10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

[X]              QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES

EXCHANGE ACT OF 1934

FOR THE QUARTERLY PERIOD ENDED: June 30, 2018

OR

[  ]              TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES

EXCHANGE ACT OF 1934

FOR THE TRANSITION PERIOD FROM _______________ TO _________________

COMMISSION FILE NUMBER: 1-33796

CHIMERA INVESTMENT CORPORATION

(Exact name of Registrant as specified in its Charter) 

MARYLAND	26-0630461
(State or other jurisdiction of incorporation or organization)	(IRS Employer Identification No.)

520 Madison Avenue 32nd Floor

NEW YORK, NEW YORK

(Address of principal executive offices)

10022

(Zip Code)

(212) 626-2300

(Registrant’s telephone number, including area code)

Indicate by check mark whether the Registrant (1) has filed all documents and 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 þ 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 (Section 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 þ No ☐

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

Large accelerated filer þ Accelerated filer ☐ Non-accelerated filer ☐ Smaller reporting company ☐

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act

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

Yes ☐ No þ

APPLICABLE ONLY TO CORPORATE ISSUERS:

Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the last practicable date:

Class	Outstanding at July 31, 2018
Common Stock, $0.01 par value	187,006,450

CHIMERA INVESTMENT CORPORATION

FORM 10-Q

TABLE OF CONTENTS

Part I. FINANCIAL INFORMATION
Item 1. Consolidated Financial Statements:
Consolidated Statements of Financial Condition as of June 30, 2018 (Unaudited) and December 31, 2017 (Derived from the audited consolidated financial statements as of December 31, 2017)	2
Consolidated Statements of Operations (Unaudited) for the quarters and six months ended June 30, 2018 and 2017	3
Consolidated Statements of Comprehensive Income (Unaudited) for the quarters and six months ended June 30, 2018 and 2017	4
Consolidated Statements of Changes in Stockholders’ Equity (Unaudited) for the six months ended June 30, 2018 and 2017	5
Consolidated Statements of Cash Flows (Unaudited) for the six months ended June 30, 2018 and 2017	6
Notes to Consolidated Financial Statements (Unaudited)	8
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations	42
Item 3. Quantitative and Qualitative Disclosures about Market Risk	63
Item 4. Controls and Procedures	68
Part II.  OTHER INFORMATION
Item 1. Legal Proceedings	68
Item 1A. Risk Factors	69
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds	69
Item 6. Exhibits	70
SIGNATURES	71

1

Part I

Item 1. Consolidated Financial Statements

CHIMERA INVESTMENT CORPORATION
CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION
(dollars in thousands, except share and per share data)
(Unaudited)
	June 30, 2018			December 31, 2017
Assets:
Cash and cash equivalents	$	90,671		$	63,569
Non-Agency RMBS, at fair value	2,593,422			2,851,316
Agency MBS, at fair value	6,989,329			4,364,828
Loans held for investment, at fair value	13,246,521			13,678,263
Accrued interest receivable	106,877			100,789
Other assets	106,594			114,391
Derivatives, at fair value, net	129,341			48,914
Total assets (1)	$	23,262,755		$	21,222,070
Liabilities:
Repurchase agreements ($10.6 billion and $8.8 billion, pledged as collateral, respectively)	$	9,127,048		$	7,250,452
Securitized debt, collateralized by Non-Agency RMBS ($1.3 billion and $1.6 billion pledged as collateral, respectively)	179,742			205,780
Securitized debt at fair value, collateralized by loans held for investment ($13.0 billion and $13.3 billion pledged as collateral, respectively)	9,340,368			9,388,657
Payable for investments purchased	784,425			567,440
Accrued interest payable	71,405			61,888
Dividends payable	95,807			95,365
Accounts payable and other liabilities	13,818			17,191
Derivatives, at fair value, net	—			320
Total liabilities (1)	$	19,612,613		$	17,587,093
Commitments and Contingencies (See Note 15)
Stockholders' Equity:
Preferred Stock, par value of $0.01 per share, 100,000,000 shares authorized:
8.00% Series A cumulative redeemable: 5,800,000 shares issued and outstanding, respectively ($145,000 liquidation preference)	$	58		$	58
8.00% Series B cumulative redeemable: 13,000,000 shares issued and outstanding, respectively ($325,000 liquidation preference)	130			130
Common stock: par value $0.01 per share; 300,000,000 shares authorized, 187,006,450 and 187,809,288 shares issued and outstanding, respectively	1,870			1,878
Additional paid-in-capital	3,816,631			3,826,691
Accumulated other comprehensive income	671,651			796,902
Cumulative earnings	3,324,968			2,967,852
Cumulative distributions to stockholders	(4,165,166		)	(3,958,534		)
Total stockholders' equity	$	3,650,142		$	3,634,977
Total liabilities and stockholders' equity	$	23,262,755		$	21,222,070

(1) The Company's consolidated statements of financial condition include assets of consolidated variable interest entities (“VIEs”) that can only be used to settle obligations and liabilities of the VIE for which creditors do not have recourse to the primary beneficiary (Chimera Investment Corporation). As of June 30, 2018 and December 31, 2017, total assets of consolidated VIEs were $14,455,778 and $14,987,464, respectively, and total liabilities of consolidated VIEs were $9,559,149 and $9,631,820, respectively. See Note 8 for further discussion.

See accompanying notes to consolidated financial statements.

2

CHIMERA INVESTMENT CORPORATION
CONSOLIDATED STATEMENTS OF OPERATIONS
(dollars in thousands, except share and per share data)
(Unaudited)
	For the Quarters Ended						For the Six Months Ended
	June 30, 2018			June 30, 2017			June 30, 2018			June 30, 2017
Net interest income:
Interest income (1)	$	306,436		$	288,644		$	603,567		$	539,988
Interest expense (2)	161,266			137,955			310,518			248,186
Net interest income	145,170			150,689			293,049			291,802
Other-than-temporary impairments:
Total other-than-temporary impairment losses	(805		)	(749		)	(1,099		)	(3,462		)
Portion of loss recognized in other comprehensive income	(8,326		)	(12,760		)	(9,190		)	(28,748		)
Net other-than-temporary credit impairment losses	(9,131		)	(13,509		)	(10,289		)	(32,210		)
Other investment gains (losses):
Net unrealized gains (losses) on derivatives	25,895			5,802			107,314			10,698
Realized gains (losses) on terminations of interest rate swaps	—			(16,143		)	—			(16,143		)
Net realized gains (losses) on derivatives	(1,393		)	(11,481		)	11,693			(20,839		)
Net gains (losses) on derivatives	24,502			(21,822		)	119,007			(26,284		)
Net unrealized gains (losses) on financial instruments at fair value	(18,364		)	67,762			(3,898		)	140,005
Net realized gains (losses) on sales of investments	2,167			4,541			2,167			9,708
Gains (losses) on extinguishment of debt	387			(48,014		)	10,057			(48,014		)
Total other gains (losses)	8,692			2,467			127,333			75,415
Other expenses:
Compensation and benefits	8,689			7,671			17,100			15,227
General and administrative expenses	5,860			4,585			11,349			8,625
Servicing fees	9,943			10,890			21,277			20,478
Deal expenses	2,095			1,345			3,183			12,698
Total other expenses	26,587			24,491			52,909			57,028
Income (loss) before income taxes	118,144			115,156			357,184			$	277,979
Income taxes	36			139			68			$	155
Net income (loss)	$	118,108		$	115,017		$	357,116		$	277,824
Dividend on preferred stock	9,400			9,400			18,800			14,683
Net income (loss) available to common shareholders	$	108,708		$	105,617		$	338,316		$	263,141
Net income (loss) per share available to common shareholders:
Basic	$	0.58		$	0.56		$	1.81		$	1.40
Diluted	$	0.58		$	0.56		$	1.80		$	1.40
Weighted average number of common shares outstanding:
Basic	186,994,743			187,779,406			187,272,469			187,770,626
Diluted	187,422,145			188,142,551			187,738,443			188,169,093
Dividends declared per share of common stock	$	0.50		$	0.50		$	1.00		$	1.00

(1) Includes interest income of consolidated VIEs of $229,746 and $234,437 for the quarters ended June 30, 2018 and 2017, respectively and interest income of consolidated VIEs of $464,772and $427,426 for the six months ended June 30, 2018 and 2017. See Note 8 to consolidated financial statements for further discussion.

(2) Includes interest expense of consolidated VIEs of $99,507 and $105,723 for the quarters ended June 30, 2018 and2017, respectively and interest expense of consolidated VIEs of $199,121 and $188,407 for the six months ended June 30, 2018 and 2017. See Note 8 to consolidated financial statements for further discussion.

See accompanying notes to consolidated financial statements.

3

CHIMERA INVESTMENT CORPORATION
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
(dollars in thousands, except share and per share data)
(Unaudited)
	For the Quarters Ended						For the Six Months Ended
	June 30, 2018			June 30, 2017			June 30, 2018			June 30, 2017
Comprehensive income (loss):
Net income (loss)	$	118,108		$	115,017		$	357,116		$	277,824
Other comprehensive income:
Unrealized gains (losses) on available-for-sale securities, net	(42,341		)	41,655			(131,157		)	37,744
Reclassification adjustment for net losses included in net income for other-than-temporary credit impairment losses	9,131			13,509			10,289			32,210
Reclassification adjustment for net realized losses (gains) included in net income	(4,383		)	(2,591		)	(4,383		)	(7,777		)
Other comprehensive income (loss)	(37,593		)	52,573			(125,251		)	62,177
Comprehensive income (loss) before preferred stock dividends	$	80,515		$	167,590		$	231,865		$	340,001
Dividends on preferred stock	$	9,400		$	9,400		$	18,800		$	14,683
Comprehensive income (loss) available to common stock shareholders	$	71,115		$	158,190		$	213,065		$	325,318

4

CHIMERA INVESTMENT CORPORATION
CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY
(dollars in thousands, except per share data)
(Unaudited)
	Series A Preferred Stock Par Value		Series B Preferred Stock Par Value		Common Stock Par Value			Additional Paid-in Capital			Accumulated Other Comprehensive Income			Cumulative Earnings		Cumulative Distributions to Stockholders			Total
Balance, December 31, 2016	$	58	$	—	$	1,877		$	3,508,779		$	718,106		$	2,443,184	$	(3,548,471	)	$	3,123,533
Net income (loss)	—		—		—			—			—			277,824		—			277,824
Other comprehensive income (loss)	—		—		—			—			62,177			—		—			62,177
Stock based compensation	—		—		1			1,602			—			—		—			1,603
Common dividends declared	—		—		—			—			—			—		(188,196		)	(188,196		)
Preferred dividends declared	—		—		—			—			—			—		(14,683		)	(14,683		)
Issuance of preferred stock	—		130		—			314,299			—			—		—			314,429
Balance, June 30, 2017	$	58	$	130	$	1,878		$	3,824,680		$	780,283		$	2,721,008	$	(3,751,350	)	$	3,576,687
Balance, December 31, 2017	$	58	$	130	$	1,878		$	3,826,691		$	796,902		$	2,967,852	$	(3,958,534	)	$	3,634,977
Net income (loss)	—		—		—			—			—			357,116		—			357,116
Other comprehensive income (loss)	—		—		—			—			(125,251		)	—		—			(125,251		)
Repurchase of common stock	—		—		(8		)	(14,826		)	—			—		—			(14,834		)
Stock based compensation	—		—		—			4,766			—			—		—			4,766
Common dividends declared	—		—		—			—			—			—		(187,832		)	(187,832		)
Preferred dividends declared	—		—		—			—			—			—		(18,800		)	(18,800		)
Balance, June 30, 2018	$	58	$	130	$	1,870		$	3,816,631		$	671,651		$	3,324,968	$	(4,165,166	)	$	3,650,142

See accompanying notes to consolidated financial statements.

5

CHIMERA INVESTMENT CORPORATION
CONSOLIDATED STATEMENTS OF CASH FLOWS
(dollars in thousands)
(Unaudited)
	For the Six Months Ended
	June 30, 2018			June 30, 2017
Cash Flows From Operating Activities:
Net income	$	357,116		$	277,824
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
(Accretion) amortization of investment discounts/premiums, net	11,301			(8,397		)
Accretion (amortization) of deferred financing costs and securitized debt discounts/premiums, net	(5,911		)	8,433
Amortization of swaption premium	1,157			4,385
Net unrealized losses (gains) on derivatives	(107,314		)	(10,698		)
Margin (paid) received on derivatives	19,171			2,161
Net unrealized losses (gains) on financial instruments at fair value	3,898			(140,005		)
Net realized losses (gains) on sales of investments	(2,167		)	(9,708		)
Net other-than-temporary credit impairment losses	10,289			32,210
(Gain) loss on extinguishment of debt	(10,057		)	48,014
Equity-based compensation expense	4,766			1,603
Changes in operating assets:
Decrease (increase) in accrued interest receivable, net	(6,088		)	(18,382		)
Decrease (increase) in other assets	23,711			(7,121		)
Changes in operating liabilities:
Increase (decrease) in accounts payable and other liabilities	(3,374		)	(3,249		)
Increase (decrease) in accrued interest payable, net	9,518			6,186
Net cash provided by (used in) operating activities	$	306,016		$	183,256
Cash Flows From Investing Activities:
Agency MBS portfolio:
Purchases	$	(2,764,785	)	$	(260,518	)
Sales	172			141,191
Principal payments	205,093			220,882
Non-Agency RMBS portfolio:
Purchases	(70,043		)	(5,663		)
Sales	10,407			5,045
Principal payments	327,923			263,804
Loans held for investment:
Purchases	(924,283		)	(4,515,440		)
Sales	379,002			—
Principal payments	944,146			808,067
Net cash provided by (used in) investing activities	$	(1,892,368	)	$	(3,342,632	)
Cash Flows From Financing Activities:
Proceeds from repurchase agreements	$	31,403,682		$	16,994,467
Payments on repurchase agreements	(29,525,962		)	(16,341,218		)
Net proceeds from preferred stock offerings	—			314,429
Payments on repurchase of common stock	(14,834		)	—
Proceeds from securitized debt borrowings, collateralized by loans held for investment	1,170,009			3,532,918
Payments on securitized debt borrowings, collateralized by loans held for investment	(1,188,154		)	(1,074,027		)
Payments on securitized debt borrowings, collateralized by Non-Agency RMBS	(25,097		)	(71,089		)
Common dividends paid	(187,390		)	(187,943		)
Preferred dividends paid	(18,800		)	(17,132		)
Net cash provided by (used in) financing activities	$	1,613,454		$	3,150,405
Net increase (decrease) in cash and cash equivalents	27,102			(8,971		)

6

Cash and cash equivalents at beginning of period	63,569			177,714
Cash and cash equivalents at end of period	$	90,671		$	168,743
Supplemental disclosure of cash flow information:
Interest received	$	608,779		$	513,210
Interest paid	$	306,911		$	233,568
Non-cash investing activities:
Payable for investments purchased	$	784,425		$	1,046,720
Net change in unrealized gain (loss) on available-for sale securities	$	(125,251	)	$	62,177
Non-cash financing activities:
Common dividends declared, not yet paid	$	95,807		$	94,809

See accompanying notes to consolidated financial statements.

7

CHIMERA INVESTMENT CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

1. Organization

Chimera Investment Corporation (the “Company”) was organized in Maryland on June 1, 2007. The Company commenced operations on November 21, 2007 when it completed its initial public offering. The Company elected to be taxed as a real estate investment trust (“REIT”) under the Internal Revenue Code of 1986, as amended, and regulations promulgated thereunder (the “Code”).

The Company conducts its operations through various subsidiaries including subsidiaries it treats as taxable REIT subsidiaries (“TRS”). In general, a TRS may hold assets and engage in activities that the Company cannot hold or engage in directly and generally may engage in any real estate or non-real estate related business. The Company currently has nine wholly owned direct subsidiaries: Chimera RMBS Whole Pool LLC, and Chimera RMBS LLC formed in June 2009; CIM Trading Company LLC (“CIM Trading”), formed in July 2010; Chimera Funding TRS LLC (“CIM Funding TRS”), a TRS formed in October 2013, Chimera CMBS Whole Pool LLC and Chimera RMBS Securities LLC formed in March 2015; Chimera Insurance Company, LLC formed in July 2015; Chimera RR Holdings LLC formed in April 2016, and Anacostia LLC, a TRS formed in June 2018.

2. Summary of the Significant Accounting Policies

(a) Basis of Presentation and Consolidation

The accompanying consolidated financial statements and related notes of the Company have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”). In the opinion of management, all adjustments considered necessary for a fair presentation of the Company's financial position, results of operations and cash flows have been included. Certain prior period amounts have been reclassified to conform to the current period's presentation.

The consolidated financial statements include, the Company’s accounts, the accounts of its wholly-owned subsidiaries, and variable interest entities (“VIEs”) in which the Company is the primary beneficiary. All intercompany balances and transactions have been eliminated in consolidation.

The Company uses securitization trusts considered to be VIEs in its securitization and re-securitization transactions. VIEs are defined as entities in which equity investors (i) do not have the characteristics of a controlling financial interest, or (ii) do not have sufficient equity at risk for the entity to finance its activities without additional subordinated financial support from other parties. The entity that consolidates a VIE is known as its primary beneficiary, and is generally the entity with (i) the power to direct the activities that most significantly impact the VIEs’ economic performance, and (ii) the right to receive benefits from the VIE or the obligation to absorb losses of the VIE that could be significant to the VIE. For VIEs that do not have substantial on-going activities, the power to direct the activities that most significantly impact the VIEs’ economic performance may be determined by an entity’s involvement with the design and structure of the VIE.

The trusts are structured as entities that receive principal and interest on the underlying collateral and distribute those payments to the security holders. The assets held by the securitization entities are restricted in that they can only be used to fulfill the obligations of the securitization entity. The Company’s risks associated with its involvement with these VIEs are limited to its risks and rights as a holder of the security it has retained.

Determining the primary beneficiary of a VIE requires judgment. The Company determined that for the securitizations it consolidates, its ownership provides the Company with the obligation to absorb losses or the right to receive benefits from the VIE that could be significant to the VIE. In addition, the Company has the power to direct the activities of the VIEs that most significantly impact the VIEs’ economic performance (“power”) such as rights to direct servicer activity or the Company was determined to have power in connection with its involvement with the structure and design of the VIE.

The Company’s interest in the assets held by these securitization vehicles, which are consolidated on the Company’s Statements of Financial Condition, is restricted by the structural provisions of these trusts, and a recovery of the Company’s investment in the vehicles will be limited by each entity’s distribution provisions. The liabilities of the securitization vehicles, which are also consolidated on the Company’s Statements of Financial Condition, are non-recourse to the Company, and can only be satisfied from each securitization vehicle’s respective asset pool.

8

The assets of securitization entities are comprised of residential mortgage backed securities (“RMBS”) or residential mortgage loans. See Notes 3, 4 and 8 for further discussion of the characteristics of the securities and loans in the Company’s portfolio.

(b) Statements of Financial Condition Presentation

The Company’s Consolidated Statements of Financial Condition include both the Company’s direct assets and liabilities and the assets and liabilities of consolidated securitization vehicles. Assets of each consolidated VIE can only be used to satisfy the obligations of that VIE, and the liabilities of consolidated VIEs are non-recourse to the Company. The Company is not obligated to provide, nor does it intend to provide, any financial support to these consolidated securitization vehicles. The notes to the consolidated financial statements describe the Company’s assets and liabilities including the assets and liabilities of consolidated securitization vehicles. See Note 8 for additional information related to the Company’s investments in consolidated securitization vehicles.

(c) 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 disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Although the Company’s estimates contemplate current conditions and how it expects them to change in the future, it is reasonably possible that actual conditions could be materially different than anticipated in those estimates, which could have a material adverse impact on the Company’s results of operations and its financial condition. Management has made significant estimates including in accounting for income recognition and OTTI on Agency and Non-Agency RMBS and IO MBS (Note 3), valuation of Agency MBS and Non-Agency RMBS (Notes 3 and 5), residential mortgage loans (Note 4), securitized debt (Note 7) and derivative instruments (Notes 5 and 9). Actual results could differ materially from those estimates.

(d) Significant Accounting Policies

There have been no significant changes to the Company's accounting policies included in Note 2 to the consolidated financial statements of the Company’s Form 10-K for the year ended December 31, 2017, other than the significant accounting policies disclosed below.

Income Taxes

The Company does not have any unrecognized tax positions that would affect its financial statements or require disclosure. No accruals for penalties and interest were necessary as of June 30, 2018 or December 31, 2017.

Fair Value Disclosure

A complete discussion of the methodology utilized by the Company to estimate the fair value of its financial instruments is included in Note 5 to these consolidated financial statements.

(e) Recent Accounting Pronouncements

Income Statement - Reporting Comprehensive Income - (Topic 220)

In February 2018, the FASB issued ASU No. 2018-02, Income Statement - Reporting Comprehensive Income - Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. The amendments in this update allow a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act. Consequently, the amendments eliminate the stranded tax effects resulting from the Tax Cuts and Jobs Act and will improve the usefulness of information reported to financial statement users. However, because the amendments only relate to the reclassification of the income tax effects of the Tax Cuts and Jobs Act, the underlying guidance that requires that the effect of a change in tax laws or rates be included in income from continuing operations is not affected. The amendments in this Update also require certain disclosures about stranded tax effects. The guidance in the ASU is effective for the Company as of January 1, 2019. Early adoption is allowed. The Company is not planning to early adopt and is currently evaluating what impact this update will have on the consolidated financial statements.

Derivatives and Hedging - Targeted improvements to Accounting for Hedging Activities (Topic 815)

9

In August 2017, the FASB issued ASU No. 2017-12, Derivatives and Hedging - Targeted improvements to Accounting for Hedging Activities. This update is issued with the objective of improving the financial reporting of hedging relationships to better portray the economic results of an entity’s risk management activities in its financial statements. In addition, the amendments in this update make certain targeted improvements to simplify the application of the hedge accounting guidance in current GAAP. The guidance in the ASU is effective for the Company as of January 1, 2019. Early adoption is allowed. The Company is not planning to early adopt and is currently evaluating what impact this update will have on the consolidated financial statements.

Financial Instruments - Credit Losses - (Topic 326)

In June 2016, the FASB issued ASU No. 2016-13, Measurement of Credit Losses on Financial Instruments. This update replaces the current model for recognizing credit losses from an incurred credit loss model to a current expected credit loss (CECL) model for instruments measured at amortized cost and requires entities to record allowances for available-for-sale (AFS) debt securities when the fair value of an AFS debt security is below the amortized cost of the asset rather than reduce the carrying amount, as the Company does under the current OTTI model. This update also simplifies the accounting model for purchased credit-impaired debt securities and loans. The changes in the allowances created in accordance with this update will be recorded in earnings. The update also expands the disclosure requirements regarding the Company's assumptions, models, and methods for estimating the expected credit losses. In addition, the Company will disclose the amortized cost balance for each class of financial asset by credit quality indicator, disaggregated by the year of origination. The guidance in the ASU is effective for the Company as of January 1, 2020. Early adoption is allowed, beginning January 1, 2019. The standard requires entities to record a cumulative-effect adjustment to the statement of financial position as of the beginning of the first reporting period in which the guidance is effective. The Company is currently evaluating what impact this update will have on the consolidated financial statements.

3. Mortgage-Backed Securities

The Company classifies its Non-Agency RMBS as senior, senior IO, subordinated, or subordinated IO. The Company also invests in residential, commercial and IO Agency MBS. Senior interests in Non-Agency RMBS are considered to be entitled to the first principal repayments in their pro-rata ownership interests at the acquisition date. The tables below present amortized cost, fair value and unrealized gain/losses of Company's MBS investments as of June 30, 2018 and December 31, 2017.

