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Derivative Instruments Schedule of Derivatves (Details) - USD ($)
$ in Thousands

Sep. 30, 2018

Dec. 31, 2017

Derivative [Line Items]

Financial derivatives–assets, at fair value

^[1]

$ 23,049

$ 8,792

Financial derivatives–liabilities, at fair value

^[1]

(333)

(1,863)

Derivative, Fair Value, Net

22,716

6,929

TBA securities- purchase contracts [Member]

Derivative [Line Items]

Derivative, Fair Value, Net

^[2]

(262)

(240)

TBA securities- sale contracts [Member]

Derivative [Line Items]

Derivative, Fair Value, Net

^[2]

1,389

(93)

Derivative Financial Instruments, Assets [Member] | TBA securities- purchase contracts [Member]

Derivative [Line Items]

Financial derivatives–assets, at fair value

^[2]

33

26

Derivative Financial Instruments, Assets [Member] | TBA securities- sale contracts [Member]

Derivative [Line Items]

Financial derivatives–assets, at fair value

^[2]

1,414

376

Derivative Financial Instruments, Assets [Member] | Futures [Member]

Derivative [Line Items]

Financial derivatives–assets, at fair value

3,413

171

Derivative Financial Instruments, Liabilities [Member] | TBA securities- purchase contracts [Member]

Derivative [Line Items]

Financial derivatives–liabilities, at fair value

^[2]

(295)

(266)

Derivative Financial Instruments, Liabilities [Member] | TBA securities- sale contracts [Member]

Derivative [Line Items]

Financial derivatives–liabilities, at fair value

^[2]

(25)

(469)

Short [Member] | Interest Rate Swap [Member]

Derivative [Line Items]

Derivative, Fair Value, Net

18,176

6,347

Short [Member] | Derivative Financial Instruments, Assets [Member] | Interest Rate Swap [Member]

Derivative [Line Items]

Financial derivatives–assets, at fair value

18,189

7,475

Short [Member] | Derivative Financial Instruments, Liabilities [Member] | Interest Rate Swap [Member]

Derivative [Line Items]

Financial derivatives–liabilities, at fair value

(13)

(1,128)

Long [Member] | Interest Rate Swap [Member]

Derivative [Line Items]

Derivative, Fair Value, Net

563

Long [Member] | Derivative Financial Instruments, Assets [Member] | Interest Rate Swap [Member]

Derivative [Line Items]

Financial derivatives–assets, at fair value

0

563

Long [Member] | Derivative Financial Instruments, Assets [Member] | Swaption [Member]

Derivative [Line Items]

Financial derivatives–assets, at fair value

$ 0

$ 181

[1]	In the Company's Consolidated Balance Sheet, all balances associated with the repurchase agreements and financial derivatives are presented on a gross basis.
[2]	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.

X

- Definition

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13433-108611

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

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X

- Definition

Fair value of the assets less the liabilities of a derivative or group of derivatives.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13433-108611

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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
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-URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13433-108611

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313

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- Definition

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+ References

No definition available.

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