COMMERCIAL MORTGAGE LOANS HELD-FOR-INVESTMENT - Additional Information (Details)		3 Months Ended		6 Months Ended	12 Months Ended
		Jun. 30, 2025 USD ($) loan	Mar. 31, 2025 USD ($)	Jun. 30, 2025 USD ($)	Dec. 31, 2024 USD ($) contract
Financing Receivable, Credit Quality Indicator [Line Items]
Average risk rating, moderate		3.5		3.5	3.5
Financing receivable, allowance for credit loss, period increase (decrease)		$ 2,800,000
Loans held for investment	[1]	$ 14,252,268		$ 14,252,268	$ 11,320,220
Number of loans foreclosed in period | loan		2
Maximum
Financing Receivable, Credit Quality Indicator [Line Items]
Capitalization rate assumption percentage				7.40%
Minimum
Financing Receivable, Credit Quality Indicator [Line Items]
Capitalization rate assumption percentage				5.50%
Risk rating, 5
Financing Receivable, Credit Quality Indicator [Line Items]
Unpaid principal balance of default risk loans		$ 104,500,000		$ 104,500,000
Amortized cost of default risk loans		96,700,000		96,700,000
Fair value of default risk loans		$ 96,800,000		96,800,000
Risk rating, 5 | Dallas, TX
Financing Receivable, Credit Quality Indicator [Line Items]
Outstanding principal balance				31,900,000
Principal payment amount				$ 2,000,000.0
Term extention period				2 years
Risk rating, 5 | Dallas, TX | Maximum
Financing Receivable, Credit Quality Indicator [Line Items]
Credit spread percentage				3.90%
Risk rating, 5 | Dallas, TX | Minimum
Financing Receivable, Credit Quality Indicator [Line Items]
Credit spread percentage				3.40%
Commercial Real Estate Portfolio Segment | Risk rating, 3
Financing Receivable, Credit Quality Indicator [Line Items]
Average risk rating, percentage		63.00%		63.00%	63.70%
Commercial loans that paid off				$ 94,600,000
Transition of commercial loans held for sale to a lower risk rating				88,100,000
Transition of commercial loans held for sale to a risk rating two steps lower				29,600,000
Commercial Real Estate Portfolio Segment | Risk rating, 4
Financing Receivable, Credit Quality Indicator [Line Items]
Commercial loans that paid off				21,500,000
Transition of commercial loans held for sale to a lower risk rating				21,100,000
Transition of commercial loans held for sale to a higher risk rating				75,900,000
Commercial loans held for sale foreclosed and moved to REO				11,500,000
Commercial Real Estate Portfolio Segment | Risk rating, 5
Financing Receivable, Credit Quality Indicator [Line Items]
Commercial loans that paid off				2,000,000
Transition of commercial loans held for sale to a higher risk rating				44,600,000
Transition of commercial loans held for sale to a risk rating two steps higher				49,400,000
Commercial loans held for sale foreclosed and moved to REO				15,400,000
Commercial Real Estate Portfolio Segment | Risk rating, 2
Financing Receivable, Credit Quality Indicator [Line Items]
Commercial loans that paid off				3,600,000
Transition of commercial loans held for sale to a lower risk rating				18,900,000
Commercial Real Estate Portfolio Segment | Risk Level, Monetary Default Default Risk | Orlando, FL | Multifamily
Financing Receivable, Credit Quality Indicator [Line Items]
Transition of commercial loans held for sale to a risk rating two steps higher				19,600,000
Commercial Real Estate Portfolio Segment | Risk Level, Monetary Default Default Risk | Colorado Springs, CO | Multifamily
Financing Receivable, Credit Quality Indicator [Line Items]
Transition of commercial loans held for sale to a risk rating two steps higher				10,500,000
Transition of commercial loans held for sale to a risk rating allowance after analysis two steps higher				800,000
Recognized interest on loan		$ 100,000		100,000
Commercial Real Estate Portfolio Segment | Risk Level, Monetary Default Default Risk | Clarkston, GA | Multifamily
