10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC  20549

FORM 10-Q

R Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the quarterly period ended March 31, 2013

or

£ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Commission File Number: 1-9819

DYNEX CAPITAL, INC.

(Exact name of registrant as specified in its charter)

Virginia	52-1549373
(State or other jurisdiction of	(I.R.S. Employer
incorporation or organization)	Identification No.)
4991 Lake Brook Drive, Suite 100, Glen Allen, Virginia	23060-9245
(Address of principal executive offices)	(Zip Code)
(804) 217-5800 (Registrant’s telephone number, including area code)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

Yes           R           No           £

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).

Yes           R           No           £

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company.  See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	£	Accelerated filer	R
Non-accelerated filer	£ (Do not check if a smaller reporting company)	Smaller reporting company	£

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes           £           No           R

On May 1, 2013, the registrant had 54,940,082 shares outstanding of common stock, $0.01 par value, which is the registrant’s only class of common stock.

DYNEX CAPITAL, INC.

FORM 10-Q

INDEX

			Page
PART I.	FINANCIAL INFORMATION
	Item 1.	Financial Statements
		Consolidated Balance Sheets as of March 31, 2013 (unaudited) and December 31, 2012	1
		Consolidated Statements of Income for the three months ended March 31, 2013 (unaudited) and March 31, 2012 (unaudited)	2
		Consolidated Statements of Comprehensive Income for the three months ended March 31, 2013 (unaudited) and March 31, 2012 (unaudited)	3
		Consolidated Statements of Cash Flows for the three months ended March 31, 2013 (unaudited) and March 31, 2012 (unaudited)	4
		Notes to the Unaudited Consolidated Financial Statements	5
	Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	24
	Item 3.	Quantitative and Qualitative Disclosures About Market Risk	40
	Item 4.	Controls and Procedures	44
PART II.	OTHER INFORMATION
	Item 1.	Legal Proceedings	46
	Item 1A.	Risk Factors	47
	Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	47
	Item 3.	Defaults Upon Senior Securities	47
	Item 4.	Mine Safety Disclosures	47
	Item 5.	Other Information	47
	Item 6.	Exhibits	48
SIGNATURES			49

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PART I. FINANCIAL INFORMATION

ITEM 1.    FINANCIAL STATEMENTS

DYNEX CAPITAL, INC.

CONSOLIDATED BALANCE SHEETS

(amounts in thousands except share data)

	March 31, 2013			December 31, 2012
ASSETS	(unaudited)
Mortgage-backed securities, at fair value (including pledged of $4,127,459 and      $3,967,134, respectively)	$	4,267,917		$	4,103,981
Mortgage-backed securities pending settlement	197,778			—
Securitized mortgage loans, net	64,825			70,823
Other investments, net	822			858
	4,531,342			4,175,662
Cash and cash equivalents	44,129			55,809
Principal receivable on investments	18,615			17,008
Accrued interest receivable	24,920			23,073
Other assets, net	9,107			8,677
Total assets	$	4,628,113		$	4,280,229
LIABILITIES AND SHAREHOLDERS’ EQUITY
Liabilities:
Repurchase agreements	$	3,708,255		$	3,564,128
Payable for mortgage-backed securities pending settlement	198,051			—
Non-recourse collateralized financing	28,473			30,504
Derivative liabilities	37,687			42,537
Accrued interest payable	2,873			2,895
Accrued dividends payable	16,934			16,770
Other liabilities	2,542			6,685
Total liabilities	3,994,815			3,663,519
Commitments and Contingencies (Note 11)
Shareholders’ equity:
Preferred stock, par value $.01 per share, 8.5% Series A Cumulative Redeemable; 8,000,000 shares authorized; 2,300,000 shares issued and outstanding, respectively ($58,532 aggregate liquidation preference)	55,407			55,407
Common stock, par value $.01 per share, 100,000,000 shares authorized; 54,835,420 and 54,268,915 shares issued and outstanding, respectively	548			543
Additional paid-in capital	764,272			759,214
Accumulated other comprehensive income	61,557			52,511
Accumulated deficit	(248,486		)	(250,965		)
Total shareholders' equity	633,298			616,710
Total liabilities and shareholders’ equity	$	4,628,113		$	4,280,229

See notes to consolidated financial statements.

1

DYNEX CAPITAL, INC.

CONSOLIDATED STATEMENTS OF INCOME

(UNAUDITED)

(amounts in thousands except per share data)

	Three Months Ended
	March 31,
	2013			2012
Interest income:
Mortgage-backed securities	$	32,039		$	24,463
Securitized mortgage loans	924			1,504
Other investments	19			305
	32,982			26,272
Interest expense:
Repurchase agreements	10,218			6,644
Non-recourse collateralized financing	238			481
	10,456			7,125
Net interest income	22,526			19,147
Provision for loan losses	(261		)	(60		)
Net interest income after provision for loan losses	22,265			19,087
Gain on sale of investments, net	1,391			351
Fair value adjustments, net	(157		)	(210		)
Other (expense) income, net	(88		)	369
General and administrative expenses:
Compensation and benefits	(2,358		)	(1,798		)
Other general and administrative	(1,450		)	(1,323		)
Net income	$	19,603		$	16,476
Preferred stock dividends	(1,222		)	—
Net income to common shareholders	$	18,381		$	16,476
Weighted average common shares:
Basic	54,300			49,480
Diluted	54,301			49,481
Net income per common share:
Basic	$	0.34		$	0.33
Diluted	$	0.34		$	0.33
Dividends declared per common share	$	0.29		$	0.28

See notes to consolidated financial statements.

2

DYNEX CAPITAL, INC.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(UNAUDITED)

(amounts in thousands)

	Three Months Ended
	March 31,
	2013			2012
Net income	$	19,603		$	16,476
Other comprehensive income:
Change in fair value of available-for-sale investments	5,897			26,000
Reclassification adjustment for gain on sale of investments, net included in statement of income	(1,391		)	—
Change in fair value of cash flow hedges	437			(3,087		)
Reclassification adjustment for cash flow hedges included in statement of income	4,103			3,266
Other comprehensive income	9,046			26,179
Comprehensive income	28,649			42,655
Dividends declared on preferred stock	(1,222		)	—
Comprehensive income to common shareholders	$	27,427		$	42,655

See notes to consolidated financial statements.

3

DYNEX CAPITAL, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(UNAUDITED)

(amounts in thousands)

	Three Months Ended
	March 31,
	2013			2012
Operating activities:
Net income	$	19,603		$	16,476
Adjustments to reconcile net income to cash provided by operating activities:
Increase in accrued interest receivable	(1,401		)	(3,261		)
Decrease in accrued interest payable	(22		)	(468		)
Provision for loan losses	261			60
Gain on sale of investments, net	(1,391		)	(351		)
Fair value adjustments, net	157			210
Amortization and depreciation	32,117			13,257
Stock-based compensation expense	490			453
Cash payments on stock appreciation rights	(9		)	—
Net change in other assets and other liabilities	(4,400		)	(2,053		)
Net cash and cash equivalents provided by operating activities	45,405			24,323
Investing activities:
Purchase of investments	(438,376		)	(881,854		)
Principal payments received on investments	217,358			117,231
(Increase) decrease in principal receivable on investments	(1,607		)	4,418
Proceeds from sales of investments	31,158			49,569
Principal payments received on securitized mortgage loans	5,737			13,745
Other investing activities	(1,001		)	(534		)
Net cash and cash equivalents used in investing activities	(186,731		)	(697,425		)
Financing activities:
Borrowings under repurchase agreements, net	144,023			592,405
Principal payments on non-recourse collateralized financing	(2,024		)	(38,781		)
Proceeds from issuance of common stock	5,152			123,733
Payments related to tax withholding for share-based compensation	(545		)	—
Dividends paid	(16,960		)	(11,307		)
Net cash and cash equivalents provided by financing activities	129,646			666,050
Net decrease in cash and cash equivalents	(11,680		)	(7,052		)
Cash and cash equivalents at beginning of period	55,809			48,776
Cash and cash equivalents at end of period	$	44,129		$	41,724
Supplemental Disclosure of Cash Activity:
Cash paid for interest	$	10,381		$	7,488

See notes to consolidated financial statements.

4

NOTES TO THE UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

DYNEX CAPITAL, INC.

(amounts in thousands except share and per share data)

NOTE 1 – SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation

The accompanying consolidated financial statements of Dynex Capital, Inc. and its qualified real estate investment trust (“REIT”) subsidiaries and its taxable REIT subsidiary (together, “Dynex” or the “Company”) have been prepared in accordance with the instructions to the Quarterly Report on Form 10-Q and Article 10, Rule 10-01 of Regulation S-X promulgated by the Securities and Exchange Commission (the “SEC”).  Accordingly, they do not include all of the information and notes required by accounting principles generally accepted in the United States of America (“GAAP”) for complete financial statements.  In the opinion of management, all significant adjustments, consisting of normal recurring accruals considered necessary for a fair presentation of the consolidated financial statements, have been included.  Operating results for the three months ended March 31, 2013 are not necessarily indicative of the results that may be expected for any other interim periods or for the entire year ending December 31, 2013.  The unaudited consolidated financial statements included herein should be read in conjunction with the audited financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2012 filed with the SEC.

Certain items in the prior years' consolidated financial statements have been reclassified to conform to the current year’s presentation.  The Company’s consolidated balance sheet as of December 31, 2012 now presents its Agency and non-Agency mortgage-backed securities as "mortgage-backed securities, at fair value". In addition, the Company's consolidated statement of income for the three months ended March 31, 2012 now presents its interest income from Agency and non-Agency mortgage-backed securities as "interest income-mortgage-backed securities". These presentation changes have no effect on reported total assets, total liabilities, results of operations, or cash flow activities.

Consolidation

The consolidated financial statements include the accounts of the Company, its qualified REIT subsidiaries and its taxable REIT subsidiary.  The consolidated financial statements represent the Company’s accounts after the elimination of intercompany balances and transactions.  The Company consolidates entities in which it owns more than 50% of the voting equity and control does not rest with others and variable interest entities in which it is determined to be the primary beneficiary in accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 810-10.  The Company follows the equity method of accounting for investments with greater than a 20% and less than 50% interest in partnerships and corporate joint ventures or when it is able to influence the financial and operating policies of the investee but owns less than 50% of the voting equity. As of March 31, 2013 and December 31, 2012, the Company did not have any investments in which it owned less than a 50% interest in the voting equity.

In accordance with ASC Topic 810-10, the Company also consolidates certain trusts through which it has securitized mortgage loans. Additional information regarding the accounting policy for securitized mortgage loans is provided below under "Investments".

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements as well as the reported amounts of revenue and expenses during the reported period.  Actual results could differ from those estimates.  The most significant estimates used by management include but are not limited to fair value measurements of its investments, allowance for loan losses, other-than-temporary impairments, commitments and contingencies, and amortization of premiums and discounts. These items are discussed further below within this note to the consolidated financial statements.

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Federal Income Taxes

The Company believes it has complied with the requirements for qualification as a REIT under the Internal Revenue Code of 1986, as amended (the “Code”).  As such, the Company believes that it qualifies as a REIT for federal income tax purposes, and it generally will not be subject to federal income tax on the amount of its income or gain that is distributed as dividends to shareholders.  The Company uses the calendar year for both tax and financial reporting purposes.  There may be differences between taxable income and income computed in accordance with GAAP.

 Cash and Cash Equivalents

Cash and cash equivalents include cash on hand and highly liquid investments with original maturities of three months or less.

Investments

The Company’s investments include Agency mortgage-backed securities ("MBS"), non-Agency MBS, securitized mortgage loans, and other investments.

Agency MBS. The Company accounts for its investment in Agency MBS in accordance with ASC Topic 320, which requires that investments in debt and equity securities be designated as either “held-to-maturity,” “available-for-sale” or “trading” at the time of acquisition.  As of March 31, 2013, the majority of the Company's Agency MBS are designated as available-for-sale (or "AFS") with the remainder designated as trading.  Although the Company generally intends to hold its available-for-sale securities until maturity, it may, from time to time, sell any of these securities as part of the overall management of its business.  The available-for-sale designation provides the Company with this flexibility.

All of the Company’s Agency MBS are recorded at their fair value on the consolidated balance sheet. In accordance with ASC Topic 820, the Company determines the fair value of its Agency MBS based upon prices obtained from a third-party pricing service and broker quotes. The Company's application of ASC Topic 820 guidance is discussed further in Note 9.  Changes in the fair value of Agency MBS designated as trading are recognized in net income within “fair value adjustments, net”.   Gains (losses) realized upon the sale, impairment, or other disposal of a trading security are also recognized within “fair value adjustments, net”.  Alternatively, changes in the fair value of Agency MBS designated as available-for-sale are reported in other comprehensive income as unrealized gains (losses) until the security is collected, disposed of, or determined to be other than temporarily impaired.  Upon the sale of an available-for-sale security, any unrealized gain or loss is reclassified out of accumulated other comprehensive income (“AOCI”) into net income as a realized “gain (loss) on sale of investments, net” using the specific identification method.

Non-Agency MBS.  The Company accounts for its investment in non-Agency MBS in accordance with ASC Topic 320.  As of March 31, 2013, all of the Company’s non-Agency MBS are designated as available-for-sale and are recorded at their fair value on the consolidated balance sheet.  Changes in fair value are reported in other comprehensive income until the security is collected, disposed of, or determined to be other than temporarily impaired. Like Agency MBS, the Company generally intends to hold its investments in non-Agency MBS until maturity, but it may, from time to time sell any of these securities as part of the overall management of its business.  Upon the sale of an available-for-sale security, any unrealized gain or loss is reclassified out of AOCI into net income as a realized “gain (loss) on sale of investments, net” using the specific identification method.

In accordance with ASC Topic 820, the Company determines the fair value for the majority of its non-Agency MBS based upon prices obtained from a third-party pricing service and broker quotes.  The remainder of the non-Agency MBS are valued by discounting the estimated future cash flows derived from cash flow models that utilize information such as the security’s coupon rate, estimated prepayment speeds, expected weighted average life, collateral composition, estimated future interest rates, expected losses, credit enhancement, as well as certain other relevant information. The Company's application of ASC Topic 820 guidance is discussed further in Note 9.

Mortgage-backed securities pending settlement.  Mortgage-backed securities pending settlement include MBS where the Company has contractually committed to purchasing MBS but the trade has not yet settled as of the balance sheet date. A corresponding liability for the cost of the settlement plus accrued interest is recorded as "payable for mortgage-backed securities pending settlement" in the accompanying consolidated financial statements.

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Other-than-Temporary Impairment.The Company evaluates all MBS in its investment portfolio for other-than-temporary impairments by applying the guidance prescribed in ASC Topic 320-10. The Company compares the amortized cost of each security in an unrealized loss position against the present value of expected future cash flows of the security. If there has been a significant adverse change in the cash flow expectations for a security resulting in the its amortized cost becoming greater than the present value of its expected future cash flows, an other-than-temporary credit impairment has occurred. If the Company does not intend to sell and is not more likely than not required to sell the security, the credit loss is recognized in earnings and the balance of the unrealized loss is recognized in other comprehensive income (loss). If the Company intends to sell the security or will be more likely than not required to sell the security, the full unrealized loss is recognized in earnings.

In periods after the recognition of an other-than-temporary impairment loss for MBS, the Company shall account for the other-than-temporarily impaired MBS as if the MBS had been purchased on the measurement date of the other-than-temporary impairment at an amortized cost basis equal to the previous amortized cost basis less the other-than-temporary impairment recognized in earnings. For MBS for which other-than-temporary impairments were recognized in earnings, the difference between the new amortized cost basis and the cash flows expected to be collected shall be accreted into interest income using the effective interest method. The Company shall continue to estimate the present value of cash flows expected to be collected over the life of the MBS. For all other MBS, if upon subsequent evaluation, there is an increase in the cash flows expected to be collected or if actual cash flows are greater than cash flows previously expected, such changes shall be accounted for as a prospective adjustment to the accretable yield in accordance with Subtopic 310-30 even if the MBS would not otherwise be within the scope of that Subtopic. Subsequent increases and decreases in the fair value of the MBS that are not other-than-temporary shall be included in other comprehensive income.

Please see Note 3 for additional information related to the Company's evaluation for other-than-temporary impairments.

Securitized Mortgage Loans.  Securitized mortgage loans consist of loans pledged to support the repayment of securitization financing bonds issued by the Company. The associated securitization financing bonds are treated as debt of the Company and are presented as a portion of "non-recourse collateralized financing" on the consolidated balance sheet. In accordance with ASC Topic 310-10, the Company's securitized mortgage loans are reported at amortized cost.  Securitized mortgage loans can only be sold subject to the lien of the respective securitization financing indenture. An allowance has been established for currently existing and probable losses on such loans as further discussed below.  

Other Investments.  Other investments include unsecuritized single-family and commercial mortgage loans which are carried at amortized cost in accordance with ASC Topic 310-10. An allowance has been established for currently existing and probable losses on these loans as further discussed below.

Allowance for Loan Losses.An allowance for loan losses has been estimated and established for currently existing and probable losses for securitized and unsecuritized mortgage loans that are considered impaired in accordance with ASC Topic 310-10.  Provisions made to increase the allowance are charged as a current period expense.  Commercial mortgage loans are secured by income-producing real estate and are evaluated individually for impairment when the debt service coverage ratio on the mortgage loan is less than 1:1 or when the mortgage loan is delinquent.  Commercial mortgage loans not evaluated for individual impairment are evaluated for a general allowance.  Certain of the commercial mortgage loans are covered by mortgage loan guarantees that limit the Company’s exposure on these mortgage loans.  Single-family mortgage loans are considered homogeneous and are evaluated on a pool basis for a general allowance.

The Company considers various factors in determining its specific and general allowance requirements, including whether a loan is delinquent, the Company’s historical experience with similar types of loans, historical cure rates of delinquent loans, and historical and anticipated loss severity of the mortgage loans as they are liquidated.  The factors may differ by mortgage loan type (e.g., single-family versus commercial) and collateral type (e.g., multifamily versus office property).  The allowance for loan losses is evaluated and adjusted periodically by management based on the actual and estimated timing and amount of probable credit losses, using the above factors, as well as industry loss experience.

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Repurchase Agreements

Repurchase agreements are treated as financings in accordance with the provision of ASC Topic 860 under which the Company pledges its securities as collateral to secure a loan, which is equal in value to a specified percentage of the estimated fair value of the pledged collateral. The Company retains beneficial ownership of the pledged collateral.  At the maturity of a repurchase agreement, the Company is required to repay the loan and concurrently receives back its pledged collateral from the lender or, with the consent of the lender, the Company may renew the agreement at the then prevailing financing rate.  A repurchase agreement lender may require the Company to pledge additional collateral in the event of a decline in the fair value of the collateral pledged.  Repurchase agreement financing is recourse to the Company and the assets pledged.  Most of the Company’s repurchase agreements are based on the September 1996 version of the Bond Market Association Master Repurchase Agreement, which generally provides that the lender, as buyer, is responsible for obtaining collateral valuations from a generally recognized source agreed to by both the Company and the lender, or, in an instance when such source is not available, the value determination is made by the lender.

Derivative Instruments

The Company may enter into interest rate swap agreements, interest rate cap agreements, interest rate floor agreements, financial forwards, financial futures and options on financial futures (“interest rate agreements”) to manage its sensitivity to changes in interest rates.  The Company accounts for its interest rate agreements under ASC Topic 815, designating each as either a cash flow hedging position or a trading position using criteria established therein.  In order to qualify as a cash flow hedge, ASC Topic 815 requires formal documentation to be prepared at the inception of the interest rate agreement that meets certain conditions.  If these conditions are not met, an interest rate agreement will be classified as a trading position.

For interest rate agreements designated as trading positions, the Company records these instruments at fair value on the Company’s balance sheet in accordance with ASC Topic 815.  Changes in their market value are measured at each reporting date and recognized in the current period’s consolidated statement of income within "fair value adjustments, net".

For interest rate agreements designated as cash flow hedges, the Company evaluates the effectiveness of these hedges against the financial instrument being hedged.  The effective portion of the hedge relationship on an interest rate agreement designated as a cash flow hedge is reported in AOCI and is later reclassified into the consolidated statement of income in the same period during which the hedged transaction affects earnings.  The ineffective portion of such hedge is immediately reported in the current period’s consolidated statement of income.  These derivative instruments are carried at fair value on the Company’s consolidated balance sheet in accordance with ASC Topic 815.  Cash posted to meet margin calls, if any, is included on the consolidated balance sheet in other assets.

In the event a hedging instrument is terminated, any basis adjustments or changes in the fair value of hedges recorded in AOCI are recognized into income or expense in conjunction with the original hedge or hedged exposure.

If the underlying asset, liability or commitment is sold or matures, the hedge is deemed partially or wholly ineffective, or if the criterion that was established at the time the hedging instrument was entered into no longer exists, the interest rate agreement no longer qualifies as a designated hedge.  Under these circumstances, such changes in the market value of the interest rate agreement are recognized in the current period’s statement of income.

The Company has elected to use the portfolio exception in ASC 820-10-35-18D with respect to measuring counterparty credit risk for derivative instruments. The Company manages credit risk for its derivative positions on a counterparty-by-counterparty basis (that is, on the basis of its net portfolio exposure with each counterparty), consistent with its risk management strategy for such transactions. The Company manages credit risk by considering indicators of risk such as credit ratings, and by negotiating terms in its ISDA master netting arrangements and, if applicable, any associated Credit Support Annex documentation, with each individual counterparty. Since the effective date of ASC 820, management has monitored and measured credit risk and calculated credit valuation adjustments for its derivative transactions on the basis of its relationships at the counterparty portfolio level. Management receives reports from an independent third-party valuation specialist on a monthly basis providing the credit valuation adjustments at the counterparty portfolio level for purposes of reviewing and managing its credit risk exposures. Since the portfolio exception applies only to the fair value measurement and not to financial statement presentation, the portfolio-level

8

adjustments are then allocated in a reasonable and consistent manner each period to the individual assets or liabilities that make up the group, in accordance with other applicable accounting guidance and the Company's accounting policy elections.

Although MBS have characteristics that meet the definition of a derivative instrument, ASC 815 specifically excludes these instruments from its scope because they are accounted for as debt securities under ASC 320.

Interest Income, Premium Amortization, and Discount Accretion 

Interest income is accrued based on the outstanding principal balance (or notional balance in the case of interest-only, or "IO", securities) on the Company's investment securities and their contractual terms. Premiums and discounts on Agency and non-Agency MBS and on loans are recognized over the expected life of the investment using the effective yield method in accordance with ASC Topic 310-20. Adjustments to premium amortization are made for actual prepayment activity as well as changes in projected future cash flows in accordance with 320-10. Interest income on non-Agency MBS that are rated lower than “AA” are recognized over the expected life as adjusted for the estimated prepayments and credit losses of the securities.  Actual prepayment and any credit losses experienced are compared to projected prepayments and credit losses, and effective yields are adjusted when those amounts differ.

The Company's projections of future cash flows are based on input and analysis received from external sources and internal models, and includes assumptions about the amount and timing of credit losses, loan prepayment rates, fluctuations in interest rates, and other factors. On at least a quarterly basis, the Company reviews and makes any necessary adjustments to its cash flow projections and updates the yield recognized on these assets.

For securities, the accrual of interest is discontinued when, in the opinion of management, it is probable that all amounts contractually due will not be collected, and in certain instances, as a result of the other-than-temporary impairment analysis. For loans, the accrual of interest is discontinued when, in the opinion of management, the interest is not collectible in the normal course of business, when the loan is significantly past due or when the primary servicer of the loan fails to advance the interest and/or principal due on the loan.  Loans are considered past due when the borrower fails to make a timely payment in accordance with the underlying loan agreement.  All interest accrued but not collected for investments that are placed on a non-accrual status or are charged-off is reversed against interest income.  Interest on these investments is accounted for on the cash-basis or cost-recovery method until qualifying for return to accrual status.  Investments are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured.

Stock-Based Compensation

Pursuant to the Company’s 2009 Stock and Incentive Plan ("SIP"), the Company may grant stock-based compensation to eligible employees, directors or consultants or advisers to the Company, including stock awards, stock options, stock appreciation rights (“SARs”), dividend equivalent rights, performance shares, and restricted stock units.  Currently, the Company's stock options and restricted stock issued under this plan may be settled only in shares of its common stock, and therefore are treated as equity awards with their fair value measured at the grant date as required by ASC Topic 718. Outstanding SARs issued by the Company may be settled only in cash, and therefore have been treated as liability awards with their fair value estimated at the grant date and remeasured at the end of each reporting period using the Black-Scholes option valuation model as required by ASC Topic 718.  Please see Note 10 for additional disclosures regarding the Company's SIP.

Contingencies

In the normal course of business, there are various lawsuits, claims, and other contingencies pending against the Company.  We evaluate whether to establish provisions for estimated losses from those matters in accordance with ASC Topic 450, which states that a liability is recognized for a contingent loss when: (a) the underlying causal event has occurred prior to the balance sheet date; (b) it is probable that a loss has been incurred; and (c) there is a reasonable basis for estimating that loss. A liability is not recognized for a contingent loss when it is only possible or remotely possible that a loss has been incurred, however, possible contingent losses shall be disclosed. Please refer to Note 12 for details on the most significant matters currently pending.

9

Recent Accounting Pronouncements

There are no recently issued accounting pronouncements that are expected to materially impact the Company's financial condition or results of operations which are not effective as of the date of this Quarterly Report on Form 10-Q.

NOTE 2 – NET INCOME PER COMMON SHARE

Net income per common share is presented on both a basic and diluted basis.  Diluted net income per common share assumes the exercise of stock options using the treasury stock method for all periods presented. Because the Company's 8.50% Series A Cumulative Redeemable Preferred Stock (the "Series A Preferred Stock") is redeemable at the Company's option for cash only, and the Series A Preferred Stock can convert into shares of common stock only upon a change of control of the Company, the effect of those shares is excluded from the calculation of diluted net income per common share for the three months ended March 31, 2013. Holders of unvested shares of our issued and outstanding restricted common stock are eligible to receive non-forfeitable dividends. As such, these unvested shares are considered participating securities as per ASC 260-10 and therefore are included in the computation of basic earnings per share ("EPS") using the two-class method.

The following table presents the calculation of the numerator and denominator for both basic and diluted net income per common share:

	Three Months Ended
	March 31,
	2013					2012
	Income			Weighted-Average Common Shares		Income		Weighted- Average Common Shares
Net income	$	19,603				$	16,476
Preferred stock dividends	(1,222		)			—
Net income to common shareholders	$	18,381		54,300,020		$	16,476	49,480,426
Effect of dilutive stock options	—			754		—		469
Diluted	$	18,381		54,300,774		$	16,476	49,480,895
Net income per common share:
Basic				$	0.34			$	0.33
Diluted (1)				$	0.34			$	0.33

(1) For the three months ended March 31, 2012, the calculation of diluted net income per common shareexcludes the effect of 15,000 unexercised stock option awards because their inclusion would have been anti-dilutive.

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NOTE 3 – MORTGAGE-BACKED SECURITIES

The following table presents the components of the Company’s MBS designated as AFS as of March 31, 2013 and December 31, 2012 and includes MBS pending settlement:

	March 31, 2013
	Par		Net Premium (Discount)			Amortized Cost		Net Unrealized Gain (Loss)		Fair Value		Weighted average coupon
Agency:
RMBS (including pending settlements)	$	2,732,173	$	158,205		$	2,890,378	$	4,643	$	2,895,021	3.56	%
CMBS	280,842		21,562			302,404		19,812		322,216		5.18	%
CMBS IO (1)	—		576,161			576,161		25,228		601,389		1.02	%
Total Agency AFS:	3,013,015		755,928			3,768,943		49,683		3,818,626
Non-Agency:
RMBS	10,053		(758		)	9,295		285		9,580		4.20	%
CMBS	472,650		(16,685		)	455,965		40,310		496,275		5.40	%
CMBS IO (1)	—		104,930			104,930		6,476		111,406		0.93	%
Total non-Agency AFS:	482,703		87,487			570,190		47,071		617,261
Total AFS securities (including pending settlements)	$	3,495,718	$	843,415		$	4,339,133	$	96,754	$	4,435,887

(1) The combined notional balance for Agency CMBS IO and non-Agency CMBS IO is $10,873,160 and $2,385,979, respectively, as of March 31, 2013.

	December 31, 2012
	Par		Net Premium (Discount)			Amortized Cost		Net Unrealized Gain (Loss)		Fair Value		Weighted average coupon
Agency:
RMBS	$	2,425,826	$	137,168		$	2,562,994	$	8,343	$	2,571,337	3.67	%
CMBS	280,602		21,907			302,509		21,564		324,073		5.19	%
CMBS IO (1)	—		550,171			550,171		17,009		567,180		0.95	%
Total Agency AFS:	2,706,428		709,246			3,415,674		46,916		3,462,590
Non-Agency:
RMBS	11,411		(781		)	10,630		408		11,038		4.28	%
CMBS	463,747		(17,313		)	446,434		39,908		486,342		5.31	%
CMBS IO (1)	—		108,928			108,928		5,014		113,942		0.86	%
Total non-Agency AFS:	475,158		90,834			565,992		45,330		611,322
Total AFS securities	$	3,181,586	$	800,080		$	3,981,666	$	92,246	$	4,073,912

(1) The combined notional balance for the Agency CMBS IO and non-Agency CMBS IO is $10,059,495 and $2,393,614, respectively, as of December 31, 2012.

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The Company has investments in additional Agency CMBS not included in the tables above that are designated as trading securities by the Company with fair values of $29,808 and $30,069 as of March 31, 2013 and December 31, 2012, respectively. Changes in the fair value of these Agency CMBS are recognized each reporting period within "fair value adjustments, net" in the Company's consolidated statements of income. As of March 31, 2013 and December 31, 2012, the amortized cost of these Agency CMBS designated as trading securities was $27,381 and $27,535, respectively. The Company recognized a net unrealized loss for the three months ended March 31, 2013 of $(107) compared to a net unrealized loss of $(136) for the three months ended March 31, 2012, respectively, related to changes in fair value. The Company also has derivatives designated as trading instruments, and the changes in their fair value are also included within "fair value adjustments, net". Please refer to Note 7 for additional information on these derivatives designated as trading instruments.

The following table presents certain information for those Agency MBS in an unrealized loss position as of March 31, 2013 and December 31, 2012:

	March 31, 2013						December 31, 2012
	Fair Value		Gross Unrealized Losses			# of Securities	Fair Value		Gross Unrealized Losses			# of Securities
Continuous unrealized loss position for less than 12 months:
Agency MBS	$	1,034,706	$	(8,997	)	87	$	1,026,277	$	(6,552	)	83
Non-Agency MBS	4,480		(314		)	2	13,877		(76		)	3
Continuous unrealized loss position for 12 months or longer:
Agency MBS	$	251,664	$	(6,415	)	35	$	271,719	$	(5,797	)	34
Non-Agency MBS	2,188		(161		)	6	2,701		(198		)	8

Because the principal and interest related to Agency MBS are guaranteed by the government-sponsored entities Fannie Mae and Freddie Mac who have the implicit guarantee of the U.S. government, the Company does not consider any of the unrealized losses on its Agency MBS to be credit related. Although the unrealized losses are not credit related, the Company assesses its ability and intent to hold any Agency MBS with an unrealized loss until the recovery in its value. This assessment is based on the amount of the unrealized loss and significance of the related investment as well as the Company’s current leverage and anticipated liquidity.  Based on this analysis, the Company has determined that the unrealized losses on its Agency MBS as of March 31, 2013 and December 31, 2012 were temporary.

The Company also reviews any non-Agency MBS in an unrealized loss position to evaluate whether any decline in fair value represents an other-than-temporary impairment. The evaluation includes a review of the credit ratings of these non-Agency MBS and the seasoning of the mortgage loans collateralizing these securities as well as the estimated future cash flows which include projected losses. The Company performed this evaluation for the non-Agency MBS in an unrealized loss position as of March 31, 2013 and has determined that there have not been any adverse changes in the timing or amount of estimated future cash flows that necessitate a recognition of other-than-temporary impairment amounts as of March 31, 2013.

NOTE 4 – SECURITIZED MORTGAGE LOANS, NET

The Company's securitized mortgage loans are pledged as collateral for its associated securitization financing bonds, which are discussed further in Note 8. Please also refer to Note 5 for disclosures related to impaired securitized mortgage loans and the related allowance for loan losses. The following table summarizes the components of securitized mortgage loans as of March 31, 2013 and December 31, 2012:

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	March 31, 2013									December 31, 2012
	Commercial			Single-family			Total			Commercial			Single-family			Total
Principal/par value (1)	$	27,010		$	38,730		$	65,740		$	30,576		$	41,337		$	71,913
Unamortized (discount) premium,    net	(1,229		)	574			(655		)	(1,267		)	616			(651		)
Amortized cost	25,781			39,304			65,085			29,309			41,953			71,262
Allowance for loan losses	(145		)	(115		)	(260		)	(150		)	(289		)	(439		)
	$	25,636		$	39,189		$	64,825		$	29,159		$	41,664		$	70,823

 (1) Includes funds held by trustees.

