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v3.23.1

Investment Securities Available for Sale, at Fair Value - Narrative (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items] |  |  |
Accrued interest | $ 900,000 |  | $ 400,000
Unrealized gains (losses) on investments | $ 900,000 | $ 4,600,000 |
Realized loss |  | 374,000 |
Contractual maturities (up to) | 36 years |  |
Weighted average life of available for sale securities portfolio | 8 years 7 months 6 days |  | 7 years 7 months 6 days
Allowance for credit loss | $ 0 |  | $ 0
Debt securities, allowance for credit loss, period increase (decrease) | $ 0 | 0 |
Non-Agency RMBS |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Realized loss |  | $ 374,000 |

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- Definition Amount, after allowance for credit loss, of accrued interest on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 50 -Paragraph 3A -URI https://asc.fasb.org/extlink&oid=124269663&loc=SL120267853-210455 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2A -URI https://asc.fasb.org/extlink&oid=126970911&loc=SL121698322-111563 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 50 -Paragraph 3B -URI https://asc.fasb.org/extlink&oid=124269663&loc=SL120267856-210455 + Details
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