Quarterly report pursuant to Section 13 or 15(d)

DERIVATIVES (Schedule of (Gains) Losses Recorded In Relation to Derivatives) (Details 1)

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DERIVATIVES (Schedule of (Gains) Losses Recorded In Relation to Derivatives) (Details 1) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Derivative [Line Items]        
Deferred hedge gain reclassified from Accumulated Other Comprehensive Income (“AOCI”) into earnings $ 5,131 $ 12,417 $ 10,565 $ 25,951
Realized loss on settlement of TBAs, net 6,915 2,409 4,441 9,945
Not designated as hedging instrument | Realized and unrealized (gain) loss on investments | Interest rate swap        
Derivative [Line Items]        
Unrealized loss on interest rate derivatives 165 19 285 19
Not designated as hedging instrument | Realized and unrealized (gain) loss on investments | Other Contract        
Derivative [Line Items]        
Unrealized (gain) loss recognized related to TBAs (3,781) 1,597 (1,399) 1,938
Realized loss on settlement of TBAs, net 6,915 2,409 4,441 9,945
Reclassification from AOCI into earnings | Net realized (gain) loss on derivatives designated as cash flow hedges        
Derivative [Line Items]        
Deferred hedge gain reclassified from Accumulated Other Comprehensive Income (“AOCI”) into earnings 0 0 0 (20)
Reclassification from AOCI into earnings | Cash flow hedges | Designated as hedging instrument | Net realized (gain) loss on derivatives designated as cash flow hedges | Interest expense        
Derivative [Line Items]        
Deferred hedge gain reclassified from Accumulated Other Comprehensive Income (“AOCI”) into earnings $ 0 $ 0 $ 0 $ (20)