The balance of the Company's securitized commercial mortgage loans has decreased since December 31, 2012 primarily due to principal payments, including amounts received on defeased loans, of $3,565.  The Company's securitized commercial mortgage loans were originated principally in 1996 and 1997 and are collateralized by first deeds of trust on income producing properties.  Approximately half of these securitized commercial mortgage loans are secured by multifamily properties with the remainder being secured by industrial or mixed use properties. As of March 31, 2013 and December 31, 2012, the weighted average loan-to-value ratio based on original appraisal was 50% and 48%, respectively. There were no securitized commercial mortgage loans identified as seriously delinquent (60 or more days past due) and therefore on nonaccrual status on the Company's balance sheet as of March 31, 2013 or as of December 31, 2012.

The balance of the Company's securitized single-family mortgage loans have decreased since December 31, 2012 due to principal payments on the loans of $2,172. These single-family mortgage loans are secured by first deeds of trust on residential real estate and were originated principally from 1992 to 1997.  As of March 31, 2013 and December 31, 2012, the current loan-to-value ratio based on original appraisal was approximately 42% and 43%, respectively. The unpaid principal balance of the Company's securitized single-family mortgage loans identified as seriously delinquent as of March 31, 2013 is $4,171 compared to $3,380 as of December 31, 2012. The Company continues accruing interest on any seriously delinquent securitized single-family mortgage loan so long as the primary servicer continues to advance the interest and/or principal due on the loan.

NOTE 5 – ALLOWANCE FOR LOAN LOSSES

As discussed in Note 1, the Company estimates for currently existing and probable losses for its mortgage loans that are considered impaired. A loan can be considered impaired even if it is not delinquent. The following table summarizes the aggregate activity for the portion of the allowance for loan losses that relates to the securitized mortgage loan portfolio for the periods indicated:

	Three Months Ended
	March 31,
	2013						2012
	Commercial			Single-family			Commercial			Single-family
Allowance at beginning of period	$	150		$	289		$	2,268		$	231
Provision for loan losses	—			261			60			—
Credit losses, net of recoveries	(5		)	(435		)	(987		)	—
Allowance at end of period	$	145		$	115		$	1,341		$	231

The following table summarizes information regarding the Company's impaired securitized commercial and single-family mortgage loans as of March 31, 2013 and December 31, 2012:

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	March 31, 2013				March 31, 2012
	Commercial		Single-family		Commercial		Single-family
Unpaid principal balance of impaired securitized loans	$	—	$	4,171	$	1,814	$	3,029
Basis adjustments related to impaired securitized loans	—		62		—		59
Amortized cost basis of impaired securitized loans	$	—	$	4,233	$	1,814	$	3,088

For the securitized single-family mortgage loans identified as impaired as of March 31, 2013, the Company estimates that it has recognized approximately $61 of interest income for the three months ended March 31, 2013 compared to $40 for the three months ended March 31, 2012 for the securitized single-family mortgage loans identified as impaired as of March 31, 2012. Although the Company did not have any specific securitized commercial mortgage loans identified as impaired as of March 31, 2013, it is currently maintaining a general allowance for commercial mortgage loan losses of $145. The Company recognized $0 of interest income on impaired commercial securitized mortgage loans for the three months ended March 31, 2013compared to an estimate of $25 for the three months ended March 31, 2012 for the securitized commercial mortgage loans identified as impaired as of March 31, 2012.

NOTE 6 – REPURCHASE AGREEMENTS

The following tables present the components of the Company’s repurchase agreements as of March 31, 2013 and December 31, 2012 by the fair value and type of securities pledged as collateral to the repurchase agreements:

	March 31, 2013
Collateral Type	Balance			Weighted Average Rate		Fair Value of Collateral Pledged
Agency RMBS	$	2,476,620		0.43	%	$	2,589,965
Agency CMBS	245,723			0.41	%	286,951
Agency CMBS IOs	477,290			1.20	%	599,086
Non-Agency RMBS	7,283			1.85	%	8,289
Non-Agency CMBS	392,609			1.32	%	475,709
Non-Agency CMBS IO	85,720			1.47	%	111,406
Securitization financing bonds	23,566			1.61	%	26,945
Deferred costs	(556		)	n/a		n/a
	$	3,708,255		0.65	%	$	4,098,351

	December 31, 2012
Collateral Type	Balance			Weighted Average Rate		Fair Value of Collateral Pledged
Agency RMBS	$	2,365,982		0.48	%	$	2,458,200
Agency CMBS	248,771			0.47	%	291,445
Agency CMBS IOs	443,540			1.22	%	565,494
Non-Agency RMBS	7,808			1.84	%	9,634
Non-Agency CMBS	382,352			1.34	%	465,306
Non-Agency CMBS IOs	88,221			1.46	%	113,942
Securitization financing bonds	28,113			1.64	%	31,483
Deferred costs	(659		)	n/a		n/a
	$	3,564,128		0.61	%	$	3,935,504

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The combined weighted average original term to maturity for the Company’s repurchase agreements was 58 days as of March 31, 2013 and 57 days as of December 31, 2012.  The following table provides a summary of the original maturities as of March 31, 2013 and December 31, 2012:

Original Maturity	March 31, 2013		December 31, 2012
30 days or less	$	1,030,894	$	622,957
31 to 60 days	1,333,963		1,263,105
61 to 90 days	969,050		298,660
Greater than 90 days	374,904		1,380,065
	$	3,708,811	$	3,564,787

As of March 31, 2013, the Company had approximately 17% of its shareholders' equity at risk with Wells Fargo Bank National Association together with its affiliate Wells Fargo Securities, LLC. The borrowings outstanding with that counterparty and its affiliates as of March 31, 2013 were $365,061 with a weighted average borrowing rate of 1.34%. Of the amount outstanding with this counterparty and its affiliate, $200,000 is under a two-year repurchase facility with Wells Fargo Bank National Association, which is the facility's aggregate maximum borrowing capacity and which is set to mature on August 6, 2014, subject to certain early termination provisions contained in the master repurchase agreement. The facility is collateralized primarily by Agency CMBS IO, and its weighted average borrowing rate as of March 31, 2013 was 1.47%. Shareholders' equity at risk did not exceed 10% for any of the Company's other counterparties.

As of March 31, 2013, the Company had repurchase agreement amounts outstanding with 20 of its 29 available counterparties. The Company's counterparties, as set forth in the master repurchase agreement with the counterparty, require the Company to comply with various customary operating and financial covenants, including, but not limited to, minimum net worth, maximum declines in net worth in a given period, and maximum leverage requirements as well as maintaining the Company's REIT status.  In addition, some of the agreements contain cross default features, whereby default under an agreement with one lender simultaneously causes default under agreements with other lenders.  To the extent that the Company fails to comply with the covenants contained in these financing agreements or is otherwise found to be in default under the terms of such agreements, the counterparty has the right to accelerate amounts due under the master repurchase agreement. The Company was in compliance with all covenants as of March 31, 2013.

NOTE 7 – DERIVATIVES

As part of its risk management activities, the Company’ utilizes derivative financial instruments to manage its exposure to cash flow volatility and market value risk related to interest rate risk on the Company's investments and their associated financing. The Company's derivative instruments are comprised entirely of interest rate swaps which are designated as either hedging instruments or trading instruments.  The tables below summarize information about the Company’s derivative financial instruments on the balance sheet as of the dates indicated:  

		March 31, 2013							December 31, 2012
Accounting Designation:	Balance Sheet Location:	Fair Value			Aggregate Notional Amount		Weighted-average Fixed Rate Swapped		Fair Value			Aggregate Notional Amount		Weighted-average Fixed Rate Swapped
Hedging instruments		$	(35,314	)	$	1,410,000	1.51	%	$	(39,813	)	$	1,435,000	1.50	%
Trading instruments		(2,373		)	27,000		2.88	%	(2,724		)	27,000		2.88	%
	Derivative liabilities	$	(37,687	)					$	(42,537	)

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Included in the balance as of March 31, 2013 is one forward-starting interest rate swap with a notional balance of $25,000 and a weighted average pay-fixed rate of 1.70% which will not be effective until the second quarter of 2013.

The following table summarizes the contractual maturities remaining for the Company’s outstanding interest rate swap agreements as of March 31, 2013:

Remaining Maturity	Notional Amount: Trading		Notional Amount: Hedging		Notional Amount: Total		Number of Swaps	Weighted-Average Fixed Rate Swapped
0-12 months	$	—	$	300,000	$	300,000	5	1.29	%
13-36 months	—		490,000		490,000		11	1.76	%
37-60 months	27,000		220,000		247,000		10	1.29	%
Over 60 months	—		400,000		400,000		14	1.60	%
	$	27,000	$	1,410,000	$	1,437,000	40	1.54	%

With respect to hedging instruments, the Company’s objective for using interest rate swaps is to minimize its exposure to the risk of cash flow volatility from increased interest expense on its repurchase agreement borrowings.  As repurchase agreements are short-term in nature, as they mature, the interest rate on the new repurchase agreement resets to a market interest rate. This sequential rollover borrowing program creates a variable interest expense pattern.  The changes in the cash flows of the interest rate swaps are expected to be highly effective at offsetting changes in the interest portion of the cash flows expected to be paid at maturity of each borrowing.

The table below presents the effect of the derivatives designated as hedging instruments on the Company’s consolidated statement of comprehensive income for the periods indicated:

Type of Derivative Designated as Cash Flow Hedge	Amount of Gain (Loss) Recognized in OCI (Effective Portion)	Location of Amount Reclassified from OCI into Net Income (Effective Portion)	Amount Reclassified from OCI into Net Income (Effective Portion)	Location of Amount Recognized in Net Income (Ineffective Portion)	Amount of Loss Recognized in Net Income (Ineffective Portion)
For the three months ended March 31, 2013:
Interest rate swaps	$437	Interest expense	$4,103	Other income, net	$(41)
For the three months ended March 31, 2012:
Interest rate swaps	$(3,087)	Interest expense	$3,266	Other income, net	$(62)

As of March 31, 2013, the Company estimates that $17,955 will be reclassified from AOCI into earnings as an increase to interest expense within the next 12 months.

The Company’s objective for designating certain interest rate swaps as trading instruments is to offset the changes in market value for a portion of its Agency CMBS investments that are also designated as trading. The table below presents the amount of loss recognized in net income for the changes in fair value of the derivatives designated as trading instruments for the periods indicated:

Type of Derivative Designated as Trading	Location On Income Statement	Three Months Ended
		March 31, 2013			March 31, 2012
Interest rate swaps	Fair value adjustments, net	$	(17	)	$	(74	)

These interest rate swap agreements contain various covenants related to the Company’s credit risk.  Specifically, if the Company defaults on any of its indebtedness, including those circumstances whereby repayment of the indebtedness has not yet been accelerated by the lender, or is declared in default of any of its covenants with any counterparty, then the Company could also be declared in default of its derivative obligations. Additionally, the agreements outstanding with its derivative counterparties allow those counterparties to require settlement of its outstanding derivative transactions if the Company fails to earn GAAP net

16

income greater than one dollar as measured on a rolling two quarter basis.  These interest rate agreements also contain provisions whereby, if the Company fails to maintain a minimum net amount of shareholders’ equity, then the Company may be declared in default on its derivative obligations.  As of March 31, 2013, the Company had derivatives in a net liability position with its derivative counterparties for which it had pledged Agency MBS with a fair value of $40,568 and cash of $38 as collateral.  If the Company had breached any of these agreements as of March 31, 2013, it could have been required to settle those derivatives at their estimated termination value of $38,560, which includes accrued interest but excludes any adjustment for nonperformance risk. As of March 31, 2013, the Company was in compliance with all covenants.

NOTE 8 – NON-RECOURSE COLLATERIZED FINANCING

As of March 31, 2013, the Company's non-recourse collateralized financing consists of collateral-based financing issued by special purpose securitization trusts. The following table summarizes information about the Company’s non-recourse collateralized financing for the periods indicated:

	March 31, 2013
	Interest Rate	Weighted Average Life Remaining (in years) (1)	Balance Outstanding			Value of Collateral
Secured by non-Agency CMBS	6.2% fixed	1.9	$	14,396		$	15,485
Secured by single-family mortgage loans	1-month LIBOR plus 0.30%	2.8	14,554			15,249
Unamortized net bond premium and deferred costs			(477		)	n/a
			$	28,473		$	30,734

	December 31, 2012
	Interest Rate	Weighted Average Life Remaining (in years) (1)	Balance Outstanding			Value of Collateral
Secured by non-Agency CMBS	6.2% fixed	1.4	$	15,000		$	15,825
Secured by single-family mortgage loans	1-month LIBOR plus 0.30%	3.1	15,974			17,309
Unamortized net bond premium and deferred costs			(470		)	n/a
			$	30,504		$	33,134

(1)    Weighted average life remaining is based on the current projected future cash flows as of the date indicated.

NOTE 9 – FAIR VALUE OF FINANCIAL INSTRUMENTS

ASC Topic 820 defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. ASC 820 clarifies that fair value should be based on the assumptions market participants would use when pricing as asset or liability and also requires an entity to consider all aspects of nonperformance risk, including the entity's own credit standing, when measuring fair value of a liability. ASC Topic 820 established a valuation hierarchy of three levels as follows:

• Level 1 – Inputs are unadjusted, quoted prices in active markets for identical assets or liabilities as of the measurement date. None of the Company's assets and liabilities that are measured at fair value are included in this category.

• Level 2 – Inputs include quoted prices in active markets for similar assets or liabilities; quoted prices in inactive markets for identical or similar assets or liabilities; or inputs either directly observable or indirectly observable

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through correlation with market data at the measurement date and for the duration of the instrument’s anticipated life.  The Company’s fair valued assets and liabilities that are generally included in this category are Agency MBS, certain non-Agency MBS, and derivatives.

• Level 3 – Unobservable inputs are supported by little or no market activity. The unobservable inputs represent management’s best estimate of how market participants would price the asset or liability at the measurement date.  Consideration is given to the risk inherent in the valuation technique and the risk inherent in the inputs to the model.  The Company’s fair valued assets and liabilities that are generally included in this category are certain non-Agency MBS and other investments.

The following table presents the fair value of the Company’s assets and liabilities measured at fair value on a recurring basis as of March 31, 2013 and December 31, 2012, segregated by the hierarchy level of the fair value estimate:

	March 31, 2013
	Fair Value		Level 1		Level 2		Level 3
Assets:
Agency MBS (including pending settlements)	$	3,848,434	$	—	$	3,848,434	$	—
Non-Agency MBS	617,261		—		496,292		120,969
Other investments	25		—		—		25
Total assets carried at fair value	$	4,465,720	$	—	$	4,344,726	$	120,994
Liabilities:
Derivative liabilities	$	37,687	$	—	$	37,687	$	—
Total liabilities carried at fair value	$	37,687	$	—	$	37,687	$	—

	December 31, 2012
	Fair Value		Level 1		Level 2		Level 3
Assets:
Agency MBS	$	3,492,659	$	—	$	3,492,659	$	—
Non-Agency MBS	611,322		—		506,102		105,220
Other investments	25		—		—		25
Total assets carried at fair value	$	4,104,006	$	—	$	3,998,761	$	105,245
Liabilities:
Derivative liabilities	$	42,537	$	—	$	42,537	$	—
Total liabilities carried at fair value	$	42,537	$	—	$	42,537	$	—

The Company’s Agency MBS, as well a majority of its non-Agency MBS, are substantially similar to securities that either are currently actively traded or have been recently traded in their respective market.  Their fair values are derived from an average of multiple dealer quotes and thus are considered Level 2 fair value measurements.

The Company’s remaining non-Agency MBS are comprised of securities for which there are not substantially similar securities that trade frequently.  As such, the Company determines the fair value of those securities by discounting the estimated future cash flows derived from cash flow models using assumptions that are confirmed to the extent possible by third party dealers or other pricing indicators.  Significant inputs into those pricing models are Level 3 in nature due to the lack of readily available market quotes.  Information utilized in those pricing models include the security’s credit rating, coupon rate, estimated prepayment speeds, expected weighted average life, collateral composition, estimated future interest rates, expected credit losses, and credit enhancement as well as certain other relevant information.  Significant changes in any of these inputs in isolation would result in a significantly different fair value measurement. Generally Level 3 assets are most sensitive to the default rate and severity assumptions.

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The table below presents information about the significant unobservable inputs used in the fair value measurement for the Company's Level 3 non-Agency CMBS and RMBS as of March 31, 2013:

	Quantitative Information about Level 3 Fair Value Measurements(1)
	Prepayment Speed		Default Rate		Severity		Discount Rate
Non-Agency CMBS	20 CPY		2.5	%	35.0	%	5.1	%
Non-Agency RMBS	9	CPR	0.9	%	18.5	%	6.7	%

(1) Data presented are weighted averages.

The following table presents the activity of the instruments fair valued at Level 3 during the three months ended March 31, 2013:

	Level 3 Fair Values
	Non-Agency CMBS			Non-Agency RMBS			Other		Total assets
Balance as of beginning of the period	$	100,102		$	5,118		$	25	$	105,245
Purchases	19,516			—			—		19,516
Unrealized (loss) gain included in OCI	(444		)	(34		)	—		(478		)
Principal payments	(2,059		)	(1,345		)	—		(3,404		)
Amortization	104			11			—		115
Balance as of end of period	$	117,219		$	3,750		$	25	$	120,994

The following table presents a summary of the recorded basis and estimated fair values of the Company’s financial instruments as of March 31, 2013 and December 31, 2012:

	March 31, 2013				December 31, 2012
	Recorded Basis		Fair Value		Recorded Basis		Fair Value
Assets:
Agency MBS (including pending settlements)	$	3,848,434	$	3,848,434	$	3,492,659	$	3,492,659
Non-Agency MBS	617,261		617,261		611,322		611,322
Securitized mortgage loans, net	64,825		54,757		70,823		61,916
Other investments	822		775		858		810
Liabilities:
Repurchase agreements	$	3,708,255	$	3,708,811	$	3,564,128	$	3,564,787
Non-recourse collateralized financing	28,473		28,810		30,504		30,756
Derivative liabilities	37,687		37,687		42,537		42,537

There were no assets or liabilities which were measured at fair value on a non-recurring basis as of March 31, 2013 or December 31, 2012.

NOTE 10 – SHAREHOLDERS' EQUITY

Preferred Stock

The Company declared dividends of $0.53125 for the period January 16, 2013 through April 15, 2013 on its 8.50% Series A Cumulative Redeemable Preferred Stock.

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Common Stock

The following table presents a summary of the changes in the number of common shares outstanding for the periods indicated:

	Three Months Ended
	March 31,
	2013		2012
Balance as of beginning of period	54,268,915		40,382,530
Common stock issued under DRIP	298,304		3,932
Common stock issued under ATM program	180,986		402,494
Common stock issued via secondary offering	—		13,332,748
Common stock issued or redeemed under stock and incentive plans	139,600		216,663
Common stock forfeited for tax withholding on share-based compensation	(52,385	)	—
Balance as of end of period	54,835,420		54,338,367

The Company has approximately 7,416,520 shares of common stock that remain available to offer and sell through its sales agent, JMP Securities LLC, under its "at the market", or "ATM" program, as of March 31, 2013. The Company received proceeds of $1,956, net of $30 in broker sales commissions, for the common shares issued under this program during the three months ended March 31, 2013.  

The Company's Dividend Reinvestment and Share Purchase Plan ("DRIP") allows registered shareholders to automatically reinvest some or all of their quarterly dividends in shares of the Company’s stock and provides an opportunity for investors to purchase shares of the Company’s stock, potentially at a discount to the prevailing market price. A total of 3,000,000 shares have been reserved for issuance under the DRIP, and there are 2,688,216 shares remaining for issuance as of March 31, 2013. The Company declared a first quarter common stock dividend of $0.29 per share payable on April 30, 2013 to shareholders of record as of April 1, 2013. There was no discount for shares purchased through the DRIP during the first quarter of 2013.

Incentive Plans.     Pursuant to the Company’s 2009 Stock and Incentive Plan, the Company may grant stock-based compensation to eligible employees, directors or consultants or advisers to the Company, including stock awards, stock options, SARs, dividend equivalent rights, performance shares, incentive awards, and restricted stock units.  Of the 2,500,000 shares of common stock authorized for issuance under this plan, 1,665,676 shares remain available for issuance as of March 31, 2013. Total stock-based compensation expense recognized by the Company for the three months ended March 31, 2013 was $489 compared to $453 for the three months ended March 31, 2012.

The following table presents a rollforward of the restricted stock activity for the periods indicated:

	Three Months Ended
	March 31,
	2013		2012
Restricted stock outstanding as of beginning of period	448,283		365,506
Restricted stock granted	139,600		200,821
Restricted stock vested	(153,720	)	(109,293	)
Restricted stock outstanding as of end of period	434,163		457,034

 The restricted stock granted during the three months ended March 31, 2013 and March 31, 2012 had fair values of $1,491 and $1,891, respectively at their grant dates. As of March 31, 2013, the fair value of the Company’s outstanding restricted stock remaining to be amortized into compensation expense is $4,018, of which $1,634 is expected to be amortized in the remaining nine months of 2013, $1,313 in 2014, $890 in 2015, and $181 in 2016.

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As of March 31, 2013, the Company also has SARs and stock options outstanding, all of which were granted pursuant to the Company's 2004 Stock Incentive Plan. No new awards may be granted under this plan. As of March 31, 2013, all of the Company's outstanding SARs are vested and exercisable at any time prior to their expiration date of December 31, 2013. As of March 31, 2013 and December 31, 2012, the fair value of the Company’s outstanding SARs of $90 and $66, respectively, are recorded as liabilities on its consolidated balance sheet for the respective periods. The following table presents a rollforward of the SARs activity for the periods indicated:

	Three Months Ended
	March 31,
	2013				2012
	Quantity		Weighted-Average Price		Quantity	Weighted-Average Price
SARs outstanding as of beginning of period	27,500		$	7.06	59,375	$	6.87
SARs exercised	(2,500	)	7.06		—	—
SARs outstanding as of end of period	25,000		$	7.06	59,375	$	6.87

The Company has 15,000 unexercised stock options outstanding as of March 31, 2013 that will expire if not exercised by May 16, 2013. These options are exercisable at an exercise price of $9.81. The compensation cost related to all stock options has been expensed in prior periods.

Additional Paid-In Capital

The following table presents a rollforward of the Company's changes in additional paid-in capital for the periods indicated:

	Three Months Ended
	March 31,
	2013			2012
Balance as of beginning of period	$	759,214		$	634,683
Common stock issuances:
DRIP issuances	3,224			37
ATM issuances	1,954			3,674
Secondary offering	—			119,859
Adjustments related to tax withholding for share-based compensation	(545		)	—
Amortization of restricted stock, net of additional grants	455			369
Capitalized expenses	(30		)	(119		)
Balance as of end of period	$	764,272		$	758,503

Accumulated Other Comprehensive Income

Accumulated other comprehensive income as of March 31, 2013 and December 31, 2012 is comprised of the following items:

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	March 31, 2013			December 31, 2012
Available for sale investments:
Unrealized gains	$	112,641		$	104,870
Unrealized losses	(15,888		)	(12,623		)
	96,753			92,247
Hedging instruments:
Unrealized losses	(35,196		)	(39,736		)
Accumulated other comprehensive income	$	61,557		$	52,511

Due to the Company’s REIT status, the items comprising other comprehensive income do not have related tax effects.

NOTE 11 – COMMITMENTS AND CONTINGENCIES

The Company records accruals for certain outstanding legal proceedings, investigations or claims when it is probable that a liability will be incurred and the amount of the loss can be reasonably estimated. The Company evaluates, on a quarterly basis, developments in legal proceedings, investigations and claims that could affect the amount of any accrual, as well as any developments that would make a loss contingency both probable and reasonably estimable. When a loss contingency is not both probable and reasonably estimable, the Company does not accrue the loss. However, if the loss (or an additional loss in excess of the accrual) is at least a reasonable possibility and material, then the Company discloses a reasonable estimate of the possible loss or range of loss, if such reasonable estimate can be made. If the Company cannot make a reasonable estimate of the possible material loss, or range of loss, then that fact is disclosed.

The Company and its subsidiaries are parties to various legal proceedings, including those described below.  Although the ultimate outcome of these legal proceedings cannot be ascertained at this time, and the results of legal proceedings cannot be predicted with certainty, the Company believes, based on current knowledge, that the resolution of any of these proceedings, including those described below, will not have a material effect on the Company’s consolidated financial condition or liquidity.  However, the resolution of any of the proceedings described below could have a material impact on consolidated results of operations or cash flows in a given future reporting period as the proceedings are resolved.

One of the Company's subsidiaries, GLS Capital, Inc. (“GLS”), and the County of Allegheny, Pennsylvania ("Allegheny County") are defendants in a class action lawsuit filed in 1997 in the Court of Common Pleas of Allegheny County, Pennsylvania (the “Court”).  Between 1995 and 1997, GLS purchased from Allegheny County delinquent property tax lien receivables for properties located in the county.  The plaintiffs in this matter alleged that GLS improperly recovered or sought recovery for certain fees, costs, interest, and attorneys' fees and expenses in connection with GLS' collection of the property tax lien receivables.   The Court granted class action status and defined the class to include only owners of real estate in Allegheny County who paid an attorneys' fee between 1996 and 2003 in connection with the forced collection of delinquent property tax receivables by GLS (generally through the initiation of a foreclosure action).  Amendments to the statute that governs the collection of delinquent tax liens in Pennsylvania, related case law, and GLS' filing of one or more successful motions for summary judgment resulted in the dismissal of certain claims against GLS and narrowed the issues being litigated to whether attorneys' fees and related expenses charged by GLS in connection with the collection of the receivables were reasonable.  Such attorneys' fees and lien costs were assessed by GLS in its collection efforts pursuant to the prevailing Allegheny County ordinance.  On April 23, 2012, as a result of a petition to discontinue filed by the plaintiffs, the Court dismissed the remaining claims against GLS. Plaintiffs subsequently appealed the dismissal to the Pennsylvania Commonwealth Court of Appeals. The claims made by plaintiffs on appeal include only the legality of charging and recovering attorneys' fees and tax lien revival and assignment costs from the class members. Plaintiffs have not enumerated their damages in this matter.

The Company, GLS, and Allegheny County are named defendants in a putative class action lawsuit filed in June 2012 in the Court of Common Pleas of Allegheny County, Pennsylvania. The lawsuit relates to the activities of GLS in Allegheny County related to the purchase and collection of delinquent property tax lien receivables discussed above. The purported class in this action consists of owners of real estate in Allegheny County whose property is or has been subject to a tax lien filed by Allegheny County that Allegheny County either retained or sold to GLS and who were billed by Allegheny County or GLS for attorneys'

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fees, interest, and certain other fees and who sustained economic damages on and after August 14, 2003. The putative class allegations are that Allegheny County, GLS, and the Company violated the class's constitutional due process rights in connection with delinquent tax collection efforts. There are also allegations that amounts recovered from the class by GLS and / or Allegheny County are an unconstitutional taking of private property.  The claims against the Company are solely based upon its ownership of GLS. The complaint requests that the Court order GLS to account for amounts alleged to have been collected in violation of the putative class members' rights and create a constructive trust for the return of such amounts to members of the purported class. The same class previously filed substantially the same lawsuit in 2004 against GLS and Allegheny County (ACORN v. County of Allegheny and GLS Capital, Inc.), and GLS's Motion for Summary Judgment is pending in that action.  The Company believes the claims are without merit and intends to defend against them vigorously in this matter.

The Company and DCI Commercial, Inc. ("DCI"), a former affiliate of the Company and formerly known as Dynex Commercial, Inc., are appellees (or respondents) in the matter of Basic Capital Management, Inc. et al.  (collectively, “BCM” or the “Plaintiffs”) versus DCI et al. currently pending in state court in Dallas, Texas.  The matter was initially filed in the state court in Dallas County, Texas in April 1999 against DCI, and in March 2000, BCM amended the complaint and added the Company as a defendant. Following a trial court decision in favor of both the Company and DCI, Plaintiffs appealed, seeking reversal of the trial court's judgment and rendition of judgment against the Company for alleged breach of loan agreements for tenant improvements in the amount of $250. Plaintiffs also sought reversal of the trial court's judgment and rendition of judgment against DCI in favor of BCM under two mutually exclusive damage models, for $2,200 and $25,600, respectively, related to the alleged breach by DCI of a $160,000 “master” loan commitment. Plaintiffs also sought reversal and rendition of a judgment in their favor for attorneys' fees in the amount of $2,100. Alternatively, Plaintiffs sought a new trial. On February 13, 2013, the Fifth Circuit Court of Appeals in Dallas, Texas (the “Fifth Circuit”) ruled on Plaintiff's appeal, affirming the previous decision of no liability with respect to the Company, and reversing the previous decision of no liability with respect to DCI relating to the $160,000 “master” loan commitment. The Fifth Circuit ordered a new trial to determine the amount of attorneys' fees and prejudgment and post-judgment interest due to Plaintiffs and reinstated the $25,600 damage award against DCI. The Fifth Circuit's decision appears to permit Plaintiffs to recover the costs of their appeal from both the Company and DCI. The Company and DCI have filed a motion for rehearing with the Fifth Circuit on the issue of the costs. As part of the motion for rehearing, DCI also challenged the $25,600 damage award and the decision regarding attorneys' fees. Management believes the Company will not be obligated for any amounts that may ultimately be awarded against DCI.

NOTE 12 – SUBSEQUENT EVENTS

Management has evaluated events and circumstances occurring as of and through the date this Quarterly Report on Form 10-Q was filed with the SEC and made available to the public and has determined that there have been no significant events or circumstances that qualify as a "recognized" subsequent event as defined by ASC Topic 855.

Management has determined that the following significant event(s), which occurred subsequent to March 31, 2013 and before the date this Quarterly Report on Form 10-Q was filed with the SEC and made available to the public, qualify as "nonrecognized" subsequent events as defined by ASC Topic 855:

On April 19, 2013, the Company closed an offering of 2,250,000 shares of 7.625% Series B Cumulative Redeemable Preferred Stock, par value of $0.01 per share and liquidation preference $25.00 per share, which includes 250,000 shares issued pursuant to an option to purchase additional shares that was exercised by the underwriters. The Company received net proceeds before expenses of $54,478, including the additional proceeds from the underwriters' overallotment option which was fully exercised. The Company anticipates using the proceeds to acquire additional investments consistent with its investment strategy and for general corporate purposes, which may include, among other things, repayment of maturing obligations, capital expenditures and working capital.

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ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following discussion should be read in conjunction with our unaudited financial statements and the accompanying notes included in Item 1. “Financial Statements” in this Quarterly Report on Form 10-Q and in our Annual Report on Form 10-K for the year ended December 31, 2012. References herein to “Dynex,” the “Company,” “we,” “us,” and “our” include Dynex Capital, Inc. and its consolidated subsidiaries, unless the context otherwise requires. In addition to current and historical information, the following discussion and analysis contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These statements relate to our future business, financial condition or results of operations. For a description of certain factors that may have a significant impact on our future business, financial condition or results of operations, see “Forward-Looking Statements” at the end of this discussion and analysis.

EXECUTIVE OVERVIEW

Company Overview

We are an internally managed mortgage real estate investment trust, or mortgage REIT, which invests in mortgage assets on a leveraged basis. Our common stock is traded on the New York Stock Exchange ("NYSE") under the symbol "DX" and our 8.50% Series A Cumulative Redeemable Preferred Stock (the "Series A Preferred Stock") is traded on the NYSE under the symbol "DXPRA". Subsequent to the date of this Form 10-Q, we issued shares of 7.625% Series B Cumulative Redeemable Preferred Stock "the Series B Preferred Stock") which is traded on the NYSE under the symbol "DXPRB". Our objective is to provide attractive risk-adjusted returns to our shareholders over the long term that are reflective of a leveraged, high quality fixed income portfolio with a focus on capital preservation.  We seek to provide returns to our shareholders through regular quarterly dividends and through capital appreciation.

We were formed in 1987 and commenced operations in 1988.  Beginning with our inception through 2000, our operations largely consisted of originating and securitizing various types of loans, principally single-family and commercial mortgage loans and manufactured housing loans.  Since 2000, we have been an investor in Agency and non-Agency mortgage-backed securities (“MBS”). Agency MBS consist of residential MBS (“RMBS”) and commercial MBS (“CMBS”), which come with a guaranty of principal payment by an agency of the U.S. government or a U.S. government-sponsored entity such as Fannie Mae and Freddie Mac.  Non-Agency MBS (also consisting of RMBS and CMBS) have no such guaranty of payment.

Our primary source of income is net interest income, which is the excess of the interest income earned on our investments over the cost of financing these investments.  We invest our capital pursuant to our operating policies as approved by our Board of Directors which include an investment management policy and investment risk policy. Our diversified investment strategy permits investment in Agency MBS and investment grade non-Agency MBS, and since 2008 our investments have been in higher credit quality, shorter duration investments.  We also believe that our shorter duration strategy will provide less volatility in our results and in our book value per common share than strategies which invest in longer duration assets that may be more exposed to interest rate risk. Investments considered to be of higher credit quality have less or limited exposure to loss of principal while investments which have shorter durations have less or limited exposure to changes in interest rates. The target asset allocation for the Company is 60% in Agency MBS and 40% in non-Agency MBS though our actual asset allocation will depend on a variety of factors including, but not limited to, the risk-adjusted returns of these investments, their perceived liquidity and their availability.

