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Investment Securities Available for Sale, at Fair Value - Proceeds from Sale (Details) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Sales Proceeds | $ 0 | $ 3,770,000 | $ 24,374,000 | $ 115,398,000
Realized Gains |  | 392,000 | 374,000 | 5,599,000
Realized Losses |  | 0 | 0 | (833,000)
Net Realized Gains (Losses) |  | 392,000 | 374,000 | 4,766,000
CMBS |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Sales Proceeds |  | 3,770,000 |  | 43,315,000
Realized Gains |  | 392,000 |  | 5,587,000
Realized Losses |  | 0 |  | 0
Net Realized Gains (Losses) |  | $ 392,000 |  | 5,587,000
Non-Agency RMBS |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Sales Proceeds |  |  | 24,374,000 | 72,083,000
Realized Gains |  |  | 374,000 | 12,000
Realized Losses |  |  | 0 | (833,000)
Net Realized Gains (Losses) |  |  | $ 374,000 | $ (821,000)

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- Definition Proceeds Including Receivable For Unsettled Trades From Sale of Debt Securities, Available-for-sale + References No definition available. + Details
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- Definition Amount of realized gain 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 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27357-111563 + Details
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- Definition Amount of realized gain (loss) 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/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27357-111563 + Details
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- Definition Amount of realized loss 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 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27357-111563 + Details
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- Details
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