v3.19.1

Securitization Transactions (Schedule of CLO Securitization Transactions) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2019 | Dec. 31, 2018
Securitization Transactions [Line Items] |  |  |  |  |
TBA securities, at fair value |  |  |  | $ 2,939,311 |
CLO I Securitization [Member] |  |  |  |  |
Securitization Transactions [Line Items] |  |  |  |  |
CLO Pricing Date | [1],[2] | 2018-08 |  | 2017-05 |
CLO Closing Date | [1],[2] | 2018-08 |  | 2017-06 |
Total Face Amount of Notes Issued | [2] | $ 461,840 |  | $ 373,550 | [1]
Face Amount of Notes Initially Purchased | [2],[3] | 36,579 |  | 36,606 | [1]
Aggregate Purchase Price of Notes Initially Purchased | [2] | $ 25,622 |  | $ 35,926 | [1]
Reset CLO I Securitization [Member] |  |  |  |  |
Securitization Transactions [Line Items] |  |  |  |  |
CLO Pricing Date | [2] |  |  | 2018-08 |
CLO Closing Date | [2] |  |  | 2018-08 |
Total Face Amount of Notes Issued | [2] |  |  | $ 461,840 |
Face Amount of Notes Initially Purchased | [2],[3] |  |  | 36,579 |
Aggregate Purchase Price of Notes Initially Purchased | [2] |  |  | $ 25,622 |
CLO II Securitization [Member] |  |  |  |  |
Securitization Transactions [Line Items] |  |  |  |  |
CLO Pricing Date |  | 2017-12 |  | 2017-12 |
CLO Closing Date |  | 2018-01 |  | 2018-01 |
Total Face Amount of Notes Issued |  | $ 452,800 |  | $ 452,800 |
Face Amount of Notes Initially Purchased | [4] | 18,223 |  | 18,223 |
Aggregate Purchase Price of Notes Initially Purchased |  | $ 16,621 |  | $ 16,621 |
CLO III Securitization [Member] |  |  |  |  |
Securitization Transactions [Line Items] |  |  |  |  |
CLO Pricing Date |  | 2018-06 |  | 2018-06 |
CLO Closing Date |  | 2018-07 |  | 2018-07 |
Total Face Amount of Notes Issued |  | $ 407,100 |  | $ 407,100 |
Face Amount of Notes Initially Purchased | [4] | 35,480 |  | 35,480 |
Aggregate Purchase Price of Notes Initially Purchased |  | $ 32,394 |  | 32,394 |
CLO IV Securitization [Member] |  |  |  |  |
Securitization Transactions [Line Items] |  |  |  |  |
CLO Pricing Date |  | 2019-02 |  |  |
CLO Closing Date |  | 2019-03 |  |  |
Total Face Amount of Notes Issued |  | $ 478,488 |  |  |
Face Amount of Notes Initially Purchased | [4] | 12,700 |  |  |
Aggregate Purchase Price of Notes Initially Purchased |  | 10,618 |  |  |
CLOs |  |  |  |  |
Securitization Transactions [Line Items] |  |  |  |  |
TBA securities, at fair value |  |  |  | 123,893 |
CLOs | CLO I Securitization [Member] |  |  |  |  |
Securitization Transactions [Line Items] |  |  |  |  |
TBA securities, at fair value | [2],[5] | 17,742 | [6] | 0 | [1]
CLOs | Reset CLO I Securitization [Member] |  |  |  |  |
Securitization Transactions [Line Items] |  |  |  |  |
TBA securities, at fair value | [2],[5],[6] |  |  | 16,973 |
CLOs | CLO II Securitization [Member] |  |  |  |  |
Securitization Transactions [Line Items] |  |  |  |  |
TBA securities, at fair value | [5],[6] | 14,931 |  | 14,721 |
CLOs | CLO III Securitization [Member] |  |  |  |  |
Securitization Transactions [Line Items] |  |  |  |  |
TBA securities, at fair value | [5],[7] | 19,561 |  | $ 19,071 |
CLOs | CLO IV Securitization [Member] |  |  |  |  |
Securitization Transactions [Line Items] |  |  |  |  |
TBA securities, at fair value | [5],[7] | $ 10,496 |  |  |
[1] | Excludes the Company's equity investment in the CLO I Risk Retention Vehicle, as discussed above.
[2] | In August 2018, the notes originally issued by the CLO I Issuer in 2017 were fully redeemed, and the CLO I Issuer simultaneously issued new notes in conjunction with this full redemption.
[3] | The Company purchased secured and unsecured subordinated notes.
[4] | The Company purchased secured senior and secured and unsecured subordinated notes.
[5] | Included on the Company's Consolidated Condensed Schedule of Investments in Collateralized Loan Obligations.
[6] | Includes secured and unsecured subordinated notes.
[7] | Includes secured senior and secured and unsecured subordinated notes.

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