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Repurchase Agreements - Assets Pledged as Collateral (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Outstanding Borrowings | $ 2,352,102 | $ 1,543,577
Fair Value of Collateral Pledged | 2,839,379 | 1,784,191
Amortized Cost Of Collateral Pledged | 2,643,541 | 1,672,486
Agency RMBS |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Outstanding Borrowings | 812,742 | 925,230
Fair Value of Collateral Pledged | 865,765 | 978,357
Amortized Cost Of Collateral Pledged | 864,428 | 1,014,284
Agency CMBS |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Outstanding Borrowings | 133,184 | 0
Fair Value of Collateral Pledged | 139,317 | 0
Amortized Cost Of Collateral Pledged | 140,118 | 0
Non-Agency RMBS |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Outstanding Borrowings | 594,286 | 88,730
Fair Value of Collateral Pledged | 797,784 | 117,958
Amortized Cost Of Collateral Pledged | 785,952 | 118,414
CMBS |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Outstanding Borrowings | 811,890 | 529,617
Fair Value of Collateral Pledged | 1,036,513 | 687,876
Amortized Cost Of Collateral Pledged | 853,043 | 539,788
Consolidated SLST | Agency RMBS |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Securities owned and pledged as collateral, fair value | 26,200 |
Consolidated SLST | Non-Agency RMBS |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Securities owned and pledged as collateral, fair value | 214,800 |
Consolidated K-Series | Agency CMBS |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Securities owned and pledged as collateral, fair value | 88,400 |
Consolidated K-Series | CMBS |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Securities owned and pledged as collateral, fair value | $ 848,200 | $ 543,000

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- Definition The fair value as of the balance sheet date of financial instruments and other positions owned by the entity and pledged to counterparties as collateral, including: (1) mortgages, mortgage-backed and asset backed securities; (2) US government and agency obligations; (3) state and municipal government obligations; (4) other sovereign government debt; (5) corporate obligations; (6) corporate equities; (7) principal investments; (8) derivative contracts; and (9) physical commodities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=66007379&loc=d3e113888-111728 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 1A -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=109249958&loc=SL6224234-111729 + Details
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- Definition Amount, after the effects of master netting arrangements, of funds outstanding borrowed in the form of a security repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=49176635&loc=d3e9760-107771 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13(1)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(m)(1)(a)(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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