Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Name:	us-gaap_EquitySecuritiesFvNiCurrentAndNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

DESCRIPTION OF BUSINESS (Details) a in Thousands, $ in Thousands, ft² in Millions	6 Months Ended
	Jun. 30, 2025 USD ($) ft² property state loan	Dec. 31, 2024 USD ($) a county	Jun. 30, 2024 a
DESCRIPTION OF BUSINESS
Number of commercial loan investments \| loan	4
Investment in Alpine Income Property Trust, Inc. \| $	$ 34,752	$ 39,666
Alpine Income Property Trust, Inc. Common Stock and Alpine Income Property OP, LP Limited Partnership Units
DESCRIPTION OF BUSINESS
Investment in Alpine Income Property Trust, Inc. \| $	$ 34,752	$ 39,666
Investment ownership percentage (as a percent)	15.40%
Conversion ratio on merger	1
FLORIDA
DESCRIPTION OF BUSINESS
Number of states in which entity operates \| county		19
Subsurface area of portfolio of mineral interests \| a		352	352
Commercial
DESCRIPTION OF BUSINESS
Number of real estate properties \| property	24
Number of states in which entity operates \| state	7
Gross leasable space \| ft²	5.3
Number of preferred equity investment \| property	2