RMBS. The Company's RMBS investments currently consist predominantly of Agency RMBS though the Company has owned substantial amounts of non-Agency RMBS in the past. Agency RMBS include hybrid Agency adjustable-rate mortgage loans ("ARMs") and Agency ARMs.  Hybrid Agency ARMs are MBS collateralized by hybrid adjustable-rate mortgage loans which are loans that have a fixed rate of interest for a specified period (typically three to ten years) and which then adjust their interest rate at least annually to an increment over a specified interest rate index as further discussed below.  Agency ARMs are MBS collateralized by adjustable-rate mortgage loans which have interest rates that generally will adjust at least annually to an increment over a specified interest rate index.  Agency ARMs also include hybrid Agency ARMs that are past their fixed-rate periods or within twelve months of their initial reset period. The Company may also invest in fixed-rate Agency RMBS from time to time. Additionally, the Company invests in non-Agency RMBS, the majority of which are rated as investment grade. These investments generally resemble similar types of Agency ARMs, but lack a guaranty of principal payment by an agency of the U.S. government or a U.S. government-sponsored entity.

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Interest rates on the adjustable-rate mortgage loans collateralizing hybrid Agency ARMs, Agency ARMs, and non-Agency ARMs are based on specific index rates, such as the London Interbank Offered Rate, or LIBOR, the one-year constant maturity treasury rate, or CMT, the Federal Reserve U.S. 12-month cumulative average one-year CMT, or MTA, or the 11th District Cost of Funds Index, or COFI.  These loans will typically have interim and lifetime caps on interest rate adjustments, or interest rate caps, limiting the amount that the rates on these loans may reset in any given period.

CMBS. The Company's Agency and non-Agency CMBS are collateralized by first mortgage loans and are comprised of substantially fixed-rate securities. A substantial portion of the CMBS owned by the Company is collateralized by loans secured by multifamily properties. Typically these loans have some form of prepayment protection provisions (such as prepayment lock-out) or prepayment compensation provisions (such as yield maintenance or prepayment penalty).  Yield maintenance and prepayment penalty requirements are intended to create an economic disincentive for the loans to prepay. Amounts required to be paid decline over time however, and as loans age, interest rates decline, or market values of the collateral supporting the loan increase, prepayment penalties may not serve as a meaningful economic disincentive to the borrower.

CMBS IO. A portion of the Company's Agency and non-Agency CMBS also include interest only securities ("IOs") which represent the right to receive excess interest payments (but not principal cash flows) based on the underlying unpaid principal balance of the underlying pool of mortgage loans. As these securities have no principal associated with them, the interest payments received are based on the unpaid principal balance (often referred to as the notional amount) of the underlying pool of mortgage loans. IO securities generally have prepayment protection in the form of lock-outs, prepayment penalties, or yield maintenance associated with the underlying loans.

Factors that Affect Our Results of Operations and Financial Condition

The performance of our investment portfolio will depend on many factors, many of which are beyond our control. These factors include, but are not limited to, interest rates, trends of interest rates, the relative steepness of interest rate curves, prepayment rates on our investments, competition for investments, and economic conditions and their impact on the credit performance of our investments. In addition, the performance of our investment portfolio and the availability of investments at acceptable return levels is influenced by actions taken by, and policy measures of, the U.S. government, including the Federal Housing Finance Administration and the U. S. Department of the Treasury (the "Treasury"), and actions taken by and policy measures of the U.S. Federal Reserve.

In addition, our business model may be impacted by other factors such as the availability and cost of financing and the state of the overall credit markets.  Reductions in the availability of financing for our investments could significantly impact our business and force us to sell assets that we otherwise would not sell, potentially at losses or at amounts below their true fair value. Other factors also impacting our business include changes in regulatory requirements, including requirements to qualify for registration under the Investment Company Act of 1940 and REIT requirements.

Investing in mortgage-related securities on a leveraged basis subjects us to a number of risks including interest rate risk, prepayment and reinvestment risk, credit risk, market value risk and liquidity risk, which are discussed in "Liquidity and Capital Resources" within this Item 2 as well as in Item 1A, "Risk Factors" of Part I, and in Item 7A, "Quantitative and Qualitative Disclosures about Market Risk" of Part II of our Annual Report on Form 10-K for the year ended December 31, 2012. Please see these Items for detailed discussion of these risks and the potential impact on our results of operations and financial condition.

Highlights of the First Quarter of 2013

During the first quarter of 2013, we reported net income of $18.4 million, or $0.34 per common share versus $18.3 million, or $0.34 per common share for the fourth quarter of 2012, and our return on average common equity remained consistent with fourth quarter of 2012 at 13.0%. Our net interest income increased to $22.5 million for the first quarter of 2013 compared to $21.1 million for the fourth quarter of 2012 due to lower amortization premium expense on Agency RMBS and prepayment penalties received on our Agency CMBS IO.

Although our net interest income increased, our net interest spread declined to 1.89% for the first quarter of 2013 from 1.93% for the fourth quarter of 2012. This decline in net interest spread is due to our higher cost of funds in the first quarter of

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2013. Our higher cost of funds is related to the increase in interest rate swap expense from the $250 million in forward starting interest rate swaps that were entered into during 2012 and which became effective during the first quarter of 2013.

The following table summarizes the average annualized yield by type of MBS investment for the first quarter of 2013 and for each of the preceding four quarters:

	Three Months Ended
	March 31, 2013	December 31, 2012	September 30, 2012	June 30, 2012	March 31, 2012
Average annualized yields:
RMBS	2.05%	2.09%	2.17%	2.36%	2.73%
CMBS	4.73%	4.81%	4.88%	4.87%	4.99%
CMBS IO	4.61%	4.67%	5.08%	5.56%	5.99%
All other investments	5.36%	5.08%	5.31%	4.97%	4.13%
Costs of financing	(1.15)%	(1.11)%	(1.11)%	(1.11)%	(1.17)%
Net interest spread	1.89%	1.93%	2.00%	2.18%	2.41%

The average balance of our investment portfolio was $4,098.7 million during the first quarter of 2013, a slight decline versus $4,117.5 million for the fourth quarter of 2012. Our average balance declined because the majority of our investment purchases for the first quarter of 2013 were made late in the quarter, and securities pending settlement of $197.8 million as of March 31, 2013 are not included in the average balance for the three months ended March 31, 2013.

Although we have targeted an investment allocation of 60% Agency MBS and 40% non-Agency MBS and loans, our Agency MBS allocation in recent quarters has increased outside of this range due to attractive investment opportunities in Agency CMBS IO. The following table provides our asset allocation as of March 31, 2013 and as of the end of each of the four preceding quarters:

	March 31, 2013	December 31, 2012	September 30, 2012	June 30, 2012	March 31, 2012
Agency MBS	84.9%	83.6%	84.6%	82.1%	81.1%
Non-Agency MBS	13.6%	14.6%	13.6%	15.4%	14.2%
Other investments	1.4%	1.8%	1.8%	2.5%	4.7%

Over the last twelve months, the Company has increased its investment in CMBS and CMBS IO. We believe that CMBS and CMBS IO provide attractive total return opportunities, particularly relative to Agency RMBS. In recent months, however, we have started to see the supply of these securities diminish due to increasing demand, and so we have been deploying our existing capital, as well as the proceeds of our Series B Preferred Stock issued in April 2013, primarily in Agency RMBS. We continue to view CMBS and CMBS IO as attractive despite the diminishing availability of supply and the resulting decline in the yield on these securities.

We earned a return on average common equity of 13.0%, consistent with the fourth quarter of 2012. Our shareholders' equity increased to $633.3 million as of March 31, 2013, or $10.50 per common share, from $616.7 million, or $10.30 per common share as of December 31, 2012. The increase in shareholders' equity since December 31, 2012 resulted from a net increase in accumulated other comprehensive income of $9.0 million and our net income in excess of dividends declared. The increase in accumulated other comprehensive income was due primarily to an increase in the unrealized gains on our CMBS IO resulting from tightening spreads during the first quarter of 2013 and a decline in the liability for our hedging swaps related to an increase in rates during the first quarter of 2013.

Trends and Recent Market Impacts

There are certain conditions and prospective trends in the marketplace that have impacted our current financial condition and results of operations and which may continue to impact us in the future. For additional information, please refer to "Trends

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and Recent Market Impacts" within Part II, Item 7, "Management's Discussion and Analysis of Financial Condition and Results of Operations" within our Annual Report on Form 10-K for the year ended December 31, 2012. The following provides a discussion of those conditions and trends discussed in that Annual Report on Form 10-K which have had significant developments during the first quarter of 2013, or are new conditions and trends that are important to our financial condition and results of operations.

The Federal Open Market Committee ("FOMC") continues its purchase of U.S. Treasury and agency mortgage-backed mortgage securities, and in its press release on May 1, 2013, indicated for the first time that it will increase or decrease its purchases to maintain appropriate policy accommodation as the outlook for the labor market or inflation changes. Market participants generally view that the FOMC is indicating that it may increase its purchases given the recent weakness in economic data. While the FOMC is not purchasing assets that we are currently buying and thus is not a direct competitor, its participation in the markets reduces the overall availability of all assets and keeps interest rates low. The FOMC's actions therefore will continue to pressure reinvestment rates and prepayment rates on our Agency RMBS.

The Commodity Futures Trading Commission ("CFTC") has determined that mortgage REITs are commodity pool operators ("CPOs") since mortgage REITs typically use derivative instruments such as interest rate swaps to hedge their exposure to fluctuations in interest rates. Even though the CFTC has exempted mortgage REITs from registration as a CPO provided that they meet certain conditions, mortgage REITs are required to register and clear all interest rate swaps entered into after June 10, 2013 on an approved exchange. We are in the process of registering to clear interest rate swaps entered into after that date with an approved futures clearing merchant. Preliminarily, we expect the cost of using interest rate swaps to significantly increase as a result of this requirement. As such, we may begin using other instruments after June 10, 2013 to hedge our interest rate exposure. The use of these new instruments could be less effective for hedging interest rate risk than interest rate swaps and result in additional operational complexity.

CRITICAL ACCOUNTING POLICIES

The discussion and analysis of our financial condition and results of operations are based in large part upon our consolidated financial statements, which have been prepared in accordance with GAAP.  The preparation of these financial statements requires management to make estimates, judgments and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses and disclosure of contingent assets and liabilities.  We base these estimates and judgments on historical experience and assumptions believed to be reasonable under current facts and circumstances.  Actual results, however, may differ from the estimated amounts we have recorded.

Critical accounting policies are defined as those that require management's most difficult, subjective or complex judgments, and which may result in materially different results under different assumptions and conditions. Our accounting policies that require the most significant management estimates, judgments, or assumptions and considered most critical to our results of operations or financial position relate to amortization of investment premiums, other-than-temporary impairments, and fair value measurements.  Our critical accounting policies are discussed in our Annual Report on Form 10-K for the year ended December 31, 2012 under “Management’s Discussion and Analysis of Financial Condition and Results of Operations – Critical Accounting Policies”.  There have been no significant changes in our critical accounting policies during the three months ended March 31, 2013.

FINANCIAL CONDITION

The following discussion addresses items from our unaudited consolidated balance sheet that had significant activity during the past three months and should be read in conjunction with "Notes to the Unaudited Consolidated Financial Statements" contained within Item 1 of this Quarterly Report on Form 10-Q.

Agency MBS

 Activity related to our Agency MBS for the three months ended March 31, 2013 is as follows:

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(amounts in thousands)	RMBS			CMBS			CMBS IO			Total
Beginning balance as of January 1, 2013	$	2,571,337		$	354,142		$	567,180		$	3,492,659
Purchases	547,526			4,021			62,955			614,502
Principal payments	(211,997		)	(1,348		)	—			(213,345		)
Sales	—			(1,960		)	(18,233		)	(20,193		)
Change in net unrealized gain	(3,701		)	(1,860		)	8,219			2,658
Net amortization	(8,144		)	(971		)	(18,732		)	(27,847		)
Ending balance as of March 31, 2013	$	2,895,021		$	352,024		$	601,389		$	3,848,434

As of March 31, 2013, 66% of our Agency portfolio was comprised of Fannie Mae investments with the balance being comprised of 28% Freddie Mac investments and 6% Ginnie Mae investments compared to 65% Fannie Mae investments and 29% Freddie Mac investments with the remaining 6% in Ginnie Mae investments as of December 31, 2012. As of March 31, 2013, 75% of our Agency MBS investments are variable-rate MBS with the remainder fixed-rate MBS compared to 73% variable-rate Agency MBS as of December 31, 2012.

The following table presents the weighted average coupon (“WAC”) by weighted average months-to-reset (“MTR”) for the variable-rate portion of our Agency RMBS portfolio based on par value as of March 31, 2013 and December 31, 2012:

	March 31, 2013				December 31, 2012
(amounts in thousands)	Par Value		WAC		Par Value		WAC
0-12 MTR	$	488,356	3.53	%	$	523,711	3.94	%
13-24 MTR	224,005		3.98	%	105,372		4.41	%
25-36 MTR	286,418		3.70	%	194,814		3.82	%
37-60 MTR	512,505		3.96	%	471,159		4.02	%
61-84 MTR	549,347		3.24	%	620,099		3.28	%
Over 84 MTR	651,893		3.36	%	490,759		3.40	%
	$	2,712,524	3.57	%	$	2,405,914	3.69	%

As of March 31, 2013, approximately 96% of our variable-rate Agency RMBS portfolio resets based on one-year LIBOR plus a weighted average rate of 1.80%, which is relatively unchanged from the characteristics of that portion of our portfolio as of December 31, 2012. Because we typically finance these investments using 30-day repurchase agreement financing for which we pay interest expense based on one-month LIBOR plus a spread, our net interest income is sensitive to changes in the interest rate environment. This sensitivity is discussed further in Item 3 "Quantitative and Qualitative Disclosures About Market Risk" of this Quarterly Report on Form 10-Q.

During the first quarter of 2013, we received principal payments (both scheduled and unscheduled) on our Agency RMBS of $212.0 million. In general, the constant prepayment rate, or CPR, on our Agency RMBS has increased over the last year given the low interest rate environment and policies of the U.S. government to encourage refinancing of higher coupon loans. While CPRs have increased over the last year, they remain below our modeled expectations. Below is a table of the CPRs on our Agency RMBS for the periods indicated:

	Three Months Ended
	March 31, 2013		December 31, 2012		September 30, 2012		June 30, 2012		March 31, 2012
Agency RMBS	24.8	%	24.3	%	23.4	%	20.8	%	21.4	%

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Non-Agency MBS

Activity related to our non-Agency MBS for the three months ended March 31, 2013 is as follows:

(amounts in thousands)	RMBS			CMBS			CMBS IO			Total
Beginning balance as of January 1, 2013	$	11,038		$	486,342		$	113,942		$	611,322
Purchases	—			21,479			—			21,479
Principal payments	(1,358		)	(2,613		)	—			(3,971		)
Sales	—			(9,573		)	—			(9,573		)
Change in net unrealized gain	(123		)	402			1,462			1,741
Net accretion (amortization)	23			238			(3,998		)	(3,737		)
Ending balance as of March 31, 2013	$	9,580		$	496,275		$	111,406		$	617,261

The weighted average months to maturity for all of our non-Agency CMBS (including IO securities) as of March 31, 2013 was 79 months with 70% having origination dates of 2009 or later, 11% between 2000 and 2005, and the remainder prior to 2000.

Our non-Agency CMBS investments consist principally of securities rated 'A' or higher and are primarily Freddie Mac Multifamily K Certificates on pools of recently originated multifamily mortgage loans. These certificates are not guaranteed by Freddie Mac, and, therefore, repayment is based solely on the performance of the underlying pool of loans. These loans have prepayment lock-out provisions which reduce the risk of early repayment of our investment.

The following table presents the fair value, net unrealized gain and related borrowings as of March 31, 2013 for our non-Agency CMBS and CMBS IO investments by credit rating:

	Non-Agency CMBS						Non-Agency CMBS IO
(amounts in thousands)	Fair Value		Net Unrealized Gain		Related Borrowings		Fair Value		Net Unrealized Gain		Related Borrowings
AAA	$	153,348	$	8,811	$	117,564	$	111,406	$	6,476	$	85,720
AA	60,429		5,456		48,875		—		—		—
A	239,413		25,868		194,901		—		—		—
Below A/Not Rated	43,085		175		31,269		—		—		—
	$	496,275	$	40,310	$	392,609	$	111,406	$	6,476	$	85,720

The following table presents the geographic diversification of the collateral underlying our non-Agency CMBS by the top 5 states as of March 31, 2013:

(amounts in thousands)	Market Value of Collateral		Percentage
Florida	$	72,929	13.4	%
California	69,771		12.8	%
Texas	67,954		12.5	%
New York	36,131		6.6	%
North Carolina	27,441		5.0	%
Remaining states (not exceeding 4.7% individually)	270,798		49.7	%
	$	545,024	100.0	%

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Repurchase Agreements

Repurchase agreements increased a net $144.1 million from December 31, 2012 to March 31, 2013 due to additional borrowings to finance our purchases of investments during the three months ended March 31, 2013. Please refer to Note 6 of the Notes to the Unaudited Consolidated Financial Statements contained within this Quarterly Report on Form 10-Q as well as “Liquidity and Capital Resources” contained within this Item 2 for additional information relating to our repurchase agreements.

Supplemental Information

The tables below present the allocation of our shareholders' equity to our assets and liabilities. The allocation of shareholders' equity is determined by subtracting the associated financing for each asset from that asset's carrying basis:

	As of March 31, 2013
(amounts in thousands)	Asset Carrying Basis		Associated Financing(1)/ Liability Carrying Basis		Allocated Shareholders’ Equity			% of Shareholders’ Equity
Agency MBS	$	3,848,434	$	3,397,273	$	451,161		71.2	%
Non-Agency MBS	617,261		499,642		117,619			18.6	%
Securitized mortgage loans	64,825		37,864		26,961			4.3	%
Other investments	822		—		822			0.1	%
Derivative assets (liabilities)	—		37,687		(37,687		)	(6.0	)%
Cash and cash equivalents	44,129		—		44,129			7.0	%
Other assets/other liabilities	52,642		22,349		30,293			4.8	%
	$	4,628,113	$	3,994,815	$	633,298		100.0	%

	As of December 31, 2012
(amounts in thousands)	Asset Carrying Basis		Associated Financing(1)/ Liability Carrying Basis		Allocated Shareholders’ Equity			% of Shareholders’ Equity
Agency MBS	$	3,492,659	$	3,057,634	$	435,025		70.5	%
Non-Agency MBS	611,322		493,188		118,134			19.2	%
Securitized mortgage loans	70,823		43,810		27,013			4.4	%
Other investments	858		—		858			0.1	%
Derivative assets (liabilities)	—		42,537		(42,537		)	(6.9	)%
Cash and cash equivalents	55,809		—		55,809			9.1	%
Other assets/other liabilities	48,758		26,350		22,408			3.6	%
	$	4,280,229	$	3,663,519	$	616,710		100.0	%

 (1) Associated financing related to investments includes repurchase agreements as well as payables pending for unsettled trades as of the date indicated, and non-recourse collateralized financing.  Associated financing for derivative instruments represents the fair value of the interest rate swap agreements in a liability position.

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The tables below present the allocation of our invested capital by type of investment:

	As of March 31, 2013
(amounts in thousands)	Asset Carrying Basis		Associated Financing		Invested Capital Allocation		% of Allocated Invested Capital
RMBS and loans	$	2,944,582	$	2,710,712	$	233,870	39.2	%
CMBS and loans	873,965		661,613		212,352		35.6	%
CMBS IO	712,795		562,454		150,341		25.2	%
	$	4,531,342	$	3,934,779	$	596,563	100.0	%

	As of December 31, 2012
(amounts in thousands)	Asset Carrying Basis		Associated Financing		Invested Capital Allocation		% of Allocated Invested Capital
RMBS and loans	$	2,624,897	$	2,405,131	$	219,766	37.8	%
CMBS and loans	869,643		658,399		211,244		36.4	%
CMBS IO	681,122		531,102		150,020		25.8	%
	$	4,175,662	$	3,594,632	$	581,030	100.0	%

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RESULTS OF OPERATIONS

Three Months EndedMarch 31, 2013 Compared to Three Months Ended March 31, 2012

During the first quarter of 2013, net interest income was positively impacted by $1.2 million in prepayment penalties received on CMBS IO, by lower Agency RMBS premium amortization expense resulting from lower than expected prepayments, and by a reduction in forecasted prepayments on certain high premium segments of our portfolio. We also recorded gains in the quarter ended March 31, 2013 as we repositioned our portfolio by selling securities that had unacceptable risk-reward profiles or had met our investment objectives. The low interest rate, low volatility environment continues to benefit our earnings by keeping our funding costs low and our book value per common share through higher fair values on our investments. Continued lower rates however will pressure profitability over time as reinvestment rates are generally lower than existing investment yields.

Net Interest Income - Agency MBS

The following table provides a summary of the results of our Agency MBS investments and related financings by type of collateral for the periods indicated:

	Three Months Ended
	March 31,
	2013								2012
(amounts in thousands)	Income (Expense) (1)			Average Balance(2)			Effective Yield (Rate)(3)		Income (Expense) (1)			Average Balance(2)			Effective Yield (Rate)(3)
Agency RMBS	$	13,417		$	2,564,732		2.04	%	$	12,540		$	1,734,254		2.70	%
Financing	(4,192		)	(2,394,199		)	(0.70	)%	(2,849		)	(1,547,538		)	(0.73	)%
Net interest income/spread	$	9,225					1.34	%	$	9,691					1.97	%
Agency CMBS	$	3,033		$	331,780		3.60	%	$	2,737		$	298,258		3.63	%
Financing	(1,653		)	(292,479		)	(2.26	)%	(1,195		)	(244,929		)	(1.93	)%
Net interest income/spread	$	1,380					1.34	%	$	1,542					1.70	%
Agency CMBS IO	$	7,718		$	560,329		4.59	%	$	1,649		$	147,275		4.89	%
Financing	(1,460		)	(441,646		)	(1.32	)%	(376		)	(118,956		)	(1.25	)%
Net interest income/spread	$	6,258					3.27	%	$	1,273					3.64	%
Total Agency MBS	$	24,168		$	3,456,841		2.60	%	$	16,926		$	2,179,787		2.98	%
Total financing	(7,305		)	(3,128,324		)	(0.93	)%	(4,420		)	(1,911,423		)	(0.91	)%
Total net interest income/spread: Agency MBS	$	16,863					1.67	%	$	12,506					2.07	%

(1) Expense amounts and financing rates include allocated interest rate expense on interest rate swaps designated as hedges.

(2) Average balances are calculated as a simple average of the daily amortized cost basis and exclude unrealized gains and losses as well as securities pending settlement.

(3) Effective yields (rates) are based on annualized income (expense) amounts. Recalculation of effective yields and rates may not be possible using data provided because certain income and expense items of a one-time nature are not annualized for the calculation of effective yields or rates.  An example of such a one-time item is the retrospective adjustments of discount and premium amortizations arising from adjustments of effective interest rates.

The increase in our interest income from Agency MBS for the three months ended March 31, 2013 compared to the three months ended March 31, 2012 is due to the growth of our Agency MBS portfolio from our purchases of $2,120.4 million of Agency MBS during the last twelve months. Our net interest spread, however, declined due to lower yields on the Agency RMBS purchased

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during the last twelve months compared to the yields on our Agency MBS during the three months ended March 31, 2012 as well as resets in the coupon rates over the last twelve months on our Agency ARMs. These lower yields reflect lower market rates and lower weighted average coupons particularly on our Agency RMBS. Our Agency CMBS IO investments positively impacted our Agency MBS effective yield by 0.38% for the three months ended March 31, 2013 even though yields on Agency CMBS IO declined relative to the same period in 2012. Purchases of higher-priced Agency CMBS IOs since March 31, 2012 also increased our net premium amortization as a percentage of the average amortized cost of our Agency MBS by 0.31% to 0.81% for the three months ended March 31, 2013.

Our repurchase agreement financing costs for Agency MBS has increased $2.4 million to $4.3 million for the three months ended March 31, 2013 compared to the three months ended March 31, 2012. This increase is due to our increased use of repurchase agreement financing to fund our Agency MBS purchases over the past twelve months. In addition, the average rate on the repurchase agreements has increased to 0.55% for the three months ended March 31, 2013 compared to 0.39% for the three months ended March 31, 2012. This higher cost of financing is due to CMBS IO investments added to our portfolio since March 31, 2012 as well as the overall higher market rates on repurchase agreements in 2013 versus 2012. Repurchase agreement rates are higher in general as lenders began passing through increased regulatory compliance costs and also due to competition for financing.

Our financing costs for Agency MBS shown in the table above include interest expense of $3.0 million and $2.5 million for the three months ended March 31, 2013 and three months ended March 31, 2012, respectively, from our interest rate swap agreements designated as cash flow hedges. The net notional balance of interest rate swap agreements as of March 31, 2013 has increased 29% compared to the three months ended March 31, 2012. The combined weighted average fixed rate we pay has decreased slightly from 1.62% as of March 31, 2012 to 1.51% for interest rate swaps as of March 31, 2013.

Net Interest Income – Non-Agency MBS

The following table provides a summary of the results of our non-Agency MBS investments and related financings by type of collateral for the periods indicated:

	Three Months Ended
	March 31,
	2013								2012
(amounts in thousands)	Income (Expense) (1)			Average Balance(2)			Effective Yield/Rate(3)		Income (Expense) (1)			Average Balance(2)			Effective Yield/Rate(3)
Non-Agency RMBS	$	140		$	10,024		5.61	%	$	228		$	15,670		5.69	%
Financing	(34		)	(7,376		)	(1.84	)%	(53		)	(12,256		)	(1.85	)%
Net interest income/spread	$	106					3.77	%	$	175					3.84	%
Non-Agency CMBS	$	6,466		$	455,334		5.55	%	$	6,103		$	352,351		6.14	%
Financing	(2,629		)	(379,394		)	(2.82	)%	(2,165		)	(305,184		)	(2.73	)%
Net interest income/spread	$	3,837					2.73	%	$	3,938					3.41	%
Non-Agency CMBS IO	$	1,265		$	106,954		4.68	%	$	1,206		$	53,960		8.99	%
Financing	(347		)	(86,407		)	(1.61	)%	(174		)	(49,150		)	(1.40	)%
Net interest income/spread	$	918					3.07	%	$	1,032					7.59	%
Total non-Agency MBS	$	7,871		$	572,312		5.39	%	$	7,537		$	421,981		6.49	%
Total financing	(3,010		)	(473,177		)	(2.58	)%	(2,392		)	(366,590		)	(2.52	)%
Total net interest income/spread: non-Agency MBS	$	4,861					2.81	%	$	5,145					3.97	%

(1) Expense amounts and financing rates include allocated interest rate expense on interest rate swaps designated as hedges.

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(2) Average balances are calculated as a simple average of the daily amortized cost basis and exclude unrealized gains and losses as well as securities pending settlement.

(3) Effective yields (rates) are based on annualized income (expense) amounts. Recalculation of effective yields and rates may not be possible using data provided because certain income and expense items of a one-time nature are not annualized for the calculation of effective yields or rates.  An example of such a one-time item is the retrospective adjustments of discount and premium amortizations arising from adjustments of effective interest rates.

Our interest income from non-Agency MBS increased $0.3 million for the three months ended March 31, 2013 compared to the three months ended March 31, 2012 due to a higher average balance as a result of purchases of $224.7 million of these investments subsequent to March 31, 2012. Our effective yield earned on our non-Agency MBS portfolio, however, has decreased 1.10% compared to the three months ended March 31, 2012. As with Agency MBS, this is primarily the result of purchasing non-Agency MBS at higher premiums and with lower weighted average coupons over the last twelve months.

The majority of our interest expense on non-Agency MBS is from the repurchase agreements used to finance these purchases. Our interest expense from repurchase agreements collateralized by non-Agency MBS increased to $1.7 million for the three months ended March 31, 2013 compared to $1.2 million for the three months ended March 31, 2012. This increase is driven primarily by the increased volume of repurchase agreement borrowings used to finance our non-Agency purchases. The average financing rate for our repurchase agreements collateralized by non-Agency MBS was 1.46%, a slight increase from the average rate of 1.44% for the three months ended March 31, 2012.

Interest expense shown in the table above for non-Agency CMBS of $3.0 million and $2.4 million for the three months ended March 31, 2013 and March 31, 2012, respectively, includes $1.1 million and $0.7 million, respectively, of interest expense for interest rate swaps related to repurchase agreement financing for non-Agency CMBS. Interest rate swap expense increased total financing costs for non-Agency MBS by 0.99% for the three months ended March 31, 2013 compared to 0.86% for the three months ended March 31, 2012.

Gain on Sale of Investments, Net

The following table summarizes information related to our gain on sale of investments, net for the periods indicated.

	Three Months Ended
	2013					2012
(amounts in thousands)	Amortized cost basis sold		Gain (loss) on sale, net			Amortized cost basis sold		Gain on sale, net
Type of Investment
Agency CMBS	$	1,960	$	(8	)	$	—	$	—
Agency CMBS IO	18,233		353			—		—
Non-Agency CMBS	9,573		1,046			—		—
Freddie Mac Senior Unsecured Reference Notes	—		—			49,218		351
	$	29,766	$	1,391		$	49,218	$	351

Fair Value Adjustments, Net

For the three months ended March 31, 2013, our fair value adjustments, net of consisted primarily of unrealized gains related to changes in fair value of our Agency CMBS designated as trading securities, a result comparable to that of the same period ended March 31, 2012.

General and Administrative Expenses

General and administrative expenses for the three months ended March 31, 2013 increased approximately $0.7 million compared to the three months ended March 31, 2012. The majority of this increase is due to increased incentive compensation

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expenses. General and administrative expenses as a percentage of shareholder's equity decreased to 2.4% for the three months ended March 31, 2013 compared to 2.8% for the three months ended March 31, 2012.

LIQUIDITY AND CAPITAL RESOURCES

 Our primary sources of liquidity include borrowings under repurchase arrangements, monthly principal and interest payments we receive on our investments, and cash.  Additional sources may also include proceeds from the sale of investments, equity offerings, issuances of collateralized financings, and payments received from counterparties from interest rate swap agreements.  We use our liquidity to fund our investment purchases and other operating costs, to pay down borrowings, to make payments to counterparties as required under interest rate swap agreements, and to pay dividends on our common stock.

Our available liquid assets as of March 31, 2013 were $178.2 million compared to $186.0 million as of December 31, 2012. As of March 31, 2013, our liquid assets consist of unrestricted cash and cash equivalents of $44.1 million and $134.1 million in unencumbered Agency MBS. Unencumbered Agency MBS are considered part of our liquid assets as we may pledge them to lenders and interest rate swap counterparties if we experience a margin call (which is discussed below). We monitor our current and forecasted available liquidity on a daily basis. Our liquid assets may fluctuate from period to period based on our investment activities and whether we have recently raised, but not yet deployed, equity capital. From a trend standpoint, we have modestly increased our leverage over the last several quarters which will reduce our available liquid assets. However, we will maintain sufficient liquidity based on the sensitivity analysis and debt-to-equity requirements discussed below, to support our operations and meet our anticipated liquidity needs.

We perform sensitivity analysis on our liquidity based on changes in the value of our investments due to changes in interest rates, market credit spreads, lender haircuts and prepayment speeds. We also closely manage our debt-to-invested equity ratio (which is equal to the ratio of debt versus equity financing of any investment) as part of our liquidity management process.  Our current operating policies provide that recourse borrowings including repurchase agreements used to finance investments will be in the range of three (3) to ten (10) times our invested equity capital.  Our current operating policies also limit our overall debt-to-invested equity ratio to no more than seven (7) times our shareholders' equity for the entire company and provide different limits by investment type. Our maximum target leverage is up to ten (10) times our invested capital for Agency RMBS, eight (8) times for Agency CMBS and five (5) times for Agency CMBS IO. With respect to non-Agency MBS, our maximum target leverage is up to five (5) times our invested capital in non-Agency CMBS and RMBS, and up to four (4) times our invested capital in non-Agency CMBS IO. The maximum targets represent fixed limits for leveraging our investment capital. Based on our investment portfolio as of March 31, 2013, our overall current leverage target is approximately six (6) times our invested capital and we were slightly above that target as we had pre-invested a portion of the proceeds from our Series B Preferred Stock offering which closed in April 2013. The leverage target may change in the future as the portfolio mix changes. We may also increase our leverage target by holding less capital against certain investments in our portfolio in the future (therefore effectively increasing the leverage on those investments). In addition, because non-Agency MBS are less liquid and their fair values are more volatile than Agency MBS, we are more conservative in leveraging non-Agency MBS as evidenced by a lower targeted debt-to-equity ratio.

In general, we have had ample sources of liquidity to fund our activities and operations. Liquidity in the repurchase agreement market has steadily improved since the financial crisis in 2008 and 2009. However, credit markets remain susceptible to exogenous shocks. Further, regulatory reform could impact the availability of credit.  In times of severe market stress, repurchase agreement availability could rapidly be reduced and the terms on which we can borrow could be materially altered. Competition from other REITs, banks, hedge funds, and the federal government for capacity with our repurchase agreement lenders could also reduce our repurchase agreement availability.  While we do not anticipate such events in the near term, a reduction in our borrowing capacity could force us to sell assets in order to repay our lenders or could otherwise restrict our ability to operate our business.

