COMMITMENTS AND CONTINGENCIES (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) loan	Sep. 30, 2022 USD ($) loan	Jun. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)	Jun. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)
Guarantor Obligations [Line Items]
Provision for (recovery of) credit losses	$ 18,414,000	$ 7,454,000	$ 63,255,000	$ 34,693,000
Allowance for credit losses	175,988,000	146,195,000	175,988,000	146,195,000	$ 171,869,000	$ 151,861,000	$ 141,970,000	$ 94,507,000
Unfunded Lending Commitment
Guarantor Obligations [Line Items]
Provision for (recovery of) credit losses	100,000	$ 700,000	200,000	$ 600,000
Allowance for credit losses	$ 12,100,000		12,100,000			$ 11,900,000
Secondary Market Loan Sales
Guarantor Obligations [Line Items]
Provision for (recovery of) credit losses			$ 0
Number of loans repurchased | loan			1	2
Loans repurchase amount			$ 800,000	$ 800,000