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INVESTMENT SECURITIES - General Information (Details) - USD ($) $ in Thousands		12 Months Ended			49 Months Ended
	Nov. 26, 2019	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2023
Marketable Securities [Line Items]
Investment in Alpine Income Property Trust, Inc.		$ 39,445	$ 42,041		$ 39,445
Alpine Income Property Trust, Inc. Common Stock and Alpine Income Property OP, LP Limited Partnership Units
Marketable Securities [Line Items]
Number of shares owned		2,330,000			2,330,000
Investment in Alpine Income Property Trust, Inc.		$ 39,445	$ 42,041		$ 39,445
Investment ownership percentage (as a percent)		15.70%			15.70%
Common Stock
Marketable Securities [Line Items]
Share purchased	421,053	129,271	155,665	8,088	1,108,814
Investment in Alpine Income Property Trust, Inc.		$ 18,750	$ 18,690		$ 18,750
Investment ownership percentage (as a percent)		7.50%			7.50%
Alpine Income Property OP, LP Limited Partnership Units
Marketable Securities [Line Items]
Share purchased		1,200,000
Investment in Alpine Income Property Trust, Inc.		$ 20,695	$ 23,351		$ 20,695
Investment ownership percentage (as a percent)		8.20%			8.20%

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