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SECURITIES - Summary of Securities (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2023 USD ($) security | Dec. 31, 2022 USD ($) security
Debt Securities, Available-for-sale [Line Items] |  |
Outstanding Face Amount | $ 1,471,801 | $ 1,670,439
Amortized Cost Basis | 537,312 | 608,439
Gross Unrealized Gains | 361 | 144
Gross Unrealized Losses | (17,758) | (21,163)
Carrying value, before allowance for credit loss | $ 519,915 | $ 587,420
Number of Securities | security | 100 | 106
Weighted Average Coupon | 2.37% | 2.06%
Weighted Average Yield | 5.72% | 5.29%
Remaining Duration | 1 year 7 days | 1 year 25 days
Amortized Cost Basis | $ 160 |
Gross Unrealized Gains | 0 |
Gross Unrealized Losses | (47) |
Carrying Value | $ 113 | $ 119
Number of equity securities | security | 1 | 1
Allowance for current expected credit losses | $ (20) | $ (20)
Total Amortized Cost Basis | 537,472 | 608,599
Total Gross Unrealized Gains | 361 | 144
Total real estate securities, Gross Unrealized Losses | (17,825) | (21,224)
Carrying Value | $ 520,008 | $ 587,519
Total number of Securities | security | 101 | 107
CMBS |  |
Debt Securities, Available-for-sale [Line Items] |  |
Outstanding Face Amount | $ 503,183 | $ 562,839
Amortized Cost Basis | 502,710 | 562,246
Gross Unrealized Gains | 43 | 0
Gross Unrealized Losses | (17,563) | (20,913)
Carrying value, before allowance for credit loss | $ 485,190 | $ 541,333
Number of Securities | security | 70 | 71
Weighted Average Coupon | 5.72% | 5.22%
Weighted Average Yield | 5.76% | 5.32%
Remaining Duration | 1 year 3 days | 1 year 21 days
Risk retention requirement, amount | $ 9,000 | $ 9,000
CMBS interest-only |  |
Debt Securities, Available-for-sale [Line Items] |  |
Outstanding Face Amount | 898,620 | 1,026,195
Amortized Cost Basis | 9,493 | 10,498
Gross Unrealized Gains | 177 | 121
Gross Unrealized Losses | (134) | (176)
Carrying value, before allowance for credit loss | $ 9,536 | $ 10,443
Number of Securities | security | 9 | 10
Weighted Average Coupon | 0.59% | 0.41%
Weighted Average Yield | 3.82% | 3.65%
Remaining Duration | 1 year 4 months 13 days | 1 year 5 months 12 days
Risk retention requirement, amount | $ 400 | $ 400
GNMA interest-only |  |
Debt Securities, Available-for-sale [Line Items] |  |
Outstanding Face Amount | 44,966 | 45,369
Amortized Cost Basis | 265 | 285
Gross Unrealized Gains | 139 | 17
Gross Unrealized Losses | (19) | (21)
Carrying value, before allowance for credit loss | $ 385 | $ 281
Number of Securities | security | 14 | 14
Weighted Average Coupon | 0.31% | 0.31%
Weighted Average Yield | 5.95% | 4.23%
Remaining Duration | 3 years 1 month 2 days | 3 years 3 months 18 days
Agency securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Outstanding Face Amount | $ 32 | $ 36
Amortized Cost Basis | 33 | 36
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | (1) | (1)
Carrying value, before allowance for credit loss | $ 32 | $ 35
Number of Securities | security | 1 | 1
Weighted Average Coupon | 4.00% | 4.00%
Weighted Average Yield | 2.70% | 2.70%
Remaining Duration | 1 year 5 months 1 day | 1 year 6 months 14 days
U.S. Treasury securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Outstanding Face Amount | $ 25,000 | $ 36,000
Amortized Cost Basis | 24,811 | 35,374
Gross Unrealized Gains | 2 | 6
Gross Unrealized Losses | (41) | (52)
Carrying value, before allowance for credit loss | $ 24,772 | $ 35,328
Number of Securities | security | 6 | 10
Weighted Average Yield | 4.10% | 4.17%
Remaining Duration | 3 months 14 days | 7 months 6 days
Common Stock |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost Basis |  | $ 160
Gross Unrealized Gains |  | 0
Gross Unrealized Losses |  | $ (41)

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