			June 30, 2018
			(dollars in thousands)
	Principal or Notional Value		Total Premium		Total Discount			Amortized Cost		Fair Value		Gross Unrealized Gains		Gross Unrealized Losses			Net Unrealized Gain/(Loss)
Non-Agency RMBS
Senior	$	2,522,667	$	628	$	(1,180,560	)	$	1,342,735	$	2,063,786	$	721,524	$	(473	)	$	721,051
Senior, interest-only	5,282,885		302,960		—			302,960		252,324		26,074		(76,710		)	(50,636		)
Subordinated	365,499		9,842		(170,202		)	205,139		266,830		61,963		(272		)	61,691
Subordinated, interest-only	206,557		9,279		—			9,279		10,482		1,830		(627		)	1,203
Agency MBS
Residential	4,527,730		167,342		—			4,695,072		4,612,920		9,528		(91,680		)	(82,152		)
Commercial	2,300,891		52,422		(4,509		)	2,348,804		2,273,508		944		(76,240		)	(75,296		)
Interest-only	3,010,512		109,938		—			109,938		102,901		954		(7,991		)	(7,037		)
Total	$	18,216,741	$	652,411	$	(1,355,271	)	$	9,013,927	$	9,582,751	$	822,817	$	(253,993	)	$	568,824

10

			December 31, 2017
			(dollars in thousands)
	Principal or Notional Value		Total Premium		Total Discount			Amortized Cost		Fair Value		Gross Unrealized Gains		Gross Unrealized Losses			Net Unrealized Gain/(Loss)
Non-Agency RMBS
Senior	$	2,733,926	$	540	$	(1,257,103	)	$	1,477,363	$	2,231,415	$	754,234	$	(182	)	$	754,052
Senior, interest-only	4,862,461		262,996		—			262,996		210,850		15,761		(67,907		)	(52,146		)
Subordinated	501,455		10,571		(177,206		)	334,820		401,225		66,704		(299		)	66,405
Subordinated, interest-only	201,378		7,369		—			7,369		7,826		902		(445		)	457
Agency MBS
Residential	2,227,128		123,245		—			2,350,373		2,322,180		5,706		(33,899		)	(28,193		)
Commercial	1,894,594		47,430		(4,685		)	1,937,339		1,938,281		17,041		(16,099		)	942
Interest-only	3,021,840		111,277		—			111,277		104,367		834		(7,744		)	(6,910		)
Total	$	15,442,782	$	563,428	$	(1,438,994	)	$	6,481,537	$	7,216,144	$	861,182	$	(126,575	)	$	734,607

The table below presents changes in accretable yield, or the excess of the security’s cash flows expected to be collected over the Company’s investment, solely as it pertains to the Company’s Non-Agency RMBS portfolio accounted for according to the provisions of ASC 310-30.

	For the Quarters Ended						For the Six Months Ended
	June 30, 2018			June 30, 2017			June 30, 2018			June 30, 2017
	(dollars in thousands)						(dollars in thousands)
Balance at beginning of period	$	1,293,996		$	1,513,416		$	1,303,590		$	1,550,110
Purchases	5,734			1,969			5,734			10,185
Yield income earned	(57,786		)	(67,750		)	(117,517		)	(136,577		)
Reclassification (to) from non-accretable difference	31,471			(62,059		)	81,496			(38,107		)
Sales and deconsolidation	(6,775		)	(2,388		)	(6,663		)	(2,423		)
Balance at end of period	$	1,266,640		$	1,383,188		$	1,266,640		$	1,383,188

The table below presents the outstanding principal balance and related amortized cost at June 30, 2018 and December 31, 2017 as it pertains to the Company’s Non-Agency RMBS portfolio accounted for according to the provisions of ASC 310-30.

	For the Six Months Ended		For the Year Ended
	June 30, 2018		December 31, 2017
	(dollars in thousands)
Outstanding principal balance:
Beginning of period	$	2,673,350	$	3,138,265
End of period	$	2,476,421	$	2,673,350
Amortized cost:
Beginning of period	$	1,381,839	$	1,695,079
End of period	$	1,249,140	$	1,381,839

The following tables present the gross unrealized losses and estimated fair value of the Company’s RMBS by length of time that such securities have been in a continuous unrealized loss position at June 30, 2018 and December 31, 2017. All securities in an unrealized loss position have been evaluated by the Company for OTTI as discussed in Note 2(d) of 2017, Form 10-K.

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						June 30, 2018
						(dollars in thousands)
	Unrealized Loss Position for Less than 12 Months						Unrealized Loss Position for 12 Months or More						Total
	Estimated Fair Value		Unrealized Losses			Number of Securities	Estimated Fair Value		Unrealized Losses			Number of Securities	Estimated Fair Value		Unrealized Losses			Number of Securities
Non-Agency RMBS
Senior	$	43,709	$	(473	)	3	$	—	$	—		—	$	43,709	$	(473	)	3
Senior, interest-only	25,400		(4,391		)	31	103,442		(72,319		)	104	128,842		(76,710		)	135
Subordinated	1,016		(272		)	5	—		—			6	1,016		(272		)	11
Subordinated, interest-only	112		(18		)	1	704		(609		)	3	816		(627		)	4
Agency MBS
Residential	1,618,829		(23,966		)	36	1,318,668		(67,714		)	94	2,937,497		(91,680		)	130
Commercial	1,713,531		(60,698		)	506	321,813		(15,542		)	114	2,035,344		(76,240		)	620
Interest-only	12,375		(689		)	7	48,211		(7,302		)	20	60,586		(7,991		)	27
Total	$	3,414,972	$	(90,507	)	589	$	1,792,838	$	(163,486	)	341	$	5,207,810	$	(253,993	)	930

						December 31, 2017
						(dollars in thousands)
	Unrealized Loss Position for Less than 12 Months						Unrealized Loss Position for 12 Months or More						Total
	Estimated Fair Value		Unrealized Losses			Number of Securities	Estimated Fair Value		Unrealized Losses			Number of Securities	Estimated Fair Value		Unrealized Losses			Number of Securities
Non-Agency RMBS
Senior	$	35,229	$	(182	)	1	$	—	$	—		—	$	35,229	$	(182	)	1
Senior, interest-only	28,129		(1,724		)	27	120,120		(66,183		)	120	148,249		(67,907		)	147
Subordinated	235		(38		)	7	6,261		(261		)	5	6,496		(299		)	12
Subordinated, interest-only	—		—			—	945		(445		)	3	945		(445		)	3
Agency MBS
Residential	660,103		(5,197		)	21	1,471,464		(28,702		)	93	2,131,567		(33,899		)	114
Commercial	830,889		(11,695		)	176	161,980		(4,404		)	91	992,869		(16,099		)	267
Interest-only	15,142		(641		)	7	57,875		(7,103		)	24	73,017		(7,744		)	31
Total	$	1,569,727	$	(19,477	)	239	$	1,818,645	$	(107,098	)	336	$	3,388,372	$	(126,575	)	575

At June 30, 2018, the Company did not intend to sell any of its RMBS that were in an unrealized loss position, and it was not more likely than not that the Company would be required to sell these RMBS before recovery of their amortized cost basis, which may be at their maturity. With respect to RMBS held by consolidated VIEs, the ability of any entity to cause the sale by the VIE prior to the maturity of these RMBS is either expressly prohibited, not probable, or is limited to specified events of default, none of which have occurred as of June 30, 2018.

Gross unrealized losses on the Company’s Agency residential and commercial MBS (excluding Agency MBS which are reported at fair value with changes in fair value recorded in earnings) were $111 million and $41 million as of June 30, 2018 and December 31, 2017, respectively. Given the inherent credit quality of Agency MBS, the Company does not consider any of the current impairments on its Agency MBS to be credit related. In evaluating whether it is more likely than not that it will be required to sell any impaired security before its anticipated recovery, which may be at their maturity, the Company considers the significance of each investment, the amount of impairment, the projected future performance of such impaired securities, as well as the Company’s current and anticipated leverage capacity and liquidity position. Based on these analyses, the Company determined that at June 30, 2018 and December 31, 2017, unrealized losses on its Agency MBS were temporary.

Gross unrealized losses on the Company’s Non-Agency RMBS (excluding Non-Agency MBS which are reported at fair value with changes in fair value recorded in earnings) were $745 thousand and $283 thousand at June 30, 2018 and December 31, 2017, respectively. Based upon the most recent evaluation, the Company does not consider these unrealized losses to be indicative of OTTI and does not believe that these unrealized losses are credit related, but rather are due to other factors. The

12

Company has reviewed its Non-Agency RMBS that are in an unrealized loss position to identify those securities with losses that are other-than-temporary based on an assessment of changes in cash flows expected to be collected for such RMBS, which considers recent bond performance and expected future performance of the underlying collateral.

A summary of the OTTI included in earnings for the quarters and six months ended June 30, 2018 and 2017 are presented below.

	For the Quarter Ended						For the Six Months Ended
	June 30, 2018			June 30, 2017			June 30, 2018			June 30, 2017
	(dollars in thousands)						(dollars in thousands)
Total other-than-temporary impairment losses	$	(805	)	$	(749	)	$	(1,099	)	$	(3,462	)
Portion of loss recognized in other comprehensive income (loss)	(8,326		)	(12,760		)	(9,190		)	(28,748		)
Net other-than-temporary credit impairment losses	$	(9,131	)	$	(13,509	)	$	(10,289	)	$	(32,210	)

The following table presents a roll forward of the credit loss component of OTTI on the Company’s Non-Agency RMBS for which a portion of loss was recognized in OCI. The table delineates between those securities that are recognizing OTTI for the first time as opposed to those that have previously recognized OTTI.

	For the Quarters Ended						For the Six Months Ended
	June 30, 2018			June 30, 2017			June 30, 2018			June 30, 2017
	(dollars in thousands)
Cumulative credit loss beginning balance	$	586,056		$	558,229		$	591,521		$	556,485
Additions:
Other-than-temporary impairments not previously recognized	—			12,399			1,140			12,399
Reductions for securities sold or deconsolidated during the period	(4,775		)	—			(4,948		)	(7,443		)
Increases related to other-than-temporary impairments on securities with previously recognized other-than-temporary impairments	9,131			1,109			9,149			17,835
Reductions for increases in cash flows expected to be collected over the remaining life of the securities	(7,751		)	(99		)	(14,201		)	(7,638		)
Cumulative credit impairment loss ending balance	$	582,661		$	571,638		$	582,661		$	571,638

Cash flows generated to determine net other-than-temporary credit impairment losses recognized in earnings are estimated using significant unobservable inputs. The significant inputs used to measure the component of OTTI recognized in earnings for the Company’s Non-Agency RMBS for the periods reported are summarized as follows:

13

	For the Six Months Ended
	June 30, 2018	June 30, 2017
Loss Severity
Weighted Average	66%	62%
Range	34% - 132%	28% - 67%
60+ days delinquent
Weighted Average	23%	19%
Range	16% - 30%	11% - 25%
Credit Enhancement (1)
Weighted Average	32%	19%
Range	0% - 55%	0% - 38%
3 Month CPR
Weighted Average	10%	12%
Range	0% - 39%	2% - 24%
12 Month CPR
Weighted Average	8%	11%
Range	1% - 20%	4% - 19%

(1)Calculated as the combined credit enhancement to the Re-REMIC and underlying from each of their respective capital structures.

The following tables present a summary of unrealized gains and losses at June 30, 2018 and December 31, 2017.

			June 30, 2018
			(dollars in thousands)
	Gross Unrealized Gain Included in Accumulated Other Comprehensive Income		Gross Unrealized Gain Included in Cumulative Earnings		Total Gross Unrealized Gain		Gross Unrealized Loss Included in Accumulated Other Comprehensive Income			Gross Unrealized Loss Included in Cumulative Earnings			Total Gross Unrealized Loss
Non-Agency RMBS
Senior	$	721,524	$	—	$	721,524	$	(473	)	$	—		$	(473	)
Senior, interest-only	—		26,074		26,074		—			(76,710		)	(76,710		)
Subordinated	58,887		3,076		61,963		(272		)	—			(272		)
Subordinated, interest-only	—		1,830		1,830		—			(627		)	(627		)
Agency MBS
Residential	2,316		7,212		9,528		(70,382		)	(21,298		)	(91,680		)
Commercial	686		258		944		(40,635		)	(35,605		)	(76,240		)
Interest-only	—		954		954		—			(7,991		)	(7,991		)
Total	$	783,413	$	39,404	$	822,817	$	(111,762	)	$	(142,231	)	$	(253,993	)

			December 31, 2017
			(dollars in thousands)
	Gross Unrealized Gain Included in Accumulated Other Comprehensive Income		Gross Unrealized Gain Included in Cumulative Earnings		Total Gross Unrealized Gain		Gross Unrealized Loss Included in Accumulated Other Comprehensive Income			Gross Unrealized Loss Included in Cumulative Earnings			Total Gross Unrealized Loss
Non-Agency RMBS
Senior	$	754,234	$	—	$	754,234	$	(182	)	$	—		$	(182	)
Senior, interest-only	—		15,761		15,761		—			(67,907		)	(67,907		)
Subordinated	62,989		3,715		66,704		(102		)	(197		)	(299		)
Subordinated, interest-only	—		902		902		—			(445		)	(445		)
Agency MBS
Residential	5,706		—		5,706		(29,083		)	(4,816		)	(33,899		)
Commercial	15,462		1,579		17,041		(12,122		)	(3,977		)	(16,099		)
Interest-only	—		834		834		—			(7,744		)	(7,744		)
Total	$	838,391	$	22,791	$	861,182	$	(41,489	)	$	(85,086	)	$	(126,575	)

14

Changes in prepayments, actual cash flows, and cash flows expected to be collected, among other items, are affected by the collateral characteristics of each asset class. The Company chooses assets for the portfolio after carefully evaluating each investment’s risk profile.

The following tables provide a summary of the Company’s MBS portfolio at June 30, 2018 and December 31, 2017.

	June 30, 2018
	Principal or Notional Value at Period-End (dollars in thousands)		Weighted Average Amortized Cost Basis		Weighted Average Fair Value		Weighted Average Coupon		Weighted Average Yield at Period-End (1)
Non-Agency RMBS
Senior	$	2,522,667	$	53.23	$	81.81	4.8	%	17.7	%
Senior, interest-only	5,282,885		5.73		4.78		1.4	%	9.1	%
Subordinated	365,499		56.13		73.00		4.0	%	10.8	%
Subordinated, interest-only	206,557		4.49		5.07		0.9	%	11.8	%
Agency MBS
Residential pass-through	4,527,730		103.70		101.88		4.0	%	3.4	%
Commercial pass-through	2,300,891		102.08		98.81		3.6	%	3.4	%
Interest-only	3,010,512		3.65		3.42		0.7	%	3.3	%

(1) Bond Equivalent Yield at period end.

	December 31, 2017
	Principal or Notional Value at Period-End (dollars in thousands)		Weighted Average Amortized Cost Basis		Weighted Average Fair Value		Weighted Average Coupon		Weighted Average Yield at Period-End (1)
Non-Agency RMBS
Senior	$	2,733,926	$	54.04	$	81.62	4.6	%	16.7	%
Senior, interest-only	4,862,461		5.41		4.34		1.3	%	8.0	%
Subordinated	501,455		66.77		80.01		4.1	%	9.6	%
Subordinated, interest-only	201,378		3.66		3.89		0.8	%	11.8	%
Agency MBS
Residential pass-through	2,227,128		105.53		104.27		3.8	%	2.9	%
Commercial pass-through	1,894,594		102.26		102.31		3.6	%	3.2	%
Interest-only	3,021,840		3.68		3.45		0.7	%	3.4	%

(1) Bond Equivalent Yield at period end.

The following table presents the weighted average credit rating of the Company’s Non-Agency RMBS portfolio at June 30, 2018 and December 31, 2017.

	June 30, 2018		December 31, 2017
AAA	0.3	%	0.3	%
AA	0.9	%	0.3	%
A	0.1	%	0.6	%
BBB	1.4	%	1.9	%
BB	2.0	%	2.5	%
B	2.1	%	2.3	%
Below B	57.8	%	59.6	%
Not Rated	35.4	%	32.5	%
Total	100.0	%	100.0	%

15

Actual maturities of MBS are generally shorter than the stated contractual maturities. Actual maturities of the Company’s MBS are affected by the contractual lives of the underlying mortgages, periodic payments of principal and prepayments of principal. The following tables provide a summary of the fair value and amortized cost of the Company’s MBS at June 30, 2018 and December 31, 2017 according to their estimated weighted-average life classifications. The weighted-average lives of the MBS in the tables below are based on lifetime expected prepayment rates using an industry prepayment model for the Agency MBS portfolio and the Company’s prepayment assumptions for the Non-Agency RMBS. The prepayment model considers current yield, forward yield, steepness of the interest rate curve, current mortgage rates, mortgage rates of the outstanding loan, loan age, margin, and volatility.

	June 30, 2018
	(dollars in thousands)
	Weighted Average Life
	Less than one year		Greater than one year and less than five years		Greater than five years and less than ten years		Greater than ten years		Total
Fair value
Non-Agency RMBS
Senior	$	5,461	$	536,951	$	816,498	$	704,876	$	2,063,786
Senior interest-only	6		47,491		95,502		109,325		252,324
Subordinated	3,891		44,590		126,300		92,049		266,830
Subordinated interest-only	—		7,954		333		2,195		10,482
Agency MBS
Residential	—		—		4,600,496		12,424		4,612,920
Commercial	—		15,663		19,123		2,238,722		2,273,508
Interest-only	11,313		64,338		22,794		4,456		102,901
Total fair value	$	20,671	$	716,987	$	5,681,046	$	3,164,047	$	9,582,751
Amortized cost
Non-Agency RMBS
Senior	$	5,347	$	387,067	$	489,371	$	460,950	$	1,342,735
Senior interest-only	102		60,821		120,956		121,081		302,960
Subordinated	3,838		34,758		88,839		77,704		205,139
Subordinated interest-only	—		6,270		838		2,171		9,279
Agency MBS
Residential	—		—		4,682,192		12,880		4,695,072
Commercial	—		15,769		20,374		2,312,661		2,348,804
Interest-only	11,264		69,648		24,895		4,131		109,938
Total amortized cost	$	20,551	$	574,333	$	5,427,465	$	2,991,578	$	9,013,927

16

	December 31, 2017
	(dollars in thousands)
	Weighted Average Life
	Less than one year		Greater than one year and less than five years		Greater than five years and less than ten years		Greater than ten years		Total
Fair value
Non-Agency RMBS
Senior	$	2,179	$	681,086	$	910,234	$	637,916	$	2,231,415
Senior interest-only	19		54,107		72,702		84,022		210,850
Subordinated	—		75,495		121,555		204,175		401,225
Subordinated interest-only	—		7,165		661		—		7,826
Agency MBS
Residential	—		21,777		2,300,403		—		2,322,180
Commercial	—		45,770		16,559		1,875,952		1,938,281
Interest-only	—		74,490		25,271		4,606		104,367
Total fair value	$	2,198	$	959,890	$	3,447,385	$	2,806,671	$	7,216,144
Amortized cost
Non-Agency RMBS
Senior	$	2,124	$	493,965	$	569,458	$	411,816	$	1,477,363
Senior interest-only	1,271		73,758		94,145		93,822		262,996
Subordinated	—		61,987		91,044		181,789		334,820
Subordinated interest-only	—		6,355		1,014		—		7,369
Agency MBS
Residential	—		22,069		2,328,304		—		2,350,373
Commercial	—		47,170		17,176		1,872,993		1,937,339
Interest-only	—		79,356		27,582		4,339		111,277
Total amortized cost	$	3,395	$	784,660	$	3,128,723	$	2,564,759	$	6,481,537

The Non-Agency RMBS portfolio is subject to credit risk. The Non-Agency RMBS portfolio is primarily collateralized by Alt-A first lien mortgages. An Alt-A mortgage is a type of U.S. mortgage that, for various reasons, is considered riskier than A-paper, or prime, and less risky than subprime, the riskiest category. Alt-A interest rates, which are determined by credit risk, therefore tend to be between those of prime and subprime home loans. Typically, Alt-A mortgages are characterized by borrowers with less than full documentation, lower credit scores and higher loan-to-value ratios. At origination of the loan, Alt-A mortgage securities are defined as Non-Agency RMBS where (i) the underlying collateral has weighted average FICO scores between 680 and 720 or (ii) the FICO scores are greater than 720 and RMBS have 30% or less of the underlying collateral composed of full documentation loans. At June 30, 2018 and December 31, 2017, 67% and 66% of the Non-Agency RMBS collateral was classified as Alt-A, respectively. At June 30, 2018 and December 31, 2017, 15% and 13% of the Non-Agency RMBS collateral was classified as prime, respectively. The remaining Non-Agency RMBS collateral is classified as subprime.

The Non-Agency RMBS in the Portfolio have the following collateral characteristics at June 30, 2018 and December 31, 2017.

	June 30, 2018				December 31, 2017
Weighted average maturity (years)		20.4				20.7
Weighted average amortized loan to value (1)		63.3		%		64.4		%
Weighted average FICO (2)		703				697
Weighted average loan balance (in thousands)		$	324			$	314
Weighted average percentage owner occupied		84.5		%		84.4		%
Weighted average percentage single family residence		65.7		%		66.3		%
Weighted average current credit enhancement		1.5		%		2.2		%
Weighted average geographic concentration of top four states	CA	32.4		%	CA	31.7		%
	NY	8.4		%	NY	8.5		%
	FL	8.1		%	FL	8.3		%
	NJ	2.6		%	NJ	2.7		%

(1) Value represents appraised value of the collateral at the time of loan origination.

(2) FICO as determined at the time of loan origination.

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The table below presents the origination year of the underlying loans related to the Company’s portfolio of Non-Agency RMBS at June 30, 2018 and December 31, 2017.

Origination Year	June 30, 2018		December 31, 2017
2003 and prior	4.8	%	3.6	%
2004	6.5	%	4.3	%
2005	20.1	%	20.8	%
2006	39.4	%	38.2	%
2007	23.6	%	30.4	%
2008	0.3	%	1.8	%
2009 and later	5.3	%	0.9	%
Total	100.0	%	100.0	%

Gross realized gains and losses are recorded in “Net realized gains (losses) on sales of investments” on the Company’s Consolidated Statements of Operations. The proceeds and gross realized gains and gross realized losses from sales of investments for the quarters and six months ended June 30, 2018 and 2017 are as follows:

	For the Quarter Ended						For the Six Months Ended
	June 30, 2018			June 30, 2017			June 30, 2018			June 30, 2017
	(dollars in thousands)
Proceeds from sales	$	32,551		$	153,681		$	32,551		$	173,743
Gross realized gains	4,383			5,380			4,383			10,566
Gross realized losses	(2,216		)	(839		)	(2,216		)	(858		)
Net realized gain (loss)	$	2,167		$	4,541		$	2,167		$	9,708

Included in the gross realized gains for the quarter and six months ended June 30, 2018 in the table above are exchanges of securities with a fair value of $22 million. The Company exchanged its investment in a re-remic security for the underlying collateral supporting the group related to the exchanged asset. These exchanges were treated as non-cash sales and purchases and resulted in a realized gain of $2 million, reflected in earnings for the quarter and six months ended June 30, 2018. For the quarter and six months ended June 30, 2017, the fair value of these exchanges of securities was $8 million and $28 million, and resulted in a realized gain of $256 thousand and $5 million, respectively.

4. Loans Held for Investment

The Loans held for investment are comprised primarily of loans collateralized by seasoned subprime residential mortgages. Additionally, it includes non-conforming, single family, owner occupied, jumbo, prime residential mortgages.

At June 30, 2018, all Loans held for investment are carried at fair value. See Note 5 for a discussion on how the Company determines the fair values of the Loans held for investment. As changes in the fair value of these loans are reflected in earnings, the Company does not estimate or record a loan loss provision. The total amortized cost of our Loans held for investment was $12.9 billion and $13.3 billion as of June 30, 2018 and December 31, 2017, respectively.

The following table provides a summary of the changes in the carrying value of Loans held for investment at fair value at June 30, 2018 and December 31, 2017:

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	For the Six Months Ended			For the Year Ended
	June 30, 2018			December 31, 2017
	(dollars in thousands)
Balance, beginning of period	$	13,678,263		$	8,753,653
Purchases	924,283			6,539,765
Principal paydowns	(944,146		)	(1,788,409		)
Sales and settlements	(389,798		)	2,876
Net periodic accretion (amortization)	(43,594		)	(35,803		)
Change in fair value	21,513			206,181
Balance, end of period	$	13,246,521		$	13,678,263

The primary cause of the change in fair value is due to market demand and changes in credit risk of mortgage loans.

