LOANS RECEIVABLE AND OTHER INVESTMENTS - Narrative (Details) $ in Thousands	12 Months Ended
Dec. 31, 2019 USD ($) loan	Dec. 31, 2018 USD ($) loan	Dec. 31, 2017 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Book value of loans	$ 67,527	$ 96,492
Loan loss reserve	$ 564	$ 1,258
Loan receivable investment with recognized interest income \| loan		1
Book value of loan receivable investment with recognized interest income		$ 4,300
Nonperforming Financial Instruments
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of impaired loans \| loan	0	1
Number of loans on nonaccrual status \| loan	2	2
Value of loans on nonaccrual status	$ 0	$ 1,300
Principal balance of impaired loan		1,300	$ 1,400
Portfolio-Based Loan Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Increase (decrease) in provision	4	500
Loan loss reserve	600	600
Specific Loans \| Nonperforming Financial Instruments
Accounts, Notes, Loans and Financing Receivable [Line Items]
Provision for loan losses	1,200	700
Loan loss reserve	$ 0	$ 700
Receivables Acquired with Deteriorated Credit Quality
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of impaired loans \| loan	4	7
Book value of loans	$ 2,300	$ 27,700
Outstanding principal balance	$ 800	$ 4,200
Number of loans with deteriorated credit quality repaid \| loan	3

Financing Receivable, Number Of Loans, 90 Days Past Due And Still Accruing

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Loans And Leases Receivable, Number Of Loans, Impaired

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Loans And Leases Receivable, Number Of Loans Repaid

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Amount of increase (decrease) of allowance reserve for credit loss.

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Amount of financing receivable 90 days or more past due and still accruing.

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Amount of financing receivable on nonaccrual status.

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Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without related allowance for credit losses.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount of expense related to estimated loss from loan and lease transactions.

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