA PPP fees	0	(831)
Fair value adjustment	(9,949)	(12,465)
Loans receivable, net	7,289,320	7,251,480
PMB Acquisition
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value adjustment	(8,500)	(10,600)
PMB Acquisition \| PCD loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value adjustment	$ (4,400)	$ (3,900)

Financing Receivable Fair Value Adjustment

No definition available.

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- Definition

Financing Receivable, Unamortized Fees, Small Business Administration Paycheck Protection Program (SBA PPP) Fees

+ References

No definition available.

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- Definition

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.

+ References

No definition available.

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- Definition

Amortized cost, before allowance for credit loss, fee, and loan in process, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

+ References

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- Definition

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

+ References

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-Publisher FASB
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- Definition

Amount of unamortized loan commitment, origination, and other costs (fees) on financing receivable recognized as adjustment to yield. Excludes financing receivable covered under loss sharing agreement.

+ References

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- Definition

Amount of unamortized purchase premium (discount) on financing receivable. Excludes financing receivable covered under loss sharing agreement.

+ References

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