Residential mortgage loans

The loan portfolio for all residential mortgages were originated during the following years:

Origination Year	June 30, 2018		December 31, 2017
2002 and prior	7.5	%	7.5	%
2003	6.7	%	6.7	%
2004	14.4	%	14.6	%
2005	20.1	%	20.4	%
2006	23.3	%	23.1	%
2007	19.1	%	19.0	%
2008	6.0	%	6.0	%
2009	0.8	%	0.7	%
2010 and later	2.1	%	2.0	%
Total	100.0	%	100.0	%

The following table presents a summary of key characteristics of the residential loan portfolio at June 30, 2018 and December 31, 2017:

	June 30, 2018				December 31, 2017
Number of loans		144,451				149,172
Weighted average maturity (years)		18.8				18.8
Weighted average loan to value (1)		87.5		%		88.0		%
Weighted average FICO (1)		630				631
Weighted average loan balance (in thousands)		$	91			$	91
Weighted average percentage owner occupied		92.8		%		95.0		%
Weighted average percentage single family residence		86.2		%		86.0		%
Weighted average geographic concentration of top five states	CA	9.1		%	CA	9.0		%
	FL	7.2		%	FL	7.2		%
	OH	6.0		%	OH	6.1		%
	NY	5.6		%	PA	5.6		%
	PA	5.6		%	VA	5.5		%

(1) As provided by the Trustee.

The following table summarizes the outstanding principal balance of the residential loan portfolio which are 30 days delinquent and greater as reported by the servicer at June 30, 2018 and December 31, 2017.

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	30 Days Delinquent	60 Days Delinquent	90+ Days Delinquent	Bankruptcy	Foreclosure	REO	Total	Unpaid Principal/Notional
	(dollars in thousands)
June 30, 2018	$797,730	$288,255	$396,269	$244,955	$262,100	$34,519	$2,023,828	$13,083,186
% of Unpaid Principal Balance	6.1%	2.2%	3.0%	1.9%	2.0%	0.3%	15.5%
December 31, 2017	$888,535	$353,810	$435,876	$272,778	$200,376	$31,008	$2,182,383	$13,525,820
% of Unpaid Principal Balance	6.6%	2.6%	3.2%	2.0%	1.5%	0.2%	16.1%

The fair value of residential mortgage loans 90 days or more past due was $549 million and $577 million as of June 30, 2018 and December 31, 2017, respectively.

Real estate owned

Real estate owned (“REO”) represents properties which the Company has received the legal title of the property to satisfy the outstanding loan. REO is re-categorized from loan to REO when the Company takes legal title of the property. REO assets are measured and reported at the estimated fair value less the estimated cost to sell at the end of each reporting period. At the time the asset is re-categorized, any difference between the previously recorded loan balance and the carrying value of the REO at the time the Company takes legal title of the property, is recognized as a gain or loss. All REO assets of the Company are held-for-sale and it is the Company’s intention to sell the property in the shortest time possible to maximize their return and recovery on the previously recorded loan. The carrying value of REO assets at June 30, 2018 and December 31, 2017 was $16 million and $10 million, respectively, and were recorded in Other Assets on the Company’s consolidated statements of financial condition.

5. Fair Value Measurements

The Company applies fair value guidance in accordance with GAAP to account for its financial instruments. The Company categorizes its financial instruments, based on the priority of the inputs to the valuation technique, into a three-level fair value hierarchy. The fair value hierarchy gives the highest priority to quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). If the inputs used to measure the financial instruments fall within different levels of the hierarchy, the categorization is based on the lowest level input that is significant to the fair value measurement of the instrument. Financial assets and liabilities recorded at fair value on the Consolidated Statements of Financial Condition or disclosed in the related notes are categorized based on the inputs to the valuation techniques as follows:

Level 1 – inputs to the valuation methodology are quoted prices (unadjusted) for identical assets and liabilities in active markets.

Level 2 – inputs to the valuation methodology include quoted prices for similar assets and liabilities in active markets, and inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instrument.

Level 3 – inputs to the valuation methodology are unobservable and significant to fair value.

Fair value measurements categorized within Level 3 are sensitive to changes in the assumptions or methodology used to determine fair value and such changes could result in a significant increase or decrease in the fair value. Any changes to the valuation methodology are reviewed by management to ensure the changes are appropriate. As markets and products evolve and the pricing for certain products becomes more transparent, the Company will continue to refine its valuation methodologies. The methodology utilized by the Company for the periods presented is unchanged. The methods used to produce a fair value calculation may not be indicative of net realizable value or reflective of future fair values. Furthermore, the Company believes its valuation methods are appropriate and consistent with other market participants. Using different methodologies, or assumptions, to determine the fair value of certain financial instruments could result in a different estimate of fair value at the reporting date. The Company uses inputs that are current as of the measurement date, which may include periods of market dislocation, during which price transparency may be reduced.

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During times of market dislocation, the observability of prices and inputs can be difficult for certain investments. If third party pricing services are unable to provide a price for an asset, or if the price provided by them is deemed unreliable by the Company, then the asset will be valued at its fair value as determined by the Company without validation to third-party pricing. Illiquid investments typically experience greater price volatility as an active market does not exist. Observability of prices and inputs can vary significantly from period to period and may cause instruments to change classifications within the three level hierarchy.

A description of the methodologies utilized by the Company to estimate the fair value of its financial instruments by instrument class follows:

Agency MBS and Non-Agency RMBS

The Company determines the fair value of all of its investment securities based on discounted cash flows utilizing an internal pricing model that incorporates factors such as coupon, prepayment speeds, loan size, collateral composition, borrower characteristics, expected interest rates, life caps, periodic caps, reset dates, collateral seasoning, delinquency, expected losses, expected default severity, credit enhancement, and other pertinent factors. To corroborate that the estimates of fair values generated by these internal models are reflective of current market prices, the Company compares the fair values generated by the model to non-binding independent prices provided by two independent third party pricing services. For certain highly liquid asset classes, such as Agency fixed-rate pass-through bonds, the Company’s valuations are also compared to quoted prices for To-Be-Announced (“TBA”) securities.

Each quarter the Company develops thresholds which are determined utilizing current bid/ask spreads, liquidity, price volatility and other factors as appropriate. If internally developed model prices differ from the independent prices provided by greater than a market derived predetermined threshold for the period, the Company highlights these differences for further review, both internally and with the third party pricing service. The Company obtains the inputs used by the third party pricing services and compares them to the Company’s inputs. The Company updates its own inputs if the Company determines the third party pricing inputs more accurately reflect the current market environment. If the Company believes that its internally developed inputs more accurately reflect the current market environment, it will request that the third party pricing service review market factors that may not have been considered by the third party pricing service and provide updated prices. The Company reconciles and resolves all pricing differences in excess of the predetermined thresholds before a final price is established. AtJune 30, 2018, seventeen investment holdings with an internally developed fair value of $197 million had a difference between the model generated prices and third party prices provided in excess of the derived predetermined threshold for the period. The internally developed prices were $18 million lower than the third party prices provided of $215 million. After review and discussion, the Company affirmed and valued the investments at the lower internally developed prices. No other differences were noted at June 30, 2018 in excess of the derived predetermined threshold for the period. At December 31, 2017, four investment holdings with an internally developed fair value of $25 million had a difference between the model generated prices and third party prices provided in excess of the derived predetermined threshold for the period. The internally developed prices were $3 million lower than the third party prices provided of $28 million. After review and discussion, the Company affirmed and valued the investments at the lower internally developed prices.

The Company’s estimate of prepayment, default and severity curves all involve judgment and assumptions that are deemed to be significant to the fair value measurement process, which renders the resulting Non-Agency RMBS fair value estimates Level 3 inputs in the fair value hierarchy. As the fair values of Agency MBS are more observable, these investments are classified as level 2 in the fair value hierarchy.

Loans Held for Investment

Loans consisting of seasoned subprime residential mortgage loans:

The Company estimates the fair value of its Loans held for investment consisting of seasoned subprime residential mortgage loans on a loan by loan basis using an internally developed model which compares the loan held by the Company with a loan currently offered in the market. The loan price is adjusted in the model by considering the loan factors which would impact the value of a loan. These loan factors include: loan coupon as compared to coupon currently available in the market, FICO, loan-to-value ratios, delinquency history, owner occupancy, and property type, among other factors. A baseline is developed for each significant loan factor and adjusts the price up or down depending on how that factor for each specific loan compares to the baseline rate. Generally, the most significant impact on loan value is the loan interest rate as compared to interest rates currently available in the market and delinquency history. These two factors are based on relevant observable inputs.

The Company also monitors market activity to identify trades which may be used to compare internally developed prices; however, as the portfolio of loans held at fair value is a seasoned subprime pool of mortgage loans, comparable loan pools are

21

not common or directly comparable. There are limited transactions in the market place to develop a comprehensive direct range of values.

The Company reviews the fair values generated by the model to determine whether prices are reflective of the current market by corroborating its estimates of fair value by comparing the results to non-binding independent prices provided by two independent third party pricing services for the loan portfolio. Each quarter the Company develops thresholds which are determined utilizing the securitization market.

If the internally developed fair values of the loan pools differ from the independent prices provided by greater than a predetermined threshold for the period, the Company highlights these differences for further review, both internally and with the third party pricing service. The Company obtains certain inputs used by the third party pricing services and evaluates them for reasonableness. The Company updates its own model if the Company determines the third party pricing inputs more accurately reflect the current market environment or observed information from the third party vendors. If the Company believes that its internally developed inputs more accurately reflect the current market environment, it will request that the third party pricing service review market factors that may not have been considered by the third party pricing service. The Company reconciles and resolves all pricing differences in excess of the predetermined thresholds before a final price is established.

At June 30, 2018, the internally developed fair values of loan pools of $1.19 billion had a difference between the model generated prices and third party prices provided in excess of the derived predetermined threshold for the period. The internally developed prices were $39 million higher than the third party prices provided of $1.15 billion. After review and discussion, the Company affirmed and valued the investments at the lower internally developed prices. At December 31, 2017, there were no pricing differences in excess of the predetermined thresholds between the model generated prices and third party prices.

The Company’s estimates of fair value of Loans held for investment involve management judgment and assumptions that are deemed to be significant to the fair value measurement process, which renders the resulting fair value estimates level 3 inputs in the fair value hierarchy.

Loans collateralized by jumbo, prime residential mortgages:

The loans collateralized by jumbo, prime residential mortgages are carried at fair value. The loans are held as part of a consolidated Collateralized Financing Entity (“CFE”). A CFE is a variable interest entity that holds financial assets, issues beneficial interests in those assets and has no more than nominal equity and the beneficial interests have contractual recourse only to the related assets of the CFE. Accounting guidance for CFEs allow the Company to elect to measure the CFE’s financial assets using the fair value of the CFE’s financial liabilities as the fair values of the financial liabilities of the CFE are more observable. Therefore, the fair value of the loans collateralized by jumbo, prime residential mortgages is based on the fair value of the financial liabilities. See discussion of the fair value of Securitized Debt, collateralized by Loans Held for Investment at fair value below.

As the more observable financial liabilities are considered level 3 in the fair value hierarchy, the Loans collateralized by jumbo, prime residential mortgages are also level 3 in the fair value hierarchy.

Securitized Debt, collateralized by Non-Agency RMBS

The Company carries securitized debt, collateralized by Non-Agency RMBS at the principal balance outstanding plus unamortized premiums, less unaccreted discounts recorded in connection with the financing of the loans or RMBS with third parties. The Company estimates the fair value of securitized debt, collateralized by Non-Agency RMBS by estimating the future cash flows associated with the underlying assets collateralizing the secured debt outstanding. The Company models the fair value of each underlying asset by considering, among other items, the structure of the underlying security, coupon, servicer, delinquency, actual and expected defaults, actual and expected default severities, reset indices, and prepayment speeds in conjunction with market research for similar collateral performance and management’s expectations of general economic conditions in the sector and other economic factors. This process, including the review process, is consistent with the process used for Agency MBS and Non-Agency RMBS using internal models. For further discussion of the valuation process and benchmarking process, see Agency MBS and Non-Agency RMBS discussion herein.

The Company’s estimates of fair value of securitized debt, collateralized by Non-Agency RMBS involve management’s judgment and assumptions that are deemed to be significant to the fair value measurement process, which renders the resulting fair value estimates level 3 inputs in the fair value hierarchy.

Securitized Debt, collateralized by Loans Held for Investment

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The process for determining the fair value of securitized debt, collateralized by loans held for investment is based on discounted cash flows utilizing an internal pricing model that incorporates factors such as coupon, prepayment speeds, loan size, collateral composition, borrower characteristics, expected interest rates, life caps, periodic caps, reset dates, collateral seasoning, expected losses, expected default severity, credit enhancement, and other pertinent factors. This process, including the review process, is consistent with the process used for Agency MBS and Non-Agency RMBS using internal models. For further discussion of the valuation process and benchmarking process, see Agency MBS and Non-Agency RMBS discussion herein.

The Company’s estimates of fair value of securitized debt, collateralized by loans held for investment involve management’s judgment and assumptions that are deemed to be significant to the fair value measurement process, which renders the resulting fair value estimates level 3 inputs in the fair value hierarchy.

Fair value option

The table below shows the unpaid principal, fair value and impact of change in fair value on each of the financial instruments carried with fair value option as of June 30, 2018 and December 31, 2017 respectively:

	June 30, 2018
	(dollars in thousands)
	Unpaid Principal/ Notional	Fair Value		Quarter to Date Gain/(Loss) on Change in Fair Value			Year to Date Gain/(Loss) on Change in Fair Value
Assets:
Non-agency RMBS
Subordinated	N/A	$	12,918	$	(42	)	$	(440	)
Senior, interest-only	5,282,885	252,324		3,464			1,511
Subordinated, interest-only	206,557	10,482		335			746
Agency MBS
Residential Pass-through	3,010,558	3,075,138		3,081			(9,270		)
Commercial Pass-through	1,004,493	984,591		(12,534		)	(32,948		)
Interest-only	3,010,512	102,901		46			(127		)
Loans held for investment, at fair value	13,083,186	13,246,521		(20,082		)	21,513
Liabilities:
Securitized debt at fair value, collateralized by loans held for investment	9,388,837	9,340,368		7,369			15,118

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	December 31, 2017
	(dollars in thousands)
	Unpaid Principal/ Notional	Fair Value		Quarter to Date Gain/(Loss) on Change in Fair Value			Year to Date Gain/(Loss) on Change in Fair Value
Assets:
Non-agency RMBS
Subordinated	N/A	$	13,993	$	(545	)	$	1,246
Senior, interest-only	4,862,461	210,850		3,156			(13,290		)
Subordinated, interest-only	201,378	7,826		1,836			2,311
Agency MBS
Residential Pass-through	577,522	602,829		(2,359		)	(4,816		)
Commercial Pass-through	564,379	570,105		(546		)	(2,398		)
Interest-only	3,021,840	104,367		(367		)	465
Loans held for investment, at fair value	13,525,820	13,678,263		(65,643		)	206,181
Liabilities:
Securitized debt at fair value, collateralized by loans held for investment	9,395,854	9,388,657		16,831			(78,289		)

Derivatives

Interest Rate Swaps and Swaptions

The Company uses clearing exchange market prices to determine the fair value of its exchange cleared interest rate swaps. For bi-lateral swaps, the Company determines the fair value based on the net present value of expected future cash flows on the swap. The Company uses option pricing model to determine the fair value of its swaptions. For bi-lateral swaps and swaptions, the Company compares its own estimate of fair value with counterparty prices to evaluate for reasonableness. Both the clearing exchange and counter-party pricing quotes, incorporate common market pricing methods, including a spread measurement to the Treasury yield curve or interest rate swap curve as well as underlying characteristics of the particular contract. Interest rate swaps and swaptions are modeled by the Company by incorporating such factors as the term to maturity, swap curve, overnight index swap rates, and the payment rates on the fixed portion of the interest rate swaps. The Company has classified the characteristics used to determine the fair value of interest rate swaps and swaptions as Level 2 inputs in the fair value hierarchy.

Treasury Futures

The fair value of Treasury futures is determined by quoted market prices in an active market. The Company has classified the characteristics used to determine the fair value of Treasury futures as Level 1 inputs in the fair value hierarchy.

Repurchase Agreements

Repurchase agreements are collateralized financing transactions utilized by the Company to acquire investment securities. Due to the short term nature of these financial instruments, the Company estimates the fair value of these repurchase agreements using the contractual obligation plus accrued interest payable.

Short-term Financial Instruments

The carrying value of cash and cash equivalents, accrued interest receivable, dividends payable, payable for investments purchased and accrued interest payable are considered to be a reasonable estimate of fair value due to the short term nature and low credit risk of these short-term financial instruments.

The Company’s financial assets and liabilities carried at fair value on a recurring basis, including the level in the fair value hierarchy, at June 30, 2018 and December 31, 2017 are presented below.

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	June 30, 2018
	(dollars in thousands)
	Level 1		Level 2		Level 3		Counterparty and Cash Collateral, netting			Total
Assets:
Non-Agency RMBS, at fair value	$	—	$	—	$	2,593,422	$	—		$	2,593,422
Agency MBS, at fair value	—		6,989,329		—		—			6,989,329
Loans held for investment, at fair value	—		—		13,246,521		—			13,246,521
Derivatives	2,949		168,532		—		(42,140		)	129,341
Liabilities:
Securitized debt at fair value, collateralized by loans held for investment	—		—		9,340,368		—			9,340,368
Derivatives	—		16,730		—		(16,730		)	—

	December 31, 2017
	(dollars in thousands)
	Level 1		Level 2		Level 3	Counterparty and Cash Collateral, netting			Total
Assets:
Non-Agency RMBS, at fair value	$	—	$	—	2,851,316	$	—		$	2,851,316
Agency MBS, at fair value	—		4,364,828		—	—			4,364,828
Loans held for investment, at fair value	—		—		13,678,263	—			13,678,263
Derivatives	3,553		46,978		—	(1,617		)	48,914
Liabilities:
Securitized debt at fair value, collateralized by loans held for investment	—		—		9,388,657	—			9,388,657
Derivatives	—		1,937		—	(1,617		)	320

The table below provides a summary of the changes in the fair value of securities classified as Level 3 at June 30, 2018 and December 31, 2017.

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Fair Value Reconciliation, Level 3
	For the Six Months Ended, June 30, 2018
	(dollars in thousands)
	Non-Agency RMBS			Loans held for investment			Securitized Debt
Beginning balance Level 3 assets	$	2,851,316		$	13,678,263		$	9,388,657
Transfers in to Level 3 assets	—			—			—
Transfers out of Level 3 assets	—			—			—
Purchases of assets/ issuance of debt	92,017			924,283			1,170,009
Principal payments	(327,923		)	(944,146		)	(894,694		)
Sales and Settlements	(32,379		)	(389,798		)	(293,460		)
Accretion (amortization) of purchase discounts	53,895			(43,594		)	(4,969		)
Gains (losses) included in net income
Other than temporary credit impairment losses	(10,289		)	—			—
Realized gains (losses) on sales and settlements	2,244			—			(10,057		)
Net unrealized gains (losses) included in income	1,815			21,513			(15,118		)
Gains (losses) included in other comprehensive income
Total unrealized gains (losses) for the period	(37,274		)	—			—
Ending balance Level 3 assets	$	2,593,422		$	13,246,521		$	9,340,368

Fair Value Reconciliation, Level 3
	For the Year Ended, December 31, 2017
	(dollars in thousands)
	Non-Agency RMBS			Loans held for investment			Securitized Debt
Beginning balance Level 3 assets	$	3,330,063		$	8,753,653		$	6,941,097
Transfers in to Level 3 assets	6,112			—			—
Transfers out of Level 3 assets	—			—			—
Purchases of assets/ issuance of debt	78,400			6,539,765			5,173,430
Principal payments	(568,339		)	(1,788,409		)	(1,787,368		)
Sales and Settlements	(68,162		)	2,876			(1,056,765		)
Accretion (amortization) of purchase discounts	120,119			(35,803		)	4,701
Gains (losses) included in net income
Other than temporary credit impairment losses	(59,881		)	—			—
Realized gains (losses) on sales and settlements	12,031			—			35,273
Net unrealized gains (losses) included in income	(9,733		)	206,181			78,289
Gains (losses) included in other comprehensive income
Total unrealized gains (losses) for the period	10,706			—			—
Ending balance Level 3 assets	$	2,851,316		$	13,678,263		$	9,388,657

There were no transfers in or out from Level 3, during the quarter ended June 30, 2018. There were $6 million of IOs transferred to Level 3 and no transfers out from Level 3 for the year ended December 31, 2017. The primary cause of the changes in fair value of the loans and the securitized debt are due to market demand for these instruments and changes in credit risk of the portfolio.

The significant unobservable inputs used in the fair value measurement of the Company’s Non-Agency RMBS and securitized debt are the weighted average discount rates, constant prepayment speed (“CPR”), cumulative default rate, and the loss severity.

Constant Prepayment Rates

For securitized debt carried at fair value issued at a premium, as prepayment speeds increase, the amount of interest expense the Company recognizes decreases as the issued premium on the debt amortizes faster than expected. Conversely, decreases in prepayment speeds result in increased expense and can extend the period over which the Company amortizes the premium.

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For debt issued at a discount, as prepayment speeds increase, the amount of interest the Company expenses increases from the acceleration of the accretion of the discount into interest expense. Conversely, decreases in prepayment speeds result in decreased expense as the accretion of the discount into interest expense occurs over a longer period.

Constant Default Rates

Constant default rates represent an annualized rate of default on a group of mortgages. The constant default rate (“CDR”) represents the percentage of outstanding principal balances in the pool that are in default, which typically equates to the home being past 60-day and 90-day notices and in the foreclosure process. When default rates increase, expected cash flows on the underlying collateral decreases. When default rates decrease, expected cash flows on the underlying collateral increases.

Loss Severity

Loss severity rates reflect the amount of loss expected from a foreclosure and liquidation of the underlying collateral in the mortgage loan pool. When a mortgage loan is foreclosed the collateral is sold and the resulting proceeds are used to settle the outstanding obligation. In many circumstances, the proceeds from the sale do not fully repay the outstanding obligation. In these cases, a loss is incurred by the lender. Loss severity is used to predict how costly future losses are likely to be. An increase in loss severity results in a decrease in expected future cash flows. A decrease in loss severity results in an increase in expected future cash flows.

Discount Rate

The discount rate refers to the interest rate used in the discounted cash flow analysis to determine the present value of future cash flows. The discount rate takes into account not just the time value of money, but also the risk or uncertainty of future cash flows. An increased uncertainty of future cash flows results in a higher discount rate. The discount rate used to calculate the present value of the expected future cash flows is based on the discount rate implicit in the security as of the last measurement date. As discount rates move up, the discounted cash flows are reduced.

Sensitivity of Significant Inputs – Non-Agency RMBS and securitized debt, collateralized by loans held for investment

Prepayment speeds, as reflected by the CPR, vary according to interest rates, the type of financial instrument, conditions in financial markets, and other factors, none of which can be predicted with any certainty. In general, when interest rates rise, it is relatively less attractive for borrowers to refinance their mortgage loans, and as a result, prepayment speeds tend to decrease. When interest rates fall, prepayment speeds tend to increase. For RMBS investments purchased at a premium, as prepayment speeds increase, the amount of income the Company earns decreases as the purchase premium on the bonds amortizes faster than expected. Conversely, decreases in prepayment speeds result in increased income and can extend the period over which the Company amortizes the purchase premium. For RMBS investments purchased at a discount, as prepayment speeds increase, the amount of income the Company earns increases from the acceleration of the accretion of the discount into interest income. Conversely, decreases in prepayment speeds result in decreased income as the accretion of the purchase discount into interest income occurs over a longer period.

