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Derivatives (Notes) | 12 Months Ended
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Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Derivatives | DERIVATIVES The Company is a party to certain types of financial instruments that are accounted for as derivative instruments. Please refer to Note 1 for information related to the Company’s accounting policy for its derivative instruments. Types and Uses of Derivatives Instruments Interest Rate Derivatives Changing interest rates impact the fair value of the Company’s investments as well as the interest rates on the Company’s repurchase agreement borrowings used to finance its investments. The Company primarily uses interest rate swaps and Eurodollar futures as economic hedges to mitigate declines in book value and to protect some portion of the Company's earnings from rising interest rates. TBA Transactions The Company also holds long positions in TBA securities by executing a series of transactions which effectively delay the settlement of a forward purchase of a non-specified Agency RMBS by entering into an offsetting TBA short position, net settling the paired-off positions in cash, and simultaneously entering into an identical TBA long position with a later settlement date. These long positions in TBA securities (“dollar roll positions”) are viewed by management as economically equivalent to investing in and financing non-specified fixed-rate Agency RMBS. TBA securities purchased for a forward settlement month are generally priced at a discount relative to TBA securities sold for settlement in the current month. This discount, often referred to as “drop income” represents the economic equivalent of net interest income (interest income less implied financing cost) on the underlying Agency security from trade date to settlement date. Periodically, the Company may also hold short positions in TBA securities for the purpose of economically hedging a portion of the impact of changing interest rates on the fair value of the Company’s fixed-rate Agency RMBS. The table below summarizes information about the fair value by type of derivative instrument on the Company’s consolidated balance sheets as of the dates indicated:
|  |  |  |  |  | December 31, 2017 |  | December 31, 2016
Type of Derivative Instrument |  | Balance Sheet Location |  | Purpose |  | Fair Value |  | Fair Value (1)
Interest rate swaps |  | Derivative assets |  | Economic hedging |  | $ | 791 |  |  | $ | 28,534 |
Eurodollar futures(2) |  | Derivative assets |  | Economic hedging |  | 666 |  |  | — |
TBA securities |  | Derivative assets |  | Investing |  | 1,483 |  |  | — |
|  |  |  |  |  | $ | 2,940 |  |  | $ | 28,534 |
Interest rate swaps |  | Derivative liabilities |  | Economic hedging |  | $ | — |  |  | $ | (6,922 | )
TBA securities |  | Derivative liabilities |  | Economic hedging |  | (269 | ) |  | — |
|  |  |  |  |  | $ | (269 | ) |  | $ | (6,922 | )
(1) | Refer to Note 1 regarding information on a change in the CME rulebook. Amounts reported on the consolidated balance sheet as of December 31, 2017 for its interest rate swaps reflect the netting of the derivative asset or liability with the related collateral received or posted, respectively. The net amounts comparable to December 31, 2017 for the derivative asset and derivative liabilities as of December 31, 2016 were $104 and $(576), respectively.
(2) | The Eurodollar futures aggregate notional amount represents the total notional of the 3-month contracts with expiration dates from 2017 to 2018. The maximum notional outstanding for any future 3-month period did not exceed $650,000 as of December 31, 2017.
The following tables present information about the Company’s interest rate swaps as of the dates indicated:
|  | December 31, 2017
|  |  |  | Weighted-Average: |  |
Years to Maturity: |  | Net Notional Amount (1) |  | Pay Rate (2) |  | Life Remaining (in Years) |  | Fair Value
< 3 years |  | $ | 3,320,000 |  |  | 1.35 | % |  | 0.7 |  | $ | 791 |
>3 and < 6 years |  | 1,210,000 |  |  | 2.00 | % |  | 4.6 |  | — |
>6 and < 10 years |  | 1,025,000 |  |  | 2.49 | % |  | 8.0 |  | — |
>10 years |  | 120,000 |  |  | 2.75 | % |  | 17.3 |  | — |
Total |  | $ | 5,675,000 |  |  | 1.71 | % |  | 3.1 |  | $ | 791 |
|  | December 31, 2016
|  |  |  | Weighted-Average: |  |
Years to Maturity: |  | Net Notional Amount (1) |  | Pay Rate (2) |  | Life Remaining (in Years) |  | Fair Value
< 3 years |  | $ | 595,000 |  |  | 0.73 | % |  | 2.3 |  | $ | 4,348 |
>3 and < 6 years |  | 1,185,000 |  |  | 1.47 | % |  | 4.3 |  | 8,631 |
>6 and < 10 years |  | 1,250,000 |  |  | 2.42 | % |  | 8.9 |  | 8,633 |
Total |  | $ | 3,030,000 |  |  | 1.58 | % |  | 5.3 |  | $ | 21,612 |
(1) | The net notional amounts included in the tables above represent pay-fixed interest rate swaps, net of receive-fixed interest rate swaps and include $2,525,000 and $2,725,000 of pay-fixed forward starting interest rate swaps as of December 31, 2017 and December 31, 2016, respectively.