Over the course of the last several years we have raised significant amounts of common and preferred shareholders' equity. Depending on our liquidity levels, the condition of the credit markets, and other factors, we may from time to time consider the issuance of debt, equity, or other securities, the proceeds of which could provide additional liquidity for our operations. While we will attempt to avoid dilutive or otherwise costly issuances, depending on market conditions, in order to manage our liquidity we could be forced to issue equity or debt securities which are dilutive to our capital base or our profitability.

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Repurchase Agreements

The following table presents certain quantitative information regarding our short-term borrowings (excluding interest rate swap expense) under repurchase agreements for the periods indicated:

	Three Months Ended
	March 31,
(amounts in thousands)	2013			2012
Average balance outstanding	$	3,612,319		$	2,348,048
Weighted average borrowing rate (excludes interest rate swap expense)	0.68		%	0.57		%
Maximum balance outstanding	$	3,752,000		$	2,686,232

Our repurchase agreement borrowings generally have a term of between one and three months and carry a rate of interest based on a spread to an index such as LIBOR.  Repurchase agreements are renewable at the discretion of our lenders and do not contain guaranteed roll-over terms.  Given the short-term and uncommitted nature of most of our repurchase agreement financing, we attempt to maintain unused capacity under our existing repurchase agreement credit lines with multiple counterparties which helps protect us in the event of a counterparty's failure to renew existing repurchase agreements either with favorable terms or at all. As of March 31, 2013, we had 29 repurchase agreement counterparties and $3.7 billion in repurchase agreement borrowings outstanding with 20 of those counterparties at a weighted average borrowing rate of 0.65%.  As of December 31, 2012, we had $3.6 billion outstanding with 19 counterparties at a weighted average borrowing rate of 0.70%.

The following table discloses our repurchase agreement amounts outstanding and the value of the related collateral pledged by geographic region of our counterparties as of March 31, 2013:

(amounts in thousands)	Repurchase Agreement Amount Outstanding		Market Value of Collateral Pledged
North America	$	2,361,788	$	2,625,254
Asia	705,481		755,967
Europe	641,542		717,130
	$	3,708,811	$	4,098,351

For our repurchase agreement borrowings, we are required to post and maintain margin to the lender (i.e., collateral in excess of the repurchase agreement financing) in order to support the amount of the financing.  This excess collateral is often referred to as a "haircut" (and which we also refer to as equity at risk). The amount of haircut posted, particularly for non-Agency MBS, is based on the quality and type of collateral being pledged. Our weighted average haircut has decreased from 7.4% as of December 31, 2012 to 7.3% as of March 31, 2013 for repurchase agreements collateralized by Agency MBS and from 19.5% to 19.1%, respectively, for repurchase agreements collateralized by non-Agency MBS. We have not otherwise experienced any changes in haircuts by our lenders due to market conditions, credit risk, or otherwise.

As the collateral pledged is Agency MBS and non-Agency MBS, the value of the collateral can fluctuate with changes in market conditions. If the fair value of the collateral falls below the initial haircut amount, the lender has the right to demand additional margin, or collateral, to increase the haircut back to the initial amount. These demands are typically referred to as "margin calls". There is no minimum amount of collateral value decline required before the lender could initiate a margin call, and we typically will experience margin calls for downward fluctuations in collateral values. Declines in the value of investments occur for any number of reasons including but not limited to changes in interest rates, changes in ratings on an investment, changes in actual or perceived liquidity of the investment, or changes in overall market risk perceptions.  Additionally, values in Agency RMBS will also decline from the payment delay feature of those securities.  Agency RMBS have a payment delay feature whereby Fannie Mae and Freddie Mac announce principal payments on Agency RMBS but do not remit the actual principal payments and interest for 20 days in the case of Fannie Mae and 40 days in the case of Freddie Mac.  Because these securities are financed with repurchase agreements, the repurchase agreement lender generally makes a margin call for an amount equal to the product of their advance rate on the repurchase agreement and the announced principal payments on the Agency RMBS.  This causes a temporary use of our liquidity to meet the margin call until we receive the principal payments and interest 20 to 40 days later. 

The counterparties with whom we have the greatest amounts of equity at risk may vary significantly during any given period due to the short-term and generally uncommitted nature of the repurchase agreement borrowings. Equity at risk is defined

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as the amount pledged as collateral to the repurchase agreement counterparty in excess of the repurchase agreement amount outstanding. The following tables present the five counterparties with whom the Company had the greatest amounts of equity at risk as of March 31, 2013 and as of December 31, 2012:

	March 31, 2013
(amounts in thousands)	Repurchase Agreement Amount Outstanding		Equity at risk
Well Fargo Bank, NA and affiliates	$	364,505	$	105,456
Credit Suisse Securities LLC	230,992		49,961
JP Morgan Securities, LLC	255,252		40,922
Bank of America Securities LLC	267,720		38,349
Nomura Securities International, Inc.	205,622		23,177
Remaining counterparties	2,384,164		131,676
	$	3,708,255	$	389,541

	December 31, 2012
(amounts in thousands)	Repurchase Agreement Amount Outstanding		Equity at risk
Well Fargo Bank, NA and affiliates	$	365,470	$	110,708
Bank of America Securities LLC	287,319		37,623
Credit Suisse Securities LLC	245,220		52,037
Nomura Securities International, Inc.	206,201		21,266
JP Morgan Securities, LLC	199,389		36,097
Remaining counterparties	2,260,529		113,645
	$	3,564,128	$	371,376

Our repurchase agreement counterparties require us to comply with various operating and financial covenants. The financial covenants include requirements that we maintain minimum shareholders' equity (usually a set minimum, or a percentage of the highest amount of shareholders' equity since the date of the agreement), maximum decline in shareholders' equity (expressed as a percentage decline in any given period), and limits on maximum leverage (as a multiple of shareholders' equity). Operating requirements include, among other things, requirements to maintain our status as a REIT and to maintain our listing on the NYSE. Violations of one or more of these covenants could result in the lender declaring an event of default which would result in the termination of the repurchase agreement and immediate acceleration of amounts due thereunder. In addition, some of the agreements contain cross default features, whereby default with one lender simultaneously causes default under agreements with other lenders.  Violations could also restrict us from paying dividends or engaging in other transactions that are necessary for us to maintain our REIT status.

We monitor and evaluate on an ongoing basis the impact these customary financial covenants may have on our operating and financing flexibility. Currently, we do not believe we are subject to any covenants that materially restrict our financing flexibility, nor do we believe that we are in danger of breaching any of these covenants.

Derivatives

Our interest rate swap agreements require us to post initial margin at inception and variation margin based on subsequent changes in the value of the swap. The collateral posted as margin typically is in the form of cash, Agency MBS, or Treasury securities. Generally, as interest rates decline we will have to post collateral with the counterparty, and, as interest rates increase, the counterparty will deposit collateral with us or return our collateral (typically when the amount of collateral required to be posted exceeds a certain dollar amount). As of March 31, 2013, we had Agency MBS with a fair value of $40.6 million posted as credit support under the agreements and no collateral had been posted to us.

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Repurchase Agreement Reform

In addition to market related issues, the Federal Reserve Bank of New York along with certain industry participants have issued a report that makes recommendations for reforming the tri-party repurchase agreement market to address potential systemic risk concerns associated with its infrastructure. The report focuses primarily on the settling and clearing mechanisms of the repurchase agreement market and the two primary clearing banks, J.P. Morgan and Bank of New York Mellon. It is unclear if these recommendations or any subsequent recommendations will have any impact on our ability to borrow using repurchase agreements or increase the cost of borrowing under these agreements.

Dividends

As a REIT, we are required to distribute to our shareholders amounts equal to at least 90% of our REIT taxable income for each taxable year after consideration of our tax NOL carryforwards.  We generally fund our dividend distributions through our cash flows from operations.  If we make dividend distributions in excess of our operating cash flows during the period, whether for purposes of meeting our REIT distribution requirements or other strategic reasons, those distributions are generally funded either through our existing cash balances or through the return of principal from our investments (either through repayment or sale).  As of December 31, 2012, we had an estimated NOL carryfoward of $135.9 million. We may utilize our NOL carryforward to offset our REIT distribution requirements, subject to limitations as discussed further below.  This would allow us to retain capital and increase our liquidity by reducing or eliminating our dividend payout to common shareholders.

As a result of our common stock offering in February 2012, we have incurred an “ownership change” under Section 382. In general, if a company incurs an ownership change under Section 382, the company's ability to utilize an NOL carryforward to offset its taxable income (and, in our case, after taking the REIT distribution requirements into account) becomes limited to a certain amount per year. For purposes of Section 382, an ownership change occurs if over a rolling three-year period, the percentage of the company stock owned by 5% or greater shareholders has increased by more than 50 percentage points over the lowest percentage of common stock owned by such shareholders during the three year period. Based on management's analysis and expert third-party advice, which necessarily includes certain assumptions regarding the characterization under Section 382 of our use of capital raised by us, we determined that the ownership change under Section 382 will limit our ability to use our NOL carryforward to offset our taxable income to an estimated maximum amount of $13.4 million per year. The NOL carryforward expires substantially beginning in 2020.

Contractual Obligations

The following table summarizes our contractual obligations by payment due date as of March 31, 2013:

(amounts in thousands)	Payments due by period
Contractual Obligations:(1)	Total		< 1 year		1-3 years		3-5 years		> 5 years
Securitization financing (2)	$	28,950	$	7,494	$	14,599	$	3,824	$	3,033
Operating lease obligations	326		200		43		45		38
Total	$	29,276	$	7,694	$	14,642	$	3,869	$	3,071

(1) Amounts presented exclude interest on the related obligations.

(2) Represents financing that is non-recourse to us as the debt is payable solely from loans and securities pledged as collateral.  Payments due by period were estimated based on the principal repayments forecasted for the underlying loans and securities, substantially all of which is used to repay the associated financing outstanding.

We also have contractual commitments under interest rate swap agreements for a total notional amount of $1,437.0 million as of March 31, 2013 which have a weighted average rate of 1.54% and a weighted average term of 39 months.

During the first quarter of 2013, we entered into a subscription agreement to become a limited partner in a partnership established to invest in residential mortgage loans. We funded the initial $1.0 million capital contribution, and we have a commitment to make additional capital contributions of up to $4.0 million upon the request of the general partner, which is subject to certain conditions including the identification of acceptable investments that meet certain risk and return requirements.

Off-Balance Sheet Arrangements

As of March 31, 2013, we do not believe that any off-balance sheet arrangements exist that are reasonably likely to have a material effect on our current or future financial condition, results of operations, liquidity or capital resources.

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RECENT ACCOUNTING PRONOUNCEMENTS

Please refer to Note 1 of the Notes to the Unaudited Consolidated Financial Statements for information on recent accounting updates to the ASC which have been issued but are not yet effective.

FORWARD-LOOKING STATEMENTS

Certain written statements in this Quarterly Report on Form 10-Q that are not historical facts constitute “forward-looking statements” within the meaning of Section 27A of the 1933 Act and Section 21E of the Exchange Act.  Statements in this report addressing expectations, assumptions, beliefs, projections, future plans and strategies, future events, developments that we expect or anticipate will occur in the future, and future operating results are forward-looking statements.  Forward-looking statements are based upon management’s beliefs, assumptions, and expectations as of the date of this report regarding future events and operating performance, taking into account all information currently available to us, and are applicable only as of the date of this report.  Forward-looking statements generally can be identified by use of words such as “believe”, “expect”, “anticipate”, “estimate”, “plan” “may”, “will”, “intend”, “should”, “could” or similar expressions.  We caution readers not to place undue reliance on our forward-looking statements, which are not historical facts and may be based on projections, assumptions, expectations, and anticipated events that do not materialize.  Except as required by law, we are not obligated to, and do not intend to, update or revise any forward-looking statement whether as a result of new information, future events, or otherwise.

We make forward-looking statements in this Quarterly Report on Form 10-Q regarding:

• Our business and investment strategy including our ability to generate acceptable risk-adjusted returns and our target investment allocations;

• Our financing and hedging strategy, including our target leverage ratios, anticipated trends in financing costs, and changes to government regulation of hedging instruments and our use of these instruments;

• Our investment portfolio composition and target investments;

• Our investment portfolio performance, including the fair value, yields, and forecasted prepayment speeds of our investment portfolio;

• Our liquidity and ability to access financing, and the anticipated availability and cost of financing;

• Our use of and restrictions on using our tax NOL carryfoward;

• The status of pending litigation;

• Estimates of future interest expenses related to the Company's derivatives designated as hedging instruments;

• The status of regulatory rule-making or review processes and the status of reform efforts in the repurchase agreement financing market;

• Market, industry and economic trends; and

• Interest rates.

Forward-looking statements are inherently subject to risks, uncertainties and other factors that could cause our actual results to differ materially from historical results or from any results expressed or implied by such forward-looking statements.  Not all of these risks and other factors are known to us.  New risks and uncertainties arise over time, and it is not possible to predict those events or how they may affect us. The projections, assumptions, expectations or beliefs upon which the forward-looking statements are based can also change as a result of these risks or other factors.  If such a risk or other factor materializes in future periods, our business, financial condition, liquidity and results of operations may vary materially from those expressed or implied in our forward-looking statements.

While it is not possible to identify all factors, some of the factors that may cause actual results to differ from historical results or from any results expressed or implied by forward-looking statements, or that may cause our projections, assumptions, expectations or beliefs to change, include the following:

• the risks and uncertainties referenced in our Annual Report on Form 10-K for the year ended December 31, 2012, particularly those set forth under Part I, Item 1A, “Risk Factors”;

• our ability to find suitable reinvestment opportunities;

• changes in economic conditions;

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• changes in interest rates and interest rate spreads, including the repricing of interest-earning assets and interest-bearing liabilities;

• our investment portfolio performance particularly as it relates to cash flow, prepayment rates and credit performance;

• adverse reactions in financial markets related to the budget deficit or national debt of the United States government; potential or actual default by the United States government on Treasury securities; and potential or actual downgrades to the sovereign credit rating of the United States;

• the cost and availability of financing;

• the cost and availability of new equity capital;

• changes in our use of leverage;

• the quality of performance of third-party servicer providers of our loans and loans underlying our securities;

• the level of defaults by borrowers on loans we have securitized;

• changes in our industry;

• increased competition;

• changes in government regulations affecting our business;

• changes in the repurchase agreement financing markets and other credit markets;

• changes to the market for interest rate swaps and other derivative instruments;

• government initiatives to support the U.S financial system and U.S. housing and real estate markets;

• GSE reform or other government policies and actions; and

• ownership shifts under Section 382 that further limit the use of our tax NOL carryforward.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

We strive to manage various risks inherent in our business strategy, which include interest rate, prepayment, reinvestment, market value, credit, and liquidity risks.  We do not seek to avoid risk completely, but we attempt to manage these risks while earning an acceptable risk-adjusted return for our shareholders.

Interest Rate Risk

Investing in interest-rate sensitive investments on a leveraged basis subjects us to interest rate risk. Interest rate risk arises primarily because of the mismatch between interest-rate reset dates or maturity of our assets and our liabilities during a specified period. The costs of our borrowings are generally based on prevailing market rates and reset more frequently than interest rates on our assets. In addition, our adjustable rate assets may have limits or caps on the amount that an interest rate may reset while our liabilities do not have rate reset caps. During a period of rising interest rates (particularly short term rates), our borrowing costs will increase faster than our asset yields, negatively impacting our net interest income. The amount of the impact will depend on the composition of portfolio and on the effectiveness of our hedge instruments at the time, as well as the magnitude and the duration of the increase in interest rates. Rising interest rates will also negatively impact the market value of our investments which reduces our book value. See "Market Value Risk" below for further discussion of the risks to the market value of our investments.

We attempt to manage our exposure to changes in interest rates by investing in instruments that have shorter maturities or interest reset dates, entering into hedging transactions and by managing our investment portfolio within interest rate risk tolerances set by our Board of Directors.  Our current goal is to maintain a net portfolio duration (a measure of interest rate risk) within a range of 0.5 to 1.5 years.  Our portfolio duration has drifted outside of our target range at various times due to changes in market conditions, changes in actual or expected prepayment rates on our investments, changes in interest rates, changes in market spreads, and activity in our investment portfolio.  In addition, duration is driven by model inputs, and in the case of Agency RMBS, the most important inputs include anticipated prepayment speeds. Estimates of prepayment speeds can vary significantly by investor for the same security and therefore estimates of security and portfolio duration can vary significantly.

We typically have used interest rate swaps to help manage our interest rate risk and, where practical, we will attempt to fund our assets with financings that have similar terms as the related investments.  Since interest rate swaps fix the rate of interest for the notional amount of the swap, such instruments generally result in interest savings in a rising interest rate environment when the current market interest rate we receive on the swap (which generally is equal to one-month LIBOR) rises higher than the stated

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fixed rate we pay on the notional amount for each interest rate swap agreement.  Alternatively, a declining or stable interest rate environment generally results in interest expense equal to the difference between the stated fixed rate we pay less the current market interest rate we receive.      

Our adjustable rate investments have interest rates which are predominantly based on upon six-month and one-year LIBOR and contain periodic (or interim) and lifetime interest rate caps which limit the amount by which the interest rate may reset on the investment. The following table presents information about the lifetime and interim interest rate caps on our adjustable-rate Agency MBS portfolio as of March 31, 2013:

Lifetime Interest Rate Caps			Interim Interest Rate Caps
	% of Total			% of Total
>7.0% to 10.0%	82.0	%	1.0%	0.9	%
>10.0% to 11.0%	14.4	%	2.0%	15.5	%
>11.0% to 12.1%	3.6	%	5.0%-6.0%	83.6	%
	100.0	%		100.0	%

Effect of Changes in Interest Rates on Net Interest Income and Market Value.  The table below shows the sensitivity of our projected net interest income and the projected market value of our investments (for those carried at fair value on our balance sheet, including all interest rate swaps) as they existed as of March 31, 2013 based on an instantaneous parallel shift in market interest rates as set forth in the table. The "percentage change in projected net interest income" and the "percentage change in projected market value" included in the table below are based on the projected net interest income on and projected market value of the investment portfolio over the next twenty-four (24) months. Apart from the changes in interest rates, the net interest income projections are based upon a variety of other assumptions including investment prepayment speeds, credit performance, market credit spreads, and the availability of financing over the projected period.   The projections for market value are based on the same assumptions as projected net interest income except they do not not assume any change in market credit spreads.

The table below assumes a static portfolio and does not consider any reinvestment or rebalancing of the investment portfolio or additional hedging activity by the Company.  Changes in types of investments, changes in future interest rates, changes in credit spreads, changes in the shape of the yield curve, the availability of financing and/or the mix of our investments and financings may cause actual results to differ significantly from the modeled results.  In addition, given the low interest rate environment existing as of March 31, 2013, the impact of increasing interest rates on market expectations of future changes in interest rates may cause declines in the market value of our investments (from widening credit spreads) that are not modeled in the table below. Other factors will also impact the table below, such as whether we raise additional capital or change our investment allocations or strategies. Accordingly, interest income may differ from that shown below, and such difference may be material. There can be no assurance that assumed events used for the model below will occur, or that other events will not occur, that will affect the outcomes; therefore, the tables below and all related disclosures constitute forward-looking statements.

	March 31, 2013
Basis Point Change in Interest Rates	Percentage change in projected net interest income(1)	Percentage change in projected market value (2)
+100	(6.4)%	(1.7)%
+50	(3.2)%	(0.8)%
0	—%	—%
-50	4.5%	0.8%
-100	6.4%	1.7%

(1) Includes changes in interest expense from the financings for our investments as well as our derivative instruments.

(2) Includes changes in market value of our investments and derivative instruments, but excludes changes in market value of our financings because they are not carried at fair value on our balance sheet.

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Prepayment and Reinvestment Risk

Prepayment risk is the risk of an early, unscheduled return of principal on an investment.  We are subject to prepayment risk from premiums paid on investments which we acquire. In general, purchase premiums on our investments are amortized as a reduction in interest income using the effective yield method under GAAP, adjusted for the actual and anticipated prepayment activity of the investment.  An increase in the actual or expected rate of prepayment will typically accelerate the amortization of purchase premiums, thereby reducing the yield/interest income earned on such assets.

Prepayment risk results from both our RMBS and CMBS investments. Loans underlying our CMBS and CMBS IO securities generally have some form of prepayment protection provisions (such as prepayment lock-outs) or prepayment compensation provisions (such as yield maintenance or prepayment penalties).  Without these prepayment protection provisions, prepayment risk on CMBS IO would be particularly acute as the investments are all premium. Yield maintenance and prepayment penalty requirements are intended to create an economic disincentive for the loans to prepay; however, the amount of the prepayment penalty required to be paid may decline over time, and as loans age, interest rates decline, or market values of collateral supporting the loan increase, prepayment penalties may lessen as an economic disincentive to the borrower over time. Generally our experience has been that prepayment lock-out and yield maintenance provisions result in stable prepayment performance from period to period. There are no prepayment protections, however, if the loan defaults and the loan is partially or wholly repaid earlier as a result of loss mitigation actions taken by the underlying loan servicer. Historically, our default experience on loans in CMBS and CMBS IO has been relatively low. Delinquencies as of the last reported date are less than 1% for our CMBS IO securities.

Loans underlying our RMBS do not have any specific prepayment protection. All of the loans underlying our RMBS are ARMs or Hybrid ARMs. Prepayments on these loans accelerate in a declining rate environment and as they near their initial reset date. Our prepayment models anticipate acceleration of prepayments in these events. To the extent the actual prepayments exceed our modeled prepayments, or if we change our future prepayment expectations, we will record adjustments to our premium amortization which may negatively impact our net interest income and could impact the market value of our RMBS.

Principal prepayments on our investments are influenced by changes in market interest rates and a variety of economic, geographic, and other factors beyond our control.  In addition, actions taken by the U.S. government could increase prepayments as discussed in "Trends and Recent Market Impacts" in Item 2 of this Quarterly Report on Form 10-Q as well as the same section in Item 7 of Part II of our Annual Report on Form 10-K for the year ended December 31, 2012.  

The following table discloses the net premium (discount) by months until interest rate reset as well as the net premium (discount) as a percentage of par value (or notional value in the case of CMBS IO) for the Agency and non-Agency MBS designated

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as AFS in our investment portfolio as of March 31, 2013 and December 31, 2012:     

(amounts in thousands)	March 31, 2013									December 31, 2012
Agency:	RMBS			CMBS			CMBS IO			RMBS			CMBS			CMBS IO
0-12 months to reset	$	34,642		$	—		$	—		$	35,675		$	—		$	—
Greater than 12 months to reset	123,576			—			—			101,505			—			—
Fixed rate	(13		)	21,562			576,161			(13		)	21,907			550,171
Total premium, net	$	158,205		$	21,562		$	576,161		$	137,167		$	21,907		$	550,171
Par/notional balance	$	2,732,173		$	280,842		$	10,873,160		$	2,425,826		$	280,602		$	10,059,495
Premium, net as a % of par value	5.8		%	7.7		%	5.3		%	5.7		%	7.8		%	5.5		%
Non-Agency:
0-12 months to reset	$	(364	)	$	—		$	—		$	(406	)	$	—		$	—
Fixed rate	(394		)	(16,685		)	104,930			(375		)	(17,313		)	108,928
Total (discount) premium, net	$	(758	)	$	(16,685	)	$	104,930		$	(781	)	$	(17,313	)	$	108,928
Par/notional balance	$	10,053		$	472,650		$	2,385,979		$	11,411		$	463,747		$	2,393,614
(Discount) premium, net as a % of par value	(7.5		)%	(3.5		)%	4.4		%	(6.8		)%	(3.7		)%	4.6		%

We seek to manage our prepayment risk by diversifying our investments, seeking investments which we believe will have superior prepayment performance, and investing in securities which have some sort of prepayment prohibition or yield maintenance (as is the case with CMBS and CMBS IO).

We are also subject to reinvestment risk as a result of the prepayment, repayment or sale of our investments.  Yields on assets in which we invest now are generally lower than yields on existing assets that we may sell or which may be repaid, due to lower overall interest rates and more competition for these as investment assets.  As a result, our interest income may decline in the future, thereby reducing earnings per share.  In order to maintain our investment portfolio size and our earnings, we need to reinvest our capital into new interest-earning assets.  If we are unable to find suitable reinvestment opportunities, interest income on our investment portfolio and investment cash flows could be negatively impacted.

Credit Risk

Credit risk is the risk that we will not receive all contractual amounts due on investments that we own due to default by the borrower or due to a deficiency in proceeds from the liquidation of the collateral securing the obligation.  We are also exposed to credit risk on investments that we own at a premium. For investments owned at premiums, defaults on the underlying loan typically result in the complete loss of any remaining unamortized premium we paid.

We attempt to mitigate our credit risk by purchasing Agency MBS and higher quality non-Agency MBS. Agency MBS have credit risk to the extent that Fannie Mae or Freddie Mac fails to remit payments on the MBS for which they have issued a guaranty of payment. Given the conservatorship of these entities and the continued support of the U.S. government, we believe this risk is low. For our non-Agency MBS, we will generally only purchase securities 'A'-rated or better by a least one of the nationally recognized statistical ratings organizations, with the concentration of these securities being rated 'AAA'. For securities, such as CMBS IOs, where we have a higher premium at risk, we seek to invest in securities where we are comfortable with the credit profile of the loans underlying the security.

The following table presents information on our non-Agency MBS by credit rating as of March 31, 2013:

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	March 31, 2013
(amounts in thousands)	CMBS		CMBS IOs		RMBS		Weighted average
AAA	$	153,348	$	111,406	$	8,542	44.3	%
AA	60,429		—		343		9.8	%
A	239,413		—		167		38.8	%
Below A or not rated	43,085		—		528		7.1	%

With respect to our securitized mortgage loans, these loans are well-seasoned, thereby lowering our average loan-to-value (“LTV”) ratio and decreasing our risk of loss.  Other efforts to mitigate credit risk include maintaining a risk management function that monitors and oversees the performance of the servicers of the mortgage loans, as well as providing an allowance for loan loss as required by GAAP.

Market Value Risk

Market value risk generally represents the risk of loss from the change in the value of a financial instrument due to fluctuations in interest rates and changes in the perceived risk in owning such financial instrument.  Securities in our investment portfolio are reflected at their estimated fair value, with the difference between amortized cost and estimated fair value reflected in accumulated other comprehensive income if the securities are deemed available for sale, or fair value, net in our statement of operations if the securities are viewed as trading. Regardless of how the investment is carried in our financial statements, we will monitor the change in its market value.  In particular, we will monitor changes in the value of investments collateralizing our repurchase agreements for liquidity management and other purposes, including maintaining appropriate collateral margins. The fair value of our securities fluctuates primarily due to changes in interest rates, changes in credit spreads (which represent the market's valuation of the perceived riskiness of assets relative to risk-free rates), changes in actual prepayments or expected prepayments, the perceived liquidity of the investment, and other factors. We attempt to manage market value risk by managing our exposure to these factors (although we do not actively attempt to manage market value risk from changes in credit spreads). For example, the types of derivative instruments we are currently using to hedge the interest rates on our debt tend to increase in value when our investment portfolio decreases in value, although not a one-to-one correlation.  See the analysis in the “Interest Rate Risk” section above, which presents the estimated change in our portfolio given changes in market interest rates.

Liquidity Risk

We have liquidity risk principally from the use of recourse repurchase agreements to finance our ownership of securities.  In general, our repurchase agreements provide a source of uncommitted short-term financing that finances a longer-term asset, thereby creating a mismatch between the maturity of the asset and of the associated financing.  Our repurchase agreements are renewable at the discretion of our lenders and do not contain guaranteed roll-over terms.  If we fail to repay the lender at maturity, the lender has the right to immediately sell the collateral and pursue us for any shortfall if the sales proceeds are inadequate to cover the repurchase agreement financing. In addition, repurchase agreements are collateral based and declines in the market value of our investments subject us to liquidity risk.

For further information, including how we attempt to mitigate liquidity risk and our liquidity position, please refer to “Liquidity and Capital Resources” in Item 2 of this Quarterly Report on Form 10-Q.

ITEM 4. CONTROLS AND PROCEDURES

Disclosure controls and procedures.

Our management evaluated, with the participation of our Principal Executive Officer and Principal Financial Officer, the effectiveness of our disclosure controls and procedures, as defined in Exchange Act Rule 13a-15(e), as of the end of the period covered by this report. Based on that evaluation, our Principal Executive Officer and Principal Financial Officer concluded that our disclosure controls and procedures were effective as of March 31, 2013 to ensure that information required to be disclosed in the reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the SEC’s rules and forms, and that such information is accumulated and communicated to our management, including

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our Principal Executive Officer and Principal Financial Officer, as appropriate, to allow timely decisions regarding required disclosure.

Changes in internal control over financial reporting.

Our management is also responsible for establishing and maintaining adequate internal control over financial reporting as defined in Exchange Act Rule 13a-15(f). There were no changes in our internal control over financial reporting during the three months ended March 31, 2013 that materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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PART II.                      OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

The Company records accruals for certain outstanding legal proceedings, investigations or claims when it is probable that a liability will be incurred and the amount of the loss can be reasonably estimated. The Company evaluates, on a quarterly basis, developments in legal proceedings, investigations and claims that could affect the amount of any accrual, as well as any developments that would make a loss contingency both probable and reasonably estimable. When a loss contingency is not both probable and reasonably estimable, the Company does not accrue the loss. However, if the loss (or an additional loss in excess of the accrual) is at least a reasonable possibility and material, then the Company discloses a reasonable estimate of the possible loss or range of loss, if such reasonable estimate can be made. If the Company cannot make a reasonable estimate of the possible material loss, or range of loss, then that fact is disclosed.

The Company and its subsidiaries are parties to various legal proceedings, including those described below.  Although the ultimate outcome of these legal proceedings cannot be ascertained at this time, and the results of legal proceedings cannot be predicted with certainty, the Company believes, based on current knowledge, that the resolution of any of these proceedings will not have a material adverse effect on the Company’s consolidated financial condition or liquidity.  However, the resolution of any of the proceedings described below could have a material impact on consolidated results of operations or cash flows in a given future reporting period as the proceedings are resolved.

One of the Company's subsidiaries, GLS Capital, Inc. (“GLS”), and the County of Allegheny, Pennsylvania ("Allegheny County") are defendants in a class action lawsuit filed in 1997 in the Court of Common Pleas of Allegheny County, Pennsylvania (the “Court”).  Between 1995 and 1997, GLS purchased from Allegheny County delinquent property tax lien receivables for properties located in the county.  The plaintiffs in this matter alleged that GLS improperly recovered or sought recovery for certain fees, costs, interest, and attorneys' fees and expenses in connection with GLS' collection of the property tax lien receivables.   The Court granted class action status and defined the class to include only owners of real estate in Allegheny County who paid an attorneys' fee between 1996 and 2003 in connection with the forced collection of delinquent property tax receivables by GLS (generally through the initiation of a foreclosure action).  Amendments to the statute that governs the collection of delinquent tax lien receivables in Pennsylvania, related case law, and GLS' filing of one or more successful motions for summary judgment resulted in the dismissal of certain claims against GLS and narrowed the issues being litigated to whether attorneys' fees and related expenses charged by GLS in connection with the collection of the receivables were reasonable.  Such attorneys' fees and lien costs were assessed by GLS in its collection efforts pursuant to the prevailing Allegheny County ordinance.  On April 23, 2012, as a result of a petition to discontinue filed by the plaintiffs, the Court dismissed the remaining claims against GLS. Plaintiffs subsequently appealed the dismissal to the Pennsylvania Commonwealth Court of Appeals. The claims made by plaintiffs on appeal include only the legality of charging and recovering attorneys' fees and tax lien revival and assignment costs from the class members. Plaintiffs have not enumerated their damages in this matter.

The Company, GLS, and Allegheny County are named defendants in a putative class action lawsuit filed in June 2012 in the Court of Common Pleas of Allegheny County, Pennsylvania. The lawsuit relates to the activities of GLS in Allegheny County related to the purchase and collection of delinquent property tax lien receivables discussed above. The purported class in this action consists of owners of real estate in Allegheny County whose property is or has been subject to a tax lien filed by Allegheny County that Allegheny County either retained or sold to GLS and who were billed by Allegheny County or GLS for attorneys' fees, interest, and certain other fees and who sustained economic damages on and after August 14, 2003. The putative class allegations are that Allegheny County, GLS, and the Company violated the class's constitutional due process rights in connection with delinquent tax collection efforts. There are also allegations that amounts recovered from the class by GLS and / or Allegheny County are an unconstitutional taking of private property.  The claims against the Company are solely based upon its ownership of GLS. The complaint requests that the Court order GLS to account for amounts alleged to have been collected in violation of the putative class members' rights and create a constructive trust for the return of such amounts to members of the purported class. The same class previously filed substantially the same lawsuit in 2004 against GLS and Allegheny County (ACORN v. County of Allegheny and GLS Capital, Inc.), and GLS's Motion for Summary Judgment is pending in that action.  The Company believes the claims are without merit and intends to defend against them vigorously in this matter.