A summary of the significant inputs used to estimate the fair value of Non-Agency RMBS held for investment at fair value as of June 30, 2018 and December 31, 2017 follows:

	June 30, 2018				December 31, 2017
	Significant Inputs				Significant Inputs
	Weighted Average Discount Rate	CPR	CDR	Loss Severity	Weighted Average Discount Rate	CPR	CDR	Loss Severity
		Range				Range
Non-Agency RMBS
Senior	4.6%	2% -22%	0% -52%	35% -95%	4.4%	1% -45%	0% -55%	35% -89%
Senior interest-only	10.0%	4% -31%	0% -59%	35% -95%	11.2%	3% -25%	0% -50%	35% -95%
Subordinated	5.4%	1% -23%	0% -45%	10% -71%	5.8%	1% -20%	0% -33%	35% -69%
Subordinated interest-only	10.4%	4% -25%	0% -15%	35% -58%	12.0%	6% -22%	0% -9%	35% -63%

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A summary of the significant inputs used to estimate the fair value of securitized debt at fair value, collateralized by loans held for investment, as of June 30, 2018 and December 31, 2017 follows:

		June 30, 2018				December 31, 2017
		Significant Inputs				Significant Inputs
	Weighted Average Discount Rate	CPR Range	CDR Range	Loss Severity Range	Weighted Average Discount Rate	CPR Range	CDR Range	Loss Severity Range
Securitized debt at fair value, collateralized by loans held for investment	4.4%	6% - 15%	0% - 8%	35% - 60%	4.1%	6% - 15%	0% - 6%	35% - 60%

All of the significant inputs listed have some degree of market observability, based on the Company’s knowledge of the market, information available to market participants, and use of common market data sources. Collateral default and loss severity projections are in the form of “curves” that are updated quarterly to reflect the Company’s collateral cash flow projections. Methods used to develop these projections conform to industry conventions. The Company uses assumptions it considers its best estimate of future cash flows for each security.

Constant Prepayment Rates

The prepayment speed specifies the percentage of the collateral balance that is expected to prepay at each point in the future. The prepayment speed is based on factors such as collateral FICO score, loan-to-value ratio, debt-to-income ratio, and vintage on a loan level basis and is scaled up or down to reflect recent collateral-specific prepayment experience as obtained from remittance reports and market data services.

Constant Default Rates

Default vectors are determined from the current “pipeline” of loans that are more than 30 days delinquent, in foreclosure, bankruptcy, or are REO. These delinquent loans determine the first 30 months of the default curve. Beyond month 30, the default curve transitions to a value that is reflective of a portion of the current delinquency pipeline.

Loss Severity

The curve generated to reflect the Company’s expected loss severity is based on collateral-specific experience with consideration given to other mitigating collateral characteristics. Characteristics such as seasoning are taken into consideration because severities tend to initially increase on newly originated securities, before beginning to decline as the collateral ages and eventually stabilize. Collateral characteristics such as loan size, loan-to-value, and geographic location of collateral also effect loss severity.

Discount Rate

The discount rates applied to the expected cash flows to determine fair value are derived from a range of observable prices on securities backed by similar collateral. As the market becomes more or less liquid, the availability of these observable inputs will change.

Sensitivity of Significant Inputs – Loans held for investment

The Loans held for investment are comprised primarily of loans collateralized by seasoned subprime residential mortgages. Additionally, it includes non-conforming, single family, owner occupied, jumbo, prime residential mortgages. The significant unobservable inputs used to estimate the fair value of the Loans held for investment collateralized by seasoned subprime residential mortgage loans, as of June 30, 2018 and December 31, 2017 include coupon, FICO score at origination, loan-to-value ratios (LTV), owner occupancy status, and property type. A summary of the significant inputs used to estimate the fair value of Loans held for investment collateralized by seasoned subprime mortgages at fair value as of June 30, 2018 and December 31, 2017 follows:

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	June 30, 2018	December 31, 2017
Factor:
Coupon
Base Rate	5.0%	4.8%
Actual	6.9%	6.9%
FICO
Base Rate	636	636
Actual	627	627
Loan-to-value (LTV)
Base Rate	88%	89%
Actual	88%	88%
Loan Characteristics:
Occupancy
Owner Occupied	93%	95%
Investor	1%	1%
Secondary	6%	4%
Property Type
Single family	87%	87%
Manufactured housing	4%	4%
Multi-family/mixed use/other	9%	9%

The loan factors are generally not observable for the individual loans and the base rates developed by the Company’s internal model are subjective and change as market conditions change. The impact of the loan coupon on the value of the loan is dependent on whether the loan is clean or reperforming. A clean loan, with no history of delinquent payments and a relatively high loan interest rate would result in a higher overall value than a reperforming loan which has a history of delinquency. Similarly, a higher FICO score and a lower LTV ratio results in increases in the fair market value of the loan and a lower FICO score and a higher LTV ratio results in a lower value.

Property types also affect the overall loan values. Property types include single family, manufactured housing and multi-family/mixed use and other types of properties. Single family homes represent properties which house one to four family units. Manufactured homes include mobile homes and modular homes. Loan value for properties that are investor or secondary homes have a reduced value as compared to the baseline loan value. Additionally, single family homes will result in an increase to the loan value where manufactured and multi-family/mixed use and other properties will result in a decrease to the loan value, as compared to the baseline.

Financial instruments not carried at fair value

The following table presents the carrying value and fair value, as described above, of the Company’s financial instruments not carried at fair value on a recurring basis at June 30, 2018 and December 31, 2017.

	June 30, 2018
	(dollars in thousands)
	Level in Fair Value Hierarchy	Carrying Amount	Fair Value
Repurchase agreements	2	9,127,048	9,151,213
Securitized debt, collateralized by Non-Agency RMBS	3	179,742	161,707

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	December 31, 2017
	(dollars in thousands)
	Level in Fair Value Hierarchy	Carrying Amount	Fair Value
Repurchase agreements	2	7,250,452	7,269,193
Securitized debt, collateralized by Non-Agency RMBS	3	205,780	192,259

6. Repurchase Agreements

The interest rates of the Company’s repurchase agreements are generally indexed to the one-month, three-month and twelve-month LIBOR rates and re-price accordingly. The repurchase agreements outstanding, weighted average borrowing rates, weighted average remaining maturities, average daily balances and the fair value of collateral pledged as of June 30, 2018 and December 31, 2017 were:

	June 30, 2018			December 31, 2017
Repurchase agreements outstanding secured by:
Agency MBS (in thousands)	$	5,569,418		$	3,202,056
Non-agency MBS and Loans held for investment (in thousands)	3,557,630			4,048,396
Total:	$	9,127,048		$	7,250,452
Average balance of Repurchase agreements secured by:
Agency MBS (in thousands)	$	3,907,750		$	3,120,474
Non-agency MBS and Loans held for investment (in thousands)	3,893,703			3,203,700
Total:	$	7,801,453		$	6,324,174
Average borrowing rate of Repurchase agreements secured by:
Agency MBS	2.09		%	1.47		%
Non-agency MBS and Loans held for investment	4.02		%	3.41		%
Average remaining maturity of Repurchase agreements secured by:
Agency MBS	24 Days			28 Days
Non-agency MBS and Loans held for investment	98 Days			93 Days
Average original maturity of Repurchase agreements secured by:
Agency MBS	66 Days			87 Days
Non-agency MBS and Loans held for investment	124 Days			123 Days
MBS pledged as collateral at fair value on Repurchase agreements:
Agency MBS (in thousands)	$	5,954,878		$	3,450,123
Non-agency MBS and Loans held for investment (in thousands)	4,671,505			5,338,557
Total:	$	10,626,383		$	8,788,680

At June 30, 2018 and December 31, 2017, the repurchase agreements collateralized by MBS and Loans held for investment had the following remaining maturities.

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	June 30, 2018		December 31, 2017
	(dollars in thousands)
Overnight	$	—	$	—
1 to 29 days	4,757,404		4,745,342
30 to 59 days	1,915,294		1,206,769
60 to 89 days	1,460,284		592,865
90 to 119 days	90,183		—
Greater than or equal to 120 days	903,883		705,476
Total	$	9,127,048	$	7,250,452

At June 30, 2018, the Company had an amount at risk with Credit Suisse of 11% of its equity related to the collateral posted on repurchase agreements. As of June 30, 2018 the weighted average remaining maturity of the repurchase agreements with Credit Suisse was 64 days and the amount at risk was $410 million. At December 31, 2017, the Company had an amount at risk with Credit Suisse of 12% of its equity related to the collateral posted on repurchase agreements. As of December 31, 2017, the weighted average maturity of the repurchase agreements with Credit Suisse was 25 days and the amount at risk was $451 million. There were no other amounts at risk with any other counterparties greater than 10% of the Company’s equity as of June 30, 2018 and December 31, 2017.

7. Securitized Debt

All of the Company’s securitized debt is collateralized by residential mortgage loans or Non-Agency RMBS. For financial reporting purposes, the Company’s securitized debt is accounted for as secured borrowings. Thus, the residential mortgage loans or RMBS held as collateral are recorded in the assets of the Company as Loans held for investment or Non-Agency RMBS and the securitized debt is recorded as a non-recourse liability in the accompanying Consolidated Statements of Financial Condition.

Securitized Debt Collateralized by Non-Agency RMBS

At June 30, 2018 and December 31, 2017 the Company’s securitized debt collateralized by Non-Agency RMBS is carried at amortized cost and had a principal balance of $194 million and $219 million, respectively. At June 30, 2018 and December 31, 2017, the debt carried a weighted average coupon equal to 6.3% and 6.2%, respectively. The debt matures between the years 2035 and 2046. None of the Company’s securitized debt collateralized by Non-Agency RMBS is callable.

There were no securitized debt collateralized by Non-Agency RMBS acquisitions during the quarters ended June 30, 2018 and 2017.

The following table presents the estimated principal repayment schedule of the securitized debt collateralized by Non-Agency RMBS at June 30, 2018 and December 31, 2017, based on expected cash flows of the residential mortgage loans or RMBS, as adjusted for projected losses on the underlying collateral of the debt. All of the securitized debt recorded in the Company’s Consolidated Statements of Financial Condition is non-recourse to the Company.

	June 30, 2018		December 31, 2017
	(dollars in thousands)
Within One Year	$	30,923	$	42,217
One to Three Years	37,753		45,916
Three to Five Years	11,461		16,524
Greater Than Five Years	5,600		4,867
Total	$	85,737	$	109,524

Maturities of the Company’s securitized debt collateralized by Non-Agency RMBS are dependent upon cash flows received from the underlying loans. The estimate of their repayment is based on scheduled principal payments on the underlying loans. This estimate will differ from actual amounts to the extent prepayments or loan losses are experienced. See Note 3 for a more detailed discussion of the securities collateralizing the securitized debt.

Securitized Debt Collateralized by Loans Held for Investment

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At June 30, 2018 and December 31, 2017 the Company’s securitized debt collateralized by loans held for investment had a principal balance of $9.4 billion. At June 30, 2018 and December 31, 2017 the total securitized debt collateralized by loans held for investment carried a weighted average coupon equal to 4.4% and 4.2%, respectively. The debt matures between the years 2023 and 2067.

During the quarter ended June 30, 2018, the Company acquired securitized debt collateralized by loans with an amortized cost balance of $155 million for $154 million. This transaction resulted in a net gain on the extinguishment of debt of $387 thousand, which is reflected in earnings for the quarter ended June 30, 2018. During the six months ended June 30, 2018, the Company acquired securitized debt collateralized by loans with an amortized cost balance of $304 million for $294 million. This transaction resulted in a net gain on the extinguishment of debt of $10 million, which is reflected in earnings for the quarter ended June 30, 2018.

During the quarter ended June 30, 2017, the Company acquired securitized debt collateralized by loans with an amortized cost balance of $197 million for $245 million. This transaction resulted in a net loss on extinguishment of debt of $48 million, which is reflected in earnings for the quarter and six months ended June 30, 2017. As the Company's securitized debt is carried at fair value with changes in fair value reflected in earnings some of this loss was recognized during prior periods.

The following table presents the estimated principal repayment schedule of the securitized debt collateralized by loans held for investment at June 30, 2018 and December 31, 2017, based on expected cash flows of the residential mortgage loans or RMBS, as adjusted for projected losses on the underlying collateral of the debt. All of the securitized debt recorded in the Company’s Consolidated Statements of Financial Condition is non-recourse to the Company.

	June 30, 2018		December 31, 2017
	(dollars in thousands)
Within One Year	$	1,785,710	$	1,819,018
One to Three Years	2,818,626		2,872,572
Three to Five Years	2,110,377		2,140,434
Greater Than Five Years	2,493,804		2,439,872
Total	$	9,208,517	$	9,271,896

Maturities of the Company’s securitized debt collateralized by loans held for investment are dependent upon cash flows received from the underlying loans. The estimate of their repayment is based on scheduled principal payments on the underlying loans. This estimate will differ from actual amounts to the extent prepayments or loan losses are experienced. See Note 4 for a more detailed discussion of the loans collateralizing the securitized debt.

Certain of the securitized debt collateralized by loans held for investment contain call provisions at the option of the Company. The following table presents the par value of the callable debt by year at June 30, 2018. 

June 30, 2018
(dollars in thousands)
Year	Principal
2018	$	560,814
2019	360,602
2020	4,621,456
2021	3,197,192
2022	300,973
2023	142,144
Total	$	9,183,181

8. Consolidated Securitization Vehicles and Other Variable Interest Entities

Since its inception, the Company has utilized VIEs for the purpose of securitizing whole mortgage loans or re-securitizing RMBS and obtaining long-term, non-recourse financing. The Company evaluated its interest in each VIE to determine if it is the primary beneficiary.

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As of June 30, 2018, the Company’s Consolidated Statement of Financial Condition includes assets of consolidated VIEs with a carrying value of $14.5 billion and liabilities with a carrying value of $9.6 billion. As of December 31, 2017, the Company’s Consolidated Statement of Financial Condition includes assets of consolidated VIEs with a carrying value of $15.0 billion of and liabilities with a carrying value of $9.6 billion.

VIEs for Which the Company is the Primary Beneficiary

The retained beneficial interests in VIEs for which the Company is the primary beneficiary are typically the subordinated tranches of these re-securitizations and in some cases the Company may hold interests in additional tranches. The table below reflects the assets and liabilities recorded in the Consolidated Statements of Financial Condition related to the consolidated VIEs as of June 30, 2018 and December 31, 2017.

	June 30, 2018		December 31, 2017
	(dollars in thousands)
Assets:
Non-Agency RMBS, at fair value	$	1,280,378	$	1,579,793
Loans held for investment, at fair value	13,045,302		13,263,338
Accrued interest receivable	75,390		75,489
Other assets	54,708		68,844
Liabilities:
Securitized debt, collateralized by Non-Agency RMBS	$	179,742	$	205,780
Securitized debt at fair value, collateralized by loans held for investment	9,340,368		9,388,657
Accrued interest payable	35,754		33,870
Other liabilities	3,285		3,513

Income, OTTI and expense amounts related to consolidated VIEs recorded in the Consolidated Statements of Operations is presented in the tables below.

	For the Quarters Ended
	June 30, 2018			June 30, 2017
	(dollars in thousands)
Interest income, Assets of consolidated VIEs	$	229,746		$	234,437
Interest expense, Non-recourse liabilities of VIEs	99,507			105,723
Net interest income	$	130,239		$	128,714
Total other-than-temporary impairment losses	$	(351	)	$	(696	)
Portion of loss recognized in other comprehensive income (loss)	(8,561		)	(12,146		)
Net other-than-temporary credit impairment losses	$	(8,912	)	$	(12,842	)
Servicing fees	$	9,722		$	10,890

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	For the Six Months Ended
	June 30, 2018			June 30, 2017
	(dollars in thousands)
Interest income, Assets of consolidated VIEs	$	464,772		$	427,426
Interest expense, Non-recourse liabilities of VIEs	199,121			188,407
Net interest income	$	265,651		$	239,019
Total other-than-temporary impairment losses	$	(351	)	$	(1,109	)
Portion of loss recognized in other comprehensive income (loss)	(8,561		)	(25,613		)
Net other-than-temporary credit impairment losses	$	(8,912	)	$	(26,722	)
Servicing fees	$	20,133		$	20,478

VIEs for Which the Company is Not the Primary Beneficiary

The Company is not required to consolidate VIEs in which it has concluded it does not have a controlling financial interest, and thus is not the primary beneficiary. In such cases, the Company does not have both the power to direct the entities’ most significant activities and the obligation to absorb losses or right to receive benefits that could potentially be significant to the VIEs. The Company’s investments in these unconsolidated VIEs are carried in Non-Agency RMBS on the Consolidated Statements of Financial Condition and include senior and subordinated bonds issued by the VIEs. The fair value of the Company’s investments in each unconsolidated VIEs at June 30, 2018, ranged from less than $1 million to $49 million, with an aggregate amount of $1.3 billion. The fair value of the Company’s investments in each unconsolidated VIEs at December 31, 2017, ranged from less than $1 million to $52 million, with an aggregate amount of $1.3 billion. The Company’s maximum exposure to loss from these unconsolidated VIEs was $1.2 billion at June 30, 2018 and December 31, 2017. The maximum exposure to loss was determined as the amortized cost of the unconsolidated VIE, which represents the purchase price of the investment adjusted by any unamortized premiums or discounts as of the reporting date.

9. Derivative Instruments

In connection with the Company’s interest rate risk management strategy, the Company economically hedges a portion of its interest rate risk by entering into derivative financial instrument contracts in the form of interest rate swaps, swaptions, and Treasury futures. The Company’s swaps are used to lock in a fixed rate related to a portion of its current and anticipated payments on its repurchase agreements. The Company typically agrees to pay a fixed rate of interest (“pay rate”) in exchange for the right to receive a floating rate of interest (“receive rate”) over a specified period of time. Treasury futures are derivatives which track the prices of specific Treasury securities and are traded on an active exchange. It is generally the Company’s policy to close out any Treasury futures positions prior to taking delivery of the underlying security. The Company uses Treasury futures to lock in a fixed rate related to a portion of its current and anticipated payments on its repurchase agreements.

The use of derivatives creates exposure to credit risk relating to potential losses that could be recognized if the counterparties to these instruments fail to perform their obligations under the contracts. In the event of a default by the counterparty, the Company could have difficulty obtaining its RMBS or cash pledged as collateral for these derivative instruments. The Company periodically monitors the credit profiles of its counterparties to determine if it is exposed to counterparty credit risk. See Note 14 for further discussion of counterparty credit risk.

The table below summarizes the location and fair value of the derivatives reported in the Consolidated Statements of Financial Condition after counterparty netting and posting of cash collateral as of June 30, 2018 and December 31, 2017.

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			June 30, 2018
			Derivative Assets			Derivative Liabilities
Derivative Instruments	Notional Amount Outstanding		Location on Consolidated Statements of Financial Condition	Net Estimated Fair Value/Carrying Value		Location on Consolidated Statements of Financial Condition	Net Estimated Fair Value/Carrying Value
			(dollars in thousands)
Interest Rate Swaps	$	7,692,400	Derivatives, at fair value, net	$	123,975	Derivatives, at fair value, net	$	—
Swaptions	53,000		Derivatives, at fair value, net	2,417		Derivatives, at fair value, net	—
Treasury Futures	619,700		Derivatives, at fair value, net	2,949		Derivatives, at fair value, net	—
Total	$	8,365,100		$	129,341		$	—

			December 31, 2017
			Derivative Assets			Derivative Liabilities
Derivative Instruments	Notional Amount Outstanding		Location on Consolidated Statements of Financial Condition	Net Estimated Fair Value/Carrying Value		Location on Consolidated Statements of Financial Condition	Net Estimated Fair Value/Carrying Value
			(dollars in thousands)
Interest Rate Swaps	$	3,816,400	Derivatives, at fair value, net	$	43,257	Derivatives, at fair value, net	$	—
Swaptions	391,000		Derivatives, at fair value, net	2,105		Derivatives, at fair value, net	(320		)
Treasury Futures	619,700		Derivatives, at fair value, net	3,552		Derivatives, at fair value, net	—
Total	$	4,827,100		$	48,914		$	(320	)

The effect of the Company’s derivatives on the Consolidated Statements of Operations is presented below.

		Net gains (losses) on derivatives for the quarters ended
Derivative Instruments	Location on Consolidated Statements of Operations and Comprehensive Income	June 30, 2018			June 30, 2017
		(dollars in thousands)
Interest Rate Swaps	Net unrealized gains (losses) on derivatives	$	21,165		$	4,377
Interest Rate Swaps	Net realized gains (losses) on derivatives (1)	1,246			(19,629		)
Treasury Futures	Net unrealized gains (losses) on derivatives	5,984			2,179
Treasury Futures	Net realized gains (losses) on derivatives	(2,210		)	(6,914		)
Swaptions	Net unrealized gains (losses) on derivatives	(1,254		)	(754		)
Swaptions	Net realized gains (losses) on derivatives	(429		)	(1,081		)
Total		$	24,502		$	(21,822	)

(1) Includes loss on termination of interest rate swaps of $16 million for the quarter ended June 30, 2017. There were no swaps terminations during the quarter ended June 30, 2018.

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		Net gains (losses) on derivatives for the six months ended
Derivative Instruments	Location on Consolidated Statements of Operations and Comprehensive Income	June 30, 2018			June 30, 2017
		(dollars in thousands)
Interest Rate Swaps	Net unrealized gains (losses) on derivatives	$	106,129		$	10,693
Interest Rate Swaps	Net realized gains (losses) on derivatives (1)	(1,365		)	(23,733		)
Treasury Futures	Net unrealized gains (losses) on derivatives	(604		)	(388		)
Treasury Futures	Net realized gains (losses) on derivatives	14,215			(8,999		)
Swaptions	Net unrealized gains (losses) on derivatives	1,789			393
Swaptions	Net realized gains (losses) on derivatives	(1,157		)	(4,250		)
Total		$	119,007		$	(26,284	)

(1) Includes loss on termination of interest rate swaps of $16 million for the six months ended June 30, 2017. There were no swaps terminations during the six months ended June 30, 2018.

The weighted average pay rate on the Company’s interest rate swaps at June 30, 2018 was 2.35% and the weighted average receive rate was 2.33%. The weighted average pay rate on the Company’s interest rate swaps at December 31, 2017 was 1.93% and the weighted average receive rate was 1.53%. The weighted average maturity on the Company’s interest rate swaps at June 30, 2018 and December 31, 2017 was 6 years and 5 years, respectively.

Certain of the Company’s derivative contracts are subject to International Swaps and Derivatives Association Master Agreements or other similar agreements which may contain provisions that grant counterparties certain rights with respect to the applicable agreement upon the occurrence of certain events such as (i) a decline in stockholders’ equity in excess of specified thresholds or dollar amounts over set periods of time, (ii) the Company’s failure to maintain its REIT status, (iii) the Company’s failure to comply with limits on the amount of leverage, and (iv) the Company’s stock being delisted from the New York Stock Exchange (NYSE). Upon the occurrence of any one of items (i) through (iv), or another default under the agreement, the counterparty to the applicable agreement has a right to terminate the agreement in accordance with its provisions. Certain of the Company’s interest rate swaps are cleared through a registered commodities exchange. Each of the Company’s ISDAs and clearing exchange agreements contains provisions under which the Company is required to fully collateralize its obligations under the interest rate swap agreements if at any point the fair value of the swap represents a liability greater than the minimum transfer amount contained within the agreements. The Company is also required to post initial collateral upon execution of certain of its swap transactions. If the Company breaches any of these provisions, it will be required to settle its obligations under the agreements at their termination values, which approximates fair value. The Company uses clearing exchange market prices to determine the fair value of its interest rate swaps. The aggregate fair value of all derivative instruments with credit-risk-related contingent features that are in a net asset position at June 30, 2018 is approximately $143 million including accrued interest, which represents the maximum amount the Company would receive upon termination, which is fully collateralized.

