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Real Estate Securities - Gross Realized Gains and Losses on Sales and Calls of Available for Sale Securities (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Gross realized gains | $ 1,307 | $ 783 | $ 1,507 | $ 4,635
Total Realized Gains on Sales and Calls of AFS Securities, net | 7,994 | 783 | 10,602 | 4,635
Sales |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Gross realized gains | 1,307 | 1,074 | 1,507 | 8,779
Gross realized losses - sales | 0 | (291) | 0 | (4,144)
Calls |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Gross realized gains | $ 6,687 | $ 0 | $ 9,095 | $ 0

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- Definition Available-for-sale Securities, Gross Realized Gain (Loss) On Sales And Calls + 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 http://asc.fasb.org/extlink&oid=123581744&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 http://asc.fasb.org/extlink&oid=123581744&loc=d3e27357-111563 + Details
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