v3.19.1

Financial Derivatives (Schedule of Gains and Losses on Derivative Contracts) (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018
Derivative [Line Items] |  |
Net Realized Gains (Losses) on Periodic Settlements of Interest Rate Swaps | $ 719 |
Net Realized Gains (Losses) Other Than Periodic Settlements of Interest Rate Swaps | (12,264) |
Net Realized Gains (Losses) on Financial Derivatives | (11,545) | $ (1,503)
Unrealized gains (losses) on financial derivatives, net | (5,689) | 4,044
Change in Net Unrealized Gains (Losses) on Accrued Periodic Settlements of Interest Rate Swaps | (275) |
Change in Net Unrealized Gains (Losses) Other Than on Accrued Periodic Settlements of Interest Rate Swaps | (5,393) |
Unrealized gains (losses) on financial derivatives, net | (5,668) |
Foreign currency transactions | 25 | 1,769
Foreign currency translation | 21 | 101
Derivative [Member] |  |
Derivative [Line Items] |  |
Foreign currency transactions |  | (200)
Foreign currency translation |  | 47
Interest rate swaps | Interest Rate Risk [Member] |  |
Derivative [Line Items] |  |
Net Realized Gains (Losses) on Periodic Settlements of Interest Rate Swaps | 719 |
Net Realized Gains (Losses) Other Than Periodic Settlements of Interest Rate Swaps | 1,458 |
Net Realized Gains (Losses) on Financial Derivatives | 2,177 | (824)
Unrealized gains (losses) on financial derivatives, net |  | 5,039
Change in Net Unrealized Gains (Losses) on Accrued Periodic Settlements of Interest Rate Swaps | (275) |
Change in Net Unrealized Gains (Losses) Other Than on Accrued Periodic Settlements of Interest Rate Swaps | (5,774) |
Unrealized gains (losses) on financial derivatives, net | (6,049) |
Credit default swaps on asset-backed securities | Credit Risk [Member] |  |
Derivative [Line Items] |  |
Net Realized Gains (Losses) Other Than Periodic Settlements of Interest Rate Swaps | 275 |
Net Realized Gains (Losses) on Financial Derivatives | 275 | 86
Unrealized gains (losses) on financial derivatives, net |  | (71)
Change in Net Unrealized Gains (Losses) Other Than on Accrued Periodic Settlements of Interest Rate Swaps | (239) |
Unrealized gains (losses) on financial derivatives, net | (239) |
Credit default swaps on corporate bond indices | Credit Risk [Member] |  |
Derivative [Line Items] |  |
Net Realized Gains (Losses) Other Than Periodic Settlements of Interest Rate Swaps | (746) |
Net Realized Gains (Losses) on Financial Derivatives | (746) | (1,562)
Unrealized gains (losses) on financial derivatives, net |  | 1,563
Change in Net Unrealized Gains (Losses) Other Than on Accrued Periodic Settlements of Interest Rate Swaps | (548) |
Unrealized gains (losses) on financial derivatives, net | (548) |
Credit default swaps on asset-backed indices | Credit Risk [Member] |  |
Derivative [Line Items] |  |
Net Realized Gains (Losses) Other Than Periodic Settlements of Interest Rate Swaps | (2,513) |
Net Realized Gains (Losses) on Financial Derivatives | (2,513) | (1,842)
Unrealized gains (losses) on financial derivatives, net |  | 1,452
Change in Net Unrealized Gains (Losses) Other Than on Accrued Periodic Settlements of Interest Rate Swaps | (2,407) |
Unrealized gains (losses) on financial derivatives, net | (2,407) |
Credit default swaps on corporate bonds | Credit Risk [Member] |  |
Derivative [Line Items] |  |
Net Realized Gains (Losses) Other Than Periodic Settlements of Interest Rate Swaps | (425) |
Net Realized Gains (Losses) on Financial Derivatives | (425) | 4,469
Unrealized gains (losses) on financial derivatives, net |  | (3,855)
Change in Net Unrealized Gains (Losses) Other Than on Accrued Periodic Settlements of Interest Rate Swaps | 766 |
Unrealized gains (losses) on financial derivatives, net | 766 |
Total return swaps | Equity Market/Credit Risk [Member] |  |
Derivative [Line Items] |  |
Net Realized Gains (Losses) Other Than Periodic Settlements of Interest Rate Swaps | (1,298) |
Net Realized Gains (Losses) on Financial Derivatives | (1,298) | 166
Unrealized gains (losses) on financial derivatives, net |  | 17
Change in Net Unrealized Gains (Losses) Other Than on Accrued Periodic Settlements of Interest Rate Swaps | 129 |
Unrealized gains (losses) on financial derivatives, net | 129 |
TBAs | Interest Rate Risk [Member] |  |
Derivative [Line Items] |  |
Net Realized Gains (Losses) Other Than Periodic Settlements of Interest Rate Swaps | (6,435) |
Net Realized Gains (Losses) on Financial Derivatives | (6,435) |
Change in Net Unrealized Gains (Losses) Other Than on Accrued Periodic Settlements of Interest Rate Swaps | 1,898 |
Unrealized gains (losses) on financial derivatives, net | 1,898 |
Futures | Interest Rate/Currency Risk [Member] |  |
Derivative [Line Items] |  |
Net Realized Gains (Losses) Other Than Periodic Settlements of Interest Rate Swaps | (2,433) |
Net Realized Gains (Losses) on Financial Derivatives | (2,433) | (761)
Unrealized gains (losses) on financial derivatives, net |  | (561)
Change in Net Unrealized Gains (Losses) Other Than on Accrued Periodic Settlements of Interest Rate Swaps | 359 |
Unrealized gains (losses) on financial derivatives, net | 359 |
Forwards | Currency risk [Member] |  |
Derivative [Line Items] |  |
Net Realized Gains (Losses) Other Than Periodic Settlements of Interest Rate Swaps | (114) |
Net Realized Gains (Losses) on Financial Derivatives | (114) | (1,174)
Unrealized gains (losses) on financial derivatives, net |  | 384
Change in Net Unrealized Gains (Losses) Other Than on Accrued Periodic Settlements of Interest Rate Swaps | 423 |
Unrealized gains (losses) on financial derivatives, net | 423 |
Options | Interest Rate Risk [Member] |  |
Derivative [Line Items] |  |
Net Realized Gains (Losses) Other Than Periodic Settlements of Interest Rate Swaps | (33) |
Net Realized Gains (Losses) on Financial Derivatives | (33) |
Change in Net Unrealized Gains (Losses) Other Than on Accrued Periodic Settlements of Interest Rate Swaps | 0 |
Unrealized gains (losses) on financial derivatives, net | $ 0 |
Options | Interest Rates/Equity Market Risk [Member] |  |
Derivative [Line Items] |  |
Net Realized Gains (Losses) on Financial Derivatives |  | (61)
Unrealized gains (losses) on financial derivatives, net |  | $ 76

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