10. Capital Stock

Preferred Stock

The Company declared dividends to Series A preferred stockholders of $3 million and $6 million, or $0.50 and $1.00, respectively, per preferred share during the quarter and six months ended June 30, 2018 and 2017, respectively.

The Company declared dividends to Series B preferred stockholders of $7 million and $13 million, or $0.50 and $1.00 per preferred share, respectively, during the quarter and six months ended June 30, 2018.

The Company declared dividends to Series B preferred stockholders of $7 million and $9 million, or $0.50 and $0.68, respectively, per preferred share during the quarter and six months ended June 30, 2017, respectively.

Common Stock

In February 2018, our Board of Directors reauthorized $100 million under our share repurchase program (the “Repurchase Program”). Such authorization does not have an expiration date and, at present, there is no intention to modify or otherwise rescind such authorization. Shares of our common stock may be purchased in the open market, including through block purchases, through privately negotiated transactions, or pursuant to any trading plan that may be adopted in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended. The timing, manner, price and amount of any repurchases

36

will be determined at our discretion and the program may be suspended, terminated or modified at any time for any reason. Among other factors, the Company intends to only consider repurchasing shares of our common stock when the purchase price is less than the last publicly reported book value per common share. In addition, the Company does not intend to repurchase any shares from directors, officers or other affiliates. The program does not obligate the Company to acquire any specific number of shares, and all repurchases will be made in accordance with Rule 10b-18, which sets certain restrictions on the method, timing, price and volume of stock repurchases.

Pursuant to our Repurchase Program, the Company repurchased approximately 883 thousand shares of its common stock at an average price of $16.81 per share for a total of $15 million during the first quarter of 2018. The company did not repurchase any common stock during the quarter ended June 30, 2018.

During the quarter and six months ended June 30, 2018, and 2017, the Company declared dividends to common shareholders of $94 million and $188 million, or $0.50 and $1.00 per share, respectively.

Earnings per share for the quarters and six months ended June 30, 2018 and 2017, respectively, are computed as follows:

	For the Quarter Ended
	June 30, 2018		June 30, 2017
	(dollars in thousands)
Numerator:
Net income available to common shareholders	$	108,708	$	105,617
Effect of dilutive securities:	—		—
Dilutive net income available to common shareholders	$	108,708	$	105,617
Denominator:
Weighted average basic shares	186,994,743		187,779,406
Effect of dilutive securities	427,402		363,145
Weighted average dilutive shares	187,422,145		188,142,551
Net income per average share attributable to common stockholders - Basic	$	0.58	$	0.56
Net income per average share attributable to common stockholders - Diluted	$	0.58	$	0.56

	For the Six Months Ended
	June 30, 2018		June 30, 2017
	(dollars in thousands)
Numerator:
Net income available to common shareholders	$	338,316	$	263,141
Effect of dilutive securities:	—		—
Dilutive net income available to common shareholders	$	338,316	$	263,141
Denominator:
Weighted average basic shares	187,272,469		187,770,626
Effect of dilutive securities	465,974		398,467
Weighted average dilutive shares	187,738,443		188,169,093
Net income per average share attributable to common stockholders - Basic	$	1.81	$	1.40
Net income per average share attributable to common stockholders - Diluted	$	1.80	$	1.40

11. Accumulated Other Comprehensive Income

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The following table presents the changes in the components of Accumulated Other Comprehensive Income (“AOCI”) for the six months ended June 30, 2018 and 2017:

	June 30, 2018
	(dollars in thousands)
	Unrealized gains (losses) on available-for-sale securities, net			Total Accumulated OCI Balance
Balance as of December 31, 2017	$	796,902		$	796,902
OCI before reclassifications	(131,157		)	(131,157		)
Amounts reclassified from AOCI	5,906			5,906
Net current period OCI	(125,251		)	(125,251		)
Balance as of June 30, 2018	$	671,651		$	671,651

	June 30, 2017
	(dollars in thousands)
	Unrealized gains (losses) on available-for-sale securities, net		Total Accumulated OCI Balance
Balance as of December 31, 2016	$	718,106	$	718,106
OCI before reclassifications	37,744		37,744
Amounts reclassified from AOCI	24,433		24,433
Net current period OCI	62,177		62,177
Balance as of June 30, 2017	$	780,283	$	780,283

The following table presents the details of the reclassifications from AOCI for the six months ended June 30, 2018 and 2017:

	June 30, 2018			June 30, 2017
Details about Accumulated OCI Components	Amounts Reclassified from Accumulated OCI			Amounts Reclassified from Accumulated OCI			Affected Line on the Consolidated Statements Of Operations
Unrealized gains and losses on available-for-sale securities
	$	4,383		$	7,777		Net realized gains (losses) on sales of investments
	(10,289		)	(32,210		)	Net other-than-temporary credit impairment losses
	$	(5,906	)	$	(24,433	)	Income before income taxes
	—			—			Income taxes
	$	(5,906	)	$	(24,433	)	Net of tax

12. Equity Compensation, Employment Agreements and other Benefit Plans

In accordance with the terms of the Company’s 2007 Equity Incentive Plan (as amended and restated on December 10, 2015) (the “Incentive Plan”), directors, officers and employees of the Company are eligible to receive restricted stock grants. These awards generally have a restriction period lasting three years. During the vesting period, these shares may not be sold. There were approximately 6 million shares available for future grants under the Incentive Plan as of June 30, 2018.

During the first quarter of 2017, the Compensation Committee of the Board of Directors of the Company approved a Stock Award Deferral Program (the “Deferral Program”). Under the Deferral Program, non-employee directors and certain executive officers can elect to defer payment of certain stock awards made pursuant to the Equity Plan. Deferred awards are treated as deferred stock units and paid at the earlier of separation from service or a date elected by the participant. Payments are generally made in a lump sum or, if elected by the participant, in five annual installments. Deferred awards receive dividend equivalents during the deferral period in the form of additional deferred stock units. Amounts are paid at the end of the deferral period by delivery of shares from the Incentive Plan (plus cash for any fractional deferred stock units), less any applicable tax withholdings. Deferral elections do not alter any vesting requirements applicable to the underlying stock award.

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During the first quarter of 2018 and 2017, the Company granted certain of its employees Restricted Stock Units (“RSU”) awards.  RSU awards are designed to reward certain employees of the Company for services provided over the previous year. Generally, the RSU awards vest equally over a three-year period beginning from the grant date and will fully vest after three years. The RSU awards are valued at the market price of the Company’s common stock on the grant date and the employees must be employed by the Company on the vesting dates to receive the RSU awards. The Company granted 241 thousand and 112 thousand RSU awards during the first quarter of 2018 and 2017, with a grant date fair value of $4 million and $2 million, respectively, which will be recognized as compensation expense on a straight-line basis over the three year vesting period.

During the first quarter of 2018 and 2017, the Company granted certain employees 133 thousand and 144 thousand Performance Share Units (“PSU”) awards, respectively. PSU awards are designed to align compensation with the Company’s future performance. The PSU awards include a three year performance period ending on December 31, 2020 and December 31, 2019, respectively.  The final number of shares that will vest will be between 0% to 150% of the total PSU awards granted based on the stock performance of the Company as compared to an index of comparable financial institutions and will cliff vest at the end of the performance period.  The PSU awards are measured at fair value on the grant date which will be recognized as compensation expense ratably over the three-year vesting period.  Fair value is determined using a Monte Carlo valuation model developed to value the specific features of the PSU awards, including market based conditions. Inputs into the model include the Company’s historical volatility, the peer average historical volatility, and the correlation coefficient of the volatility.  In addition, inputs also included the share price at the beginning of the measurement period and an estimated total shareholder return for both the Company and the peer group of comparable financial institutions.  Based on the model results, the 133 thousand PSU awards granted during 2018 had a grant date value of $2 million that will cliff vest on December 31, 2020. The 144 thousand PSU awards granted during 2017 had a grant date value of $3 million which will cliff vest on December 31, 2019.

The Company recognized stock based compensation expenses of $2 million and $1 million for the quarters ended June 30, 2018 and 2017, respectively. For the six months ended June 30, 2018 and 2017, the stock based compensation expenses were 3 million and $2 million, respectively.

The Company also maintains a qualified 401(k) plan.  The plan is a retirement savings plan that allows eligible employees to contribute a portion of their wages on a tax-deferred basis under Section 401(k) of the Code. Employees may contribute, through payroll deductions, up to $18,500 if under the age of 50 years and an additional $6,000 “catch-up” contribution for employees 50 years or older. The Company matches 100% of the first 6% of the eligible compensation deferred by employee contributions. The employer funds the 401(k) matching contributions in the form of cash, and participants may direct the Company match to an investment of their choice. The benefit of the Company’s contributions vests immediately. Generally, a participating employee is entitled to distributions from the plans upon termination of employment, retirement, death or disability. The 401(k) expense related to the Company’s qualified plan for the quarters ended June 30, 2018 and 2017 was $137 thousand and $103 thousand, respectively. For the six months ended June 30, 2018 and 2017, the 401(k) expense related to the Company's qualified plan was $251 thousand and $215 thousand, respectively.

13. Income Taxes

For the quarter ended June 30, 2018 and year ended December 31, 2017, the Company qualified to be taxed as a REIT under Code Sections 856 through 860. As a REIT, the Company is not subject to federal income tax to the extent that it makes qualifying distributions of taxable income to its stockholders. To maintain qualification as a REIT, the Company must distribute at least 90% of its annual REIT taxable income to its shareholders and meet certain other requirements such as assets it may hold, income it may generate and its shareholder composition. It is generally the Company’s policy to distribute to its shareholders all of the Company’s taxable income.

The state and local tax jurisdictions to which the Company is subject to tax-filing obligations, recognize the Company’s status as a REIT, and therefore, the Company generally does not pay income tax in such jurisdictions. The Company may, however, be subject to certain minimum state and local tax filing fees and its TRSs are subject to federal, state and local taxes. There were no significant income tax expenses for the quarter ended June 30, 2018 and the year ended December 31, 2017. On December 22, 2017, H.R. 1, informally known as the Tax Cuts and Jobs Act (the "TCJA") was enacted. We continue to analyze and monitor the application of the TCJA to our business.

In general, cash dividends declared by the Company will be considered ordinary income to stockholders for income tax purposes. From time to time, a portion of the Company’s dividends may be characterized as capital gains or return of capital distributions.

The Company’s effective tax rate differs from its combined federal, state and city corporate statutory tax rate primarily due to the deduction of dividend distributions required to be paid under Code Section 857(a).

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The Company’s 2016, 2015 and 2014 federal, state and local tax returns remain open for examination.

14. Credit Risk and Interest Rate Risk

The Company’s primary components of market risk are credit risk and interest rate risk. The Company is subject to interest rate risk in connection with its investments in Agency MBS and Non-Agency RMBS, residential mortgage loans, borrowings under repurchase agreements and securitized debt. When the Company assumes interest rate risk, it attempts to minimize interest rate risk through asset selection, hedging and matching the income earned on mortgage assets with the cost of related financing.

The Company attempts to minimize credit risk through due diligence, asset selection and portfolio monitoring. The Company has established a whole loan target market including prime and subprime borrowers, Alt-A documentation, geographic diversification, owner-occupied property, and moderate loan-to-value ratios. These factors are considered to be important indicators of credit risk.

By using derivative instruments and repurchase agreements, the Company is exposed to counterparty credit risk if counterparties to the contracts do not perform as expected. If a counterparty fails to perform on a derivative hedging instrument, the Company’s counterparty credit risk is equal to the amount reported as a derivative asset on its balance sheet to the extent that amount exceeds collateral obtained from the counterparty or, if in a net liability position, the extent to which collateral posted exceeds the liability to the counterparty. The amounts reported as a derivative asset/(liability) are derivative contracts in a gain/(loss) position, and to the extent subject to master netting arrangements, net of derivatives in a loss/(gain) position with the same counterparty and collateral received/(pledged). If the counterparty fails to perform on a repurchase agreement, the Company is exposed to a loss to the extent that the fair value of collateral pledged exceeds the liability to the counterparty. The Company attempts to minimize counterparty credit risk by evaluating and monitoring the counterparty’s credit, executing master netting arrangements and obtaining collateral, and executing contracts and agreements with multiple counterparties to reduce exposure to a single counterparty.

Our repurchase agreements and derivative transactions are governed by underlying agreements that provide for a right of setoff under master netting arrangements, including in the event of default or in the event of bankruptcy of either party to the transactions. The Company presents its assets and liabilities subject to such arrangements on a net basis in our consolidated statements of financial condition. The following table presents information about our liabilities that are subject to such arrangements and can potentially be offset on our consolidated statements of financial condition as of June 30, 2018 and December 31, 2017.

	June 30, 2018
	(dollars in thousands)
	Gross Amounts of Recognized  Assets (Liabilities)			Gross Amounts Offset in the Consolidated Statements of Financial Position			Net Amounts Offset in the Consolidated Statements of Financial Position			Gross Amounts Not Offset with Financial Assets (Liabilities) in the Consolidated Statements of Financial Position
										Financial Instruments		Cash Collateral (Received) Pledged (1)		Net Amount
Repurchase Agreements	$	(9,127,048	)	$	—		$	(9,127,048	)	$	10,626,383	$	—	$	1,499,335
Interest Rate Swaps - Gross Assets	166,115			(42,140		)	123,975			—		16,079		140,054
Interest Rate Swaps - Gross Liabilities	(16,730		)	16,730			—			—		—		—
Treasury Futures - Gross Assets	2,949			—			2,949			—		2,105		5,054
Treasury Futures - Gross Liabilities	—			—			—			—		—		—
Swaptions - Gross Assets	2,417			—			2,417			—		—		2,417
Swaptions - Gross Liabilities	—			—			—			—		—		—
Total Liabilities	$	(8,972,297	)	$	(25,410	)	$	(8,997,707	)	$	10,626,383	$	18,184	$	1,646,860

(1) Included in other assets

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	December 31, 2017
	(dollars in thousands)
	Gross Amounts of Recognized  Assets (Liabilities)			Gross Amounts Offset in the Consolidated Statements of Financial Position			Net Amounts Offset in the Consolidated Statements of Financial Position			Gross Amounts Not Offset with Financial Assets (Liabilities) in the Consolidated Statements of Financial Position
										Financial Instruments		Cash Collateral (Received) Pledged (1)		Net Amount
Repurchase Agreements	$	(7,250,452	)	$	—		$	(7,250,452	)	$	8,788,680	$	1,156	$	1,539,384
Interest Rate Swaps - Gross Assets	44,874			(1,617		)	43,257			—		11,570		54,827
Interest Rate Swaps - Gross Liabilities	(1,617		)	1,617			—			—		—		—
Treasury Futures - Gross Assets	3,552			—			3,552			—		376		3,928
Treasury Futures - Gross Liabilities	—			—			—			—		—		—
Swaptions - Gross Assets	2,105			—			2,105			—		—		2,105
Swaptions - Gross Liabilities	(320		)	—			(320		)	—		—		(320		)
Total Liabilities	$	(7,201,858	)	$	—		$	(7,201,858	)	$	8,788,680	$	13,102	$	1,599,924

(1) Included in other assets

15. Commitments and Contingencies

From time to time, the Company may become involved in various claims and legal actions arising in the ordinary course of business. In connection with certain re-securitization transactions engaged in by the Company, it has the obligation under certain circumstances to repurchase assets from the VIE upon breach of certain representations and warranties.

16. Subsequent Events

None.

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Item 2.Management's Discussion and Analysis of Financial Condition and Results of Operations

The following discussion of the Company's (“we” or “our”) financial condition and results of operations should be read in conjunction with the consolidated financial statements and notes to those statements included in Item 1 of this quarterly report on Form 10-Q.

SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

We make forward-looking statements in this report that are subject to risks and uncertainties. These forward-looking statements include information about possible or assumed future results of our business, financial condition, liquidity, results of operations, plans and objectives. When we use the words ‘‘believe,’’ ‘‘expect,’’ ‘‘anticipate,’’ ‘‘estimate,’’ ‘‘plan,’’ ‘‘continue,’’ ‘‘intend,’’ ‘‘should,’’ ‘‘may,’’ ‘‘would,’’ ‘‘will’’ or similar expressions, we intend to identify forward-looking statements. Statements regarding the following subjects, among others, are forward-looking by their nature:

• our business and investment strategy;

• availability of investment opportunities in real estate-related and other securities;

• our expected investments;

• changes in the value of our investments;

• changes in interest rates and mortgage prepayment rates;

• prepayments of the mortgage and other loans underlying our mortgage-backed securities, or RMBS, or other asset-backed securities, or ABS;

• rates of default, delinquencies or decreased recovery rates on our investments;

• general volatility of the securities markets in which we invest;

• our ability to maintain existing financing arrangements and our ability to obtain future financing arrangements;

• our ability to effect our strategy to securitize residential mortgage loans;

• interest rate mismatches between our investments and our borrowings used to finance such purchases;

• effects of interest rate caps on our adjustable-rate investments;

• the degree to which our hedging strategies may or may not protect us from interest rate volatility;

• the impact of and changes to various government programs;

• impact of and changes in governmental regulations, tax law and rates, accounting guidance, and similar matters;

• market trends in our industry, interest rates, the debt securities markets or the general economy;

• estimates relating to our ability to make distributions to our stockholders in the future;

• our understanding of our competition;

• availability of qualified personnel;

• our ability to maintain our classification as a REIT for federal income tax purposes;

• our ability to maintain our exemption from registration under the Investment Company Act of 1940, as amended, or 1940 Act;

• our expectations regarding materiality or significance; and

• the effectiveness of our disclosure controls and procedures.

The forward-looking statements are based on our beliefs, assumptions and expectations of our future performance, taking into account all information currently available to us. You should not place undue reliance on these forward-looking statements. These beliefs, assumptions and expectations can change as a result of many possible events or factors, not all of which are known to us. Some of these factors are described under the caption ‘‘Risk Factors’’ in our Form 10-K for fiscal year ended December 31, 2017. If a change occurs, our business, financial condition, liquidity and results of operations may vary materially from those expressed in our forward-looking statements. Any forward-looking statement speaks only as of the date on which it is made. New risks and uncertainties arise from time to time, and it is impossible for us to predict those events or how they may affect us. Except as required by law, we are not obligated to, and do not intend to, update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

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Executive Summary

We are a publicly traded real estate investment trust, or REIT, that is primarily engaged in the business of investing directly or indirectly through our subsidiaries, on a leveraged basis, in a diversified portfolio of mortgage assets, including residential mortgage loans, Non-Agency RMBS, Agency CMBS, Agency RMBS, and other real estate related securities. Our principal business objective is to deliver shareholder value through the generation of distributable income and through asset performance linked to residential mortgage credit fundamentals. We selectively invest in residential mortgage assets with a focus on credit analysis, projected prepayment rates, interest rate sensitivity and expected return.

We focus our investment activities primarily on acquiring residential mortgage loans and on acquiring Non-Agency and Agency residential and commercial mortgage-backed securities, or MBS. At June 30, 2018, based on the amortized cost balance of our interest earning assets, approximately 59% of our investment portfolio was residential mortgage loans, 33% of our investment portfolio was Agency MBS and 8% of our investment portfolio was Non-Agency RMBS, respectively. At December 31, 2017, based on the amortized cost balance of our interest earning assets, approximately 56% of our investment portfolio was residential mortgage loans, 28% of our investment portfolio was Agency MBS and 16% of our investment portfolio was Non-Agency RMBS, respectively.

Our investment strategy is intended to take advantage of opportunities in the current interest rate and credit environment. We expect to adjust our strategy to changing market conditions by shifting our asset allocations across these various asset classes as interest rate and credit cycles change over time. We believe that our strategy will enable us to pay dividends, preserve capital and safeguard book value throughout changing market cycles. We expect to take a long-term view of assets and liabilities, and our reported earnings and estimates of the fair value of our investments at the end of a financial reporting period will not significantly impact our objective of providing attractive risk-adjusted returns to our stockholders over the long-term.

We use leverage to increase returns and to finance the acquisition of our assets. Our income is generated primarily by the difference, or net spread, between the income we earn on our assets and the cost of our borrowings. We expect to finance our investments using a variety of financing sources including, when available, securitizations, warehouse facilities, repurchase agreements, structured asset financing and offerings of our securities. We may manage our debt and interest rate risk by utilizing interest rate hedges, such as interest rate swaps, caps, options and futures to reduce the effect of interest rate fluctuations related to our financing sources.

Under the U.S. credit risk retention rules that became effective on December 24, 2015, for transactions which we sponsor we have committed to consolidate the loans and retain a meaningful investment for a minimum of five years. Our credit investments are generally structurally locked out from pre-payments resulting in a high yielding longer duration credit portfolio.

Market Conditions and our Strategy

There are several key factors that impact our financial results, including the interest rate environment and changes in LIBOR rates, U.S. unemployment rates and residential home prices, as well as residential mortgage origination and refinance activity. The interest rate environment is sensitive to actual and anticipated US Federal Reserve actions, availability of adequate and efficient financing sources, rate volatility as well as other market factors. We have operated over the past several years and continue to operate in a volatile interest rate environment.

The second quarter of 2018 was another volatile period for rates. The 10-year U.S. Treasury note rate rose over 35 basis points from March 31, 2018 to the middle of May before reversing course and dropping 33 basis points by the last week of May. Ultimately, the 10-year U.S. Treasury note rate closed the second quarter of 2018 up 13 basis points compared to the end of the first quarter. The short end of the yield curve also moved up with the Federal Reserve increasing the Federal Funds Target rate by 25 basis points in June. The June rate hike was the seventh increase since the Federal Reserve started raising rates in December 2015. The yield curve flattened as the short end of the yield curve moved up faster than the long end of the yield curve. In addition, we have observed the continuation of investors actively pursuing fixed income and loan assets which has increased the price of assets and reduced the yields. At the same time, the costs to finance new assets in the securitization and repo markets have increased as the Federal Funds Target rate has increased.

The S&P 500 Index returned approximately 3.4% in the second quarter of 2018 as equity markets moved higher for most of the quarter, but trended down over the last two weeks of the quarter.  Unemployment levels remained low and home prices continued to appreciate which provided support to the US housing economy.

Our investments in Agencies, Non-Agencies and Loans experienced mark to market losses this quarter, but were largely offset by gains on our interest rate hedges as interest rates continued to rise during the second quarter. We added approximately $2.4 billion of Agency securities during the quarter, which added to interest income.  Financing cost for our asset portfolio also

43

increased as borrowing rates were broadly higher compared to the first quarter and our repurchase balances were higher related to the new Agency MBS securities purchased during the quarter. Given the changes in the portfolio, we were able to maintain an interest rate spread of 2.5%, consistent with the first quarter.

Our book value per common share was $17.01 as of June 30, 2018 down slightly from $17.12 as of March 30, 2018 as losses on certain asset positions were largely offset by gains on interest rate hedges. Given the economic environment, we continue to seek high yielding investment opportunities that will deliver a durable dividend to our shareholders while managing risk and safeguarding book value.

Business Operations

Net Income Summary

The table below presents our net income on a GAAP basis for the quarters and six months ended June 30, 2018 and 2017.

