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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) $ in Millions		6 Months Ended
	Dec. 31, 2019 USD ($) segment	Jun. 30, 2020 USD ($) segment	Jan. 31, 2020
Schedule of Equity Method Investments [Line Items]
Equity Method Investments	$ 0.2	$ 0.2
Proportional Amortization Investments	15.3	14.6
Cost Method Investments	$ 1.6	$ 1.6
Number of operating segments | segment	3	1
Available for sale accrued interest receivable		$ 4.3
Financing receivable accrued interest receivable		$ 15.3
Oahu HomeLoans, LLC
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage			50.00%

X

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Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss

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Proportional Amortization Investments

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