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Derivative Financial Instruments (Statement Of Operations Information) (Details) - Not Designated as Hedging Instruments [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Derivative [Line Items]
Derivative financial instruments, net gain (loss) recognized	$ 5,672	$ 2,011	$ 3,413
Foreign Currency Forward Contracts [Member]
Derivative [Line Items]
Derivative financial instruments, net gain (loss) recognized	374	(167)	260
Other Extended Settlement Trades [Member]
Derivative [Line Items]
Derivative financial instruments, net gain (loss) recognized		(2)
TBA And Other Forward Agency MBS [Member]
Derivative [Line Items]
Derivative financial instruments, net gain (loss) recognized	$ 5,298	$ 2,180	$ 3,153

X

- Definition

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5618551-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (a),(c),(d),(e)
-URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624171-113959

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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