46

The Company and DCI Commercial, Inc. ("DCI"), a former affiliate of the Company and formerly known as Dynex Commercial, Inc., are appellees (or respondents) in the matter of Basic Capital Management, Inc. et al.  (collectively, “BCM” or the “Plaintiffs”) versus DCI et al. currently pending in state court in Dallas, Texas.  The matter was initially filed in the state court in Dallas County, Texas in April 1999 against DCI, and in March 2000, BCM amended the complaint and added the Company as a defendant. Following a trial court decision in favor of both the Company and DCI, Plaintiffs appealed, seeking reversal of the trial court's judgment and rendition of judgment against the Company for alleged breach of loan agreements for tenant improvements in the amount of $0.3 million. Plaintiffs also sought reversal of the trial court's judgment and rendition of judgment against DCI in favor of BCM under two mutually exclusive damage models, for $2.2 million and $25.6 million, respectively, related to the alleged breach by DCI of a $160 million “master” loan commitment. Plaintiffs also sought reversal and rendition of a judgment in their favor for attorneys' fees in the amount of $2.1 million. Alternatively, Plaintiffs sought a new trial. On February 13, 2013, the Fifth Circuit Court of Appeals in Dallas, Texas (the “Fifth Circuit”) ruled on Plaintiff's appeal, affirming the previous decision of no liability with respect to the Company, and reversing the previous decision of no liability with respect to DCI relating to the $160 million “master” loan commitment. The Fifth Circuit ordered a new trial to determine the amount of attorneys' fees and prejudgment and post-judgment interest due to Plaintiffs and reinstated the $25.6 million damage award against DCI. The Fifth Circuit's decision appears to permit Plaintiffs to recover the costs of their appeal from both the Company and DCI. The Company and DCI have filed a motion for rehearing with the Fifth Circuit on the issue of the costs. As part of the motion for rehearing, DCI also challenged the $25.6 million damage award and the decision regarding attorneys' fees. Management believes the Company will not be obligated for any amounts that may ultimately be awarded against DCI.

ITEM 1A.    RISK FACTORS

Risks and uncertainties identified in our Forward-Looking Statements contained in this Quarterly Report on Form 10-Q together with those previously disclosed in the Annual Report on Form 10-K for the year ended December 31, 2012 or those that are presently unforeseen could result in significant adverse effects on our financial condition, results of operations and cash flows.  See “Forward-Looking Statements” contained in Part 1, Item 2, “Management’s Discussion and Analysis of Financial Condition and Results of Operations” within this Quarterly Report on Form 10-Q as well as Part I, Item 1A, “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2012 for additional risk factors.

ITEM 2.    UNREGISTERED SALES OF SECURITIES AND USE OF PROCEEDS

Issuer Purchases of Equity Securities

The following table summarizes repurchases of our common stock that occurred during the three months ended March 31, 2013:

	Total Number of Shares Purchased (1)	Average Price Paid per Share		Total Number of Share Purchased as Part of Publicly Announced Plans or Programs	Maximum Number (or Approximate Dollar Value) of Shares that May Yet Be Purchased Under the Plans or Programs
					($ in thousands)
January 1, 2013 - January 31, 2013	—	$	—	—	$	—
February 1, 2013 - February 28, 2013	33,498	10.15		—	—
March 1, 2013 - March 31, 2013	18,887	10.90		—	—
Total	52,385	$	10.42	—	$	—

(1) These shares were withheld from certain employees to satisfy tax withholding obligations arising upon the vesting of restricted shares.

47

ITEM 3.    DEFAULTS UPON SENIOR SECURITES

None.

ITEM 4.    MINE SAFETY DISCLOSURES

None.

ITEM 5.    OTHER INFORMATION

None.

ITEM 6.    EXHIBITS

Exhibit No.	Description
3.1	Restated Articles of Incorporation, effective July 9, 2008 (incorporated herein by reference to Exhibit 3.1 to Dynex’s Current Report on Form 8-K filed July 11, 2008).
3.1.1	Articles of Amendment to the Restated Articles of Incorporation, effective July 30, 2012 (incorporated herein by reference to Exhibit 3.1.1 to Dynex's Registration Statement on Form 8-A filed August 1, 2012).
3.1.2	Articles of Amendment to the Restated Articles of Incorporation, effective April 15, 2013 (incorporated herein by reference to Exhibit 3.1 to Dynex’s Current Report on Form 8-K filed April 16, 2013).
3.2	Amended and Restated Bylaws, effective August 1, 2012 (incorporated herein by reference to Exhibit 3.2 to Dynex’s Current Report on Form 8-K filed August 3, 2012).
3.2.1	Amendment to Bylaws of Dynex, effective as of June 5, 2013 (incorporated herein by reference to Exhibit 3.2.1 to Dynex’s Current Report on Form 8-K filed April 16, 2013).
10.26	Amendment to Restricted Stock Agreement for Byron L. Boston under the Dynex Capital, Inc. 2009 Stock and Incentive Plan, effective January 1, 2013 (filed herewith).
10.27	Underwriting Agreement, dated April 11, 2013, by and among Dynex Capital, Inc., J.P. Morgan Securities LLC, and Keefe, Bruyette & Woods, Inc. (incorporated herein by reference to Exhibit 1.1 to Dynex's Current Report on Form 8-K filed April 16, 2013).
31.1	Certification of principal executive officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (filed herewith).
31.2	Certification of principal financial officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (filed herewith).
32.1	Certification of principal executive officer and principal financial officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (filed herewith).
101	The following materials from Dynex Capital, Inc.'s Quarterly Report on Form 10-Q for the three months ended March 31, 2013, formatted in XBRL (Extensible Business Reporting Language), furnished herewith: (i) Consolidated Balance Sheets (unaudited), (ii) Consolidated Statements of Income (unaudited), (iii) Consolidated Statements of Comprehensive Income (unaudited), (iv) Consolidated Statements of Shareholder's Equity (unaudited), (v) Consolidated Statements of Cash Flows (unaudited), and (vi) Notes to Consolidated Financial Statements (unaudited).

48

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

		DYNEX CAPITAL, INC.
Date:	May 10, 2013	/s/ Thomas B. Akin
		Thomas B. Akin
		Chairman and Chief Executive Officer
		(Principal Executive Officer)
Date:	May 10, 2013	/s/ Stephen J. Benedetti
		Stephen J. Benedetti
		Executive Vice President, Chief Operating Officer and Chief Financial Officer
		(Principal Financial Officer)

49

XML

Repurchase Agreements Repurchase Agreements By Maturity Period (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Repurchase agreement, balance	$ 3,708,255	$ 3,564,128
Deferred Costs	(556)	(659)
Maturity up to 30 days [Member]
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Repurchase agreement, balance	1,030,894	622,957
Maturity 31 to 60 days [Member]
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Repurchase agreement, balance	1,333,963	1,263,105
Matuity 61 to 90 days [Member]
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Repurchase agreement, balance	969,050	298,660
Maturity over 90 days [Member]
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Repurchase agreement, balance	374,904	1,380,065
Repurchase Agreements [Member]
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Repurchase agreement, balance	$ 3,708,811	$ 3,564,787

XML

Commitments and Contingencies (Details) (Basic Capital Management, Inc et al [Member], DCI [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2013	Dec. 31, 2012
Loss Contingencies [Line Items]
Loss Contingency, Allegations		alleged breach by DCI of a $160,000 “master” loan commitment
Damages Sought, Alleged Breach of Agreement, Tenant Improvements [Member] | Pending Litigation [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value		$ 250
Damages Sought, Mutually Exclusive Model 1 [Member] | Pending Litigation [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value		2,200
Damages Sought, Mutually Exclusive Model 2 [Member] | Pending Litigation [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value		25,600
Damages Sought, Reimbursement of Attorneys' Fees [Member] | Pending Litigation [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value		2,100
Former affiliates [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Awarded, Value		25,600
Loss Contingency, Damages Appealed		25,600
Loss Contingency, Management's Assessment and Process	Management believes the Company will not be obligated for any amounts that may ultimately be awarded against DCI.
Former affiliates [Member] | Breach of Loan Agreements [Member]
Loss Contingencies [Line Items]
Loss Contingency, Loan Commitment, Default Amount		$ 160,000

XML

Shareholders' Equity (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Jun. 30, 2013	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Class of Stock [Line Items]
Preferred Stock, Dividends Per Share, Declared		$ 0.53125
Preferred Stock, Dividend Rate, Percentage	7.625%	8.50%
Shareholders' Equity, Common Stock [Roll Forward]
Balance at beginning of period	54,835,420	54,268,915	40,382,530
Common stock issued under DRIP		298,304	3,932
Common stock issued or redeemed under Stock and Incentive Plans		139,600	216,663
Common stock forfeited for tax withholding on share-based compensation		(52,385)	0
Balance at end of period		54,835,420	54,338,367
Proceeds from Issuance of Common Stock		$ 5,152	$ 123,733
Dividend reinvestment plan, shares authorized		3,000,000
Dividends declared per common share		$ 0.29	$ 0.28
Additional Paid in Capital [Abstract]
Additional Paid in Capital, Common Stock beginning of period	764,272	759,214	634,683
Additional Paid In Capital from DRIP issuances of common stock		3,224	37
Adjustments related to tax withholding for share-based compensation		545	0
Amortization of restricted stock, net of additional grants		455	369
Additional Paid in Capital, Capitalized expenses		(30)	(119)
Additional Paid in Capital, Common Stock, end of period		764,272	758,503
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated other comprehensive income, available-for-sale securities, gross unrealized gains		112,641		104,870
Accumulated other comprehensive income, available-for-sale securities, gross unrealized losses		(15,888)		(12,623)
Accumulated other comprehensive income from available-for-sale securities, net unrealized gain		96,753		92,247
Accumulated other comprehensive income from hedging instruments, unrealized losses		(35,196)		(39,736)
Accumulated other comprehensive income		61,557		52,511
Stock issued during period, remaining shares available, dividend reinvestment plan		2,688,216
At the market progam [Member]
Shareholders' Equity, Common Stock [Roll Forward]
Common stock issued under ATM program		180,986	402,494
Common stock issued via secondary offering		180,986	402,494
Additional Paid in Capital [Abstract]
Additional Paid in Capital from ATM issuances of common stock		1,954	3,674
Additional Paid in Capital from secondary offering of common stock		1,954	3,674
Secondary offering [Member]
Shareholders' Equity, Common Stock [Roll Forward]
Common stock issued under ATM program		0	13,332,748
Common stock issued via secondary offering		0	13,332,748
Additional Paid in Capital [Abstract]
Additional Paid in Capital from ATM issuances of common stock		0	119,859
Additional Paid in Capital from secondary offering of common stock		0	119,859
Common Stock [Member] | At the market progam [Member]
Shareholders' Equity, Common Stock [Roll Forward]
ATM program, authorized shares remaining		7,416,520
Proceeds from Issuance of Common Stock		1,956
Stock broker commission		$ 30

XML

Securitized Mortage Loans, Net Securitized Mortgage Loans, Net (Details) (USD $)	3 Months Ended
	Mar. 31, 2013		Dec. 31, 2012
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items]
Principal Amount Outstanding on Loans Securitized or Asset-backed Financing Arrangement	$ 65,740,000	[1]	$ 71,913,000	[1]
Unamortized (discount) premium, net for securitized mortgage loans	(655,000)		(651,000)
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount	65,085,000		71,262,000
Allowance for Loan Losses	260,000		439,000
Securitized mortgage loans, net	64,825,000		70,823,000
Commercial Portfolio Segment [Member]
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items]
Principal Amount Outstanding on Loans Securitized or Asset-backed Financing Arrangement	27,010,000	[1]	30,576,000	[1]
Unamortized (discount) premium, net for securitized mortgage loans	(1,229,000)		(1,267,000)
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount	25,781,000		29,309,000
Allowance for Loan Losses	145,000		150,000
Securitized mortgage loans, net	25,636,000		29,159,000
Mortgage Loans on Real Estate, Collections of Principal	3,565,000
Loan-to-value ratio, Percentage	50.00%		48.00%
Mortgage Loans on Real Estate, Principal Amount of Delinquent Loans	0
Residential Portfolio Segment [Member]
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items]
Principal Amount Outstanding on Loans Securitized or Asset-backed Financing Arrangement	38,730,000		41,337,000
Unamortized (discount) premium, net for securitized mortgage loans	574,000		616,000
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount	39,304,000		41,953,000
Allowance for Loan Losses	115,000		289,000
Securitized mortgage loans, net	39,189,000		41,664,000
Mortgage Loans on Real Estate, Collections of Principal	2,172,000
Loan-to-value ratio, Percentage	42.00%		43.00%
Mortgage Loans on Real Estate, Principal Amount of Delinquent Loans	$ 4,171,000		$ 3,380,000

[1] Includes funds held by trustees.

XML

Repurchase Agreements Repurchase Agreements (Tables)

3 Months Ended

Mar. 31, 2013

Transfers and Servicing [Abstract]

Schedule of Assets and Associated Liabilities Accounted for as Secured Borrowings [Table Text Block]

The following tables present the components of the Company’s repurchase agreements as of March 31, 2013 and December 31, 2012 by the fair value and type of securities pledged as collateral to the repurchase agreements:

	March 31, 2013
Collateral Type	Balance			Weighted Average Rate		Fair Value of Collateral Pledged
Agency RMBS	$	2,476,620		0.43	%	$	2,589,965
Agency CMBS	245,723			0.41	%	286,951
Agency CMBS IOs	477,290			1.20	%	599,086
Non-Agency RMBS	7,283			1.85	%	8,289
Non-Agency CMBS	392,609			1.32	%	475,709
Non-Agency CMBS IO	85,720			1.47	%	111,406
Securitization financing bonds	23,566			1.61	%	26,945
Deferred costs	(556		)	n/a		n/a
	$	3,708,255		0.65	%	$	4,098,351

	December 31, 2012
Collateral Type	Balance			Weighted Average Rate		Fair Value of Collateral Pledged
Agency RMBS	$	2,365,982		0.48	%	$	2,458,200
Agency CMBS	248,771			0.47	%	291,445
Agency CMBS IOs	443,540			1.22	%	565,494
Non-Agency RMBS	7,808			1.84	%	9,634
Non-Agency CMBS	382,352			1.34	%	465,306
Non-Agency CMBS IOs	88,221			1.46	%	113,942
Securitization financing bonds	28,113			1.64	%	31,483
Deferred costs	(659		)	n/a		n/a
	$	3,564,128		0.61	%	$	3,935,504

Repurchase Agreements, Original Maturity Schedule [Table Text Block]

 The following table provides a summary of the original maturities as of March 31, 2013 and December 31, 2012:

Original Maturity	March 31, 2013		December 31, 2012
30 days or less	$	1,030,894	$	622,957
31 to 60 days	1,333,963		1,263,105
61 to 90 days	969,050		298,660
Greater than 90 days	374,904		1,380,065
	$	3,708,811	$	3,564,787

XML

Fair Value of Financial Instruments Fair Value on a Recurring Basis (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities, at fair value	$ 4,267,917	$ 4,103,981
Derivative Liabilities	37,687	42,537
Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets carried at fair value	4,465,720	4,104,006
Derivative Liabilities	37,687	42,537
Total liabilities carried at fair value	37,687	42,537
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets carried at fair value	0	0
Derivative Liabilities	0	0
Total liabilities carried at fair value	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets carried at fair value	4,344,726	3,998,761
Derivative Liabilities	37,687	42,537
Total liabilities carried at fair value	37,687	42,537
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets carried at fair value	120,994	105,245
Derivative Liabilities	0	0
Total liabilities carried at fair value	0	0
Agency MBS [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities, at fair value	3,848,434	3,492,659
Agency MBS [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities, at fair value	0	0
Agency MBS [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities, at fair value	3,848,434	3,492,659
Agency MBS [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities, at fair value	0	0
Non-Agency MBS [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities, at fair value	617,261	611,322
Non-Agency MBS [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities, at fair value	0	0
Non-Agency MBS [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities, at fair value	496,292	506,102
Non-Agency MBS [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities, at fair value	120,969	105,220
Other Investments [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Investments, Fair Value Disclosure	25	25
Other Investments [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Investments, Fair Value Disclosure	0	0
Other Investments [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Investments, Fair Value Disclosure	0	0
Other Investments [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Investments, Fair Value Disclosure	$ 25	$ 25

XML

Derivatives Derivative Effect on Accumulated Other Comprehensive Income (Details) (Interest rate swap [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013
Derivative [Line Items]
Existing amount in AOCI expected to be reclassified	$ 17,955
Derivatives in net liability position	38,560
Agency MBS [Member]
Derivative [Line Items]
Collateral pledged for swaps in a net liability position	40,568
Cash [Member]
Derivative [Line Items]
Collateral pledged for swaps in a net liability position	$ 38

XML

Shareholders' Equity Share-based Compensation (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based incentive plan, number of shares authorized for issuance	2,500,000
Share-based incentive plan, number of shares remaining for issuance	1,665,676
Total share-based compensation expense	$ 489	$ 453
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Stock options outstanding at end of period,	15,000
Stock options outstanding at end of period, weighted average exercise price	$ 9.81
Stock Appreciation Rights (SARs) [Member]
Stock Appreciation Rights [Roll Forward]
Stock appreciation rights outstanding at beginning of period	27,500	59,375
Stock appreciation rights exercised during the period	(2,500)	0
Stock appreciation rights outstanding at end of period	25,000	59,375
Stock appreciation rights outstanding at beginning of period, weighted average exercise price	$ 7.06	$ 0
Stock appreciation rights exercised during the period, weighted average exercise price	$ 7.06	$ 0
Stock appreciation rights outstanding at end of period, weighted average exercise price	$ 0	$ 6.87
Stock appreciation rights, fair value of liability remaining	0		0
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options
Restricted stock outstanding at beginning of the period	448,283	365,506
Restricted stock granted during the period	139,600	200,821
Restricted stock vested during the period	(153,720)	(109,293)
Restricted stock outstanding at end of the period	434,163	457,034
Stock Issued During Period, Value, Restricted Stock Award, Gross	1,491	1,891
Nonvested restricted stock, fair value remaining to be amortized	4,018
Restricted Stock [Member] | 12 months or less [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options
Nonvested restricted stock, fair value remaining to be amortized	1,634
Restricted Stock [Member] | Two to three years [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options
Nonvested restricted stock, fair value remaining to be amortized	1,313
Restricted Stock [Member] | Three to four years [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options
Nonvested restricted stock, fair value remaining to be amortized	890
Restricted Stock [Member] | Four to five years [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options
Nonvested restricted stock, fair value remaining to be amortized	$ 181

XML

Mortgage backed securities Mortgage backed securities (Notes)

3 Months Ended

Mar. 31, 2013

Schedule of Available-for-sale Securities [Line Items]

Mortgage-backed securities

MORTGAGE-BACKED SECURITIES

The following table presents the components of the Company’s MBS designated as AFS as of March 31, 2013 and December 31, 2012 and includes MBS pending settlement:

	March 31, 2013
	Par		Net Premium (Discount)			Amortized Cost		Net Unrealized Gain (Loss)		Fair Value		Weighted average coupon
Agency:
RMBS (including pending settlements)	$	2,732,173	$	158,205		$	2,890,378	$	4,643	$	2,895,021	3.56	%
CMBS	280,842		21,562			302,404		19,812		322,216		5.18	%
CMBS IO (1)	—		576,161			576,161		25,228		601,389		1.02	%
Total Agency AFS:	3,013,015		755,928			3,768,943		49,683		3,818,626
Non-Agency:
RMBS	10,053		(758		)	9,295		285		9,580		4.20	%
CMBS	472,650		(16,685		)	455,965		40,310		496,275		5.40	%
CMBS IO (1)	—		104,930			104,930		6,476		111,406		0.93	%
Total non-Agency AFS:	482,703		87,487			570,190		47,071		617,261
Total AFS securities (including pending settlements)	$	3,495,718	$	843,415		$	4,339,133	$	96,754	$	4,435,887

(1) The combined notional balance for Agency CMBS IO and non-Agency CMBS IO is $10,873,160 and $2,385,979, respectively, as of March 31, 2013.

	December 31, 2012
	Par		Net Premium (Discount)			Amortized Cost		Net Unrealized Gain (Loss)		Fair Value		Weighted average coupon
Agency:
RMBS	$	2,425,826	$	137,168		$	2,562,994	$	8,343	$	2,571,337	3.67	%
CMBS	280,602		21,907			302,509		21,564		324,073		5.19	%
CMBS IO (1)	—		550,171			550,171		17,009		567,180		0.95	%
Total Agency AFS:	2,706,428		709,246			3,415,674		46,916		3,462,590
Non-Agency:
RMBS	11,411		(781		)	10,630		408		11,038		4.28	%
CMBS	463,747		(17,313		)	446,434		39,908		486,342		5.31	%
CMBS IO (1)	—		108,928			108,928		5,014		113,942		0.86	%
Total non-Agency AFS:	475,158		90,834			565,992		45,330		611,322
Total AFS securities	$	3,181,586	$	800,080		$	3,981,666	$	92,246	$	4,073,912

(1) The combined notional balance for the Agency CMBS IO and non-Agency CMBS IO is $10,059,495 and $2,393,614, respectively, as of December 31, 2012.

The Company has investments in additional Agency CMBS not included in the tables above that are designated as trading securities by the Company with fair values of $29,808 and $30,069 as of March 31, 2013 and December 31, 2012, respectively. Changes in the fair value of these Agency CMBS are recognized each reporting period within "fair value adjustments, net" in the Company's consolidated statements of income. As of March 31, 2013 and December 31, 2012, the amortized cost of these Agency CMBS designated as trading securities was $27,381 and $27,535, respectively. The Company recognized a net unrealized loss for the three months ended March 31, 2013 of $(107) compared to a net unrealized loss of $(136) for the three months ended March 31, 2012, respectively, related to changes in fair value. The Company also has derivatives designated as trading instruments, and the changes in their fair value are also included within "fair value adjustments, net". Please refer to Note 7 for additional information on these derivatives designated as trading instruments.

The following table presents certain information for those Agency MBS in an unrealized loss position as of March 31, 2013 and December 31, 2012:

	March 31, 2013						December 31, 2012
	Fair Value		Gross Unrealized Losses			# of Securities	Fair Value		Gross Unrealized Losses			# of Securities
Continuous unrealized loss position for less than 12 months:
Agency MBS	$	1,034,706	$	(8,997	)	87	$	1,026,277	$	(6,552	)	83
Non-Agency MBS	4,480		(314		)	2	13,877		(76		)	3
Continuous unrealized loss position for 12 months or longer:
Agency MBS	$	251,664	$	(6,415	)	35	$	271,719	$	(5,797	)	34
Non-Agency MBS	2,188		(161		)	6	2,701		(198		)	8

Because the principal and interest related to Agency MBS are guaranteed by the government-sponsored entities Fannie Mae and Freddie Mac who have the implicit guarantee of the U.S. government, the Company does not consider any of the unrealized losses on its Agency MBS to be credit related. Although the unrealized losses are not credit related, the Company assesses its ability and intent to hold any Agency MBS with an unrealized loss until the recovery in its value. This assessment is based on the amount of the unrealized loss and significance of the related investment as well as the Company’s current leverage and anticipated liquidity.  Based on this analysis, the Company has determined that the unrealized losses on its Agency MBS as of March 31, 2013 and December 31, 2012 were temporary.

The Company also reviews any non-Agency MBS in an unrealized loss position to evaluate whether any decline in fair value represents an other-than-temporary impairment. The evaluation includes a review of the credit ratings of these non-Agency MBS and the seasoning of the mortgage loans collateralizing these securities as well as the estimated future cash flows which include projected losses. The Company performed this evaluation for the non-Agency MBS in an unrealized loss position as of March 31, 2013 and has determined that there have not been any adverse changes in the timing or amount of estimated future cash flows that necessitate a recognition of other-than-temporary impairment amounts as of March 31, 2013.

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Fair Value of Financial Instruments Significant Unobservable Inputs Level 3 (Details) (Fair Value, Inputs, Level 3 [Member])	3 Months Ended
	Mar. 31, 2013
Non-Agency CMBS [Member]
Fair Value Inputs, Quantitative Information [Abstract]
Fair Value Inputs, Prepayment Rate	20.00%	[1]
Fair Value Inputs, Probability of Default	2.50%	[1]
Fair Value Inputs, Loss Severity	35.00%	[1]
Fair Value Inputs, Discount Rate	5.10%	[1]
Non-Agency RMBS [Member]
Fair Value Inputs, Quantitative Information [Abstract]
Fair Value Inputs, Prepayment Rate	9.00%	[1]
Fair Value Inputs, Probability of Default	0.90%	[1]
Fair Value Inputs, Loss Severity	18.50%	[1]
Fair Value Inputs, Discount Rate	6.70%	[1]

[1] Data presented are weighted averages.

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Shareholders' Equity Schedule of Additional Paid-In Capital (Tables)

3 Months Ended

Mar. 31, 2013

Additional Paid in Capital [Abstract]

Schedule of Additional Paid in Capital [Table Text Block]

Additional Paid-In Capital

The following table presents a rollforward of the Company's changes in additional paid-in capital for the periods indicated:

	Three Months Ended
	March 31,
	2013			2012
Balance as of beginning of period	$	759,214		$	634,683
Common stock issuances:
DRIP issuances	3,224			37
ATM issuances	1,954			3,674
Secondary offering	—			119,859
Adjustments related to tax withholding for share-based compensation	(545		)	—
Amortization of restricted stock, net of additional grants	455			369
Capitalized expenses	(30		)	(119		)
Balance as of end of period	$	764,272		$	758,503

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Shareholders' Equity (Tables)

3 Months Ended

Mar. 31, 2013

Equity [Abstract]

Schedule of Common Stock Outstanding Roll Forward [Table Text Block]

The following table presents a summary of the changes in the number of common shares outstanding for the periods indicated:

	Three Months Ended
	March 31,
	2013		2012
Balance as of beginning of period	54,268,915		40,382,530
Common stock issued under DRIP	298,304		3,932
Common stock issued under ATM program	180,986		402,494
Common stock issued via secondary offering	—		13,332,748
Common stock issued or redeemed under stock and incentive plans	139,600		216,663
Common stock forfeited for tax withholding on share-based compensation	(52,385	)	—
Balance as of end of period	54,835,420		54,338,367

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]

The following table presents a rollforward of the restricted stock activity for the periods indicated:

	Three Months Ended
	March 31,
	2013		2012
Restricted stock outstanding as of beginning of period	448,283		365,506
Restricted stock granted	139,600		200,821
Restricted stock vested	(153,720	)	(109,293	)
Restricted stock outstanding as of end of period	434,163		457,034

Schedule of Share-based Compensation, Stock Appreciation Rights Award Activity [Table Text Block]

The following table presents a rollforward of the SARs activity for the periods indicated:

	Three Months Ended
	March 31,
	2013				2012
	Quantity		Weighted-Average Price		Quantity	Weighted-Average Price
SARs outstanding as of beginning of period	27,500		$	7.06	59,375	$	6.87
SARs exercised	(2,500	)	7.06		—	—
SARs outstanding as of end of period	25,000		$	7.06	59,375	$	6.87

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

Accumulated other comprehensive income as of March 31, 2013 and December 31, 2012 is comprised of the following items:

	March 31, 2013			December 31, 2012
Available for sale investments:
Unrealized gains	$	112,641		$	104,870
Unrealized losses	(15,888		)	(12,623		)
	96,753			92,247
Hedging instruments:
Unrealized losses	(35,196		)	(39,736		)
Accumulated other comprehensive income	$	61,557		$	52,511

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Fair Value of Financial Instruments Level 3 (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2013 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member]	Mar. 31, 2013 Non-Agency CMBS [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member]	Mar. 31, 2013 Non-Agency RMBS [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member]	Mar. 31, 2013 Other Investments [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member]	Dec. 31, 2012 Other Investments [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at the beginning of the period		$ 105,245	$ 100,102	$ 5,118	$ 25	$ 25
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases	0	19,516	19,516	0
Unrealized (loss) gain included in OCI	0	(478)	(444)	(34)
Principal payments	0	3,404	2,059	1,345
Amortization	0	115	104	11
Balance at the end of the period		$ 120,994	$ 117,219	$ 3,750	$ 25	$ 25

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Net Income Per Common Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net Income	$ 19,603	$ 16,476
Preferred Stock Dividends	(1,222)	0
Net income to common shareholders	18,381	16,476
Effect of dilutive stock options, income		0
Diluted net income	$ 18,381	$ 16,476
Weighted Average Common Shares	54,300,020	49,480,426
Effect of dilutive stock options, number of shares	754	469
Diluted, Weighted Average Number Common Shares	54,300,774	49,480,895
Basic Net Income Per Common Share	$ 0.34	$ 0.33
Diluted Net Income Per Common Share	$ 0.34	$ 0.33
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount		15,000

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Mortgage backed securities Mortgage backed securities designated as AFS (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Schedule of Available-for-sale Securities [Line Items]
Investment Owned, Balance, Principal Amount	$ 3,495,718	$ 3,181,586
Investments, Unamortized Premium (Discount), Net	843,415	800,080
Available-for-sale Securities, Amortized Cost Basis	4,339,133	3,981,666
Available-for-sale Securities, Net Unrealized Gain (Loss)	96,754	92,246
Mortgage-backed Securities Available-for-sale, Fair Value	4,435,887	4,073,912
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment Owned, Balance, Principal Amount	3,013,015	2,706,428
Investments, Unamortized Premium (Discount), Net	755,928	709,246
Available-for-sale Securities, Amortized Cost Basis	3,768,943	3,415,674
Available-for-sale Securities, Net Unrealized Gain (Loss)	49,683	46,916
Mortgage-backed Securities Available-for-sale, Fair Value	3,818,626	3,462,590
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] | Residential Mortgage Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment Owned, Balance, Principal Amount	2,732,173	2,425,826
Investments, Unamortized Premium (Discount), Net	158,205	137,168
Available-for-sale Securities, Amortized Cost Basis	2,890,378	2,562,994
Available-for-sale Securities, Net Unrealized Gain (Loss)	4,643	8,343
Mortgage-backed Securities Available-for-sale, Fair Value	2,895,021	2,571,337
Investments, Weighted Average Coupon Rate	3.56%	3.67%
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] | Commercial Mortgage Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment Owned, Balance, Principal Amount	280,842	280,602
Investments, Unamortized Premium (Discount), Net	21,562	21,907
Available-for-sale Securities, Amortized Cost Basis	302,404	302,509
Available-for-sale Securities, Net Unrealized Gain (Loss)	19,812	21,564
Mortgage-backed Securities Available-for-sale, Fair Value	322,216	324,073
Investments, Weighted Average Coupon Rate	5.18%	5.19%
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] | Commercial Mortgage Backed Securities, Interest Only [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment Owned, Balance, Principal Amount	0	0
Notional balance for interest only securities	10,873,160	10,059,495
Investments, Unamortized Premium (Discount), Net	576,161	550,171
Available-for-sale Securities, Amortized Cost Basis	576,161	550,171
Available-for-sale Securities, Net Unrealized Gain (Loss)	25,228	17,009
Mortgage-backed Securities Available-for-sale, Fair Value	601,389	567,180
Investments, Weighted Average Coupon Rate	1.02%	0.95%
Mortgage-backed Securities, Issued by Private Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment Owned, Balance, Principal Amount	482,703	475,158
Investments, Unamortized Premium (Discount), Net	87,487	90,834
Available-for-sale Securities, Amortized Cost Basis	570,190	565,992
Available-for-sale Securities, Net Unrealized Gain (Loss)	47,071	45,330
Mortgage-backed Securities Available-for-sale, Fair Value	617,261	611,322
Mortgage-backed Securities, Issued by Private Enterprises [Member] | Residential Mortgage Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment Owned, Balance, Principal Amount	10,053	11,411
Investments, Unamortized Premium (Discount), Net	(758)	(781)
Available-for-sale Securities, Amortized Cost Basis	9,295	10,630
Available-for-sale Securities, Net Unrealized Gain (Loss)	285	408
Mortgage-backed Securities Available-for-sale, Fair Value	9,580	11,038
Investments, Weighted Average Coupon Rate	4.20%	4.28%
Mortgage-backed Securities, Issued by Private Enterprises [Member] | Commercial Mortgage Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment Owned, Balance, Principal Amount	472,650	463,747
Investments, Unamortized Premium (Discount), Net	(16,685)	(17,313)
Available-for-sale Securities, Amortized Cost Basis	455,965	446,434
Available-for-sale Securities, Net Unrealized Gain (Loss)	40,310	39,908
Mortgage-backed Securities Available-for-sale, Fair Value	496,275	486,342
Investments, Weighted Average Coupon Rate	5.40%	5.31%
Mortgage-backed Securities, Issued by Private Enterprises [Member] | Commercial Mortgage Backed Securities, Interest Only [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment Owned, Balance, Principal Amount	0	0
Notional balance for interest only securities	2,385,979	2,393,614
Investments, Unamortized Premium (Discount), Net	104,930	108,928
Available-for-sale Securities, Amortized Cost Basis	104,930	108,928
Available-for-sale Securities, Net Unrealized Gain (Loss)	6,476	5,014
Mortgage-backed Securities Available-for-sale, Fair Value	111,406	113,942
Investments, Weighted Average Coupon Rate	0.93%	0.86%
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	1,034,706	1,026,277
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	(8,997)	(6,552)
Available-for-sale Securities, Number in unrealized loss position less than 12 months	87	83
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	251,664	271,719
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses	(6,415)	(5,797)
Available-for-sale Securities, Unrealized Loss position for 12 months or more	35	34
Mortgage-backed Securities, Issued by Private Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	4,480	13,877
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	(314)	(76)
Available-for-sale Securities, Number in unrealized loss position less than 12 months	2	3
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	2,188	2,701
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses	$ (161)	$ (198)
Available-for-sale Securities, Unrealized Loss position for 12 months or more	6	8

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Net Income Per Common Share

3 Months Ended

Mar. 31, 2013

Earnings Per Share, Basic and Diluted [Abstract]

Net Income per Common Share

NET INCOME PER COMMON SHARE

Net income per common share is presented on both a basic and diluted basis.  Diluted net income per common share assumes the exercise of stock options using the treasury stock method for all periods presented. Because the Company's 8.50% Series A Cumulative Redeemable Preferred Stock (the "Series A Preferred Stock") is redeemable at the Company's option for cash only, and the Series A Preferred Stock can convert into shares of common stock only upon a change of control of the Company, the effect of those shares is excluded from the calculation of diluted net income per common share for the three months ended March 31, 2013. Holders of unvested shares of our issued and outstanding restricted common stock are eligible to receive non-forfeitable dividends. As such, these unvested shares are considered participating securities as per ASC 260-10 and therefore are included in the computation of basic earnings per share ("EPS") using the two-class method.

