Derivative Instruments (Tables)
 12 Months Ended
Dec. 31, 2015
Derivative Instruments [Abstract]  
Schedule of Derivative Instruments [Table Text Block]
The following table details the fair value of the Company's holdings of financial derivatives as of December 31, 2015 and 2014:
 
 
December 31, 2015
 
December 31, 2014
 
 
(In thousands)
Financial derivatives–assets, at fair value:
 
 
 
 
TBA securities purchase contracts
 
$
115

 
$
387

TBA securities sale contracts
 
302

 
89

Fixed payer interest rate swaps
 
891

 
2,518

Fixed receiver interest rate swaps
 
857

 
—

Swaptions
 
—

 
78

Futures
 
18

 
—

Total financial derivatives–assets, at fair value:
 
2,183

 
3,072

Financial derivatives–liabilities, at fair value:
 
 
 
 
TBA securities purchase contracts
 
(49
)
 
(5
)
TBA securities sale contracts
 
(315
)
 
(1,669
)
Fixed payer interest rate swaps
 
(4,361
)
 
(7,026
)
Total financial derivatives–liabilities, at fair value:
 
(4,725
)
 
(8,700
)
Total
 
$
(2,542
)
 
$
(5,628
)
Interest Rate Swaps By Remaining Maturity [Table Text Block]
The following tables provide information about the Company's fixed payer interest rate swaps as of December 31, 2015 and 2014:
December 31, 2015:
 
 
 
 
 
 
Weighted Average
Remaining Maturity
 
Notional Amount
 
Fair Value
 
Pay Rate
 
Receive Rate
 
Remaining Years to Maturity
 
 
(In thousands)
 
 
 
 
 
 
2016
 
$
48,000

 
$
(83
)
 
0.80
%
 
0.39
%
 
0.77
2017
 
74,750

 
(445
)
 
1.21

 
0.41

 
1.59
2018
 
71,529

 
80

 
1.11

 
0.34

 
2.28
2020
 
119,893

 
220

 
1.51

 
0.33

 
4.36
2022
 
19,444

 
86

 
1.76

 
0.34

 
6.51
2023
 
131,400

 
(1,367
)
 
2.10

 
0.38

 
7.39
2024
 
9,200

 
11

 
1.99

 
0.32

 
8.26
2025
 
58,560

 
(5
)
 
2.06

 
0.33

 
9.32
2043
 
21,067

 
(1,967
)
 
3.03

 
0.36

 
27.39
Total
 
$
553,843

 
$
(3,470
)
 
1.63
%
 
0.36
%
 
5.67

December 31, 2014:
 
 
 
 
 
 
Weighted Average
Remaining Maturity
 
Notional Amount
 
Fair Value
 
Pay Rate
 
Receive Rate
 
Remaining Years to Maturity
 
 
(In thousands)
 
 
 
 
 
 
2016
 
$
48,000

 
$
(91
)
 
0.80
%
 
0.23
%
 
1.77
2017
 
74,750

 
(388
)
 
1.21

 
0.24

 
2.59
2018
 
10,000

 
167

 
0.84

 
0.23

 
3.33
2020
 
23,500

 
471

 
1.42

 
0.23

 
5.38
2023
 
209,350

 
140

 
2.13

 
0.23

 
8.40
2024
 
12,900

 
(605
)
 
2.73

 
0.23

 
9.45
2043
 
46,320

 
(4,202
)
 
3.12

 
0.23

 
28.42
Total
 
$
424,820

 
$
(4,508
)
 
1.87
%
 
0.23
%
 
8.56

The following tables provide information about the Company's fixed receiver interest rate swaps as of December 31, 2015. There were no fixed receiver interest rate swaps held as of December 31, 2014:
December 31, 2015:
 
 
 
 
 
 
Weighted Average
Remaining Maturity
 
Notional Amount
 
Fair Value
 
Pay Rate
 
Receive Rate
 
Remaining Years to Maturity
 
 
(In thousands)
 
 
 
 
 