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Net Income
(dollars in thousands, except share and per share data)
	For the Quarters Ended						For the Six Months Ended
	June 30, 2018			June 30, 2017			June 30, 2018			June 30, 2017
Net interest income:
Interest income (1)	$	306,436		$	288,644		$	603,567		$	539,988
Interest expense (2)	161,266			137,955			310,518			248,186
Net interest income	145,170			150,689			293,049			291,802
Other-than-temporary impairments:
Total other-than-temporary impairment losses	(805		)	(749		)	(1,099		)	(3,462		)
Portion of loss recognized in other comprehensive income	(8,326		)	(12,760		)	(9,190		)	(28,748		)
Net other-than-temporary credit impairment losses	(9,131		)	(13,509		)	(10,289		)	(32,210		)
Other investment gains (losses):
Net unrealized gains (losses) on derivatives	25,895			5,802			107,314			10,698
Realized gains (losses) on terminations of interest rate swaps	—			(16,143		)	—			(16,143		)
Net realized gains (losses) on derivatives	(1,393		)	(11,481		)	11,693			(20,839		)
Net gains (losses) on derivatives	24,502			(21,822		)	119,007			(26,284		)
Net unrealized gains (losses) on financial instruments at fair value	(18,364		)	67,762			(3,898		)	140,005
Net realized gains (losses) on sales of investments	2,167			4,541			2,167			9,708
Gains (losses) on extinguishment of debt	387			(48,014		)	10,057			(48,014		)
Total other gains (losses)	8,692			2,467			127,333			75,415
Other expenses:
Compensation and benefits	8,689			7,671			17,100			15,227
General and administrative expenses	5,860			4,585			11,349			8,625
Servicing fees	9,943			10,890			21,277			20,478
Deal expenses	2,095			1,345			3,183			12,698
Total other expenses	26,587			24,491			52,909			57,028
Income (loss) before income taxes	118,144			115,156			357,184			277,979
Income taxes	36			139			68			155
Net income (loss)	$	118,108		$	115,017		$	357,116		$	277,824
Dividend on preferred stock	9,400			9,400			18,800			14,683
Net income (loss) available to common shareholders	$	108,708		$	105,617		$	338,316		$	263,141
Net income (loss) per share available to common shareholders:
Basic	$	0.58		$	0.56		$	1.81		$	1.40
Diluted	$	0.58		$	0.56		$	1.80		$	1.40
Weighted average number of common shares outstanding:
Basic	186,994,743			187,779,406			187,272,469			187,770,626
Diluted	187,422,145			188,142,551			187,738,443			188,169,093
Dividends declared per share of common stock	$	0.50		$	0.50		$	1.00		$	1.00

(1) Includes interest income of consolidated VIEs of $229,746 and $234,437 for the quarters ended June 30, 2018 and 2017, respectively and interest income of consolidated VIEs of $464,772and $427,426 for the six months ended June 30, 2018 and 2017. See Note 8 to consolidated financial statements for further discussion.

(2) Includes interest expense of consolidated VIEs of $99,507 and $105,723 for the quarters ended June 30, 2018 and2017, respectively and interest expense of consolidated VIEs of $199,121 and $188,407 for the six months ended June 30, 2018 and 2017. See Note 8 to consolidated financial statements for further discussion.

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Results of Operations for the Quarters and Six Months Ended June 30, 2018 and 2017.

Our primary source of income is interest income earned on our assets, net of interest expense paid on our financing liabilities.

Our net income available to common shareholders increased by $3 million to $109 million, or $0.58 per average basic common share, for the quarter ended June 30, 2018 as compared to $106 million, or $0.56 per average basic common share, for the quarter ended June 30, 2017. The increase in net income available to common shareholders for the quarter ended June 30, 2018 is primarily due to lower Losses on extinguishment of debt of $48 million and an increase in Net gains on derivatives of $46 million, as compared to the same period of 2017. These increases to net income were offset in part by a decrease in Net unrealized gains on financial instruments at fair value of $86 million, compared to the same period of 2017.

Our net income available to common shareholders increased by $75 million to $338 million, or $1.81 per average basic common share, for the six months ended June 30, 2018 as compared to $263 million, or $1.40 per average basic common share, for the six months ended June 30, 2017. The increase in net income available to common shareholders for the six months ended June 30, 2018 is primarily due to an increase in Net gains on derivatives of $145 million, Gains on extinguishment of debt in 2018 compared to losses in 2017, resulting in an increase of $58 million and lower Net other-than-temporary impairment losses of $22 million, as compared to the same period of 2017. These increases to net income were offset in part by a decrease in Net unrealized gains on financial instruments at fair value of $144 million, compared to the same period of 2017.

Interest Income

The changes in our interest income for the quarter and six months ended June 30, 2018, as compared to the same period of 2017, are primarily driven by the repositioning of our balance sheet by adding Agency MBS and residential mortgage loans investments. These changes have impacted interest income for the quarter and six months ended as follows.

Interest income increased by $17 million, or 6%, to $306 million for the quarter ended June 30, 2018, as compared to$289 million for the same period of 2017. The increase was primarily due to an increase in interest income earned on Agency MBS of $19 million and residential mortgage loans of $11 million, which was driven by higher Agency MBS and residential mortgage loan balances, as compared to the same period of 2017. This increase was offset in part by lower interest income on our Non-Agency RMBS and Non-Agency RMBS transferred to consolidated VIEs of $12 million, compared to the same period of 2017.

Interest income increased by $64 million, or 12%, to $604 million for the six months ended June 30, 2018, as compared to $540 million for the same period of 2017. The increase was primarily due to an increase in interest income earned on residential mortgage loans of $68 million and Agency MBS of $25 million, which was driven by higher residential mortgage loan and Agency MBS balances, as compared to the same period of 2017. This increase was offset in part by lower interest income on our Non-Agency RMBS and Non-Agency RMBS transferred to consolidated VIEs of $28 million, compared to the same period of 2017.

Interest Expense

Interest expense increased by $23 million, or 17%, to $161 million for the quarter ended June 30, 2018, as compared to $138 million for the same period of 2017. The increase was primarily due to increased interest expense on repurchase agreements collateralized by RMBS from loan securitization of $14 million and repurchase agreements collateralized by Agency MBS of $8 million, which were primarily driven by higher repurchase agreements on these respective categories, compared to the same period of 2017. Interest expense is also higher as a result of higher interest rates in 2018 compared to 2017. Interest expense for GAAP reporting does not include the periodic costs of our derivatives, which are reported separately in our GAAP financial statements.

Interest expense increased by $63 million, or 25%, to $311 million for the six months ended June 30, 2018, as compared to $248 million for the same period of 2017. The increase was primarily due to increased interest expense on repurchase agreements collateralized by RMBS from loan securitization of $29 million, securitized debt, collateralized by seasoned subprime residential mortgage loans of $16 million and repurchase agreements collateralized by Agency MBS of $13 million, which were driven primarily by higher repurchase agreements and securitized debt balances on these respective categories, compared to the same period of 2017. Interest expense is also higher as a result of higher interest rates in 2018 compared to 2017. Interest expense for GAAP reporting does not include the periodic costs of our derivatives, which are reported separately in our GAAP financial statements.

Economic Net Interest Income

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Our “Economic net interest income” is a non-GAAP financial measure, that equals interest income, less interest expense and realized losses on our interest rate swaps. Realized losses on our interest rate swaps are the periodic net settlement payments made or received.  For the purpose of computing economic net interest income and ratios relating to cost of funds measures throughout this section, interest expense includes net payments on our interest rate swaps, which is presented as a part of Net realized gains (losses) on derivatives in our Consolidated Statements of Operations. Interest rate swaps are used to manage the increase in interest paid on repurchase agreements in a rising rate environment. Presenting the net contractual interest payments on interest rate swaps with the interest paid on interest-bearing liabilities reflects our total contractual interest payments. We believe this presentation is useful to investors because it depicts the economic value of our investment strategy by showing actual interest expense and net interest income. However, Economic net interest income should not be viewed in isolation and is not a substitute for net interest income computed in accordance with GAAP. Where indicated, interest expense, including interest payments on interest rate swaps, is referred to as economic interest expense. Where indicated, net interest income reflecting interest payments on interest rate swaps, is referred to as economic net interest income.

The following table reconciles the GAAP and non-GAAP measurements reflected in the Management’s Discussion and Analysis of Financial Condition and Results of Operations.

	GAAP Interest Income		GAAP Interest Expense		Net Realized (Gains) Losses on Interest Rate Swaps			Economic Interest Expense		GAAP Net Interest Income		Net Realized Gains (Losses) on Interest Rate Swaps			Other (1)			Economic Net Interest Income
For the Quarter Ended June 30, 2018	$	306,436	$	161,266	$	(1,246	)	$	160,020	$	145,170	$	1,246		$	436		$	146,852
For the Quarter Ended March 31, 2018	$	297,132	$	149,251	$	2,612		$	151,863	$	147,881	$	(2,612	)	$	143		$	145,412
For the Quarter Ended December 31, 2017	$	301,957	$	144,204	$	4,369		$	148,573	$	157,753	$	(4,369	)	$	(61	)	$	153,323
For the Quarter Ended September 30, 2017	$	296,813	$	140,358	$	3,489		$	143,847	$	156,455	$	(3,489	)	$	(167	)	$	152,799
For the Quarter Ended June 30, 2017	$	288,644	$	137,955	$	3,486		$	141,441	$	150,689	$	(3,486	)	$	(350	)	$	146,853

(1) Primarily interest expense/(income) on cash and cash equivalents.

Net Interest Rate Spread

The following table shows our average earning assets held, interest earned on assets, yield on average interest earning assets, average debt balance, economic interest expense, economic average cost of funds, economic net interest income, and net interest rate spread for the periods presented.

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	For the Quarter Ended
	June 30, 2018						June 30, 2017
	(dollars in thousands)						(dollars in thousands)
	Average Balance		Interest		Average Yield/Cost		Average Balance		Interest		Average Yield/Cost
Assets:
Interest-earning assets (1):
Agency MBS	$	5,149,790	$	43,328	3.4	%	$	3,661,335	$	24,289	2.7	%
Non-Agency RMBS	1,146,623		27,133		9.5	%	1,335,643		29,567		8.9	%
Non-Agency RMBS transferred to consolidated VIEs	788,432		49,209		25.0	%	1,069,509		58,486		21.9	%
Residential mortgage loans held for investment	13,041,746		187,202		5.7	%	12,391,023		175,952		5.7	%
Total	$	20,126,591	$	306,872	6.1	%	$	18,457,510	$	288,294	6.2	%
Liabilities and stockholders' equity:
Interest-bearing liabilities:
Repurchase agreements collateralized by:
Agency MBS (2)	$	4,780,044	$	20,661	1.7	%	$	3,156,501	$	12,190	1.5	%
Non-Agency RMBS	371,968		3,391		3.6	%	725,698		5,229		2.9	%
Re-Remic repurchase agreements	756,931		7,780		4.1	%	387,493		3,573		3.7	%
RMBS from loan securitizations	2,618,381		28,681		4.4	%	1,823,189		14,726		3.2	%
Securitized debt, collateralized by Non-Agency RMBS	187,355		2,637		5.6	%	284,127		5,563		7.8	%
Securitized debt, collateralized by loans	9,168,464		96,870		4.2	%	9,700,805		100,160		4.1	%
Total	$	17,883,143	$	160,020	3.6	%	$	16,077,813	$	141,441	3.5	%
Economic net interest income/net interest rate spread			$	146,852	2.5	%			$	146,853	2.7	%
Net interest-earning assets/net interest margin	$	2,243,448			2.9	%	$	2,379,697			3.2	%
Ratio of interest-earning assets to interest bearing liabilities	1.13						1.15
(1) Interest-earning assets at amortized cost
(2) Interest includes net cash paid/received on swaps

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	For the Six Months Ended
	June 30, 2018						June 30, 2017
	(dollars in thousands)						(dollars in thousands)
	Average Balance		Interest		Average Yield/Cost		Average Balance		Interest		Average Yield/Cost
Assets:
Interest-earning assets (1):
Agency MBS	$	4,710,377	$	76,670	3.3	%	$	3,688,464	$	51,921	2.8	%
Non-Agency RMBS	1,154,302		49,137		8.5	%	1,352,316		59,771		8.8	%
Non-Agency RMBS transferred to consolidated VIEs	829,918		101,316		24.4	%	1,105,210		118,620		21.5	%
Residential mortgage loans held for investment	13,132,886		377,024		5.7	%	10,741,082		308,806		5.7	%
Total	$	19,827,483	$	604,147	6.1	%	$	16,887,072	$	539,118	6.4	%
Liabilities and stockholders' equity:
Interest-bearing liabilities:
Repurchase agreements collateralized by:
Agency MBS (2)	$	3,907,750	$	36,800	1.9	%	$	3,135,947	$	23,663	1.5	%
Non-Agency RMBS	394,354		6,417		3.3	%	737,254		10,761		2.9	%
Re-Remic repurchase agreements	797,967		15,507		3.9	%	511,992		8,242		3.2	%
RMBS from loan securitizations	2,701,381		54,038		4.0	%	1,540,409		24,703		3.2	%
Securitized debt, collateralized by Non-Agency RMBS	193,496		5,462		5.6	%	300,793		10,576		7.0	%
Securitized debt, collateralized by loans	9,183,951		193,659		4.2	%	8,409,587		177,832		4.2	%
Total	$	17,178,899	$	311,883	3.6	%	$	14,635,982	$	255,777	3.5	%
Economic net interest income/net interest rate spread			$	292,264	2.5	%			$	283,341	2.9	%
Net interest-earning assets/net interest margin	$	2,648,584			2.9	%	$	2,251,090			3.4	%
Ratio of interest-earning assets to interest bearing liabilities	1.15						1.15
(1) Interest-earning assets at amortized cost
(2) Interest includes net cash paid/received on swaps

Economic Net Interest Income and the Average Earning Assets

Our economic net interest income remained relatively unchanged at $147 million for the quarter ended June 30, 2018 and 2017. Our economic net interest income increased by $9 million to $292 million for the six months ended June 30, 2018 from $283 million for the same period of 2017. Our net interest rate spread, which equals the yield on our average interest-earning assets less the economic average cost of funds decreased by 21 and 40 basis points for the quarter and six months ended June 30, 2018, as compared to the same period of 2017. The net interest margin, which equals the economic net interest income as a percentage of the net average balance of our interest-earning assets less our interest-bearing liabilities decreased by 26 and 50 basis points for the quarter and six months ended June 30, 2018, as compared to the same period of 2017. Average net interest-earning assets decreased by $136 million and increased by $397 million for the quarter and six months ended June 30, 2018 compared to the same periods of 2017. This increase in average net interest-earning assets was primarily driven by an increase in our investments in residential mortgage loans and Agency MBS, which was partially offset by an increase in our repurchase agreements and securitized debt, collateralized by loans portfolio.

Economic Interest Expense and the Cost of Funds

The borrowing rate at which we are able to finance our assets using repurchase agreements and securitized debt is typically correlated to LIBOR and the term of the financing. The table below shows our average borrowed funds, economic interest expense, average cost of funds (inclusive of realized losses on interest rate swaps), average one-month LIBOR, average six-month LIBOR and average one-month LIBOR relative to average six-month LIBOR.

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	Average Debt Balance		Economic Interest Expense (1)		Average Cost of Funds		Average One-Month LIBOR		Average Three-Month LIBOR		Average One-Month LIBOR Relative to Average Three-Month LIBOR
	(Ratios have been annualized, dollars in thousands)
For The Quarter Ended June 30, 2018	$	17,883,143	$	160,020	3.58	%	1.97	%	2.34	%	(0.37	)%
For The Quarter Ended March 31, 2018	$	16,642,471	$	151,863	3.65	%	1.65	%	1.92	%	(0.27	)%
For The Quarter Ended December 31, 2017	$	16,698,959	$	148,573	3.56	%	1.32	%	1.45	%	(0.13	)%
For The Quarter Ended September 30, 2017	$	16,198,005	$	143,847	3.55	%	1.23	%	1.31	%	(0.08	)%
For The Quarter Ended June 30, 2017	$	16,077,813	$	141,441	3.50	%	1.06	%	1.20	%	(0.14	)%

(1) Includes effect of realized losses on interest rate swaps.

Average interest-bearing liabilities increased by $1.8 billion for the quarter ended June 30, 2018, as compared to the same period of 2017. Economic interest expense increased by $19 million for the quarter ended June 30, 2018, as compared to the same period of 2017. The increase in average interest-bearing liabilities and economic interest expense is a result of the increase in the amount of our repurchase agreements and securitized debt collateralized by seasoned subprime mortgage loans as well as the increase in LIBOR.

Average one-month and three month LIBOR were up 91 basis points and 114 basis points, respectively, during the quarter ended June 30, 2018, as compared to the same period of 2017, contributing to the increase in economic interest expense. While we do acquire interest rate hedges to mitigate changes in interest rate risks, the hedges may not fully offset interest expense movements.

Net Other-than-temporary Credit Impairment Losses

OTTI losses are generated when fair values decline below our amortized cost basis, an unrealized loss, and the expected future cash flows decline from prior periods, an adverse change. When an unrealized loss and an adverse change in cash flows occur, we will recognize an OTTI loss in earnings. In addition, if we intend to sell a security, or believe we will be required to sell a security in an unrealized loss position, we will recognize an OTTI loss in earnings equal to the unrealized loss.

OTTI losses were $9 million and $14 million for the quarter ended June 30, 2018 and 2017, respectively, and $10 million and $32 million for the six months ended June 30, 2018 and 2017, respectively. Of these amounts, $9 million and $13 million of the OTTI for the quarters ended June 30, 2018 and 2017, and $9 million and $27 million for the six months ended June 30, 2018 and 2017, respectively, were related to securities included in our consolidated VIEs. As of June 30, 2018, we had three Non-agency RMBS security subject to OTTI in an unrealized loss position totaling $346 thousand for which we did not recognize impairment. We continue to monitor our investment portfolio and will record an OTTI for all investments in an unrealized loss position for which we do not believe we will recover our amortized cost prior to maturity or sale.

Net Gains (losses) on derivatives

Our interest rate swaps are primarily used to economically hedge the effects of changes in interest rates on our portfolio, specifically our floating rate debt. Therefore, we included the periodic interest costs of the interest rate swaps for the quarters and six months ended June 30, 2018 and 2017 on these economic hedges in our presentation of economic net interest income and our net interest spreads. As we do not account for these as hedges for GAAP presentation, we present these gains and losses separately in the Consolidated Statements of Operations. The decrease in the net periodic interest cost of the interest rate swaps are primarily due to the increase in interest rates and changes in our swap portfolio balance during the year.

The table below shows a summary of our net gains (losses) on derivative instruments, for the quarters and six months ended June 30, 2018 and 2017, respectively.

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	For the Quarters Ended						For the Six Months Ended
	June 30, 2018			June 30, 2017			June 30, 2018			June 30, 2017
	(dollars in thousands)
Periodic interest cost of interest rate swaps, net	$	1,246		$	(3,486	)	$	(1,365	)	$	(7,591	)
Realized gains (losses) on derivative instruments, net:
Treasury Futures	(2,210		)	(6,914		)	14,215			(8,998		)
Swaptions	(429		)	(1,081		)	(1,157		)	(4,250		)
Swaps - Terminations	—			(16,143		)	—			(16,143		)
Total realized gains (losses) on derivative instruments, net	(2,639		)	(24,138		)	13,058			(29,391		)
Unrealized gains (losses) on derivative instruments, net:
Interest Rate Swaps	21,165			4,377			106,129			10,693
Treasury Futures	5,984			2,179			(604		)	(388		)
Swaptions	(1,254		)	(754		)	1,789			393
Total unrealized gains (losses) on derivative instruments, net:	25,895			5,802			107,314			10,698
Total gains (losses) on derivative instruments, net	$	24,502		$	(21,822	)	$	119,007		$	(26,284	)

The net gains and losses on our derivatives include both unrealized and realized gains and losses. Realized gains and losses include the net cash paid and received on our interest rate swaps during the period as well as sales and settlements of our Treasury Futures and swaptions. The realized loss on our derivative instruments is primarily a result of the pay fixed leg of our swaps carried at a higher interest rate than the receive floating leg of these same swaps, resulting in a net payment on the periodic settlement of the swaps during the year. 

Unrealized gains and losses include the change in market value, period over period, on our derivatives portfolio. Changes in market value are generally a result of changes in interest rates. We may or may not ultimately realize these unrealized derivative gains and losses depending on trade activity, changes in interest rates and the values of the underlying securities. During the quarter and six months ended June 30, 2018, we recognized total net gains on derivatives of $25 million and $119 million, compared to total net losses on derivatives of $22 million and $26 million for the quarter and six months ended June 30, 2017. This was primarily driven by higher unrealized gains on interest rate swaps, realized gains on Treasury futures and no swaps termination losses in 2018 as compared to 2017.

There were no swap terminations during the quarter and six months ended June 30, 2018. We paid $16 million to terminate interest rate swaps with a notional value of $250 million during the quarter end six months ended June 30, 2017. Our Treasury futures positions remained unchanged at $620 million of notional value during the quarters and six month ended June 30, 2018 and 2017. We reduced our swaptions by $429 million of notional value to $53 million at June 30, 2018, as compared to the $482 million notional value at June 30, 2017.

Changes in our derivative positions were a result of changes in our portfolio composition and changes in interest rates.

We had net realized losses on our short futures positions of $2 million and realized gains of $14 million for the quarters and six months ended June 30, 2018. We had net realized losses of $7 million and $9 million during the quarter and six months ended June 30, 2017. The realized gains and losses were driven primarily by changes in interest rates during these periods, which effects the Treasury futures prices, resulting in realized gains or losses on our short futures positions. Treasury futures are not included in our economic interest expense and economic net interest income.

Net Unrealized Gains (Losses) on Financial Instruments at Fair Value

We have elected the fair value option with changes in fair value reflected in earnings for our IO RMBS securities, certain Non-Agency RMBS securities which receive residual cash flows, Loans held for investment, and the related financing for the loans consolidated as a VIE in our statement of financial condition. In addition, we have elected to account for Agency MBS investments acquired on or after July 1, 2017 under the fair value option. All Agency MBS investments owned prior to July 1, 2017 will continue to be carried at fair value with changes in fair value reported in other comprehensive income (OCI) as available-for-sale investments.

IO RMBS securities represent the right to receive the interest on a pool of mortgage backed securities, including both Agency and Non-Agency mortgage pools. The fair value of IO RMBS securities are heavily impacted by changes in expected

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prepayment rates. When IO securities prepay faster than expectations, the holder of the IO security will receive less interest on the investment due to the reduced principal.

We invest in overcollateralization classes of several seasoned pools of mortgage loans. These holdings generally do not have a traditional original and current face or notional face value amount and pay cash based on guidance in the trust documents when excess cash is available. Many of these holdings do not pay any interest and may never pay interest. We have elected to carry these overcollateralization classes at fair value with changes in fair value reflected in earnings.

The Net unrealized losses on financial instruments at fair value for the quarter and six months ended June 30, 2018 were $18 million and $4 million. The quarter to date 2018 losses on financial instruments at fair value were primarily driven by unrealized losses on Loans held for investment of $20 million and Agency MBS of $9 million, offset in part by unrealized gains on securitized debt collateralized by loans of $7 million. The year to date 2018 losses on financial instruments at fair value were driven primarily by unrealized losses on Agency MBS of $42 million, offset in part by unrealized gains on Loans held for investment of $22 million and securitized debt collateralized by loans of $15 million.

For the quarter and six months ended June 30, 2017, the Net unrealized gains on financial instruments at fair value were $68 million, and $140 million, respectively.

Gains and Losses on Sales of Assets and Losses on Extinguishment of Securitized Debt

We had net realized gains on sales of investments of $2 million during the quarter and six months ended June 30, 2018. For the quarter and six months ended June 30, 2017 our net realized gains on sales of investments were $5 million and $10 million. We do not forecast sales of investments as we generally expect to invest for long term gains. However, from time to time, we may sell assets to create liquidity necessary to pursue new opportunities, achieve targeted leverage ratios as well as for gains when prices indicate a sale is most beneficial to us, or is the most prudent course of action to maintain a targeted risk adjusted yield for our investors.

When we acquire our outstanding securitized debt, we extinguish the outstanding debt and recognize a gain or loss based on the difference between the carrying value of the debt and the cost to acquire the debt which is reflected in the Consolidated Statements of Operations as a gain or loss on extinguishment of debt.

During the quarter ended June 30, 2018, we acquired securitized debt collateralized by loans with an amortized cost balance of $155 million for $154 million. This transaction resulted in a net gain on the extinguishment of debt of $385 thousand, which is reflected in earnings for the quarter ended June 30, 2018. During the six months ended June 30, 2018, we acquired securitized debt collateralized by loans with an amortized cost balance of $304 million for $294 million. This transaction resulted in a net gain on the extinguishment of debt of $10 million, which is reflected in earnings for the quarter ended June 30, 2018.