The following table presents the calculation of the numerator and denominator for both basic and diluted net income per common share:

	Three Months Ended
	March 31,
	2013					2012
	Income			Weighted-Average Common Shares		Income		Weighted- Average Common Shares
Net income	$	19,603				$	16,476
Preferred stock dividends	(1,222		)			—
Net income to common shareholders	$	18,381		54,300,020		$	16,476	49,480,426
Effect of dilutive stock options	—			754		—		469
Diluted	$	18,381		54,300,774		$	16,476	49,480,895
Net income per common share:
Basic				$	0.34			$	0.33
Diluted (1)				$	0.34			$	0.33

(1) For the three months ended March 31, 2012, the calculation of diluted net income per common shareexcludes the effect of 15,000 unexercised stock option awards because their inclusion would have been anti-dilutive.

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Mortgage backed securities Mortgage backed securities designated as Trading (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Schedule of Trading Securities and Other Trading Assets [Line Items]
Trading Securities, Debt	$ 29,808		$ 30,069
Trading Securities, Amortized cost	27,381		27,535
Trading Securities, Unrealized Holding Loss	$ (107)	$ (136)

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Repurchase Agreements Counterparty Information (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013 Agreements
Counterparty Information [Line Items]
Number of Counterparties with Borrowings Outstanding	20
Available Repurchase Agreement Counterparties	29
Concentration Risk, Percentage	17.00%
Amount outstanding with counterparty	$ 365,061
Weighted average interest rate, amount outstanding with counterparty	1.34%

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Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
ASSETS
Mortgage-backed securities, at fair value	$ 4,267,917	$ 4,103,981
MBS pending settlement	197,778	0
Securitized mortgage loans, net	64,825	70,823
Other investments, net	822	858
Total investments, net	4,531,342	4,175,662
Cash and cash equivalents	44,129	55,809
Principal receivable on investments	18,615	17,008
Accrued interest receivable	24,920	23,073
Other assets, net	9,107	8,677
Total assets	4,628,113	4,280,229
Liabilities:
Repurchase agreements	3,708,255	3,564,128
Payable for securities pending settlement	198,051	0
Non recourse collateralized financing	28,473	30,504
Derivative Liabilities	37,687	42,537
Accrued interest payable	2,873	2,895
Accrued dividends payable	16,934	16,770
Other liabilities	2,542	6,685
Total liabilities	3,994,815	3,663,519
Shareholders’ equity:
Preferred Stock, par value $.01 per share, 8.5% Series A Cumulative Redeemable; 8,000,000 shares authorized; 2,300,000 and no shares issued and outstanding, respectively ($58,532 aggregate liquidation preference)	55,407	55,407
Common stock, par value $.01 per share, 100,000,000 shares authorized; 54,835,420 and 54,268,915 shares issued and outstanding, respectively	548	543
Additional paid-in capital	764,272	759,214
Accumulated other comprehensive income	61,557	52,511
Accumulated deficit	(248,486)	(250,965)
Total shareholders' equity	633,298	616,710
Total liabilities and shareholders’ equity	$ 4,628,113	$ 4,280,229

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Fair Value of Financial Instruments Recorded basis and Fair Value (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities, Fair Value Disclosure	$ 4,267,917	$ 4,103,981
Derivative Liabilities, Fair Value Disclosure	37,687	42,537
Repurchase Agreements [Member] | Carrying (Reported) Amount, Fair Value Disclosure [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Repurchase Agreements, Fair Value Disclosure	3,708,255	3,564,128
Repurchase Agreements [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Repurchase Agreements, Fair Value Disclosure	3,708,811	3,564,787
Non-recourse collateralized financing [Member] | Carrying (Reported) Amount, Fair Value Disclosure [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Instrument, Fair Value Disclosure	28,473	30,504
Non-recourse collateralized financing [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Instrument, Fair Value Disclosure	28,810	30,756
Derivative Financial Instruments, Liabilities [Member] | Carrying (Reported) Amount, Fair Value Disclosure [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liabilities, Fair Value Disclosure	37,687	42,537
Derivative Financial Instruments, Liabilities [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liabilities, Fair Value Disclosure	37,687	42,537
Agency MBS [Member] | Carrying (Reported) Amount, Fair Value Disclosure [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities, Fair Value Disclosure	3,848,434	3,492,659
Agency MBS [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities, Fair Value Disclosure	3,848,434	3,492,659
Non-Agency MBS [Member] | Carrying (Reported) Amount, Fair Value Disclosure [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities, Fair Value Disclosure	617,261	611,322
Non-Agency MBS [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities, Fair Value Disclosure	617,261	611,322
Securitized mortgage loans, net [Member] | Carrying (Reported) Amount, Fair Value Disclosure [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securitized mortgage loans, Fair Value Disclosure	64,825	70,823
Securitized mortgage loans, net [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securitized mortgage loans, Fair Value Disclosure	54,757	61,916
Other Investments [Member] | Carrying (Reported) Amount, Fair Value Disclosure [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Investments, Fair Value Disclosure	822	858
Other Investments [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Investments, Fair Value Disclosure	$ 775	$ 810

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Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Operating activities:
Net income	$ 19,603	$ 16,476
Adjustments to reconcile net income to cash provided by operating activities:
Increase in accrued interest receivable	(1,401)	(3,261)
Decrease in accrued interest payable	(22)	(468)
Provision for loan losses	261	60
Gain on sale of investments, net	(1,391)	(351)
Fair value adjustments, net	157	210
Amortization and depreciation	32,117	13,257
Stock-based compensation expense	490	453
Cash paid for stock appreciation rights	(9)	0
Net change in other assets and other liabilities	(4,400)	(2,053)
Net cash and cash equivalents provided by operating activities	45,405	24,323
Investing activities:
Purchase of investments	(438,376)	(881,854)
Principal payments received on investments	217,358	117,231
(Increase) decrease in principal receivable on investments	(1,607)	4,418
Proceeds from sales of investments	31,158	49,569
Principal payments received on securitized mortgage loans	5,737	13,745
Other investing activities	(1,001)	(534)
Net cash and cash equivalents used in investing activities	(186,731)	(697,425)
Financing activities:
Borrowings under repurchase agreements, net	144,023	592,405
Principal payments on non-recourse collateralized financing	(2,024)	(38,781)
Proceeds from issuance of common stock	5,152	123,733
Payments Related to Tax Withholding for Share-based Compensation	545	0
Dividends paid	(16,960)	(11,307)
Net cash and cash equivalents provided by financing activities	129,646	666,050
Net increase in cash and cash equivalents	(11,680)	(7,052)
Cash and cash equivalents at beginning of period	55,809	48,776
Cash and cash equivalents at end of period	44,129	41,724
Supplemental Disclosure of Cash Activities:
Cash paid for interest	$ 10,381	$ 7,488

XML

Derivatives (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013 Derivatives	Dec. 31, 2012
Forward Contracts [Member]
Derivatives, Fair Value [Line Items]
Notional Amount	$ 25,000
Weighted-average Fixed Rate Swapped	1.70%
Interest rate swap [Member]
Derivatives, Fair Value [Line Items]
Fair Value	(37,687)	(42,537)
Notional Amount	1,437,000
Number of Swaps	40
Weighted-average Fixed Rate Swapped	1.54%
Interest rate swap [Member] | 0-12 months [Member]
Derivatives, Fair Value [Line Items]
Notional Amount	300,000
Number of Swaps	5
Weighted-average Fixed Rate Swapped	1.29%
Interest rate swap [Member] | 13-36 months [Member]
Derivatives, Fair Value [Line Items]
Notional Amount	490,000
Number of Swaps	11
Weighted-average Fixed Rate Swapped	1.76%
Interest rate swap [Member] | 37-60 months [Member]
Derivatives, Fair Value [Line Items]
Notional Amount	247,000
Number of Swaps	10
Weighted-average Fixed Rate Swapped	1.29%
Interest rate swap [Member] | Over 60 months [Member]
Derivatives, Fair Value [Line Items]
Notional Amount	400,000
Number of Swaps	14
Weighted-average Fixed Rate Swapped	1.60%
Interest rate swap [Member] | Hedging instrument [Member]
Derivatives, Fair Value [Line Items]
Fair Value	(35,314)	(39,813)
Notional Amount	1,410,000	1,435,000
Weighted-average Fixed Rate Swapped	1.51%	1.50%
Interest rate swap [Member] | Hedging instrument [Member] | 0-12 months [Member]
Derivatives, Fair Value [Line Items]
Notional Amount	300,000
Interest rate swap [Member] | Hedging instrument [Member] | 13-36 months [Member]
Derivatives, Fair Value [Line Items]
Notional Amount	490,000
Interest rate swap [Member] | Hedging instrument [Member] | 37-60 months [Member]
Derivatives, Fair Value [Line Items]
Notional Amount	220,000
Interest rate swap [Member] | Hedging instrument [Member] | Over 60 months [Member]
Derivatives, Fair Value [Line Items]
Notional Amount	400,000
Interest rate swap [Member] | Designated as Trading [Member]
Derivatives, Fair Value [Line Items]
Fair Value	(2,373)	(2,724)
Notional Amount	27,000	27,000
Weighted-average Fixed Rate Swapped	2.88%	2.88%
Interest rate swap [Member] | Designated as Trading [Member] | 37-60 months [Member]
Derivatives, Fair Value [Line Items]
Notional Amount	$ 27,000

XML

Securitized Mortage Loans, Net (Tables)

3 Months Ended

Mar. 31, 2013

SECURITIZED MORTGAGE LOANS, NET [Abstract]

Securitized mortgage loans, net [Table Text Block]

The following table summarizes the components of securitized mortgage loans as of March 31, 2013 and December 31, 2012:

	March 31, 2013									December 31, 2012
	Commercial			Single-family			Total			Commercial			Single-family			Total
Principal/par value (1)	$	27,010		$	38,730		$	65,740		$	30,576		$	41,337		$	71,913
Unamortized (discount) premium,    net	(1,229		)	574			(655		)	(1,267		)	616			(651		)
Amortized cost	25,781			39,304			65,085			29,309			41,953			71,262
Allowance for loan losses	(145		)	(115		)	(260		)	(150		)	(289		)	(439		)
	$	25,636		$	39,189		$	64,825		$	29,159		$	41,664		$	70,823

 (1) Includes funds held by trustees.

XML

Derivatives Derivatives, Hedging Instruments, Consolidated Statement of Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013 Interest rate swap [Member] Hedging instrument [Member]	Mar. 31, 2012 Interest rate swap [Member] Hedging instrument [Member]	Mar. 31, 2013 Interest rate swap [Member] Interest expense [Member] Hedging instrument [Member]	Mar. 31, 2012 Interest rate swap [Member] Interest expense [Member] Hedging instrument [Member]	Mar. 31, 2013 Interest rate swap [Member] Other Income, net [Member] Hedging instrument [Member]	Mar. 31, 2012 Interest rate swap [Member] Other Income, net [Member] Hedging instrument [Member]	Mar. 31, 2013 Interest rate swap [Member] Fair value adjustments, net [Member] Designated as Trading [Member]	Sep. 30, 2011 Interest rate swap [Member] Fair value adjustments, net [Member] Designated as Trading [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in OCI (Effective Portion)			$ 437	$ (3,087)
Reclassification adjustment for interest expense amounts included in statement of income	4,103	3,266			4,103
Amount Reclassified from OCI into Net Income (Effective Portion)						3,266
Amount of Loss Recognized in Net Income (Ineffective Portion)							(41)	(62)
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net									$ (17)	$ (74)

XML

Derivatives (Tables)

3 Months Ended

Mar. 31, 2013

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]

The tables below summarize information about the Company’s derivative financial instruments on the balance sheet as of the dates indicated:  

		March 31, 2013							December 31, 2012
Accounting Designation:	Balance Sheet Location:	Fair Value			Aggregate Notional Amount		Weighted-average Fixed Rate Swapped		Fair Value			Aggregate Notional Amount		Weighted-average Fixed Rate Swapped
Hedging instruments		$	(35,314	)	$	1,410,000	1.51	%	$	(39,813	)	$	1,435,000	1.50	%
Trading instruments		(2,373		)	27,000		2.88	%	(2,724		)	27,000		2.88	%
	Derivative liabilities	$	(37,687	)					$	(42,537	)

Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]

The following table summarizes the contractual maturities remaining for the Company’s outstanding interest rate swap agreements as of March 31, 2013:

Remaining Maturity	Notional Amount: Trading		Notional Amount: Hedging		Notional Amount: Total		Number of Swaps	Weighted-Average Fixed Rate Swapped
0-12 months	$	—	$	300,000	$	300,000	5	1.29	%
13-36 months	—		490,000		490,000		11	1.76	%
37-60 months	27,000		220,000		247,000		10	1.29	%
Over 60 months	—		400,000		400,000		14	1.60	%
	$	27,000	$	1,410,000	$	1,437,000	40	1.54	%

Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) [Table Text Block]

The table below presents the effect of the derivatives designated as hedging instruments on the Company’s consolidated statement of comprehensive income for the periods indicated:

Type of Derivative Designated as Cash Flow Hedge	Amount of Gain (Loss) Recognized in OCI (Effective Portion)	Location of Amount Reclassified from OCI into Net Income (Effective Portion)	Amount Reclassified from OCI into Net Income (Effective Portion)	Location of Amount Recognized in Net Income (Ineffective Portion)	Amount of Loss Recognized in Net Income (Ineffective Portion)
For the three months ended March 31, 2013:
Interest rate swaps	$437	Interest expense	$4,103	Other income, net	$(41)
For the three months ended March 31, 2012:
Interest rate swaps	$(3,087)	Interest expense	$3,266	Other income, net	$(62)

Schedule of Derivative Instruments Included in Trading Activities [Table Text Block]

The table below presents the amount of loss recognized in net income for the changes in fair value of the derivatives designated as trading instruments for the periods indicated:

Type of Derivative Designated as Trading	Location On Income Statement	Three Months Ended
		March 31, 2013			March 31, 2012
Interest rate swaps	Fair value adjustments, net	$	(17	)	$	(74	)

XML

Summary of Significant Accounting Policies

3 Months Ended

Mar. 31, 2013

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation

The accompanying consolidated financial statements of Dynex Capital, Inc. and its qualified real estate investment trust (“REIT”) subsidiaries and its taxable REIT subsidiary (together, “Dynex” or the “Company”) have been prepared in accordance with the instructions to the Quarterly Report on Form 10-Q and Article 10, Rule 10-01 of Regulation S-X promulgated by the Securities and Exchange Commission (the “SEC”).  Accordingly, they do not include all of the information and notes required by accounting principles generally accepted in the United States of America (“GAAP”) for complete financial statements.  In the opinion of management, all significant adjustments, consisting of normal recurring accruals considered necessary for a fair presentation of the consolidated financial statements, have been included.  Operating results for the three months ended March 31, 2013 are not necessarily indicative of the results that may be expected for any other interim periods or for the entire year ending December 31, 2013.  The unaudited consolidated financial statements included herein should be read in conjunction with the audited financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2012 filed with the SEC.

Certain items in the prior years' consolidated financial statements have been reclassified to conform to the current year’s presentation.  The Company’s consolidated balance sheet as of December 31, 2012 now presents its Agency and non-Agency mortgage-backed securities as "mortgage-backed securities, at fair value". In addition, the Company's consolidated statement of income for the three months ended March 31, 2012 now presents its interest income from Agency and non-Agency mortgage-backed securities as "interest income-mortgage-backed securities". These presentation changes have no effect on reported total assets, total liabilities, results of operations, or cash flow activities.

Consolidation

The consolidated financial statements include the accounts of the Company, its qualified REIT subsidiaries and its taxable REIT subsidiary.  The consolidated financial statements represent the Company’s accounts after the elimination of intercompany balances and transactions.  The Company consolidates entities in which it owns more than 50% of the voting equity and control does not rest with others and variable interest entities in which it is determined to be the primary beneficiary in accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 810-10.  The Company follows the equity method of accounting for investments with greater than a 20% and less than 50% interest in partnerships and corporate joint ventures or when it is able to influence the financial and operating policies of the investee but owns less than 50% of the voting equity. As of March 31, 2013 and December 31, 2012, the Company did not have any investments in which it owned less than a 50% interest in the voting equity.

In accordance with ASC Topic 810-10, the Company also consolidates certain trusts through which it has securitized mortgage loans. Additional information regarding the accounting policy for securitized mortgage loans is provided below under "Investments".

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements as well as the reported amounts of revenue and expenses during the reported period.  Actual results could differ from those estimates.  The most significant estimates used by management include but are not limited to fair value measurements of its investments, allowance for loan losses, other-than-temporary impairments, commitments and contingencies, and amortization of premiums and discounts. These items are discussed further below within this note to the consolidated financial statements.

Federal Income Taxes

The Company believes it has complied with the requirements for qualification as a REIT under the Internal Revenue Code of 1986, as amended (the “Code”).  As such, the Company believes that it qualifies as a REIT for federal income tax purposes, and it generally will not be subject to federal income tax on the amount of its income or gain that is distributed as dividends to shareholders.  The Company uses the calendar year for both tax and financial reporting purposes.  There may be differences between taxable income and income computed in accordance with GAAP.

 Cash and Cash Equivalents

Cash and cash equivalents include cash on hand and highly liquid investments with original maturities of three months or less.

Investments

The Company’s investments include Agency mortgage-backed securities ("MBS"), non-Agency MBS, securitized mortgage loans, and other investments.

Agency MBS. The Company accounts for its investment in Agency MBS in accordance with ASC Topic 320, which requires that investments in debt and equity securities be designated as either “held-to-maturity,” “available-for-sale” or “trading” at the time of acquisition.  As of March 31, 2013, the majority of the Company's Agency MBS are designated as available-for-sale (or "AFS") with the remainder designated as trading.  Although the Company generally intends to hold its available-for-sale securities until maturity, it may, from time to time, sell any of these securities as part of the overall management of its business.  The available-for-sale designation provides the Company with this flexibility.

All of the Company’s Agency MBS are recorded at their fair value on the consolidated balance sheet. In accordance with ASC Topic 820, the Company determines the fair value of its Agency MBS based upon prices obtained from a third-party pricing service and broker quotes. The Company's application of ASC Topic 820 guidance is discussed further in Note 9.  Changes in the fair value of Agency MBS designated as trading are recognized in net income within “fair value adjustments, net”.   Gains (losses) realized upon the sale, impairment, or other disposal of a trading security are also recognized within “fair value adjustments, net”.  Alternatively, changes in the fair value of Agency MBS designated as available-for-sale are reported in other comprehensive income as unrealized gains (losses) until the security is collected, disposed of, or determined to be other than temporarily impaired.  Upon the sale of an available-for-sale security, any unrealized gain or loss is reclassified out of accumulated other comprehensive income (“AOCI”) into net income as a realized “gain (loss) on sale of investments, net” using the specific identification method.

Non-Agency MBS.  The Company accounts for its investment in non-Agency MBS in accordance with ASC Topic 320.  As of March 31, 2013, all of the Company’s non-Agency MBS are designated as available-for-sale and are recorded at their fair value on the consolidated balance sheet.  Changes in fair value are reported in other comprehensive income until the security is collected, disposed of, or determined to be other than temporarily impaired. Like Agency MBS, the Company generally intends to hold its investments in non-Agency MBS until maturity, but it may, from time to time sell any of these securities as part of the overall management of its business.  Upon the sale of an available-for-sale security, any unrealized gain or loss is reclassified out of AOCI into net income as a realized “gain (loss) on sale of investments, net” using the specific identification method.

In accordance with ASC Topic 820, the Company determines the fair value for the majority of its non-Agency MBS based upon prices obtained from a third-party pricing service and broker quotes.  The remainder of the non-Agency MBS are valued by discounting the estimated future cash flows derived from cash flow models that utilize information such as the security’s coupon rate, estimated prepayment speeds, expected weighted average life, collateral composition, estimated future interest rates, expected losses, credit enhancement, as well as certain other relevant information. The Company's application of ASC Topic 820 guidance is discussed further in Note 9.

Mortgage-backed securities pending settlement.  Mortgage-backed securities pending settlement include MBS where the Company has contractually committed to purchasing MBS but the trade has not yet settled as of the balance sheet date. A corresponding liability for the cost of the settlement plus accrued interest is recorded as "payable for mortgage-backed securities pending settlement" in the accompanying consolidated financial statements.

Other-than-Temporary Impairment.The Company evaluates all MBS in its investment portfolio for other-than-temporary impairments by applying the guidance prescribed in ASC Topic 320-10. The Company compares the amortized cost of each security in an unrealized loss position against the present value of expected future cash flows of the security. If there has been a significant adverse change in the cash flow expectations for a security resulting in the its amortized cost becoming greater than the present value of its expected future cash flows, an other-than-temporary credit impairment has occurred. If the Company does not intend to sell and is not more likely than not required to sell the security, the credit loss is recognized in earnings and the balance of the unrealized loss is recognized in other comprehensive income (loss). If the Company intends to sell the security or will be more likely than not required to sell the security, the full unrealized loss is recognized in earnings.

In periods after the recognition of an other-than-temporary impairment loss for MBS, the Company shall account for the other-than-temporarily impaired MBS as if the MBS had been purchased on the measurement date of the other-than-temporary impairment at an amortized cost basis equal to the previous amortized cost basis less the other-than-temporary impairment recognized in earnings. For MBS for which other-than-temporary impairments were recognized in earnings, the difference between the new amortized cost basis and the cash flows expected to be collected shall be accreted into interest income using the effective interest method. The Company shall continue to estimate the present value of cash flows expected to be collected over the life of the MBS. For all other MBS, if upon subsequent evaluation, there is an increase in the cash flows expected to be collected or if actual cash flows are greater than cash flows previously expected, such changes shall be accounted for as a prospective adjustment to the accretable yield in accordance with Subtopic 310-30 even if the MBS would not otherwise be within the scope of that Subtopic. Subsequent increases and decreases in the fair value of the MBS that are not other-than-temporary shall be included in other comprehensive income.

Please see Note 3 for additional information related to the Company's evaluation for other-than-temporary impairments.

Securitized Mortgage Loans.  Securitized mortgage loans consist of loans pledged to support the repayment of securitization financing bonds issued by the Company. The associated securitization financing bonds are treated as debt of the Company and are presented as a portion of "non-recourse collateralized financing" on the consolidated balance sheet. In accordance with ASC Topic 310-10, the Company's securitized mortgage loans are reported at amortized cost.  Securitized mortgage loans can only be sold subject to the lien of the respective securitization financing indenture. An allowance has been established for currently existing and probable losses on such loans as further discussed below.  

Other Investments.  Other investments include unsecuritized single-family and commercial mortgage loans which are carried at amortized cost in accordance with ASC Topic 310-10. An allowance has been established for currently existing and probable losses on these loans as further discussed below.

Allowance for Loan Losses.An allowance for loan losses has been estimated and established for currently existing and probable losses for securitized and unsecuritized mortgage loans that are considered impaired in accordance with ASC Topic 310-10.  Provisions made to increase the allowance are charged as a current period expense.  Commercial mortgage loans are secured by income-producing real estate and are evaluated individually for impairment when the debt service coverage ratio on the mortgage loan is less than 1:1 or when the mortgage loan is delinquent.  Commercial mortgage loans not evaluated for individual impairment are evaluated for a general allowance.  Certain of the commercial mortgage loans are covered by mortgage loan guarantees that limit the Company’s exposure on these mortgage loans.  Single-family mortgage loans are considered homogeneous and are evaluated on a pool basis for a general allowance.

The Company considers various factors in determining its specific and general allowance requirements, including whether a loan is delinquent, the Company’s historical experience with similar types of loans, historical cure rates of delinquent loans, and historical and anticipated loss severity of the mortgage loans as they are liquidated.  The factors may differ by mortgage loan type (e.g., single-family versus commercial) and collateral type (e.g., multifamily versus office property).  The allowance for loan losses is evaluated and adjusted periodically by management based on the actual and estimated timing and amount of probable credit losses, using the above factors, as well as industry loss experience.

Repurchase Agreements

Repurchase agreements are treated as financings in accordance with the provision of ASC Topic 860 under which the Company pledges its securities as collateral to secure a loan, which is equal in value to a specified percentage of the estimated fair value of the pledged collateral. The Company retains beneficial ownership of the pledged collateral.  At the maturity of a repurchase agreement, the Company is required to repay the loan and concurrently receives back its pledged collateral from the lender or, with the consent of the lender, the Company may renew the agreement at the then prevailing financing rate.  A repurchase agreement lender may require the Company to pledge additional collateral in the event of a decline in the fair value of the collateral pledged.  Repurchase agreement financing is recourse to the Company and the assets pledged.  Most of the Company’s repurchase agreements are based on the September 1996 version of the Bond Market Association Master Repurchase Agreement, which generally provides that the lender, as buyer, is responsible for obtaining collateral valuations from a generally recognized source agreed to by both the Company and the lender, or, in an instance when such source is not available, the value determination is made by the lender.

Derivative Instruments

The Company may enter into interest rate swap agreements, interest rate cap agreements, interest rate floor agreements, financial forwards, financial futures and options on financial futures (“interest rate agreements”) to manage its sensitivity to changes in interest rates.  The Company accounts for its interest rate agreements under ASC Topic 815, designating each as either a cash flow hedging position or a trading position using criteria established therein.  In order to qualify as a cash flow hedge, ASC Topic 815 requires formal documentation to be prepared at the inception of the interest rate agreement that meets certain conditions.  If these conditions are not met, an interest rate agreement will be classified as a trading position.

For interest rate agreements designated as trading positions, the Company records these instruments at fair value on the Company’s balance sheet in accordance with ASC Topic 815.  Changes in their market value are measured at each reporting date and recognized in the current period’s consolidated statement of income within "fair value adjustments, net".

For interest rate agreements designated as cash flow hedges, the Company evaluates the effectiveness of these hedges against the financial instrument being hedged.  The effective portion of the hedge relationship on an interest rate agreement designated as a cash flow hedge is reported in AOCI and is later reclassified into the consolidated statement of income in the same period during which the hedged transaction affects earnings.  The ineffective portion of such hedge is immediately reported in the current period’s consolidated statement of income.  These derivative instruments are carried at fair value on the Company’s consolidated balance sheet in accordance with ASC Topic 815.  Cash posted to meet margin calls, if any, is included on the consolidated balance sheet in other assets.

In the event a hedging instrument is terminated, any basis adjustments or changes in the fair value of hedges recorded in AOCI are recognized into income or expense in conjunction with the original hedge or hedged exposure.

If the underlying asset, liability or commitment is sold or matures, the hedge is deemed partially or wholly ineffective, or if the criterion that was established at the time the hedging instrument was entered into no longer exists, the interest rate agreement no longer qualifies as a designated hedge.  Under these circumstances, such changes in the market value of the interest rate agreement are recognized in the current period’s statement of income.

The Company has elected to use the portfolio exception in ASC 820-10-35-18D with respect to measuring counterparty credit risk for derivative instruments. The Company manages credit risk for its derivative positions on a counterparty-by-counterparty basis (that is, on the basis of its net portfolio exposure with each counterparty), consistent with its risk management strategy for such transactions. The Company manages credit risk by considering indicators of risk such as credit ratings, and by negotiating terms in its ISDA master netting arrangements and, if applicable, any associated Credit Support Annex documentation, with each individual counterparty. Since the effective date of ASC 820, management has monitored and measured credit risk and calculated credit valuation adjustments for its derivative transactions on the basis of its relationships at the counterparty portfolio level. Management receives reports from an independent third-party valuation specialist on a monthly basis providing the credit valuation adjustments at the counterparty portfolio level for purposes of reviewing and managing its credit risk exposures. Since the portfolio exception applies only to the fair value measurement and not to financial statement presentation, the portfolio-level adjustments are then allocated in a reasonable and consistent manner each period to the individual assets or liabilities that make up the group, in accordance with other applicable accounting guidance and the Company's accounting policy elections.

Although MBS have characteristics that meet the definition of a derivative instrument, ASC 815 specifically excludes these instruments from its scope because they are accounted for as debt securities under ASC 320.

Interest Income, Premium Amortization, and Discount Accretion 

Interest income is accrued based on the outstanding principal balance (or notional balance in the case of interest-only, or "IO", securities) on the Company's investment securities and their contractual terms. Premiums and discounts on Agency and non-Agency MBS and on loans are recognized over the expected life of the investment using the effective yield method in accordance with ASC Topic 310-20. Adjustments to premium amortization are made for actual prepayment activity as well as changes in projected future cash flows in accordance with 320-10. Interest income on non-Agency MBS that are rated lower than “AA” are recognized over the expected life as adjusted for the estimated prepayments and credit losses of the securities.  Actual prepayment and any credit losses experienced are compared to projected prepayments and credit losses, and effective yields are adjusted when those amounts differ.

The Company's projections of future cash flows are based on input and analysis received from external sources and internal models, and includes assumptions about the amount and timing of credit losses, loan prepayment rates, fluctuations in interest rates, and other factors. On at least a quarterly basis, the Company reviews and makes any necessary adjustments to its cash flow projections and updates the yield recognized on these assets.

For securities, the accrual of interest is discontinued when, in the opinion of management, it is probable that all amounts contractually due will not be collected, and in certain instances, as a result of the other-than-temporary impairment analysis. For loans, the accrual of interest is discontinued when, in the opinion of management, the interest is not collectible in the normal course of business, when the loan is significantly past due or when the primary servicer of the loan fails to advance the interest and/or principal due on the loan.  Loans are considered past due when the borrower fails to make a timely payment in accordance with the underlying loan agreement.  All interest accrued but not collected for investments that are placed on a non-accrual status or are charged-off is reversed against interest income.  Interest on these investments is accounted for on the cash-basis or cost-recovery method until qualifying for return to accrual status.  Investments are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured.

Stock-Based Compensation

Pursuant to the Company’s 2009 Stock and Incentive Plan ("SIP"), the Company may grant stock-based compensation to eligible employees, directors or consultants or advisers to the Company, including stock awards, stock options, stock appreciation rights (“SARs”), dividend equivalent rights, performance shares, and restricted stock units.  Currently, the Company's stock options and restricted stock issued under this plan may be settled only in shares of its common stock, and therefore are treated as equity awards with their fair value measured at the grant date as required by ASC Topic 718. Outstanding SARs issued by the Company may be settled only in cash, and therefore have been treated as liability awards with their fair value estimated at the grant date and remeasured at the end of each reporting period using the Black-Scholes option valuation model as required by ASC Topic 718.  Please see Note 10 for additional disclosures regarding the Company's SIP.

Contingencies

In the normal course of business, there are various lawsuits, claims, and other contingencies pending against the Company.  We evaluate whether to establish provisions for estimated losses from those matters in accordance with ASC Topic 450, which states that a liability is recognized for a contingent loss when: (a) the underlying causal event has occurred prior to the balance sheet date; (b) it is probable that a loss has been incurred; and (c) there is a reasonable basis for estimating that loss. A liability is not recognized for a contingent loss when it is only possible or remotely possible that a loss has been incurred, however, possible contingent losses shall be disclosed. Please refer to Note 12 for details on the most significant matters currently pending.

Recent Accounting Pronouncements

There are no recently issued accounting pronouncements that are expected to materially impact the Company's financial condition or results of operations which are not effective as of the date of this Quarterly Report on Form 10-Q.

XML

Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
ASSETS
Pledged MBS	$ 4,127,459	$ 3,967,134
Shareholders' Equity:
Preferred Stock, Par Value Per Share	$ 0.01	$ 0.01
Preferred Stock, Shares Authorized	8,000,000	8,000,000
Preferred Stock, Shares Issued	2,300,000	2,300,000
Preferred Stock, Shares Outstanding	2,300,000	2,300,000
Preferred Stock, aggregate liquidation preference	$ 58,532	$ 58,532
Common stock, par value	$ 0.01	$ 0.01
Common Stock, Shares Authorized	100,000,000	100,000,000
Common Stock, Shares, Issued	54,835,420	54,268,915
Common stock, shares outstanding	54,835,420	54,268,915

XML

Commitments and Contingencies

3 Months Ended

Mar. 31, 2013

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

COMMITMENTS AND CONTINGENCIES

The Company records accruals for certain outstanding legal proceedings, investigations or claims when it is probable that a liability will be incurred and the amount of the loss can be reasonably estimated. The Company evaluates, on a quarterly basis, developments in legal proceedings, investigations and claims that could affect the amount of any accrual, as well as any developments that would make a loss contingency both probable and reasonably estimable. When a loss contingency is not both probable and reasonably estimable, the Company does not accrue the loss. However, if the loss (or an additional loss in excess of the accrual) is at least a reasonable possibility and material, then the Company discloses a reasonable estimate of the possible loss or range of loss, if such reasonable estimate can be made. If the Company cannot make a reasonable estimate of the possible material loss, or range of loss, then that fact is disclosed.