Financing Receivable, Credit Quality Indicator [Line Items]
Transition of commercial loans held for sale to a risk rating two steps higher				24,500,000
Transition of commercial loans held for sale to a risk rating allowance after analysis two steps higher				3,800,000
Commercial Real Estate Portfolio Segment | Risk Level, Monetary Default Default Risk | Ypsilanti, MI | Multifamily
Financing Receivable, Credit Quality Indicator [Line Items]
Transition of commercial loans held for sale to a risk rating two steps higher				11,900,000
Transition of commercial loans held for sale to a risk rating allowance after analysis two steps higher				2,900,000
Commercial Real Estate Portfolio Segment | Risk Level, Monetary Default Default Risk | Cedar Park, TX | Multifamily
Financing Receivable, Credit Quality Indicator [Line Items]
Transition of commercial loans held for sale to a risk rating two steps higher				13,700,000
Recognized interest on loan		100,000
Commercial Real Estate Portfolio Segment | Risk Level, Monetary Default Default Risk | San Antonio, TX | Multifamily
Financing Receivable, Credit Quality Indicator [Line Items]
Transition of commercial loans held for sale to a risk rating two steps higher				26,600,000	$ 15,400,000
Transition of commercial loans held for sale to a risk rating allowance after analysis two steps higher				200,000	2,400,000
Commercial Real Estate Portfolio Segment | Risk Level, Monetary Default Default Risk | San Antonio, TX | Multifamily
Financing Receivable, Credit Quality Indicator [Line Items]
Transition of commercial loans held for sale to a risk rating two steps higher				9,100,000
Commercial Real Estate Portfolio Segment | Risk Level, Monetary Default Default Risk | Des Moines, IA | Multifamily
Financing Receivable, Credit Quality Indicator [Line Items]
Transition of commercial loans held for sale to a risk rating two steps higher				$ 8,200,000
Recognized interest on loan		$ 0
Commercial Real Estate Portfolio Segment | Risk Level, Monetary Default Default Risk | Dallas, TX | Multifamily
Financing Receivable, Credit Quality Indicator [Line Items]
Transition of commercial loans held for sale to a risk rating two steps higher					31,600,000
Commercial Real Estate Portfolio Segment | Risk Level, Monetary Default Default Risk | Polk Country, FL | Multifamily
Financing Receivable, Credit Quality Indicator [Line Items]
Transition of commercial loans held for sale to a risk rating two steps higher					6,100,000
Transition of commercial loans held for sale to a risk rating allowance after analysis two steps higher					$ 600,000
Number of health properties | contract					2
Commercial Real Estate Portfolio Segment | Risk Level, Monetary Default Default Risk | Philadelphia, PA | Multifamily
Financing Receivable, Credit Quality Indicator [Line Items]
Transition of commercial loans held for sale to a risk rating two steps higher					$ 15,000,000.0
Transition of commercial loans held for sale to a risk rating allowance after analysis two steps higher					$ 100,000
Commercial Real Estate Portfolio Segment | Risk Level, Monetary Default Default Risk | Houston, TX | Multifamily
Financing Receivable, Credit Quality Indicator [Line Items]
Transition of commercial loans held for sale to a risk rating two steps higher			$ 11,500,000
Transition of commercial loans held for sale to a risk rating allowance after analysis two steps higher			$ 500,000

[1] Our consolidated balance sheets include assets and liabilities of consolidated variable interest entities ("VIEs") as the Company was the primary beneficiary of these VIEs. As of June 30, 2025 and December 31, 2024, assets of consolidated VIEs totaled $934,090,475 and $1,058,138,406, respectively and the liabilities of consolidated VIEs totaled $712,768,638 and $831,001,605 respectively. See Note 4 for further discussion.