 
2025
 
$
9,700

 
$
857

 
0.32
%
 
3.00
%
 
9.55
Total
 
$
9,700

 
$
857

 
0.32
%
 
3.00
%
 
9.55
Swaptions [Table Text Block]
The following table provides information about the Company's swaptions as of December 31, 2014. The Company had no swaptions as of December 31, 2015.
December 31, 2014:
Option
 
Underlying Swap
Type
 
Fair Value
 
Months to Expiration
 
Notional
Amount
 
Term (Years)
 
Fixed Rate
($ in thousands)
 
 
 
 
 
 
 
 
 
 
Straddle
 
$
78

 
6.5
 
$
9,700

 
10
 
3.00%
Futures [Table Text Block]
The following table provides information about the Company's Eurodollar futures as of December 31, 2015. The Company had no futures outstanding as of December 31, 2014.
December 31, 2015:
Remaining Maturity
 
Notional Amount
 
Fair Value
 
Remaining Months to Expiration
($ in thousands)
 
 
 
 
 
 
2016
 
$
(12,000
)
 
$
10

 
7.13
2017
 
(9,000
)
 
8

 
17.79
Total
 
$
(21,000
)
 
$
18

 
11.70
Schedule of To-be-announced securities (TBAs) [Table Text Block]
As of December 31, 2015 and 2014, the Company had outstanding contracts to purchase ("long positions") and sell ("short positions") TBA securities as follows:
 
 
December 31, 2015
 
December 31, 2014
TBA Securities
 
Notional Amount(1)
 
Cost
Basis(2)
 
Market Value(3)
 
Net Carrying Value(4)
 
Notional Amount (1)
 
Cost
Basis(2)
 
Market Value(3)
 
Net Carrying Value(4)
(In thousands)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Purchase contracts:
 
 
 
 
 

 
 
 
 
 
 
 
 
 
 
Assets
 
$
60,291

 
$
61,638

 
$
61,753

 
$
115

 
$
53,319

 
$
54,757

 
$
55,144

 
$
387

Liabilities
 
23,418

 
24,208

 
24,159

 
(49
)
 
15,000

 
15,603

 
15,598

 
(5
)
 
 
83,709


85,846


85,912


66


68,319


70,360


70,742


382

Sale contracts:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Assets
 
(170,800
)
 
(181,476
)
 
(181,174
)
 
302

 
(79,090
)
 
(85,730
)
 
(85,641
)
 
89

Liabilities
 
(252,746
)
 
(268,973
)
 
(269,288
)
 
(315
)
 
(525,986
)
 
(559,219
)
 
(560,888
)
 
(1,669
)
 
 
(423,546
)

(450,449
)

(450,462
)

(13
)

(605,076
)

(644,949
)

(646,529
)

(1,580
)
Total TBA securities, net
 
$
(339,837
)
 
$
(364,603
)
 
$
(364,550
)
 
$
53

 
$
(536,757
)
 
$
(574,589
)
 
$
(575,787
)
 
$
(1,198
)
(1)
Notional amount represents the principal balance of the underlying Agency RMBS.
(2)
Cost basis represents the forward price to be paid for the underlying Agency RMBS.
(3)
Market value represents the current market value of the underlying Agency RMBS (on a forward delivery basis) as of period end.
(4)
Net carrying value represents the difference between the market value of the TBA contract as of period end and the cost basis and is reported in Financial derivatives-assets at fair value and Financial derivatives-liabilities at fair value on the Consolidated Balance Sheet.
Derivative Activity, Volume [Table Text Block]
The tables below details the average notional values of the Company's financial derivatives, using absolute value of month end notional values, for the years ended December 31, 2015 and 2014:
Derivative Type
 
Year Ended
December 31, 2015
 
Year Ended
December 31, 2014
 
 
(In thousands)
Interest rate swaps
 
$
525,037

 
$
566,379

TBAs
 
606,665

 
545,646

Interest rate swaptions
 
5,223

 
20,631

Futures
 
5,308

 
—
Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Table Text Block]
Gains and losses on the Company's financial derivatives for the years ended December 31, 2015, 2014, and 2013 are summarized in the tables below:
 