The Company and its subsidiaries are parties to various legal proceedings, including those described below.  Although the ultimate outcome of these legal proceedings cannot be ascertained at this time, and the results of legal proceedings cannot be predicted with certainty, the Company believes, based on current knowledge, that the resolution of any of these proceedings, including those described below, will not have a material effect on the Company’s consolidated financial condition or liquidity.  However, the resolution of any of the proceedings described below could have a material impact on consolidated results of operations or cash flows in a given future reporting period as the proceedings are resolved.

One of the Company's subsidiaries, GLS Capital, Inc. (“GLS”), and the County of Allegheny, Pennsylvania ("Allegheny County") are defendants in a class action lawsuit filed in 1997 in the Court of Common Pleas of Allegheny County, Pennsylvania (the “Court”).  Between 1995 and 1997, GLS purchased from Allegheny County delinquent property tax lien receivables for properties located in the county.  The plaintiffs in this matter alleged that GLS improperly recovered or sought recovery for certain fees, costs, interest, and attorneys' fees and expenses in connection with GLS' collection of the property tax lien receivables.   The Court granted class action status and defined the class to include only owners of real estate in Allegheny County who paid an attorneys' fee between 1996 and 2003 in connection with the forced collection of delinquent property tax receivables by GLS (generally through the initiation of a foreclosure action).  Amendments to the statute that governs the collection of delinquent tax liens in Pennsylvania, related case law, and GLS' filing of one or more successful motions for summary judgment resulted in the dismissal of certain claims against GLS and narrowed the issues being litigated to whether attorneys' fees and related expenses charged by GLS in connection with the collection of the receivables were reasonable.  Such attorneys' fees and lien costs were assessed by GLS in its collection efforts pursuant to the prevailing Allegheny County ordinance.  On April 23, 2012, as a result of a petition to discontinue filed by the plaintiffs, the Court dismissed the remaining claims against GLS. Plaintiffs subsequently appealed the dismissal to the Pennsylvania Commonwealth Court of Appeals. The claims made by plaintiffs on appeal include only the legality of charging and recovering attorneys' fees and tax lien revival and assignment costs from the class members. Plaintiffs have not enumerated their damages in this matter.

The Company, GLS, and Allegheny County are named defendants in a putative class action lawsuit filed in June 2012 in the Court of Common Pleas of Allegheny County, Pennsylvania. The lawsuit relates to the activities of GLS in Allegheny County related to the purchase and collection of delinquent property tax lien receivables discussed above. The purported class in this action consists of owners of real estate in Allegheny County whose property is or has been subject to a tax lien filed by Allegheny County that Allegheny County either retained or sold to GLS and who were billed by Allegheny County or GLS for attorneys' fees, interest, and certain other fees and who sustained economic damages on and after August 14, 2003. The putative class allegations are that Allegheny County, GLS, and the Company violated the class's constitutional due process rights in connection with delinquent tax collection efforts. There are also allegations that amounts recovered from the class by GLS and / or Allegheny County are an unconstitutional taking of private property.  The claims against the Company are solely based upon its ownership of GLS. The complaint requests that the Court order GLS to account for amounts alleged to have been collected in violation of the putative class members' rights and create a constructive trust for the return of such amounts to members of the purported class. The same class previously filed substantially the same lawsuit in 2004 against GLS and Allegheny County (ACORN v. County of Allegheny and GLS Capital, Inc.), and GLS's Motion for Summary Judgment is pending in that action.  The Company believes the claims are without merit and intends to defend against them vigorously in this matter.

The Company and DCI Commercial, Inc. ("DCI"), a former affiliate of the Company and formerly known as Dynex Commercial, Inc., are appellees (or respondents) in the matter of Basic Capital Management, Inc. et al.  (collectively, “BCM” or the “Plaintiffs”) versus DCI et al. currently pending in state court in Dallas, Texas.  The matter was initially filed in the state court in Dallas County, Texas in April 1999 against DCI, and in March 2000, BCM amended the complaint and added the Company as a defendant. Following a trial court decision in favor of both the Company and DCI, Plaintiffs appealed, seeking reversal of the trial court's judgment and rendition of judgment against the Company for alleged breach of loan agreements for tenant improvements in the amount of $250. Plaintiffs also sought reversal of the trial court's judgment and rendition of judgment against DCI in favor of BCM under two mutually exclusive damage models, for $2,200 and $25,600, respectively, related to the alleged breach by DCI of a $160,000 “master” loan commitment. Plaintiffs also sought reversal and rendition of a judgment in their favor for attorneys' fees in the amount of $2,100. Alternatively, Plaintiffs sought a new trial. On February 13, 2013, the Fifth Circuit Court of Appeals in Dallas, Texas (the “Fifth Circuit”) ruled on Plaintiff's appeal, affirming the previous decision of no liability with respect to the Company, and reversing the previous decision of no liability with respect to DCI relating to the $160,000 “master” loan commitment. The Fifth Circuit ordered a new trial to determine the amount of attorneys' fees and prejudgment and post-judgment interest due to Plaintiffs and reinstated the $25,600 damage award against DCI. The Fifth Circuit's decision appears to permit Plaintiffs to recover the costs of their appeal from both the Company and DCI. The Company and DCI have filed a motion for rehearing with the Fifth Circuit on the issue of the costs. As part of the motion for rehearing, DCI also challenged the $25,600 damage award and the decision regarding attorneys' fees. Management believes the Company will not be obligated for any amounts that may ultimately be awarded against DCI.

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Document and Entity Information	3 Months Ended
	Mar. 31, 2013	May 01, 2013
Entity Information [Line Items]
Entity Registrant Name	DYNEX CAPITAL INC
Entity Central Index Key	0000826675
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Document Type	10-Q
Document Period End Date	Mar. 31, 2013
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Common Stock, Shares Outstanding		54,940,082

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Subsequent Events

3 Months Ended

Mar. 31, 2013

Subsequent Events [Abstract]

Subsequent Events

SUBSEQUENT EVENTS

Management has evaluated events and circumstances occurring as of and through the date this Quarterly Report on Form 10-Q was filed with the SEC and made available to the public and has determined that there have been no significant events or circumstances that qualify as a "recognized" subsequent event as defined by ASC Topic 855.

Management has determined that the following significant event(s), which occurred subsequent to March 31, 2013 and before the date this Quarterly Report on Form 10-Q was filed with the SEC and made available to the public, qualify as "nonrecognized" subsequent events as defined by ASC Topic 855:

On April 19, 2013, the Company closed an offering of 2,250,000 shares of 7.625% Series B Cumulative Redeemable Preferred Stock, par value of $0.01 per share and liquidation preference $25.00 per share, which includes 250,000 shares issued pursuant to an option to purchase additional shares that was exercised by the underwriters. The Company received net proceeds before expenses of $54,478, including the additional proceeds from the underwriters' overallotment option which was fully exercised. The Company anticipates using the proceeds to acquire additional investments consistent with its investment strategy and for general corporate purposes, which may include, among other things, repayment of maturing obligations, capital expenditures and working capital.

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Consolidated Statements of Income (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Interest income:
Mortgage-backed securities	$ 32,039	$ 24,463
Securitized mortgage loans	924	1,504
Other investments	19	305
Total interest income	32,982	26,272
Interest expense:
Repurchase agreements	10,218	6,644
Non recourse collateralized financing	238	481
Total interest expense	10,456	7,125
Net interest income	22,526	19,147
Provision for loan losses	(261)	(60)
Net interest income after provision for loan losses	22,265	19,087
Gain on sale of investments, net	1,391	351
Fair value adjustments, net	(157)	(210)
Other (expense) income, net	(88)	369
General and administrative expenses:
Compensation and benefits	(2,358)	(1,798)
Other general and administrative	(1,450)	(1,323)
Net income	19,603	16,476
Preferred Stock Dividends	(1,222)	0
Net income to common shareholders	$ 18,381	$ 16,476
Weighted average common shares:
Basic	54,300,020	49,480,426
Diluted	54,300,774	49,480,895
Net income per common share:
Basic Net Income Per Common Share	$ 0.34	$ 0.33
Diluted Net Income Per Common Share	$ 0.34	$ 0.33
Dividends declared per common share	$ 0.29	$ 0.28

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Derivatives

3 Months Ended

Mar. 31, 2013

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivatives

DERIVATIVES

As part of its risk management activities, the Company’ utilizes derivative financial instruments to manage its exposure to cash flow volatility and market value risk related to interest rate risk on the Company's investments and their associated financing. The Company's derivative instruments are comprised entirely of interest rate swaps which are designated as either hedging instruments or trading instruments.  The tables below summarize information about the Company’s derivative financial instruments on the balance sheet as of the dates indicated:  

		March 31, 2013							December 31, 2012
Accounting Designation:	Balance Sheet Location:	Fair Value			Aggregate Notional Amount		Weighted-average Fixed Rate Swapped		Fair Value			Aggregate Notional Amount		Weighted-average Fixed Rate Swapped
Hedging instruments		$	(35,314	)	$	1,410,000	1.51	%	$	(39,813	)	$	1,435,000	1.50	%
Trading instruments		(2,373		)	27,000		2.88	%	(2,724		)	27,000		2.88	%
	Derivative liabilities	$	(37,687	)					$	(42,537	)

Included in the balance as of March 31, 2013 is one forward-starting interest rate swap with a notional balance of $25,000 and a weighted average pay-fixed rate of 1.70% which will not be effective until the second quarter of 2013.

The following table summarizes the contractual maturities remaining for the Company’s outstanding interest rate swap agreements as of March 31, 2013:

Remaining Maturity	Notional Amount: Trading		Notional Amount: Hedging		Notional Amount: Total		Number of Swaps	Weighted-Average Fixed Rate Swapped
0-12 months	$	—	$	300,000	$	300,000	5	1.29	%
13-36 months	—		490,000		490,000		11	1.76	%
37-60 months	27,000		220,000		247,000		10	1.29	%
Over 60 months	—		400,000		400,000		14	1.60	%
	$	27,000	$	1,410,000	$	1,437,000	40	1.54	%

With respect to hedging instruments, the Company’s objective for using interest rate swaps is to minimize its exposure to the risk of cash flow volatility from increased interest expense on its repurchase agreement borrowings.  As repurchase agreements are short-term in nature, as they mature, the interest rate on the new repurchase agreement resets to a market interest rate. This sequential rollover borrowing program creates a variable interest expense pattern.  The changes in the cash flows of the interest rate swaps are expected to be highly effective at offsetting changes in the interest portion of the cash flows expected to be paid at maturity of each borrowing.

The table below presents the effect of the derivatives designated as hedging instruments on the Company’s consolidated statement of comprehensive income for the periods indicated:

Type of Derivative Designated as Cash Flow Hedge	Amount of Gain (Loss) Recognized in OCI (Effective Portion)	Location of Amount Reclassified from OCI into Net Income (Effective Portion)	Amount Reclassified from OCI into Net Income (Effective Portion)	Location of Amount Recognized in Net Income (Ineffective Portion)	Amount of Loss Recognized in Net Income (Ineffective Portion)
For the three months ended March 31, 2013:
Interest rate swaps	$437	Interest expense	$4,103	Other income, net	$(41)
For the three months ended March 31, 2012:
Interest rate swaps	$(3,087)	Interest expense	$3,266	Other income, net	$(62)

As of March 31, 2013, the Company estimates that $17,955 will be reclassified from AOCI into earnings as an increase to interest expense within the next 12 months.

The Company’s objective for designating certain interest rate swaps as trading instruments is to offset the changes in market value for a portion of its Agency CMBS investments that are also designated as trading. The table below presents the amount of loss recognized in net income for the changes in fair value of the derivatives designated as trading instruments for the periods indicated:

Type of Derivative Designated as Trading	Location On Income Statement	Three Months Ended
		March 31, 2013			March 31, 2012
Interest rate swaps	Fair value adjustments, net	$	(17	)	$	(74	)

These interest rate swap agreements contain various covenants related to the Company’s credit risk.  Specifically, if the Company defaults on any of its indebtedness, including those circumstances whereby repayment of the indebtedness has not yet been accelerated by the lender, or is declared in default of any of its covenants with any counterparty, then the Company could also be declared in default of its derivative obligations. Additionally, the agreements outstanding with its derivative counterparties allow those counterparties to require settlement of its outstanding derivative transactions if the Company fails to earn GAAP net income greater than one dollar as measured on a rolling two quarter basis.  These interest rate agreements also contain provisions whereby, if the Company fails to maintain a minimum net amount of shareholders’ equity, then the Company may be declared in default on its derivative obligations.  As of March 31, 2013, the Company had derivatives in a net liability position with its derivative counterparties for which it had pledged Agency MBS with a fair value of $40,568 and cash of $38 as collateral.  If the Company had breached any of these agreements as of March 31, 2013, it could have been required to settle those derivatives at their estimated termination value of $38,560, which includes accrued interest but excludes any adjustment for nonperformance risk. As of March 31, 2013, the Company was in compliance with all covenants.

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Allowance for Loan Losses

3 Months Ended

Mar. 31, 2013

ALLOWANCE FOR LOAN LOSSES [Abstract]

Allowance for Loan Losses

ALLOWANCE FOR LOAN LOSSES

As discussed in Note 1, the Company estimates for currently existing and probable losses for its mortgage loans that are considered impaired. A loan can be considered impaired even if it is not delinquent. The following table summarizes the aggregate activity for the portion of the allowance for loan losses that relates to the securitized mortgage loan portfolio for the periods indicated:

	Three Months Ended
	March 31,
	2013						2012
	Commercial			Single-family			Commercial			Single-family
Allowance at beginning of period	$	150		$	289		$	2,268		$	231
Provision for loan losses	—			261			60			—
Credit losses, net of recoveries	(5		)	(435		)	(987		)	—
Allowance at end of period	$	145		$	115		$	1,341		$	231

The following table summarizes information regarding the Company's impaired securitized commercial and single-family mortgage loans as of March 31, 2013 and December 31, 2012:

	March 31, 2013				March 31, 2012
	Commercial		Single-family		Commercial		Single-family
Unpaid principal balance of impaired securitized loans	$	—	$	4,171	$	1,814	$	3,029
Basis adjustments related to impaired securitized loans	—		62		—		59
Amortized cost basis of impaired securitized loans	$	—	$	4,233	$	1,814	$	3,088

For the securitized single-family mortgage loans identified as impaired as of March 31, 2013, the Company estimates that it has recognized approximately $61 of interest income for the three months ended March 31, 2013 compared to $40 for the three months ended March 31, 2012 for the securitized single-family mortgage loans identified as impaired as of March 31, 2012. Although the Company did not have any specific securitized commercial mortgage loans identified as impaired as of March 31, 2013, it is currently maintaining a general allowance for commercial mortgage loan losses of $145. The Company recognized $0 of interest income on impaired commercial securitized mortgage loans for the three months ended March 31, 2013compared to an estimate of $25 for the three months ended March 31, 2012 for the securitized commercial mortgage loans identified as impaired as of March 31, 2012.

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Allowance for Loan Losses (Tables)

3 Months Ended

Mar. 31, 2013

ALLOWANCE FOR LOAN LOSSES [Abstract]

Allowance for Credit Losses on Financing Receivables [Table Text Block]

The following table summarizes the aggregate activity for the portion of the allowance for loan losses that relates to the securitized mortgage loan portfolio for the periods indicated:

	Three Months Ended
	March 31,
	2013						2012
	Commercial			Single-family			Commercial			Single-family
Allowance at beginning of period	$	150		$	289		$	2,268		$	231
Provision for loan losses	—			261			60			—
Credit losses, net of recoveries	(5		)	(435		)	(987		)	—
Allowance at end of period	$	145		$	115		$	1,341		$	231

Impaired Financing Receivables [Table Text Block]

nformation regarding the Company's impaired securitized commercial and single-family mortgage loans as of March 31, 2013 and December 31, 2012:

	March 31, 2013				March 31, 2012
	Commercial		Single-family		Commercial		Single-family
Unpaid principal balance of impaired securitized loans	$	—	$	4,171	$	1,814	$	3,029
Basis adjustments related to impaired securitized loans	—		62		—		59
Amortized cost basis of impaired securitized loans	$	—	$	4,233	$	1,814	$	3,088

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Summary of Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2013

Accounting Policies [Abstract]

Basis of Presentation [Policy Text Block]

Basis of Presentation

The accompanying consolidated financial statements of Dynex Capital, Inc. and its qualified real estate investment trust (“REIT”) subsidiaries and its taxable REIT subsidiary (together, “Dynex” or the “Company”) have been prepared in accordance with the instructions to the Quarterly Report on Form 10-Q and Article 10, Rule 10-01 of Regulation S-X promulgated by the Securities and Exchange Commission (the “SEC”).  Accordingly, they do not include all of the information and notes required by accounting principles generally accepted in the United States of America (“GAAP”) for complete financial statements.  In the opinion of management, all significant adjustments, consisting of normal recurring accruals considered necessary for a fair presentation of the consolidated financial statements, have been included.  Operating results for the three months ended March 31, 2013 are not necessarily indicative of the results that may be expected for any other interim periods or for the entire year ending December 31, 2013.  The unaudited consolidated financial statements included herein should be read in conjunction with the audited financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2012 filed with the SEC.

Certain items in the prior years' consolidated financial statements have been reclassified to conform to the current year’s presentation.  The Company’s consolidated balance sheet as of December 31, 2012 now presents its Agency and non-Agency mortgage-backed securities as "mortgage-backed securities, at fair value". In addition, the Company's consolidated statement of income for the three months ended March 31, 2012 now presents its interest income from Agency and non-Agency mortgage-backed securities as "interest income-mortgage-backed securities". These presentation changes have no effect on reported total assets, total liabilities, results of operations, or cash flow activities.

Consolidation [Policy Text Block]

Consolidation

The consolidated financial statements include the accounts of the Company, its qualified REIT subsidiaries and its taxable REIT subsidiary.  The consolidated financial statements represent the Company’s accounts after the elimination of intercompany balances and transactions.  The Company consolidates entities in which it owns more than 50% of the voting equity and control does not rest with others and variable interest entities in which it is determined to be the primary beneficiary in accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 810-10.  The Company follows the equity method of accounting for investments with greater than a 20% and less than 50% interest in partnerships and corporate joint ventures or when it is able to influence the financial and operating policies of the investee but owns less than 50% of the voting equity. As of March 31, 2013 and December 31, 2012, the Company did not have any investments in which it owned less than a 50% interest in the voting equity.

In accordance with ASC Topic 810-10, the Company also consolidates certain trusts through which it has securitized mortgage loans. Additional information regarding the accounting policy for securitized mortgage loans is provided below under "Investments".

Use of Estimates [Policy Text Block]

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements as well as the reported amounts of revenue and expenses during the reported period.  Actual results could differ from those estimates.  The most significant estimates used by management include but are not limited to fair value measurements of its investments, allowance for loan losses, other-than-temporary impairments, commitments and contingencies, and amortization of premiums and discounts. These items are discussed further below within this note to the consolidated financial statements.

Federal Income Taxes [Policy Text Block]

Federal Income Taxes

The Company believes it has complied with the requirements for qualification as a REIT under the Internal Revenue Code of 1986, as amended (the “Code”).  As such, the Company believes that it qualifies as a REIT for federal income tax purposes, and it generally will not be subject to federal income tax on the amount of its income or gain that is distributed as dividends to shareholders.  The Company uses the calendar year for both tax and financial reporting purposes.  There may be differences between taxable income and income computed in accordance with GAAP.

Cash and Cash Equivalents [Policy Text Block]

 Cash and Cash Equivalents

Cash and cash equivalents include cash on hand and highly liquid investments with original maturities of three months or less.

Investments [Policy Text Block]

Investments

The Company’s investments include Agency mortgage-backed securities ("MBS"), non-Agency MBS, securitized mortgage loans, and other investments.

Agency MBS. The Company accounts for its investment in Agency MBS in accordance with ASC Topic 320, which requires that investments in debt and equity securities be designated as either “held-to-maturity,” “available-for-sale” or “trading” at the time of acquisition.  As of March 31, 2013, the majority of the Company's Agency MBS are designated as available-for-sale (or "AFS") with the remainder designated as trading.  Although the Company generally intends to hold its available-for-sale securities until maturity, it may, from time to time, sell any of these securities as part of the overall management of its business.  The available-for-sale designation provides the Company with this flexibility.

All of the Company’s Agency MBS are recorded at their fair value on the consolidated balance sheet. In accordance with ASC Topic 820, the Company determines the fair value of its Agency MBS based upon prices obtained from a third-party pricing service and broker quotes. The Company's application of ASC Topic 820 guidance is discussed further in Note 9.  Changes in the fair value of Agency MBS designated as trading are recognized in net income within “fair value adjustments, net”.   Gains (losses) realized upon the sale, impairment, or other disposal of a trading security are also recognized within “fair value adjustments, net”.  Alternatively, changes in the fair value of Agency MBS designated as available-for-sale are reported in other comprehensive income as unrealized gains (losses) until the security is collected, disposed of, or determined to be other than temporarily impaired.  Upon the sale of an available-for-sale security, any unrealized gain or loss is reclassified out of accumulated other comprehensive income (“AOCI”) into net income as a realized “gain (loss) on sale of investments, net” using the specific identification method.

Non-Agency MBS.  The Company accounts for its investment in non-Agency MBS in accordance with ASC Topic 320.  As of March 31, 2013, all of the Company’s non-Agency MBS are designated as available-for-sale and are recorded at their fair value on the consolidated balance sheet.  Changes in fair value are reported in other comprehensive income until the security is collected, disposed of, or determined to be other than temporarily impaired. Like Agency MBS, the Company generally intends to hold its investments in non-Agency MBS until maturity, but it may, from time to time sell any of these securities as part of the overall management of its business.  Upon the sale of an available-for-sale security, any unrealized gain or loss is reclassified out of AOCI into net income as a realized “gain (loss) on sale of investments, net” using the specific identification method.

In accordance with ASC Topic 820, the Company determines the fair value for the majority of its non-Agency MBS based upon prices obtained from a third-party pricing service and broker quotes.  The remainder of the non-Agency MBS are valued by discounting the estimated future cash flows derived from cash flow models that utilize information such as the security’s coupon rate, estimated prepayment speeds, expected weighted average life, collateral composition, estimated future interest rates, expected losses, credit enhancement, as well as certain other relevant information. The Company's application of ASC Topic 820 guidance is discussed further in Note 9.

Mortgage-backed securities pending settlement.  Mortgage-backed securities pending settlement include MBS where the Company has contractually committed to purchasing MBS but the trade has not yet settled as of the balance sheet date. A corresponding liability for the cost of the settlement plus accrued interest is recorded as "payable for mortgage-backed securities pending settlement" in the accompanying consolidated financial statements.

Other-than-Temporary Impairment.The Company evaluates all MBS in its investment portfolio for other-than-temporary impairments by applying the guidance prescribed in ASC Topic 320-10. The Company compares the amortized cost of each security in an unrealized loss position against the present value of expected future cash flows of the security. If there has been a significant adverse change in the cash flow expectations for a security resulting in the its amortized cost becoming greater than the present value of its expected future cash flows, an other-than-temporary credit impairment has occurred. If the Company does not intend to sell and is not more likely than not required to sell the security, the credit loss is recognized in earnings and the balance of the unrealized loss is recognized in other comprehensive income (loss). If the Company intends to sell the security or will be more likely than not required to sell the security, the full unrealized loss is recognized in earnings.

In periods after the recognition of an other-than-temporary impairment loss for MBS, the Company shall account for the other-than-temporarily impaired MBS as if the MBS had been purchased on the measurement date of the other-than-temporary impairment at an amortized cost basis equal to the previous amortized cost basis less the other-than-temporary impairment recognized in earnings. For MBS for which other-than-temporary impairments were recognized in earnings, the difference between the new amortized cost basis and the cash flows expected to be collected shall be accreted into interest income using the effective interest method. The Company shall continue to estimate the present value of cash flows expected to be collected over the life of the MBS. For all other MBS, if upon subsequent evaluation, there is an increase in the cash flows expected to be collected or if actual cash flows are greater than cash flows previously expected, such changes shall be accounted for as a prospective adjustment to the accretable yield in accordance with Subtopic 310-30 even if the MBS would not otherwise be within the scope of that Subtopic. Subsequent increases and decreases in the fair value of the MBS that are not other-than-temporary shall be included in other comprehensive income.

Securitized Mortgage Loans, Other Investments [Policy Text Block]

Securitized Mortgage Loans.  Securitized mortgage loans consist of loans pledged to support the repayment of securitization financing bonds issued by the Company. The associated securitization financing bonds are treated as debt of the Company and are presented as a portion of "non-recourse collateralized financing" on the consolidated balance sheet. In accordance with ASC Topic 310-10, the Company's securitized mortgage loans are reported at amortized cost.  Securitized mortgage loans can only be sold subject to the lien of the respective securitization financing indenture. An allowance has been established for currently existing and probable losses on such loans as further discussed below.  

Other Investments.  Other investments include unsecuritized single-family and commercial mortgage loans which are carried at amortized cost in accordance with ASC Topic 310-10. An allowance has been established for currently existing and probable losses on these loans as further discussed below.

Allowance for Loan Losses [Policy Text Block]

Allowance for Loan Losses.An allowance for loan losses has been estimated and established for currently existing and probable losses for securitized and unsecuritized mortgage loans that are considered impaired in accordance with ASC Topic 310-10.  Provisions made to increase the allowance are charged as a current period expense.  Commercial mortgage loans are secured by income-producing real estate and are evaluated individually for impairment when the debt service coverage ratio on the mortgage loan is less than 1:1 or when the mortgage loan is delinquent.  Commercial mortgage loans not evaluated for individual impairment are evaluated for a general allowance.  Certain of the commercial mortgage loans are covered by mortgage loan guarantees that limit the Company’s exposure on these mortgage loans.  Single-family mortgage loans are considered homogeneous and are evaluated on a pool basis for a general allowance.

The Company considers various factors in determining its specific and general allowance requirements, including whether a loan is delinquent, the Company’s historical experience with similar types of loans, historical cure rates of delinquent loans, and historical and anticipated loss severity of the mortgage loans as they are liquidated.  The factors may differ by mortgage loan type (e.g., single-family versus commercial) and collateral type (e.g., multifamily versus office property).  The allowance for loan losses is evaluated and adjusted periodically by management based on the actual and estimated timing and amount of probable credit losses, using the above factors, as well as industry loss experience.

Repurchase Agreements [Policy Text Block]

Repurchase Agreements

Repurchase agreements are treated as financings in accordance with the provision of ASC Topic 860 under which the Company pledges its securities as collateral to secure a loan, which is equal in value to a specified percentage of the estimated fair value of the pledged collateral. The Company retains beneficial ownership of the pledged collateral.  At the maturity of a repurchase agreement, the Company is required to repay the loan and concurrently receives back its pledged collateral from the lender or, with the consent of the lender, the Company may renew the agreement at the then prevailing financing rate.  A repurchase agreement lender may require the Company to pledge additional collateral in the event of a decline in the fair value of the collateral pledged.  Repurchase agreement financing is recourse to the Company and the assets pledged.  Most of the Company’s repurchase agreements are based on the September 1996 version of the Bond Market Association Master Repurchase Agreement, which generally provides that the lender, as buyer, is responsible for obtaining collateral valuations from a generally recognized source agreed to by both the Company and the lender, or, in an instance when such source is not available, the value determination is made by the lender.

Derivative Instruments [Policy Text Block]

Derivative Instruments

The Company may enter into interest rate swap agreements, interest rate cap agreements, interest rate floor agreements, financial forwards, financial futures and options on financial futures (“interest rate agreements”) to manage its sensitivity to changes in interest rates.  The Company accounts for its interest rate agreements under ASC Topic 815, designating each as either a cash flow hedging position or a trading position using criteria established therein.  In order to qualify as a cash flow hedge, ASC Topic 815 requires formal documentation to be prepared at the inception of the interest rate agreement that meets certain conditions.  If these conditions are not met, an interest rate agreement will be classified as a trading position.

For interest rate agreements designated as trading positions, the Company records these instruments at fair value on the Company’s balance sheet in accordance with ASC Topic 815.  Changes in their market value are measured at each reporting date and recognized in the current period’s consolidated statement of income within "fair value adjustments, net".

For interest rate agreements designated as cash flow hedges, the Company evaluates the effectiveness of these hedges against the financial instrument being hedged.  The effective portion of the hedge relationship on an interest rate agreement designated as a cash flow hedge is reported in AOCI and is later reclassified into the consolidated statement of income in the same period during which the hedged transaction affects earnings.  The ineffective portion of such hedge is immediately reported in the current period’s consolidated statement of income.  These derivative instruments are carried at fair value on the Company’s consolidated balance sheet in accordance with ASC Topic 815.  Cash posted to meet margin calls, if any, is included on the consolidated balance sheet in other assets.

In the event a hedging instrument is terminated, any basis adjustments or changes in the fair value of hedges recorded in AOCI are recognized into income or expense in conjunction with the original hedge or hedged exposure.

If the underlying asset, liability or commitment is sold or matures, the hedge is deemed partially or wholly ineffective, or if the criterion that was established at the time the hedging instrument was entered into no longer exists, the interest rate agreement no longer qualifies as a designated hedge.  Under these circumstances, such changes in the market value of the interest rate agreement are recognized in the current period’s statement of income.

The Company has elected to use the portfolio exception in ASC 820-10-35-18D with respect to measuring counterparty credit risk for derivative instruments. The Company manages credit risk for its derivative positions on a counterparty-by-counterparty basis (that is, on the basis of its net portfolio exposure with each counterparty), consistent with its risk management strategy for such transactions. The Company manages credit risk by considering indicators of risk such as credit ratings, and by negotiating terms in its ISDA master netting arrangements and, if applicable, any associated Credit Support Annex documentation, with each individual counterparty. Since the effective date of ASC 820, management has monitored and measured credit risk and calculated credit valuation adjustments for its derivative transactions on the basis of its relationships at the counterparty portfolio level. Management receives reports from an independent third-party valuation specialist on a monthly basis providing the credit valuation adjustments at the counterparty portfolio level for purposes of reviewing and managing its credit risk exposures. Since the portfolio exception applies only to the fair value measurement and not to financial statement presentation, the portfolio-level adjustments are then allocated in a reasonable and consistent manner each period to the individual assets or liabilities that make up the group, in accordance with other applicable accounting guidance and the Company's accounting policy elections.

Although MBS have characteristics that meet the definition of a derivative instrument, ASC 815 specifically excludes these instruments from its scope because they are accounted for as debt securities under ASC 320.

Interest Income, Premium Amortization, and Discount Accretion [Policy Text Block]

Interest Income, Premium Amortization, and Discount Accretion 

Interest income is accrued based on the outstanding principal balance (or notional balance in the case of interest-only, or "IO", securities) on the Company's investment securities and their contractual terms. Premiums and discounts on Agency and non-Agency MBS and on loans are recognized over the expected life of the investment using the effective yield method in accordance with ASC Topic 310-20. Adjustments to premium amortization are made for actual prepayment activity as well as changes in projected future cash flows in accordance with 320-10. Interest income on non-Agency MBS that are rated lower than “AA” are recognized over the expected life as adjusted for the estimated prepayments and credit losses of the securities.  Actual prepayment and any credit losses experienced are compared to projected prepayments and credit losses, and effective yields are adjusted when those amounts differ.

The Company's projections of future cash flows are based on input and analysis received from external sources and internal models, and includes assumptions about the amount and timing of credit losses, loan prepayment rates, fluctuations in interest rates, and other factors. On at least a quarterly basis, the Company reviews and makes any necessary adjustments to its cash flow projections and updates the yield recognized on these assets.

For securities, the accrual of interest is discontinued when, in the opinion of management, it is probable that all amounts contractually due will not be collected, and in certain instances, as a result of the other-than-temporary impairment analysis. For loans, the accrual of interest is discontinued when, in the opinion of management, the interest is not collectible in the normal course of business, when the loan is significantly past due or when the primary servicer of the loan fails to advance the interest and/or principal due on the loan.  Loans are considered past due when the borrower fails to make a timely payment in accordance with the underlying loan agreement.  All interest accrued but not collected for investments that are placed on a non-accrual status or are charged-off is reversed against interest income.  Interest on these investments is accounted for on the cash-basis or cost-recovery method until qualifying for return to accrual status.  Investments are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured.

Stock-based Compensation [Policy Text Block]

Stock-Based Compensation

Pursuant to the Company’s 2009 Stock and Incentive Plan ("SIP"), the Company may grant stock-based compensation to eligible employees, directors or consultants or advisers to the Company, including stock awards, stock options, stock appreciation rights (“SARs”), dividend equivalent rights, performance shares, and restricted stock units.  Currently, the Company's stock options and restricted stock issued under this plan may be settled only in shares of its common stock, and therefore are treated as equity awards with their fair value measured at the grant date as required by ASC Topic 718. Outstanding SARs issued by the Company may be settled only in cash, and therefore have been treated as liability awards with their fair value estimated at the grant date and remeasured at the end of each reporting period using the Black-Scholes option valuation model as required by ASC Topic 718.  Please see Note 10 for additional disclosures regarding the Company's SIP.

