Available-for-Sale Securities, at Fair Value Schedule of Realized Gain (Loss) (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2018 |
Sep. 30, 2017 |
Sep. 30, 2018 |
Sep. 30, 2017 |
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| Debt Securities, Available-for-sale [Abstract] | ||||
| Proceeds from sales of available-for-sale securities | $ 5,400,000 | $ 600,000 | $ 9,156,686 | $ 5,726,616 |
| Amortized cost of available-for-sale securities sold | 5,500,000 | 600,000 | 9,300,000 | 5,700,000 |
| Gross realized gains | 6,603 | 408 | 16,357 | 57,133 |
| Gross realized losses | (48,758) | (4,342) | (117,075) | (78,125) |
| Total realized losses on sales, net | $ (42,155) | $ (3,934) | $ (100,718) | $ (20,992) |
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- Definition The total amount of amortized cost of securities, categorized neither as held-to-maturity nor trading securities, sold during the reporting period. No definition available.
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- References No definition available.
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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). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- 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). Reference 1: http://www.xbrl.org/2003/role/recommendedDisclosureRef
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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). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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