 
Year Ended December 31, 2015
Derivative Type
 
Net Realized Gains (Losses) on Periodic Settlements of Interest Rate Swaps
 
Net Realized Gains (Losses) Other Than Periodic Settlements of Interest Rate Swaps
 
Net Realized Gains (Losses) on Financial Derivatives
 
Change in Net Unrealized Gains (Losses) on Accrued Periodic Settlements of Interest Rate Swaps
 
Change in Net Unrealized Gains (Losses) Other Than on Accrued Periodic Settlements of Interest Rate Swaps
 
Change in Net Unrealized Gains (Losses) on Financial Derivatives
(In thousands)
 
 
 
 
 
 
 
 
 
 
 
 
Interest rate swaps
 
$
(7,027
)
 
$
(8,850
)
 
$
(15,877
)
 
$
(350
)
 
$
2,578

 
$
2,228

Swaptions
 
 
 
(500
)
 
(500
)
 
 
 
(78
)
 
(78
)
TBAs
 
 
 
(7,041
)
 
(7,041
)
 
 
 
1,251

 
1,251

Futures
 
 
 
(14
)
 
(14
)
 
 
 
18

 
18

Total
 
$
(7,027
)
 
$
(16,405
)
 
$
(23,432
)
 
$
(350
)
 
$
3,769

 
$
3,419


 
 
Year Ended December 31, 2014
Derivative Type
 
Net Realized Gains (Losses) on Periodic Settlements of Interest Rate Swaps
 
Net Realized Gains (Losses) Other Than Periodic Settlements of Interest Rate Swaps
 
Net Realized Gains (Losses) on Financial Derivatives
 
Change in Net Unrealized Gains (Losses) on Accrued Periodic Settlements of Interest Rate Swaps
 
Change in Net Unrealized Gains (Losses) Other Than on Accrued Periodic Settlements of Interest Rate Swaps
 
Change in Net Unrealized Gains (Losses) on Financial Derivatives
(In thousands)
 
 
 
 
 
 
 
 
 
 
 
 
Interest rate swaps
 
$
(9,217
)
 
$
1,823

 
$
(7,394
)
 
$
410

 
$
(36,662
)
 
$
(36,252
)
Swaptions
 
 
 
(935
)
 
(935
)
 
 
 
163

 
163

TBAs
 
 
 
(23,568
)
 
(23,568
)
 
 
 
(3,433
)
 
(3,433
)
Futures
 
 
 
19

 
19

 
 
 
—

 
—

Total
 
$
(9,217
)
 
$
(22,661
)
 
$
(31,878
)
 
$
410

 
$
(39,932
)
 
$
(39,522
)

 
 
Year Ended December 31, 2013
Derivative Type
 
Net Realized Gains (Losses) on Periodic Settlements of Interest Rate Swaps
 
Net Realized Gains (Losses) Other Than Periodic Settlements of Interest Rate Swaps
 
Net Realized Gains (Losses) on Financial Derivatives
 
Change in Net Unrealized Gains (Losses) on Accrued Periodic Settlements of Interest Rate Swaps
 
Change in Net Unrealized Gains (Losses) Other Than on Accrued Periodic Settlements of Interest Rate Swaps
 
Change in Net Unrealized Gains (Losses) on Financial Derivatives
(In thousands)
 
 
 
 
 
 
 
 
 
 
 
 
Interest rate swaps
 
$
(5,200
)
 
$
5,060

 
$
(140
)
 
$
(1,538
)
 
$
33,282

 
$
31,744

Swaptions
 
 
 
—

 
—

 
 
 
(85
)
 
(85
)
TBAs
 
 
 
7,450

 
7,450

 
 
 
2,235

 
2,235

Total
 
$
(5,200
)
 
$
12,510

 
$
7,310

 
$
(1,538
)
 
$
35,432

 
$
33,894