Financial Derivatives (Futures) (Details) $ in Thousands |
9 Months Ended |
|---|---|
|
Sep. 30, 2019
USD ($)
| |
| Derivative [Line Items] | |
| Fair Value | $ (12,832) |
| Short | U.S. Treasury futures | |
| Derivative [Line Items] | |
| Notional Amount | (20,900) |
| Fair Value | $ 285 |
| Remaining Years to Maturity | 2 years 274 days |
| Short | Eurodollar futures | |
| Derivative [Line Items] | |
| Notional Amount | $ (21,000) |
| Fair Value | $ (67) |
| Remaining Years to Maturity | 5 years 219 days |
| Short | Currency futures | |
| Derivative [Line Items] | |
| Notional Amount | $ (12,128) |
| Fair Value | $ 199 |
| Remaining Years to Maturity | 2 years 208 days |
| Short | Futures | |
| Derivative [Line Items] | |
| Notional Amount | $ (54,028) |
| Fair Value | $ 417 |
| Remaining Years to Maturity | 3 years 299 days |