During the quarter ended June 30, 2017, we acquired securitized debt collateralized by loans with an amortized cost balance of $197 million for $245 million. This transaction resulted in a net loss on extinguishment of debt of $48 million, which is reflected in earnings for the quarter and six months ended June 30, 2017. As the Company's securitized debt is carried at fair value with changes in fair value reflected in earnings some of this loss was recognized during prior periods.

Compensation, General and Administrative Expenses and Deal Expenses

The table below shows our total compensation and benefit expense, general and administrative, or G&A expenses, and deal expenses as compared to average total assets and average equity for the periods presented.

	Total Compensation, G&A and Deal Expenses		Total Compensation, G&A and Deal Expenses/Average Assets		Total Compensation, G&A and Deal Expenses/Average Equity
	(Ratios have been annualized, dollars in thousands)
For The Quarter Ended June 30, 2018	$	16,644	0.30	%	1.82	%
For The Quarter Ended March 31, 2018	$	14,988	0.28	%	1.64	%
For The Quarter Ended December 31, 2017	$	17,158	0.32	%	1.89	%
For The Quarter Ended September 30, 2017	$	15,427	0.29	%	1.71	%
For The Quarter Ended June 30, 2017	$	13,601	0.26	%	1.53	%

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Compensation and benefit costs were $9 million and $8 million for the quarter ended June 30, 2018 and 2017, and $17 million and $15 million for the six months ended June 30, 2018 and 2017, respectively. The increases in Compensation and benefit costs were primarily driven by higher stock based compensation and hiring new employees.

G&A expenses were $6 million and $5 million for the quarter ended June 30, 2018 and 2017, and $11 million and $9 million for the six months ended June 30, 2018 and 2017, respectively. The G&A expenses are primarily comprised of auditing, information technology, legal and consulting expenses. The increases in G&A expenses were primarily driven by higher legal expenses as compared to the same period of 2017.

The Company incurred deal expenses of $2 million and $1 million for the quarter ended June 30, 2018 and 2017, respectively, and $3 million and $13 million for the six months ended June 30, 2018 and 2017, respectively. The decrease in deal expenses during the six months ended June 30, 2018 was driven by lower securitization activity compared to the same period of 2017.

Servicing Fees

Servicing fees expenses were $10 million and $11 million during the quarter ended June 30, 2018 and 2017, respectively. For the six months ended June 30, 2018 and 2017, the servicing fees were $21 million and $20 million. These servicing fees are related to the consolidation of the whole loan securitization vehicles and are paid from interest income earned by the VIEs. The servicing fees range from 20 to 50 basis points of unpaid principal balances of our consolidated VIEs.

Core earnings

Core earnings is a non-GAAP measure and is defined as GAAP net income excluding unrealized gains on the aggregate portfolio, impairment losses, realized gains on sales of investments, realized gains or losses on futures, realized gains or losses on swap terminations, gain on deconsolidation, extinguishment of debt and certain other non-recurring gains or losses. As defined, core earnings include interest income and expense as well as realized losses on interest rate swaps used to hedge interest rate risk and other expenses. Management believes that the presentation of core earnings provides investors with a useful measure to facilitate comparisons of financial performance between our REIT peers, but has important limitations. We believe core earnings as described above helps evaluate our financial performance without the impact of certain transactions but is of limited usefulness as an analytical tool. Therefore, core earnings should not be viewed in isolation and is not a substitute for net income or net income per basic share computed in accordance with GAAP.

The following table provides GAAP measures of net income and net income per basic share available to common stockholders for the periods presented and details with respect to reconciling the line items to core earnings and related per average basic common share amounts:

	For the Quarters Ended
	June 30, 2018			March 31, 2018			December 31, 2017			September 30, 2017			June 30, 2017
	(dollars in thousands, except per share data)
GAAP Net income available to common stockholders	$	108,708		$	229,607		$	98,208		$	129,832		$	105,617
Adjustments:
Net other-than-temporary credit impairment losses	9,131			1,158			18,179			11,468			13,509
Net unrealized (gains) losses on derivatives	(25,895		)	(81,419		)	(28,074		)	(9,204		)	(5,802		)
Net unrealized (gains) losses on financial instruments at fair value	18,364			(14,466		)	47,637			(19,042		)	(67,762		)
Net realized (gains) losses on sales of investments	(2,167		)	—			586			(1		)	(4,541		)
(Gains) losses on extinguishment of debt	(387		)	(9,670		)	(12,742		)	1			48,014
Realized (gains) losses on terminations of interest rate swaps	—			—			—			—			16,143
Net realized (gains) losses on Futures (1)	2,210			(16,424		)	(8,204		)	3,267			6,914
Core Earnings	$	109,964		$	108,786		$	115,590		$	116,321		$	112,092
GAAP net income per basic common share	$	0.58		$	1.22		$	0.52		$	0.69		$	0.56
Core earnings per basic common share(2)	$	0.59		$	0.58		$	0.62		$	0.62		$	0.60
(1) Included in net realized gains (losses) on derivatives in the Consolidated Statements of Operations.
(2) We note that core and taxable earnings will typically differ, and may materially differ, due to differences on realized gains and losses on investments and related hedges, credit loss recognition,
timing differences in premium amortization, accretion of discounts, equity compensation and other items.

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Our core earnings for the quarter ended June 30, 2018 were $110 million, or $0.59 per average basic common share, compared to $112 million, or $0.60 per average basic common share, for the quarter ended June 30, 2017.

Net Income (Loss) and Return on Total Stockholders' Equity

The table below shows our Net Income, Economic Net Interest Income and Core Earnings, each as a percentage of average stockholders' equity. Return on average equity is defined as our GAAP net income (loss) as a percentage of average equity.  Average equity is defined as the average of our beginning and ending stockholders' equity balance for the period reported. Economic Net Interest Income and Core Earnings are non-GAAP measures as defined in previous sections.

	Return on Average Equity		Economic Net Interest Income/Average Equity *		Core Earnings/Average Equity
	(Ratios have been annualized)
For the Quarter Ended June 30, 2018	12.91	%	16.05	%	12.02	%
For the Quarter Ended March 31, 2018	26.17	%	15.92	%	11.91	%
For the Quarter Ended December 31, 2017	11.82	%	16.85	%	12.70	%
For the Quarter Ended September 30, 2017	15.42	%	16.92	%	12.88	%
For the Quarter Ended June 30, 2017	12.98	%	16.57	%	12.65	%

* Includes effect of realized losses on interest rate swaps.

Return on average equity decreased slightly by 7 basis points for the quarter ended June 30, 2018, as compared to the same period of 2017. Economic net interest income as a percentage of average equity decreased by 52 basis points, driven primarily by higher average equity balance and higher interest expense related to the increase in LIBOR rates. Core earnings as a percentage of average equity decreased by 63 basis points for the quarter ended June 30, 2018 compared to the quarter ended June 30, 2017, which was primarily driven by a decrease in core earnings of $2 million and a higher average equity balance.

Financial Condition

Portfolio Review

During the six months ended June 30, 2018, on an aggregate basis, we purchased $3.8 billion of investments, sold $390 million of investments and received $1.5 billion in principal payments related to our Agency, Non-Agency RMBS and Loans held for investments portfolio.

The following table summarizes certain characteristics of our portfolio at June 30, 2018 and December 31, 2017.

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	June 30, 2018			December 31, 2017
Interest earning assets at period-end (1)	$	22,829,272		$	20,894,407
Interest bearing liabilities at period-end	$	18,647,158		$	16,844,889
GAAP Leverage at period-end	5.1:1			4.6:1
GAAP Leverage at period-end (recourse)	2.5:1			2.0:1
Portfolio Composition, at amortized cost
Non-Agency RMBS	5.3		%	5.9		%
Senior	3.0		%	2.9		%
Senior, interest only	1.4		%	1.3		%
Subordinated	0.9		%	1.7		%
Subordinated, interest only	0.0		%	0.0		%
RMBS transferred to consolidated VIEs	3.2		%	4.6		%
Agency MBS	32.7		%	22.2		%
Residential	21.5		%	11.8		%
Commercial	10.7		%	9.8		%
Interest-only	0.5		%	0.6		%
Loans held for investment	58.8		%	67.3		%
Fixed-rate percentage of portfolio	94.7		%	93.7		%
Adjustable-rate percentage of portfolio	5.3		%	6.3		%
Annualized yield on average interest earning assets for the periods ended	6.1		%	6.3		%
Annualized cost of funds on average borrowed funds for the periods ended (2)	3.6		%	3.6		%

(1) Excludes cash and cash equivalents.

(2) Includes the effect of realized losses on interest rate swaps.

GAAP leverage at period-end is calculated as a ratio of our repurchase agreements and securitized debt liabilities over GAAP book value. GAAP recourse leverage is calculated as a ratio of our repurchase agreements over GAAP book value.

The following table presents details of each asset class in our portfolio at June 30, 2018 and December 31, 2017. The principal or notional value represents the interest income earning balance of each class. The weighted average figures are weighted by each investment’s respective principal/notional value in the asset class.

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	June 30, 2018
	Principal or Notional Value at Period-End  (dollars in thousands)		Weighted Average Amortized Cost Basis		Weighted Average Fair Value		Weighted Average Coupon		Weighted Average Yield at Period-End (1)		Weighted Average 3 Month CPR at Period-End		Weighted Average 12 Month CPR at Period-End		Weighted Average Delinquency Pipeline 60+		Weighted Average Loss Severity(2)		Weighted Average Credit Enhancement		Principal Writedowns During the Quarter  (dollars in thousands)
Non-Agency Mortgage-Backed Securities
Senior	$	970,969	$	66.68	$	81.09	4.4	%	8.7	%	12.8	%	13.6	%	19.5	%	44.4	%	7.4	%	$	1,713
Senior, interest only	$	5,256,222	$	5.72	$	4.73	1.4	%	8.9	%	14.0	%	14.0	%	14.3	%	53.8	%	0.0	%	$	—
Subordinated	$	352,726	$	57.79	$	75.36	4.1	%	10.9	%	17.7	%	18.4	%	14.5	%	49.4	%	10.1	%	$	1,986
Subordinated, interest only	$	206,557	$	4.49	$	5.07	0.9	%	11.8	%	19.3	%	15.2	%	10.0	%	41.5	%	0.0	%	$	—
RMBS transferred to consolidated VIEs	$	1,578,361	$	44.19	$	81.12	5.0	%	26.5	%	17.8	%	16.3	%	16.8	%	49.5	%	1.4	%	$	2,079
Agency Mortgage-Backed Securities
Residential	$	4,527,730	$	103.70	$	101.88	4.0	%	3.4	%	8.5	%	13.8	%	0.3	%	N/A		N/A		$	—
Commercial	$	2,300,891	$	102.08	$	98.81	3.6	%	3.4	%	0.1	%	0.1	%	0.0	%	N/A		N/A		$	—
Interest-only	$	3,010,512	$	3.65	$	3.42	0.7	%	3.3	%	5.5	%	7.4	%	0.1	%	N/A		N/A		$	—
Loans held for investment	$	13,083,186	$	98.35	$	101.37	6.4	%	5.8	%	10.7	%	10.5	%	3.4	%	49.5	%	N/A		$	23,336

(1) Bond Equivalent Yield at period end. Weighted Average Yield is calculated using each investment's respective amortized cost.

(2) Calculated based on reported losses to date, utilizing widest data set available (i.e., life-time losses, 12-month loss, etc.)

	December 31, 2017
	Principal or Notional Value at Period-End  (dollars in thousands)		Weighted Average Amortized Cost Basis		Weighted Average Fair Value		Weighted Average Coupon		Weighted Average Yield at Period-End (1)		Weighted Average 3 Month CPR at Period-End		Weighted Average 12 Month CPR at Period-End		Weighted Average Delinquency Pipeline 60+		Weighted Average Loss Severity(2)		Weighted Average Credit Enhancement		Principal Writedowns During the Quarter (dollars in thousands)
Non-Agency Mortgage-Backed Securities
Senior	$	821,869	$	68.97	$	79.83	3.6	%	7.4	%	13.3	%	13.7	%	21.3	%	45.8	%	9.2	%	$	3,233
Senior, interest only	$	4,834,289	$	5.39	$	4.27	1.3	%	7.8	%	13.6	%	14.4	%	17.1	%	52.5	%	0.0	%	$	—
Subordinated	$	501,455	$	66.77	$	80.01	4.1	%	9.6	%	18.8	%	15.4	%	15.2	%	45.1	%	16.8	%	$	3,502
Subordinated, interest only	$	201,378	$	3.66	$	3.89	0.8	%	11.8	%	13.7	%	14.6	%	13.0	%	46.2	%	0.0	%	$	—
RMBS transferred to consolidated VIEs	$	1,940,229	$	47.05	$	81.42	4.9	%	22.6	%	15.0	%	16.4	%	17.9	%	49.0	%	1.3	%	$	10,678
Agency Mortgage-Backed Securities
Residential	$	2,227,128	$	105.53	$	104.27	3.8	%	2.9	%	12.1	%	14.5	%	0.7	%	N/A		N/A		$	—
Commercial	$	1,894,594	$	102.26	$	102.31	3.6	%	3.2	%	1.5	%	—	%	0.0	%	N/A		N/A		$	—
Interest-only	$	3,021,840	$	3.68	$	3.45	0.7	%	3.4	%	4.9	%	8.8	%	0.1	%	N/A		N/A		$	—
Loans held for investment	$	13,525,820	$	98.44	$	101.20	6.5	%	5.9	%	10.8	%	11.0	%	4.1	%	45.8	%	N/A		$	30,469

(1) Bond Equivalent Yield at period end. Weighted Average Yield is calculated using each investment's respective amortized cost.

(2) Calculated based on reported losses to date, utilizing widest data set available (i.e., life-time losses, 12-month loss, etc.)

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Based on the projected cash flows for our Non-Agency RMBS that are not of high credit quality, a portion of the original purchase discount is designated as Accretable Discount, which reflects the purchase discount expected to be accreted into interest income, and a portion is designated as Non-Accretable Difference, which represents the contractual principal on the security that is not expected to be collected. The amount designated as Non-Accretable Difference may be adjusted over time, based on the actual performance of the security, its underlying collateral, actual and projected cash flow from such collateral, economic conditions and other factors. If the performance of a security is more favorable than previously estimated, a portion of the amount designated as Non-Accretable Difference may be transferred to accretable discount and accreted into interest income over time. Conversely, if the performance of a security is less favorable than previously estimated, an OTTI may be recognized resulting in an increase in the amounts designated as Non-Accretable Difference.

The following table presents changes to Accretable Discount (net of premiums) as it pertains to our Non-Agency RMBS portfolio, excluding premiums on IOs, during the previous five quarters.

	For the Quarters Ended
Accretable Discount (Net of Premiums)	June 30, 2018			March 31, 2018			December 31, 2017			September 30, 2017			June 30, 2017
	(dollars in thousands)
Balance, beginning of period	$	555,444		$	582,193		$	622,982		$	627,724		$	648,659
Accretion of discount	(38,110		)	(37,309		)	(39,640		)	(43,502		)	(42,625		)
Purchases	3,098			—			(2,914		)	1,723			(108		)
Sales and deconsolidation	(6,439		)	174			—			5,792			212
Transfers from/(to) credit reserve, net	26,276			10,386			1,765			31,245			21,586
Balance, end of period	$	540,269		$	555,444		$	582,193		$	622,982		$	627,724

Liquidity and Capital Resources

General

Liquidity measures our ability to meet cash requirements, including ongoing commitments to repay our borrowings, purchase RMBS, mortgage loans and other assets for our portfolio, pay dividends and other general business needs. Our principal sources of capital and funds for additional investments primarily include earnings, principal paydowns and sales from our investments, borrowings under securitizations and re-securitizations, repurchase agreements and other financing facilities including warehouse facilities, and proceeds from equity or other securities offerings. We also maintain a certain amount of liquid, un-levered securities that we can either finance with recourse or sell if we have liquidity needs.

To meet our short term (one year or less) liquidity needs, we expect to continue to borrow funds in the form of repurchase agreements and, subject to market conditions, other types of financing. The terms of the repurchase transaction borrowings under our master repurchase agreements generally conform to the terms in the standard master repurchase agreement as published by the Securities Industry and Financial Markets Association, or SIFMA, as to repayment, margin requirements and the segregation of all securities we have initially sold under the repurchase transaction. In addition, each lender typically requires that we include supplemental terms and conditions to the standard master repurchase agreement. Typical supplemental terms and conditions include changes to the margin maintenance requirements, required haircuts or the percentage that is subtracted from the value of RMBS that collateralizes the financing, purchase price maintenance requirements, and requirements that all disputes related to the repurchase agreement be litigated or arbitrated in a particular jurisdiction. These provisions may differ for each of our lenders. 

Based on our current portfolio, leverage ratio and available borrowing arrangements, we believe our assets will be sufficient to enable us to meet anticipated short-term liquidity requirements. However, a decline in the value of our collateral could cause a temporary liquidity shortfall due to the timing of margin calls on the financing arrangements and the actual receipt of the cash related to principal paydowns. If our cash resources are insufficient to satisfy our liquidity requirements, we may have to sell investments, potentially at a loss, issue debt or additional common or preferred equity securities.

To meet our longer term liquidity needs (greater than one year), we expect our principal sources of capital and funds to continue to be provided by earnings, principal paydowns and sales from our investments, borrowings under securitizations and re-securitizations, repurchase agreements and other financing facilities, as well as proceeds from equity or other securities offerings.

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In addition to the principal sources of capital described above, we may enter into warehouse facilities and use longer dated structured repurchase agreements. The use of any particular source of capital and funds will depend on market conditions, availability of these facilities, and the investment opportunities available to us.

Current Period

We held cash and cash equivalents of approximately $91 million and $64 million at June 30, 2018 and December 31, 2017, respectively. As a result of our operating, investing and financing activities described below, our cash position increased by $27 million from December 31, 2017 to June 30, 2018.

Our operating activities provided net cash of approximately $306 million and $183 million for the six months ended June 30, 2018 and 2017, respectively. The cash provided by our operations is primarily due to interest received in excess of interest paid during the period. For the six months ended June 30, 2018 and 2017, interest received net of interest paid was $302 million and $280 million, respectively.

Our investing activities used cash of $1.9 billion and $3.3 billion for the six months ended June 30, 2018 and 2017, respectively. During the six months ended June 30, 2018, we used cash for investment purchases of $3.8 billion, primarily Agency MBS and Loans held for investments. This cash used was offset in part by cash received for principal repayments on our Agency MBS, Non-Agency MBS, and Loans held for investments of $1.5 billion and sale of investments of $390 million.During the six months ended June 30, 2017, we purchased investments of $4.8 billion, primarily Loans held for investments. This cash used was offset in part by cash received for principal repayments on our Agency MBS, Non-Agency MBS and securitized loans of $1.3 billion.

Our financing activities provided cash of $1.6 billion and $3.2 billion for the six months ended June 30, 2018 and 2017, respectively. During the six months ended June 30, 2018, we received cash from debt issuance of $1.2 billion and net proceeds received on our repurchase agreements of $1.9 billion. These receipts of cash were offset in part by cash used for repayment of principal on our securitized debt of $1.2 billion, common and preferred dividends paid of $206 million, and repurchased common stock of $15 million. During the six months ended June 30, 2017, we received cash of $3.5 billion from debt issuance, $314 million from our preferred stock Series B offering and $653 million from net proceeds received on repurchase agreements. This cash provided was offset in part by repayment of principal on our securitized debt of $1.1 billion and common and preferred dividends paid of $205 million.

Our recourse leverage is 2.5:1 and 2.0:1 for the six months ended June 30, 2018 and for the year ended December 31, 2017. Our recourse leverage excludes the securitized debt which can only be repaid from the proceeds on the assets securing this debt in their respective VIEs. Our recourse leverage is presented as a ratio of our repurchase agreements, which are recourse to the assets of the Company, to our equity.

We believe that our cash balances and liquid Agency portfolio provides an appropriate level of liquidity. Even though we have unrestricted Agency MBS investments, we expect to meet our future cash needs primarily from principal and interest payments on our portfolio and do not anticipate the need to sell unrestricted Agency MBS investments to meet our liquidity needs. We expect to continue to finance our MBS portfolio largely through repurchase agreements and loans through the securitization market. In addition, we may from time to time sell securities, issue debt, or issue equity as a source of cash to fund new purchases.

At June 30, 2018 and December 31, 2017 the remaining maturities on our RMBS repurchase agreements were as follows.

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	June 30, 2018		December 31, 2017
	(dollars in thousands)
Overnight	$	—	$	—
1 to 29 days	4,757,404		4,745,342
30 to 59 days	1,915,294		1,206,769
60 to 89 days	1,460,284		592,865
90 to 119 days	90,183		—
Greater than or equal to 120 days	903,883		705,476
Total	$	9,127,048	$	7,250,452
Average remaining maturity of Repurchase agreements secured by:
Agency MBS	24 days		28 days
Non-agency MBS and Loans held for investment	98 days		93 days

We collateralize the repurchase agreements we use to finance our operations with our MBS investments. Our counterparties negotiate a ‘haircut’, which is the difference expressed in percentage terms between the fair value of the collateral and the amount the counterparty will lend to us, when we enter into a financing transaction. The size of the haircut reflects the perceived risk associated with holding the MBS by the lender. The haircut provides lenders with a cushion for daily market value movements that reduce the need for a margin call to be issued or margin to be returned as normal daily increases or decreases in MBS market values occur. At June 30, 2018, and December 31, 2017, the weighted average haircut on our repurchase agreements collateralized by Agency MBS was 5.0% and 5.1%, respectively. At June 30, 2018, the weighted average haircut on our repurchase agreements collateralized by Non-Agency MBS and Loans held for investments was 25.8% compared to 26.2% at December 31, 2017. At June 30, 2018, the weighted average borrowing rates for our repurchase agreements collateralized by Agency MBS was 2.09% and Non-Agency MBS and Loans held for investments was 4.02%. At December 31, 2017, the weighted average borrowing rates for our repurchase agreements collateralized by Agency MBS was 1.47% and Non-Agency MBS and Loans held for investment was 3.41%, respectively.

As the fair value of the Non-Agency MBS is more difficult to determine, as well as more volatile period to period than Agency MBS, the Non-Agency MBS typically requires a larger haircut. In addition, when financing assets using standard form of SIFMA Master Repurchase Agreements, the counterparty to the agreement typically nets its exposure to us on all outstanding repurchase agreements and issues margin calls if movement of the fair values of the assets in the aggregate exceeds their allowable exposure to us. A decline in asset fair values could create a margin call, or may create no margin call depending on the counterparty’s specific policy. In addition, counterparties consider a number of factors, including their aggregate exposure to us as a whole and the number of days remaining before the repurchase transaction closes prior to issuing a margin call. See Note 5 to our Consolidated Financial Statements for a discussion on how we determine the fair values of the RMBS collateralizing our repurchase agreements.

The table below presents our average daily repurchase balance and the repurchase balance at each period end for the periods presented. Our balance at period-end tends to fluctuate from the average daily balances due to the adjusting of the size of our portfolio by using leverage. We continue to deploy capital for strategic purchases of investments.

Period	Average Repurchase Balance		Repurchase Balance at Period End
	(dollars in thousands)
Quarter End June 30, 2018	$	8,527,325	$	9,127,048
Quarter End March 31, 2018	$	7,257,048	$	7,202,924
Quarter End December 31, 2017	$	7,028,460	$	7,250,452
Quarter End September 30, 2017	$	6,549,891	$	6,709,821
Quarter End June 30, 2017	$	6,092,881	$	6,254,153

We are not required to maintain any specific debt-to-equity ratio. We believe the appropriate leverage for the particular assets we are financing depends on the credit quality and risk of those assets. At June 30, 2018 and December 31, 2017, the carrying value of our total debt was approximately $18.6 billion and $16.8 billion, respectively, which represented a debt-to-equity ratio

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for both periods of approximately 5.1:1 and 4.6:1. We include our repurchase agreements and securitized debt in the numerator of our debt-to-equity ratio and stockholders’ equity as the denominator.