(2) Excluding forward starting pay-fixed interest rate swaps, the weighted average pay rate was 1.36% and 0.73% as of December 31, 2017 and December 31, 2016, respectively. The following table summarizes information about the Company's TBA securities as of December 31, 2017:
|  | December 31, 2017
|  | Notional Amount (1) |  | Implied Cost Basis (2) |  | Implied Market Value (3) |  | Net Carrying Value (4)
Dollar roll positions: |  |  |  |  |  |  |  |
30-year 4.0% TBA securities |  | $ | 795,000 |  |  | $ | 829,425 |  |  | $ | 830,908 |  |  | $ | 1,483 |
Economic hedges: |  |  |  |  |  |  |  |
30-year 3.5% TBA securities |  | $ | 150,000 |  |  | $ | (153,797 | ) |  | $ | (154,066 | ) |  | $ | (269 | )
(1) | Notional amount represents the par value (or principal balance) of the underlying Agency MBS as if settled as of the end of the period.
(2) | Implied cost basis represents the forward price to be paid for the underlying Agency MBS as if settled as of end of the period.
(3) | Implied market value represents the estimated fair value of the underlying Agency MBS as if settled as of the end of the period.
(4) | Net carrying value represents the difference between the implied market value and the implied cost basis of the TBA security as of the end of the period and is included on the consolidated balance sheets within “derivative assets (liabilities)”.
The tables below summarize changes in the Company’s derivative instruments for the periods indicated:
Type of Derivative Instrument |  | Notional Amount as of December 31, 2016 |  | Additions |  | Settlements, Terminations, or Pair-Offs |  | Notional Amount as of December 31, 2017
Receive-fixed interest rate swaps |  | $ | 425,000 |  |  | $ | — |  |  | $ | (325,000 | ) |  | $ | 100,000 |
Pay-fixed interest rate swaps |  | 3,455,000 |  |  | 3,890,000 |  |  | (1,570,000 | ) |  | 5,775,000 |
Eurodollar futures |  | — |  |  | 2,600,000 |  |  | (650,000 | ) |  | 1,950,000 |
TBA dollar roll positions |  | — |  |  | 6,729,000 |  |  | (5,934,000 | ) |  | 795,000 |
TBA economic hedges |  | — |  |  | (250,000 | ) |  | 100,000 |  |  | (150,000 | )
The table below provides detail of the Company’s “gain (loss) on derivative instruments, net” by type of derivative for the periods indicated:
|  | Year Ended
|  | December 31,
Type of Derivative Instrument |  | 2017 |  | 2016 |  | 2015
Receive-fixed interest rate swaps |  | $ | 23 |  |  | $ | 2,515 |  |  | $ | 6,522 |
Pay-fixed interest rate swaps |  | (2,655 | ) |  | (3,306 | ) |  | (28,687 | )
Eurodollar futures |  | 821 |  |  | (4,815 | ) |  | (20,963 | )
TBA dollar roll positions |  | 5,757 |  |  | — |  |  | — |
TBA economic hedges |  | (902 | ) |  | — |  |  | — |
Gain (loss) on derivative instruments, net |  | $ | 3,044 |  |  | $ | (5,606 | ) |  | $ | (43,128 | )
There is a net unrealized gain of $402 remaining in AOCI on the Company’s consolidated balance sheet as of December 31, 2017 which represents the activity related to interest rate swap agreements while they were previously designated as cash flow hedges, and this amount will be recognized in the Company’s net income as an adjustment to “interest expense” over the remaining contractual life of the agreements. The Company estimates a credit of $237 will be reclassified to net income as a reduction of “interest expense” within the next 12 months. A portion of the Company’s interest rate swaps were entered into under bilateral agreements which contain cross-default provisions with other agreements between the parties. In addition, these bilateral agreements contain financial and operational covenants similar to those contained in the repurchase agreements as described in Note 3. The Company was in compliance with all covenants with respect to bilateral