Contingencies [Policy Text Block]

Contingencies

In the normal course of business, there are various lawsuits, claims, and other contingencies pending against the Company.  We evaluate whether to establish provisions for estimated losses from those matters in accordance with ASC Topic 450, which states that a liability is recognized for a contingent loss when: (a) the underlying causal event has occurred prior to the balance sheet date; (b) it is probable that a loss has been incurred; and (c) there is a reasonable basis for estimating that loss. A liability is not recognized for a contingent loss when it is only possible or remotely possible that a loss has been incurred, however, possible contingent losses shall be disclosed. Please refer to Note 12 for details on the most significant matters currently pending.

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Fair Value of Financial Instruments (Notes)

3 Months Ended

Mar. 31, 2013

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments

FAIR VALUE OF FINANCIAL INSTRUMENTS

ASC Topic 820 defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. ASC 820 clarifies that fair value should be based on the assumptions market participants would use when pricing as asset or liability and also requires an entity to consider all aspects of nonperformance risk, including the entity's own credit standing, when measuring fair value of a liability. ASC Topic 820 established a valuation hierarchy of three levels as follows:

• Level 1 – Inputs are unadjusted, quoted prices in active markets for identical assets or liabilities as of the measurement date. None of the Company's assets and liabilities that are measured at fair value are included in this category.

• Level 2 – Inputs include quoted prices in active markets for similar assets or liabilities; quoted prices in inactive markets for identical or similar assets or liabilities; or inputs either directly observable or indirectly observable through correlation with market data at the measurement date and for the duration of the instrument’s anticipated life.  The Company’s fair valued assets and liabilities that are generally included in this category are Agency MBS, certain non-Agency MBS, and derivatives.

• Level 3 – Unobservable inputs are supported by little or no market activity. The unobservable inputs represent management’s best estimate of how market participants would price the asset or liability at the measurement date.  Consideration is given to the risk inherent in the valuation technique and the risk inherent in the inputs to the model.  The Company’s fair valued assets and liabilities that are generally included in this category are certain non-Agency MBS and other investments.

The following table presents the fair value of the Company’s assets and liabilities measured at fair value on a recurring basis as of March 31, 2013 and December 31, 2012, segregated by the hierarchy level of the fair value estimate:

	March 31, 2013
	Fair Value		Level 1		Level 2		Level 3
Assets:
Agency MBS (including pending settlements)	$	3,848,434	$	—	$	3,848,434	$	—
Non-Agency MBS	617,261		—		496,292		120,969
Other investments	25		—		—		25
Total assets carried at fair value	$	4,465,720	$	—	$	4,344,726	$	120,994
Liabilities:
Derivative liabilities	$	37,687	$	—	$	37,687	$	—
Total liabilities carried at fair value	$	37,687	$	—	$	37,687	$	—

	December 31, 2012
	Fair Value		Level 1		Level 2		Level 3
Assets:
Agency MBS	$	3,492,659	$	—	$	3,492,659	$	—
Non-Agency MBS	611,322		—		506,102		105,220
Other investments	25		—		—		25
Total assets carried at fair value	$	4,104,006	$	—	$	3,998,761	$	105,245
Liabilities:
Derivative liabilities	$	42,537	$	—	$	42,537	$	—
Total liabilities carried at fair value	$	42,537	$	—	$	42,537	$	—

The Company’s Agency MBS, as well a majority of its non-Agency MBS, are substantially similar to securities that either are currently actively traded or have been recently traded in their respective market.  Their fair values are derived from an average of multiple dealer quotes and thus are considered Level 2 fair value measurements.

The Company’s remaining non-Agency MBS are comprised of securities for which there are not substantially similar securities that trade frequently.  As such, the Company determines the fair value of those securities by discounting the estimated future cash flows derived from cash flow models using assumptions that are confirmed to the extent possible by third party dealers or other pricing indicators.  Significant inputs into those pricing models are Level 3 in nature due to the lack of readily available market quotes.  Information utilized in those pricing models include the security’s credit rating, coupon rate, estimated prepayment speeds, expected weighted average life, collateral composition, estimated future interest rates, expected credit losses, and credit enhancement as well as certain other relevant information.  Significant changes in any of these inputs in isolation would result in a significantly different fair value measurement. Generally Level 3 assets are most sensitive to the default rate and severity assumptions.

The table below presents information about the significant unobservable inputs used in the fair value measurement for the Company's Level 3 non-Agency CMBS and RMBS as of March 31, 2013:

	Quantitative Information about Level 3 Fair Value Measurements(1)
	Prepayment Speed		Default Rate		Severity		Discount Rate
Non-Agency CMBS	20 CPY		2.5	%	35.0	%	5.1	%
Non-Agency RMBS	9	CPR	0.9	%	18.5	%	6.7	%

(1) Data presented are weighted averages.

The following table presents the activity of the instruments fair valued at Level 3 during the three months ended March 31, 2013:

	Level 3 Fair Values
	Non-Agency CMBS			Non-Agency RMBS			Other		Total assets
Balance as of beginning of the period	$	100,102		$	5,118		$	25	$	105,245
Purchases	19,516			—			—		19,516
Unrealized (loss) gain included in OCI	(444		)	(34		)	—		(478		)
Principal payments	(2,059		)	(1,345		)	—		(3,404		)
Amortization	104			11			—		115
Balance as of end of period	$	117,219		$	3,750		$	25	$	120,994

The following table presents a summary of the recorded basis and estimated fair values of the Company’s financial instruments as of March 31, 2013 and December 31, 2012:

	March 31, 2013				December 31, 2012
	Recorded Basis		Fair Value		Recorded Basis		Fair Value
Assets:
Agency MBS (including pending settlements)	$	3,848,434	$	3,848,434	$	3,492,659	$	3,492,659
Non-Agency MBS	617,261		617,261		611,322		611,322
Securitized mortgage loans, net	64,825		54,757		70,823		61,916
Other investments	822		775		858		810
Liabilities:
Repurchase agreements	$	3,708,255	$	3,708,811	$	3,564,128	$	3,564,787
Non-recourse collateralized financing	28,473		28,810		30,504		30,756
Derivative liabilities	37,687		37,687		42,537		42,537

There were no assets or liabilities which were measured at fair value on a non-recurring basis as of March 31, 2013 or December 31, 2012.

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Repurchase Agreements

3 Months Ended

Mar. 31, 2013

REPURCHASE AGREEMENTS [Abstract]

Repurchase Agreements

REPURCHASE AGREEMENTS

The following tables present the components of the Company’s repurchase agreements as of March 31, 2013 and December 31, 2012 by the fair value and type of securities pledged as collateral to the repurchase agreements:

	March 31, 2013
Collateral Type	Balance			Weighted Average Rate		Fair Value of Collateral Pledged
Agency RMBS	$	2,476,620		0.43	%	$	2,589,965
Agency CMBS	245,723			0.41	%	286,951
Agency CMBS IOs	477,290			1.20	%	599,086
Non-Agency RMBS	7,283			1.85	%	8,289
Non-Agency CMBS	392,609			1.32	%	475,709
Non-Agency CMBS IO	85,720			1.47	%	111,406
Securitization financing bonds	23,566			1.61	%	26,945
Deferred costs	(556		)	n/a		n/a
	$	3,708,255		0.65	%	$	4,098,351

	December 31, 2012
Collateral Type	Balance			Weighted Average Rate		Fair Value of Collateral Pledged
Agency RMBS	$	2,365,982		0.48	%	$	2,458,200
Agency CMBS	248,771			0.47	%	291,445
Agency CMBS IOs	443,540			1.22	%	565,494
Non-Agency RMBS	7,808			1.84	%	9,634
Non-Agency CMBS	382,352			1.34	%	465,306
Non-Agency CMBS IOs	88,221			1.46	%	113,942
Securitization financing bonds	28,113			1.64	%	31,483
Deferred costs	(659		)	n/a		n/a
	$	3,564,128		0.61	%	$	3,935,504

The combined weighted average original term to maturity for the Company’s repurchase agreements was 58 days as of March 31, 2013 and 57 days as of December 31, 2012.  The following table provides a summary of the original maturities as of March 31, 2013 and December 31, 2012:

Original Maturity	March 31, 2013		December 31, 2012
30 days or less	$	1,030,894	$	622,957
31 to 60 days	1,333,963		1,263,105
61 to 90 days	969,050		298,660
Greater than 90 days	374,904		1,380,065
	$	3,708,811	$	3,564,787

As of March 31, 2013, the Company had approximately 17% of its shareholders' equity at risk with Wells Fargo Bank National Association together with its affiliate Wells Fargo Securities, LLC. The borrowings outstanding with that counterparty and its affiliates as of March 31, 2013 were $365,061 with a weighted average borrowing rate of 1.34%. Of the amount outstanding with this counterparty and its affiliate, $200,000 is under a two-year repurchase facility with Wells Fargo Bank National Association, which is the facility's aggregate maximum borrowing capacity and which is set to mature on August 6, 2014, subject to certain early termination provisions contained in the master repurchase agreement. The facility is collateralized primarily by Agency CMBS IO, and its weighted average borrowing rate as of March 31, 2013 was 1.47%. Shareholders' equity at risk did not exceed 10% for any of the Company's other counterparties.

As of March 31, 2013, the Company had repurchase agreement amounts outstanding with 20 of its 29 available counterparties. The Company's counterparties, as set forth in the master repurchase agreement with the counterparty, require the Company to comply with various customary operating and financial covenants, including, but not limited to, minimum net worth, maximum declines in net worth in a given period, and maximum leverage requirements as well as maintaining the Company's REIT status.  In addition, some of the agreements contain cross default features, whereby default under an agreement with one lender simultaneously causes default under agreements with other lenders.  To the extent that the Company fails to comply with the covenants contained in these financing agreements or is otherwise found to be in default under the terms of such agreements, the counterparty has the right to accelerate amounts due under the master repurchase agreement. The Company was in compliance with all covenants as of March 31, 2013.

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Non Recourse Collateralized Financings

3 Months Ended

Mar. 31, 2013

Debt Disclosure [Abstract]

Non Recourse Collateralized Financings [Text Block]

NON-RECOURSE COLLATERIZED FINANCING

As of March 31, 2013, the Company's non-recourse collateralized financing consists of collateral-based financing issued by special purpose securitization trusts. The following table summarizes information about the Company’s non-recourse collateralized financing for the periods indicated:

	March 31, 2013
	Interest Rate	Weighted Average Life Remaining (in years) (1)	Balance Outstanding			Value of Collateral
Secured by non-Agency CMBS	6.2% fixed	1.9	$	14,396		$	15,485
Secured by single-family mortgage loans	1-month LIBOR plus 0.30%	2.8	14,554			15,249
Unamortized net bond premium and deferred costs			(477		)	n/a
			$	28,473		$	30,734

	December 31, 2012
	Interest Rate	Weighted Average Life Remaining (in years) (1)	Balance Outstanding			Value of Collateral
Secured by non-Agency CMBS	6.2% fixed	1.4	$	15,000		$	15,825
Secured by single-family mortgage loans	1-month LIBOR plus 0.30%	3.1	15,974			17,309
Unamortized net bond premium and deferred costs			(470		)	n/a
			$	30,504		$	33,134

(1)    Weighted average life remaining is based on the current projected future cash flows as of the date indicated.

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Shareholders' Equity

3 Months Ended

Mar. 31, 2013

Equity [Abstract]

Shareholders' Equity

SHAREHOLDERS' EQUITY

Preferred Stock

The Company declared dividends of $0.53125 for the period January 16, 2013 through April 15, 2013 on its 8.50% Series A Cumulative Redeemable Preferred Stock.

Common Stock

The following table presents a summary of the changes in the number of common shares outstanding for the periods indicated:

	Three Months Ended
	March 31,
	2013		2012
Balance as of beginning of period	54,268,915		40,382,530
Common stock issued under DRIP	298,304		3,932
Common stock issued under ATM program	180,986		402,494
Common stock issued via secondary offering	—		13,332,748
Common stock issued or redeemed under stock and incentive plans	139,600		216,663
Common stock forfeited for tax withholding on share-based compensation	(52,385	)	—
Balance as of end of period	54,835,420		54,338,367

The Company has approximately 7,416,520 shares of common stock that remain available to offer and sell through its sales agent, JMP Securities LLC, under its "at the market", or "ATM" program, as of March 31, 2013. The Company received proceeds of $1,956, net of $30 in broker sales commissions, for the common shares issued under this program during the three months ended March 31, 2013.  

The Company's Dividend Reinvestment and Share Purchase Plan ("DRIP") allows registered shareholders to automatically reinvest some or all of their quarterly dividends in shares of the Company’s stock and provides an opportunity for investors to purchase shares of the Company’s stock, potentially at a discount to the prevailing market price. A total of 3,000,000 shares have been reserved for issuance under the DRIP, and there are 2,688,216 shares remaining for issuance as of March 31, 2013. The Company declared a first quarter common stock dividend of $0.29 per share payable on April 30, 2013 to shareholders of record as of April 1, 2013. There was no discount for shares purchased through the DRIP during the first quarter of 2013.

Incentive Plans.     Pursuant to the Company’s 2009 Stock and Incentive Plan, the Company may grant stock-based compensation to eligible employees, directors or consultants or advisers to the Company, including stock awards, stock options, SARs, dividend equivalent rights, performance shares, incentive awards, and restricted stock units.  Of the 2,500,000 shares of common stock authorized for issuance under this plan, 1,665,676 shares remain available for issuance as of March 31, 2013. Total stock-based compensation expense recognized by the Company for the three months ended March 31, 2013 was $489 compared to $453 for the three months ended March 31, 2012.

The following table presents a rollforward of the restricted stock activity for the periods indicated:

	Three Months Ended
	March 31,
	2013		2012
Restricted stock outstanding as of beginning of period	448,283		365,506
Restricted stock granted	139,600		200,821
Restricted stock vested	(153,720	)	(109,293	)
Restricted stock outstanding as of end of period	434,163		457,034

 The restricted stock granted during the three months ended March 31, 2013 and March 31, 2012 had fair values of $1,491 and $1,891, respectively at their grant dates. As of March 31, 2013, the fair value of the Company’s outstanding restricted stock remaining to be amortized into compensation expense is $4,018, of which $1,634 is expected to be amortized in the remaining nine months of 2013, $1,313 in 2014, $890 in 2015, and $181 in 2016.

As of March 31, 2013, the Company also has SARs and stock options outstanding, all of which were granted pursuant to the Company's 2004 Stock Incentive Plan. No new awards may be granted under this plan. As of March 31, 2013, all of the Company's outstanding SARs are vested and exercisable at any time prior to their expiration date of December 31, 2013. As of March 31, 2013 and December 31, 2012, the fair value of the Company’s outstanding SARs of $90 and $66, respectively, are recorded as liabilities on its consolidated balance sheet for the respective periods. The following table presents a rollforward of the SARs activity for the periods indicated:

	Three Months Ended
	March 31,
	2013				2012
	Quantity		Weighted-Average Price		Quantity	Weighted-Average Price
SARs outstanding as of beginning of period	27,500		$	7.06	59,375	$	6.87
SARs exercised	(2,500	)	7.06		—	—
SARs outstanding as of end of period	25,000		$	7.06	59,375	$	6.87

The Company has 15,000 unexercised stock options outstanding as of March 31, 2013 that will expire if not exercised by May 16, 2013. These options are exercisable at an exercise price of $9.81. The compensation cost related to all stock options has been expensed in prior periods.

Additional Paid-In Capital

The following table presents a rollforward of the Company's changes in additional paid-in capital for the periods indicated:

	Three Months Ended
	March 31,
	2013			2012
Balance as of beginning of period	$	759,214		$	634,683
Common stock issuances:
DRIP issuances	3,224			37
ATM issuances	1,954			3,674
Secondary offering	—			119,859
Adjustments related to tax withholding for share-based compensation	(545		)	—
Amortization of restricted stock, net of additional grants	455			369
Capitalized expenses	(30		)	(119		)
Balance as of end of period	$	764,272		$	758,503

Accumulated Other Comprehensive Income

Accumulated other comprehensive income as of March 31, 2013 and December 31, 2012 is comprised of the following items:

	March 31, 2013			December 31, 2012
Available for sale investments:
Unrealized gains	$	112,641		$	104,870
Unrealized losses	(15,888		)	(12,623		)
	96,753			92,247
Hedging instruments:
Unrealized losses	(35,196		)	(39,736		)
Accumulated other comprehensive income	$	61,557		$	52,511

Due to the Company’s REIT status, the items comprising other comprehensive income do not have related tax effects.

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Allowance for Loan Losses (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance at beginning of period			$ (439)
Allowance at end of period	(260)		(439)
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance at beginning of period	(150)	(2,268)
Provision for loan losses	0	60
Credit losses, net of recoveries	5	987
Allowance at end of period	(145)	(1,341)
Unpaid principal balance of impaired securitized loans	0		1,814
Basis adjustments related to impaired securitized loans	0		0
Amortized cost basis of impaired securitized loans	0		1,814
Interest income recognized on impaired securitized loans	0	25
Single-family [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance at beginning of period	(289)	(231)
Provision for loan losses	261	0
Credit losses, net of recoveries	435	0
Allowance at end of period	(115)	(231)
Unpaid principal balance of impaired securitized loans	4,171		3,029
Basis adjustments related to impaired securitized loans	62		59
Amortized cost basis of impaired securitized loans	4,233		3,088
Interest income recognized on impaired securitized loans	$ 61	$ 40

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Mortgage backed securities Mortgage backed securities (Tables)

3 Months Ended

Mar. 31, 2013

Schedule of Available-for-sale Securities [Line Items]

Available-for-sale Securities [Table Text Block]

The following table presents the components of the Company’s MBS designated as AFS as of March 31, 2013 and December 31, 2012 and includes MBS pending settlement:

	March 31, 2013
	Par		Net Premium (Discount)			Amortized Cost		Net Unrealized Gain (Loss)		Fair Value		Weighted average coupon
Agency:
RMBS (including pending settlements)	$	2,732,173	$	158,205		$	2,890,378	$	4,643	$	2,895,021	3.56	%
CMBS	280,842		21,562			302,404		19,812		322,216		5.18	%
CMBS IO (1)	—		576,161			576,161		25,228		601,389		1.02	%
Total Agency AFS:	3,013,015		755,928			3,768,943		49,683		3,818,626
Non-Agency:
RMBS	10,053		(758		)	9,295		285		9,580		4.20	%
CMBS	472,650		(16,685		)	455,965		40,310		496,275		5.40	%
CMBS IO (1)	—		104,930			104,930		6,476		111,406		0.93	%
Total non-Agency AFS:	482,703		87,487			570,190		47,071		617,261
Total AFS securities (including pending settlements)	$	3,495,718	$	843,415		$	4,339,133	$	96,754	$	4,435,887

(1) The combined notional balance for Agency CMBS IO and non-Agency CMBS IO is $10,873,160 and $2,385,979, respectively, as of March 31, 2013.

	December 31, 2012
	Par		Net Premium (Discount)			Amortized Cost		Net Unrealized Gain (Loss)		Fair Value		Weighted average coupon
Agency:
RMBS	$	2,425,826	$	137,168		$	2,562,994	$	8,343	$	2,571,337	3.67	%
CMBS	280,602		21,907			302,509		21,564		324,073		5.19	%
CMBS IO (1)	—		550,171			550,171		17,009		567,180		0.95	%
Total Agency AFS:	2,706,428		709,246			3,415,674		46,916		3,462,590
Non-Agency:
RMBS	11,411		(781		)	10,630		408		11,038		4.28	%
CMBS	463,747		(17,313		)	446,434		39,908		486,342		5.31	%
CMBS IO (1)	—		108,928			108,928		5,014		113,942		0.86	%
Total non-Agency AFS:	475,158		90,834			565,992		45,330		611,322
Total AFS securities	$	3,181,586	$	800,080		$	3,981,666	$	92,246	$	4,073,912

(1) The combined notional balance for the Agency CMBS IO and non-Agency CMBS IO is $10,059,495 and $2,393,614, respectively, as of December 31, 2012.

Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Table Text Block]

The following table presents certain information for those Agency MBS in an unrealized loss position as of March 31, 2013 and December 31, 2012:

	March 31, 2013						December 31, 2012
	Fair Value		Gross Unrealized Losses			# of Securities	Fair Value		Gross Unrealized Losses			# of Securities
Continuous unrealized loss position for less than 12 months:
Agency MBS	$	1,034,706	$	(8,997	)	87	$	1,026,277	$	(6,552	)	83
Non-Agency MBS	4,480		(314		)	2	13,877		(76		)	3
Continuous unrealized loss position for 12 months or longer:
Agency MBS	$	251,664	$	(6,415	)	35	$	271,719	$	(5,797	)	34
Non-Agency MBS	2,188		(161		)	6	2,701		(198		)	8

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Non Recourse Collateralized Financings (Tables)

3 Months Ended

Mar. 31, 2013

Debt Disclosure [Abstract]

Schedule of Non Recourse Collateralized Financings [Table Text Block]

The following table summarizes information about the Company’s non-recourse collateralized financing for the periods indicated:

	March 31, 2013
	Interest Rate	Weighted Average Life Remaining (in years) (1)	Balance Outstanding			Value of Collateral
Secured by non-Agency CMBS	6.2% fixed	1.9	$	14,396		$	15,485
Secured by single-family mortgage loans	1-month LIBOR plus 0.30%	2.8	14,554			15,249
Unamortized net bond premium and deferred costs			(477		)	n/a
			$	28,473		$	30,734

	December 31, 2012
	Interest Rate	Weighted Average Life Remaining (in years) (1)	Balance Outstanding			Value of Collateral
Secured by non-Agency CMBS	6.2% fixed	1.4	$	15,000		$	15,825
Secured by single-family mortgage loans	1-month LIBOR plus 0.30%	3.1	15,974			17,309
Unamortized net bond premium and deferred costs			(470		)	n/a
			$	30,504		$	33,134

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Subsequent Events Series B Preferred Stock Offering (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Jun. 30, 2013	Mar. 31, 2013	Apr. 19, 2013	Dec. 31, 2012
Subsequent Event [Line Items]
Preferred Stock, Shares Issued		2,300,000		2,300,000
Preferred Stock, Dividend Rate, Percentage	7.625%	8.50%
Preferred Stock, Par Value Per Share		$ 0.01	$ 0.01	$ 0.01
Preferred Stock, Liquidation Preference Per Share			$ 25.00
Preferred Stock, Including Additional Paid in Capital, Net of Discount			$ 54,478
Series B Preferred Stock [Member]
Subsequent Event [Line Items]
Preferred Stock, Shares Issued			2,250,000
Preferred Shares Issued, Underwriters' Option [Member]
Subsequent Event [Line Items]
Preferred Stock, Shares Issued			250,000

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Non Recourse Collateralized Financings (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Mar. 31, 2013
Debt Instrument [Line Items]
Non-Recourse Debt	$ 30,504		$ 28,473
Secured Debt [Member]
Debt Instrument [Line Items]
Non-Recourse Debt	30,504		28,473
Unamortized net bond premium and deferred costs	(470)		(477)
Value of Collateral	33,134		30,734
Secured Debt [Member] | Non-Agency CMBS [Member]
Debt Instrument [Line Items]
Non-Recourse Debt	15,000		14,396
Value of Collateral	15,825		15,485
Weighted average life remaining, non-recourse debt	1 year 10 months 17 days	1 year 4 months 16 days
Fixed Interest Rate	6.20%		6.20%
Secured Debt [Member] | Residential Mortgage [Member]
Debt Instrument [Line Items]
Non-Recourse Debt	15,974		14,554
Value of Collateral	$ 17,309		$ 15,249
Weighted average life remaining, non-recourse debt	2 years 10 months 1 day	3 years 1 month 16 days
Basis Spread on Variable Rate Interest	0.30%		0.30%

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Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Net Income	$ 19,603	$ 16,476
Other comprehensive income:
Change in fair value of available-for-sale securities	5,897	26,000
Reclassification adjustment for gain on sale of investments, net included in statement of income	(1,391)	0
Change in fair value of cash flow hedges	437	(3,087)
Reclassification adjustment for cash flows hedges included in statement of income	4,103	3,266
Other comprehensive income	9,046	26,179
Total comprehensive income	28,649	42,655
Preferred Stock Dividends	(1,222)	0
Comprehensive Income to Common Shareholders	$ 27,427	$ 42,655

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Securitized Mortage Loans, Net

3 Months Ended

Mar. 31, 2013

Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items]

Transfers and Servicing of Financial Assets [Text Block]

SECURITIZED MORTGAGE LOANS, NET

The Company's securitized mortgage loans are pledged as collateral for its associated securitization financing bonds, which are discussed further in Note 8. Please also refer to Note 5 for disclosures related to impaired securitized mortgage loans and the related allowance for loan losses. The following table summarizes the components of securitized mortgage loans as of March 31, 2013 and December 31, 2012:

	March 31, 2013									December 31, 2012
	Commercial			Single-family			Total			Commercial			Single-family			Total
Principal/par value (1)	$	27,010		$	38,730		$	65,740		$	30,576		$	41,337		$	71,913
Unamortized (discount) premium,    net	(1,229		)	574			(655		)	(1,267		)	616			(651		)
Amortized cost	25,781			39,304			65,085			29,309			41,953			71,262
Allowance for loan losses	(145		)	(115		)	(260		)	(150		)	(289		)	(439		)
	$	25,636		$	39,189		$	64,825		$	29,159		$	41,664		$	70,823

 (1) Includes funds held by trustees.

The balance of the Company's securitized commercial mortgage loans has decreased since December 31, 2012 primarily due to principal payments, including amounts received on defeased loans, of $3,565.  The Company's securitized commercial mortgage loans were originated principally in 1996 and 1997 and are collateralized by first deeds of trust on income producing properties.  Approximately half of these securitized commercial mortgage loans are secured by multifamily properties with the remainder being secured by industrial or mixed use properties. As of March 31, 2013 and December 31, 2012, the weighted average loan-to-value ratio based on original appraisal was 50% and 48%, respectively. There were no securitized commercial mortgage loans identified as seriously delinquent (60 or more days past due) and therefore on nonaccrual status on the Company's balance sheet as of March 31, 2013 or as of December 31, 2012.

The balance of the Company's securitized single-family mortgage loans have decreased since December 31, 2012 due to principal payments on the loans of $2,172. These single-family mortgage loans are secured by first deeds of trust on residential real estate and were originated principally from 1992 to 1997.  As of March 31, 2013 and December 31, 2012, the current loan-to-value ratio based on original appraisal was approximately 42% and 43%, respectively. The unpaid principal balance of the Company's securitized single-family mortgage loans identified as seriously delinquent as of March 31, 2013 is $4,171 compared to $3,380 as of December 31, 2012. The Company continues accruing interest on any seriously delinquent securitized single-family mortgage loan so long as the primary servicer continues to advance the interest and/or principal due on the loan.

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Fair Value of Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2013

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

The following table presents the fair value of the Company’s assets and liabilities measured at fair value on a recurring basis as of March 31, 2013 and December 31, 2012, segregated by the hierarchy level of the fair value estimate:

	March 31, 2013
	Fair Value		Level 1		Level 2		Level 3
Assets:
Agency MBS (including pending settlements)	$	3,848,434	$	—	$	3,848,434	$	—
Non-Agency MBS	617,261		—		496,292		120,969
Other investments	25		—		—		25
Total assets carried at fair value	$	4,465,720	$	—	$	4,344,726	$	120,994
Liabilities:
Derivative liabilities	$	37,687	$	—	$	37,687	$	—
Total liabilities carried at fair value	$	37,687	$	—	$	37,687	$	—

	December 31, 2012
	Fair Value		Level 1		Level 2		Level 3
Assets:
Agency MBS	$	3,492,659	$	—	$	3,492,659	$	—
Non-Agency MBS	611,322		—		506,102		105,220
Other investments	25		—		—		25
Total assets carried at fair value	$	4,104,006	$	—	$	3,998,761	$	105,245
Liabilities:
Derivative liabilities	$	42,537	$	—	$	42,537	$	—
Total liabilities carried at fair value	$	42,537	$	—	$	42,537	$	—

Fair Value Inputs, Assets, Quantitative Information [Table Text Block]

The table below presents information about the significant unobservable inputs used in the fair value measurement for the Company's Level 3 non-Agency CMBS and RMBS as of March 31, 2013:

	Quantitative Information about Level 3 Fair Value Measurements(1)
	Prepayment Speed		Default Rate		Severity		Discount Rate
Non-Agency CMBS	20 CPY		2.5	%	35.0	%	5.1	%
Non-Agency RMBS	9	CPR	0.9	%	18.5	%	6.7	%

(1) Data presented are weighted averages.

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

The following table presents the activity of the instruments fair valued at Level 3 during the three months ended March 31, 2013:

	Level 3 Fair Values
	Non-Agency CMBS			Non-Agency RMBS			Other		Total assets
Balance as of beginning of the period	$	100,102		$	5,118		$	25	$	105,245
Purchases	19,516			—			—		19,516
Unrealized (loss) gain included in OCI	(444		)	(34		)	—		(478		)
Principal payments	(2,059		)	(1,345		)	—		(3,404		)
Amortization	104			11			—		115
Balance as of end of period	$	117,219		$	3,750		$	25	$	120,994

Recorded basis and fair value [Table Text Block]

The following table presents a summary of the recorded basis and estimated fair values of the Company’s financial instruments as of March 31, 2013 and December 31, 2012:

	March 31, 2013				December 31, 2012
	Recorded Basis		Fair Value		Recorded Basis		Fair Value
Assets:
Agency MBS (including pending settlements)	$	3,848,434	$	3,848,434	$	3,492,659	$	3,492,659
Non-Agency MBS	617,261		617,261		611,322		611,322
Securitized mortgage loans, net	64,825		54,757		70,823		61,916
Other investments	822		775		858		810
Liabilities:
Repurchase agreements	$	3,708,255	$	3,708,811	$	3,564,128	$	3,564,787
Non-recourse collateralized financing	28,473		28,810		30,504		30,756
Derivative liabilities	37,687		37,687		42,537		42,537

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Repurchase Agreements (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Mar. 31, 2013
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Repurchase agreement, balance	$ 3,564,128		$ 3,708,255
Repurchage agreement, Weighted Average Interest Rate	0.61%		0.65%
Fair Value of Collateral Pledged	3,935,504		4,098,351
Deferred Costs	(659)		(556)
Weighted Average Maturity of Agreements	58 days	57 days
Line of Credit Facility, Amount Outstanding			200,000
Line of Credit Facility, Interest Rate at Period End			1.47%
Bonds [Member]
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Repurchase agreement, balance	28,113		23,566
Repurchage agreement, Weighted Average Interest Rate	1.64%		1.61%
Fair Value of Collateral Pledged	31,483		26,945
Residential Mortgage Backed Securities [Member] | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Repurchase agreement, balance	2,365,982		2,476,620
Repurchage agreement, Weighted Average Interest Rate	0.48%		0.43%
Fair Value of Collateral Pledged	2,458,200		2,589,965
Residential Mortgage Backed Securities [Member] | Mortgage-backed Securities, Issued by Private Enterprises [Member]
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Repurchase agreement, balance	7,808		7,283
Repurchage agreement, Weighted Average Interest Rate	1.84%		1.85%
Fair Value of Collateral Pledged	9,634		8,289
Commercial Mortgage Backed Securities [Member] | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Repurchase agreement, balance	248,771		245,723
Repurchage agreement, Weighted Average Interest Rate	0.47%		0.41%
Fair Value of Collateral Pledged	291,445		286,951
Commercial Mortgage Backed Securities [Member] | Mortgage-backed Securities, Issued by Private Enterprises [Member]
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Repurchase agreement, balance	382,352		392,609
Repurchage agreement, Weighted Average Interest Rate	1.34%		1.32%
Fair Value of Collateral Pledged	465,306		475,709
Commercial Mortgage Backed Securities, Interest Only [Member] | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Repurchase agreement, balance	443,540		477,290
Repurchage agreement, Weighted Average Interest Rate	1.22%		1.20%
Fair Value of Collateral Pledged	565,494		599,086
Commercial Mortgage Backed Securities, Interest Only [Member] | Mortgage-backed Securities, Issued by Private Enterprises [Member]
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Repurchase agreement, balance	88,221		85,720
Repurchage agreement, Weighted Average Interest Rate	1.46%		1.47%
Fair Value of Collateral Pledged	$ 113,942		$ 111,406

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Net Income Per Common Share (Tables)

3 Months Ended

Mar. 31, 2013

Earnings Per Share, Basic and Diluted [Abstract]

Schedule of Calculation of Numerator and Denominator in Net Income Per Common Share [Table Text Block]

The following table presents the calculation of the numerator and denominator for both basic and diluted net income per common share:

	Three Months Ended
	March 31,
	2013					2012
	Income			Weighted-Average Common Shares		Income		Weighted- Average Common Shares
Net income	$	19,603				$	16,476
Preferred stock dividends	(1,222		)			—
Net income to common shareholders	$	18,381		54,300,020		$	16,476	49,480,426
Effect of dilutive stock options	—			754		—		469
Diluted	$	18,381		54,300,774		$	16,476	49,480,895
Net income per common share:
Basic				$	0.34			$	0.33
Diluted (1)				$	0.34			$	0.33

(1) For the three months ended March 31, 2012, the calculation of diluted net income per common shareexcludes the effect of 15,000 unexercised stock option awards because their inclusion would have been anti-dilutive.