agreements under which interest rate swaps were entered into as of December 31, 2017. The Company's derivatives are subject to underlying agreements with master netting or similar arrangements, which provide for the right of offset in the event of default or in the event of bankruptcy of either party to the transactions. The Company reports its derivative assets and liabilities subject to these arrangements on a gross basis. The following tables present information regarding those derivative assets and liabilities subject to such arrangements as if the Company had presented them on a net basis as of December 31, 2017 and December 31, 2016:
| Offsetting of Assets
| Gross Amount of Recognized Assets |  | Gross Amount Offset in the Balance Sheet |  | Net Amount of Assets Presented in the Balance Sheet |  | Gross Amount Not Offset in the Balance Sheet (1) |  | Net Amount
Financial Instruments Received as Collateral |  | Cash Received as Collateral
December 31, 2017 |  |  |  |  |  |  |  |  |  |  |
Interest rate swaps | $ | 791 |  |  | $ | — |  |  | $ | 791 |  |  | $ | — |  |  | $ | — |  |  | $ | 791 |
Eurodollar Futures | 666 |  |  | — |  |  | 666 |  |  | — |  |  | (666 | ) |  | — |
TBA securities | 1,483 |  |  | — |  |  | 1,483 |  |  | (180 | ) |  | — |  |  | 1,303 |
Derivative assets | $ | 2,940 |  |  | $ | — |  |  | $ | 2,940 |  |  | $ | (180 | ) |  | $ | (666 | ) |  | $ | 2,094 |
December 31, 2016: |  |  |  |  |  |  |  |  |  |  |
Interest rate swaps | $ | 28,534 |  |  | $ | — |  |  | $ | 28,534 |  |  | $ | (6,449 | ) |  | $ | (22,085 | ) |  | $ | — |
TBA securities | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Derivative assets | $ | 28,534 |  |  | $ | — |  |  | $ | 28,534 |  |  | $ | (6,449 | ) |  | $ | (22,085 | ) |  | $ | — |
| Offsetting of Liabilities
| Gross Amount of Recognized Liabilities |  | Gross Amount Offset in the Balance Sheet |  | Net Amount of Liabilities Presented in the Balance Sheet |  | Gross Amount Not Offset in the Balance Sheet (1) |  | Net Amount
Financial Instruments Posted as Collateral |  | Cash Posted as Collateral
December 31, 2017 |  |  |  |  |  |  |  |  |  |  |
Interest rate swaps | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
TBA securities | 269 |  |  | — |  |  | 269 |  |  | (180 | ) |  | — |  |  | 89 |
Derivative liabilities | $ | 269 |  |  | $ | — |  |  | $ | 269 |  |  | $ | (180 | ) |  | $ | — |  |  | $ | 89 |
December 31, 2016: |  |  |  |  |  |  |  |  |  |  |
Interest rate swaps | $ | 6,922 |  |  | $ | — |  |  | $ | 6,922 |  |  | $ | (6,913 | ) |  | $ | — |  |  | $ | 9 |
TBA securities | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Derivative liabilities | $ | 6,922 |  |  | $ | — |  |  | $ | 6,922 |  |  | $ | (6,913 | ) |  | $ | — |  |  | $ | 9 |
(1) | Amounts disclosed for collateral received by or posted to the same counterparty include cash and the fair value of MBS up to and not exceeding the net amount of the asset or liability presented in the balance sheet. The fair value of the total collateral received by or posted to the same counterparty may exceed the amounts presented.
Please see Note 3 for information related to the Company’s repurchase agreements which are also subject to underlying agreements with master netting or similar arrangements.

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- Definition The entire disclosure for derivative instruments and hedging activities including, but not limited to, risk management strategies, non-hedging derivative instruments, assets, liabilities, revenue and expenses, and methodologies and assumptions used in determining the amounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -URI http://asc.fasb.org/topic&trid=2229140 + Details
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