At June 30, 2018, we had repurchase agreements with 29 counterparties. All of our repurchase agreements are secured by Agency, Non-Agency RMBS and Loans held for investments or, in limited circumstances, cash. Under these repurchase agreements we may not be able to reclaim our collateral but still be obligated to pay our repurchase obligations. We mitigate this risk by spreading our exposure to multiple counterparties, as well as ensuring our counterparties are highly rated. Therefore, we believe the risk of loss of our collateral posted is mitigated by the terms of our agreements. As of June 30, 2018 and December 31, 2017, we had $10.6 billion and $8.8 billion, respectively, of securities pledged against our repurchase agreement obligations.

At June 30, 2018, our repurchase agreements have original maturities ranging from less than 30 days to 486 days and a weighted average original maturity of 89 days. We expect to renew most of our repurchase agreements at maturity. When we renew our repurchase agreements, there is a risk that we will not be able to obtain as favorable an interest rate as a result of rising rates.

We offset the interest rate risk of our repurchase agreements primarily through the use of interest rate swaps, swaptions and treasury futures. The average remaining maturities on our interest rate swaps at June 30, 2018 range from 1 year to 31 years and have a weighted average maturity of approximately 6 years. All of our swaps are cleared by a central clearing house. When our interest rate swaps are in a net loss position (expected cash payments are in excess of expected cash receipts on the swaps), we post collateral as required by the terms of our swap agreements. We have three swaption counterparties and two futures counterparties and we have posted $2 million of cash as a collateral to our futures counterparties.

Exposure to Financial Counterparties

We actively manage the number of repurchase agreement counterparties. The following table summarizes our exposure to our repurchase agreement counterparties at June 30, 2018:

June 30, 2018
Country	Number of Counterparties	Repurchase Agreement Financing		Interest Rate Swaps at Fair Value		Exposure (1)
(dollars in thousands)
United States	14	$	3,746,462	$	639	$	461,075
Canada	3	1,264,775		—		179,213
Japan	4	1,247,548		—		245,154
Switzerland	1	1,093,557		—		409,554
France	2	603,684		148,747		90,314
United Kingdom	2	366,100		—		16,580
China	1	320,799		—		17,880
South Korea	1	288,347		—		20,289
Netherlands	1	195,776		—		17,931
Total	29	$	9,127,048	$	149,386	$	1,457,990

(1) Represents the amount of securities pledged as collateral to each counterparty less the aggregate of repurchase agreement financing and unrealized loss on swaps for each counterparty.

Over the past several years, several large European financial institutions have experienced financial difficulty and have been either rescued by government assistance or by other large European banks or institutions. Some of these financial institutions or their U.S. subsidiaries have provided us financing under repurchase agreements or we have entered into interest rate swaps with such institutions. We have entered into repurchase agreements or exchange cleared interest rate swaps with 6 counterparties as of June 30, 2018 that are either domiciled in Europe or is a U.S.-based subsidiary of a European-domiciled financial institution.

If the European credit volatility, including countries that may choose to leave the Euro zone as Britain has, continues to impact these major European financial institutions, it is possible that it will also impact the operations of their U.S. subsidiaries. Our financings and operations could be adversely affected by such events. We monitor our exposure to our repurchase agreement and swap counterparties on a regular basis, using various methods, including review of recent rating agency actions, financial relief plans, credit spreads or other developments and by monitoring the amount of cash and securities collateral pledged and

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the associated loan amount under repurchase agreements or the fair value of swaps with our counterparties. We make reverse margin calls on our counterparties to recover excess collateral as permitted by the agreements governing our financing arrangements or interest rate swaps, or may try to take other actions to reduce the amount of our exposure to a counterparty when necessary.

At June 30, 2018, we did not use credit default swaps or other forms of credit protection to hedge the exposures summarized in the table above.

Stockholders’ Equity

In February 2018, our Board of Directors reauthorized $100 million under our share repurchase program (the “Repurchase Program”). Such authorization does not have an expiration date and, at present, there is no intention to modify or otherwise rescind such authorization. Shares of our common stock may be purchased in the open market, including through block purchases, through privately negotiated transactions, or pursuant to any trading plan that may be adopted in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended. The timing, manner, price and amount of any repurchases will be determined at our discretion and the program may be suspended, terminated or modified at any time for any reason. Among other factors, the Company intends to only consider repurchasing shares of our common stock when the purchase price is less than the last publicly reported book value per common share. In addition, the Company does not intend to repurchase any shares from directors, officers or other affiliates. The program does not obligate the Company to acquire any specific number of shares, and all repurchases will be made in accordance with Rule 10b-18, which sets certain restrictions on the method, timing, price and volume of stock repurchases.

Pursuant to our Repurchase Program, during the first quarter of 2018, we repurchased approximately 883 thousand shares of our common stock at an average price of $16.81 per share for a total of $15 million. Other than as discussed below under “Restricted Stock Grants,” we did not issue any common shares during the quarters and six months ended June 30, 2018 and 2017.

We declared dividends to Series A preferred stockholders of $3 million and $6 million, or $0.50 and $1.00, respectively, per preferred share during the quarter and six months ended June 30, 2018 and 2017, respectively.

We declared dividends to Series B preferred stockholders of $7 million and $13 million, or $0.50 and $1.00 per preferred share, respectively, during the quarter and six months ended June 30, 2018. We declared dividends to Series B preferred stockholders of $7 million and $9 million, or $0.50 and $0.68, respectively, per preferred share during the quarter and six months ended June 30, 2017, respectively.

During the quarter and six months ended June 30, 2018, and 2017, we declared dividends to common shareholders of $94 million and $188 million, or $0.50 and $1.00 per share, respectively.

Restricted Stock Unit Grants

During the first quarter of 2018 and 2017, we granted certain of its employees Restricted Stock Units (“RSU”) awards. RSU awards are designed to reward certain employees for services provided over the previous year. Generally, the RSU awards vest equally over a three-year period beginning from the grant date and will fully vest after three years. The RSU awards are valued at the market price of our common stock on the grant date and the employees must be employed by us on the vesting dates to receive the RSU awards. We granted 241 thousand and 112 thousand RSU awards during the first quarter of 2018 and 2017, with a grant date fair value of $4 million and $2 million, respectively, which will be recognized as compensation expense on a straight-line basis over the three year vesting period.

During the first quarter of 2018 and 2017, we granted certain employees 133 thousand and 144 thousand Performance Share Units (“PSU”) awards, respectively. PSU awards are designed to align compensation with our future performance. The PSU awards include a three year performance period ending on December 31, 2020 and December 31, 2019, respectively.  The final number of shares that will vest will be between 0% to 150% of the total PSU awards granted based on our stock performance as compared to an index of comparable financial institutions and will cliff vest at the end of the performance period.  The PSU awards are measured at fair value on the grant date which will be recognized as compensation expense ratably over the three-year vesting period.  Fair value is determined using a Monte Carlo valuation model developed to value the specific features of the PSU awards, including market based conditions. Inputs into the model include our historical volatility, the peer average historical volatility, and the correlation coefficient of the volatility.  In addition, inputs also included the share price at the beginning of the measurement period and an estimated total shareholder return for both us and the peer group of comparable financial institutions.  Based on the model results, the 133 thousand PSU awards granted during 2018 had a grant date value of

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$2 million that will cliff vest on December 31, 2020. The 144 thousand PSU awards granted during 2017 had a grant date value of $3 million which will cliff vest on December 31, 2019.

At June 30, 2018 and December 31, 2017, there were approximately 1 million and 770 thousand unvested shares of RSU's issued to our employees, respectively.

Contractual Obligations and Commitments

The following tables summarize our contractual obligations at June 30, 2018 and December 31, 2017. The estimated principal repayment schedule of the securitized debt is based on expected cash flows of the residential mortgage loans or RMBS, as adjusted for expected principal writedowns on the underlying collateral of the debt.

June 30, 2018
(dollars in thousands)
Contractual Obligations	Within One Year		One to Three Years		Three to Five Years		Greater Than or Equal to Five Years		Total
Repurchase agreements for RMBS	$	8,811,840	$	315,208	$	—	$	—	$	9,127,048
Securitized debt, collateralized by Non-Agency RMBS	30,923		37,753		11,461		5,600		85,737
Securitized debt at fair value, collateralized by loans held for investment	1,785,710		2,818,626		2,110,377		2,493,804		9,208,517
Interest expense on RMBS repurchase agreements (1)	40,364		982		—		—		41,346
Interest expense on securitized debt (1)	411,999		630,007		378,861		472,116		1,892,983
Total	$	11,080,836	$	3,802,576	$	2,500,699	$	2,971,520	$	20,355,631

(1) Interest is based on variable rates in effect as of June 30, 2018.

December 31, 2017
(dollars in thousands)
Contractual Obligations	Within One Year		One to Three Years		Three to Five Years		Greater Than or Equal to Five Years		Total
Repurchase agreements for RMBS	$	6,903,337	$	347,115	$	—	$	—	$	7,250,452
Securitized debt, collateralized by Non-Agency RMBS	42,217		45,916		16,524		4,867		109,524
Securitized debt at fair value, collateralized by loans held for investment	1,819,018		2,872,572		2,140,434		2,439,872		9,271,896
Interest expense on RMBS repurchase agreements (1)	30,091		978		—		—		31,069
Interest expense on securitized debt (1)	392,416		606,509		368,553		472,640		1,840,118
Total	$	9,187,079	$	3,873,090	$	2,525,511	$	2,917,379	$	18,503,059

(1) Interest is based on variable rates in effect as of December 31, 2017.

The unfunded construction loan commitments of $784 million and $567 million as of June 30, 2018 and December 31, 2017, respectively, will primarily be paid within one year of reported periods.

Off-Balance Sheet Arrangements

We do not have any relationships with unconsolidated entities or financial partnerships, such as entities often referred to as structured finance or special purpose entities, which would have been established for the purpose of facilitating off-balance sheet arrangements or other contractually narrow or limited purposes. Further, we have not guaranteed any obligations of unconsolidated entities nor do we have any commitment or intent to provide funding to any such entities.

Capital Expenditure Requirements

At June 30, 2018 and December 31, 2017, we had no material commitments for capital expenditures.

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Dividends

To qualify as a REIT, we must pay annual dividends to our stockholders of at least 90% of our taxable income (subject to certain adjustments). We intend to pay regular quarterly dividends to our stockholders. Before we pay any dividend, we must first meet any operating requirements and scheduled debt service on our financing facilities and other debt payable.

Inflation

A significant portion of our assets and liabilities are interest rate sensitive in nature. As a result, interest rates and other factors influence our performance far more so than does inflation. Changes in interest rates do not necessarily correlate with inflation rates or changes in inflation rates. Our consolidated financial statements are prepared in accordance with GAAP and our distributions will be determined by our Board of Directors consistent with our obligation to distribute to our stockholders at least 90% of our REIT taxable income on an annual basis in order to maintain our REIT qualification; in each case, our activities and financial condition are measured with reference to historical cost or fair market value without considering inflation.

Other Matters

None.

Critical Accounting Policies and Estimates

We prepare our financial statements in accordance with accounting principles generally accepted in the United States, or GAAP, which requires the use of estimates and assumptions. Management has discussed and reviewed the development, selection, and disclosure of critical accounting estimates with the Company’s Audit Committee. Management believes that the most critical accounting policies and estimates, since these estimates require significant judgment, are interest income and other-than temporary impairment, or OTTI, on Non-Agency RMBS, the determination of the appropriate accounting model for Non-Agency RMBS, the impact of default and prepayment assumptions on RMBS, and fair value measurements. Financial results could be materially different if other methodologies were used or if management modified its assumptions.

For a discussion of the Company’s critical accounting policies and estimates, see “Critical Accounting Policies and Estimates” in Part II, Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations” included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017.

Recent Accounting Pronouncements

Refer to Note 2(e) in the Notes to Consolidated Financial Statements for a discussion of accounting guidance recently adopted by the Company or expected to be adopted by the Company in the future.

Item 3. Quantitative and Qualitative Disclosures about Market Risk

The primary components of our market risk are related to credit risk, interest rate risk, prepayment risk, market value risk and real estate risk. While we do not seek to avoid risk completely, we believe the risk can be quantified from historical experience and we seek to actively manage that risk, to earn sufficient compensation to justify taking those risks and to maintain capital levels consistent with the risks we undertake.

Credit Risk

We are subject to credit risk in connection with our investments in Non-Agency RMBS and residential mortgage loans and face more credit risk on assets we own which are rated below ‘‘AAA’’. The credit risk related to these investments pertains to the ability and willingness of the borrowers to pay, which is assessed before credit is granted or renewed and periodically reviewed throughout the loan or security term. We believe that residual loan credit quality, and thus the quality of our assets, is primarily determined by the borrowers’ credit profiles and loan characteristics.

Prior to acquisition, we or a third party performs an independent review of the mortgage file to assess the origination and servicing of the mortgage loan as well as our ability to enforce the contractual rights in the mortgage. Depending on the size of the loans, we may not review all of the loans in a pool, but rather a sample of loans for underwriting review based upon specific risk-based criteria such as property location, loan size, effective loan-to-value ratio, borrower’s credit score and other criteria we believe to be important indicators of credit risk. Additionally, we obtain representations and warranties from each seller with respect to the mortgage loans, including the origination and servicing of the mortgage loan as well as the enforceability of the

63

lien on the mortgaged property.  A seller who breaches these representations and warranties in making a loan that we purchase may be obligated to repurchase the loan from us. We use compensating factors such as liquid assets, low loan to value ratios and regional unemployment statistics in evaluating loans. Our resources include a proprietary portfolio management system, as well as third party software systems. We may utilize a third party due diligence firm to perform an independent underwriting review to ensure compliance with existing guidelines. In addition to statistical sampling techniques, we create adverse credit and valuation samples, which we individually review. We reject loans that fail to conform to our standards and do not meet our underwriting criteria. Once we own a loan, our surveillance process includes ongoing analysis through our proprietary data and servicer files.

Additionally, the Non-Agency RMBS and other ABS which we acquire for our portfolio are reviewed by us to ensure that they satisfy our risk based criteria. Our review of Non-Agency RMBS and other ABS includes utilizing a proprietary portfolio management system. Our review of Non-Agency RMBS and other ABS is based on quantitative and qualitative analysis of the risk-adjusted returns on Non-Agency RMBS and other ABS. This analysis includes an evaluation of the collateral characteristics supporting the RMBS such as borrower payment history, credit profiles, geographic concentrations, credit enhancement, seasoning, and other pertinent factors.

Interest Rate Risk

Interest rate risk is highly sensitive to many factors, including governmental, monetary and tax policies, domestic and international economic and political considerations and other factors beyond our control. We are subject to interest rate risk in connection with our investments and our related debt obligations, which are generally repurchase agreements, warehouse facilities and securitization/re-securitization trusts. Our repurchase agreements and warehouse facilities may be of limited duration that is periodically refinanced at current market rates. We intend to mitigate this risk through utilization of derivative contracts, primarily interest rate swap agreements, swaptions, futures and mortgage options.

Interest Rate Effects on Net Interest Income

Our operating results depend, in large part, on differences between the income from our investments and our borrowing costs. Most of our warehouse facilities and repurchase agreements provide financing based on a floating rate of interest calculated on a fixed spread over LIBOR. The fixed spread varies depending on the type of underlying asset which collateralizes the financing. During periods of rising interest rates, the borrowing costs associated with our investments tend to increase while the income earned on our investments may remain substantially unchanged or decrease. This will result in a narrowing of the net interest spread between the related assets and borrowings and may even result in losses. Further, during this portion of the interest rate and credit cycles, defaults could increase and result in credit losses to us, which could adversely affect our liquidity and operating results. Such delinquencies or defaults could also have an adverse effect on the spread between interest-earning assets and interest-bearing liabilities. Hedging techniques are partly based on assumed levels of prepayments of our fixed-rate and hybrid adjustable-rate mortgage loans and RMBS. If prepayments are slower or faster than assumed, the life of the mortgage loans and RMBS will be longer or shorter, which would reduce the effectiveness of any hedging strategies we may use and may cause losses on such transactions.

Interest Rate Effects on Fair Value

Another component of interest rate risk is the effect changes in interest rates will have on the fair value of the assets we acquire. We face the risk that the fair value of our assets will increase or decrease at different rates than that of our liabilities, including our hedging instruments. We primarily assess our interest rate risk by estimating the duration of our assets compared to the duration of our liabilities and hedges. Duration essentially measures the market price volatility of financial instruments as interest rates change. We generally calculate duration using various financial models and empirical data. Different models and methodologies can produce different duration numbers for the same securities.

It is important to note that the impact of changing interest rates on fair value can change significantly when interest rates change beyond 100 basis points from current levels. Therefore, the volatility in the fair value of our assets could increase significantly when interest rates change beyond 100 basis points. In addition, other factors impact the fair value of our interest rate-sensitive investments and hedging instruments, such as the shape of the yield curve, market expectations as to future interest rate changes and other market conditions. Accordingly, in the event of changes in actual interest rates, the change in the fair value of our assets would likely differ from that shown below and such difference might be material and adverse to our stockholders.

Interest Rate Cap Risk

We may also invest in adjustable-rate mortgage loans and RMBS. These are mortgages or RMBS in which the underlying mortgages are typically subject to periodic and lifetime interest rate caps and floors, which limit the amount by which the

64

security’s interest yield may change during any given period. However, our borrowing costs pursuant to our financing agreements will not be subject to similar restrictions. Therefore, in a period of increasing interest rates, interest rate costs on our borrowings could increase without limitation by caps, while the interest-rate yields on our adjustable-rate mortgage loans and RMBS would effectively be limited. This problem will be magnified to the extent we acquire adjustable-rate RMBS that are not based on mortgages which are fully indexed. In addition, the mortgages or the underlying mortgages in an RMBS may be subject to periodic payment caps that result in some portion of the interest being deferred and added to the principal outstanding. This could result in our receipt of less cash income on our adjustable-rate mortgages or RMBS than we need in order to pay the interest cost on our related borrowings. These factors could lower our net interest income or cause a net loss during periods of rising interest rates, which would harm our financial condition, cash flows and results of operations.

Interest Rate Mismatch Risk

We fund a substantial portion of our acquisitions of RMBS with borrowings that, after the effect of hedging, have interest rates based on indices and re-pricing terms similar to, but of somewhat shorter maturities than, the interest rate indices and re-pricing terms of the mortgages and RMBS. In most cases the interest rate indices and re-pricing terms of our mortgage assets and our funding sources will not be identical, thereby creating an interest rate mismatch between assets and liabilities. Our cost of funds would likely rise or fall more quickly than would our earnings rate on assets. During periods of changing interest rates, such interest rate mismatches could negatively impact our financial condition, cash flows and results of operations. To mitigate interest rate mismatches, we may utilize the hedging strategies discussed above. Our analysis of risks is based on our experience, estimates, models and assumptions. These analyses rely on models which utilize estimates of fair value and interest rate sensitivity. Actual economic conditions or implementation of investment decisions by our management may produce results that differ significantly from the estimates and assumptions used in our models and the projected results shown in this Form 10-Q.

Our profitability and the value of our portfolio (including derivatives) may be adversely affected during any period as a result of changing interest rates. The following table quantifies the potential changes in net interest income and portfolio value for our Agency MBS portfolio and related swaptions, Treasury futures and $5.1 billion of our swap portfolio, interest rates go up or down 50 and 100 basis points, assuming parallel movements in the yield curves. All changes in income and value are measured as percentage changes from the projected net interest income and portfolio value at the base interest rate scenario. The base interest rate scenario assumes interest rates at June 30, 2018 and various estimates regarding prepayment and all activities are made at each level of rate change. Actual results could differ significantly from these estimates.

	June 30, 2018
Change in Interest Rate	Projected Percentage Change in Net Interest Income (1)		Projected Percentage Change in Portfolio Value with Effect of Interest Rate Swaps and Other Hedging Transactions (2)
-100 Basis Points	1.00	%	(0.01	)%
-50 Basis Points	1.65	%	0.23	%
Base Interest Rate	—		—
+50 Basis Points	(6.02	)%	(0.61	)%
+100 Basis Points	(14.19	)%	(1.50	)%

(1) Change in annual economic net interest income. Includes interest expense on interest rate swaps.

(2) Projected Percentage Change in Portfolio Value is based on instantaneous moves in interest rates.

Prepayment Risk

As we receive prepayments of principal on these investments, premiums and discounts on such investments will be amortized or accreted into interest income. In general, an increase in prepayment rates will accelerate the amortization of purchase premiums, thereby reducing the interest income earned on the investments. Conversely, discounts on such investments are accelerated and accreted into interest income increasing interest income.

Extension Risk

Management computes the projected weighted-average life of our investments based on assumptions regarding the rate at which the borrowers will prepay the underlying mortgages. In general, when fixed-rate or hybrid adjustable-rate mortgage loans or RMBS are acquired via borrowings, we may, but are not required to, enter into an interest rate swap agreement or other hedging instrument that attempts to fix our borrowing costs for a period close to the anticipated average life of the fixed-rate portion of the related assets. This strategy is designed to protect us from rising interest rates as the borrowing costs are managed

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to maintain a net interest spread for the duration of the fixed-rate portion of the related assets. However, if prepayment rates decrease in a rising interest rate environment, the life of the fixed-rate portion of the related assets could extend beyond the term of the swap agreement or other hedging instrument. This could have a negative impact on our results from operations, as borrowing costs would no longer be fixed after the end of the hedging instrument while the income earned on the fixed and hybrid adjustable-rate assets would remain fixed. In extreme situations, we may be forced to sell assets to maintain adequate liquidity, which could cause us to incur losses.

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Basis Risk

We seek to limit our interest rate risk by hedging portions of our portfolio through interest rate swaps and other types of hedging instruments. Interest rate swaps are generally tied to underlying Treasury benchmark interest rates. Basis risk relates to the risk of the spread between our RMBS and underlying hedges widening. Such a widening may cause a decline in the fair value of our RMBS that is greater than the increase in fair value of our hedges resulting in a net decline in book value. The widening of mortgage-backed securities yields and Treasury benchmark interest rates may result from a variety of factors such as anticipated or actual monetary policy actions or other market factors.

Market Risk

Market Value Risk

Certain of our available-for-sale securities are reflected at their estimated fair value with unrealized gains and losses excluded from earnings and reported in other comprehensive income if no OTTI has been recognized in earnings. The estimated fair value of these securities fluctuates primarily due to changes in interest rates, prepayment speeds, market liquidity, credit quality, and other factors. Generally, in a rising interest rate environment, the estimated fair value of these securities would be expected to decrease; conversely, in a decreasing interest rate environment, the estimated fair value of these securities would be expected to increase. As market volatility increases or liquidity decreases, the fair value of our investments may be adversely impacted.

Real Estate Market Risk

We own assets secured by real property and may own real property directly in the future. Residential property values are subject to volatility and may be affected adversely by a number of factors, including, but not limited to, national, regional and local economic conditions and unemployment (which may be adversely affected by industry slowdowns and other factors); local real estate conditions (such as an oversupply of housing); changes or continued weakness in specific industry segments; construction quality, age and design; demographic factors; natural disasters and other acts of God; and retroactive changes to building or similar codes. In addition, decreases in property values reduce the value of the collateral and the potential proceeds available to a borrower to repay our loans, which could also cause us to incur losses.

Risk Management

Subject to maintaining our REIT status, we seek to manage risk exposure to protect our portfolio of residential mortgage loans, RMBS, and other assets and related debt against the effects of major interest rate changes. We generally seek to manage risk by:

• monitoring and adjusting, if necessary, the reset index and interest rate related to our RMBS and our financings;

• attempting to structure our financing agreements to have a range of different maturities, terms, amortizations and interest rate adjustment periods;

• using derivatives, financial futures, swaps, options, caps, floors and forward sales to adjust the interest rate sensitivity of our investments and our borrowings;

• using securitization financing to lower average cost of funds relative to short-term financing vehicles further allowing us to receive the benefit of attractive terms for an extended period of time in contrast to short term financing and maturity dates of the investments not included in the securitization; and

• actively managing, through assets selection, on an aggregate basis, the interest rate indices, interest rate adjustment periods, and gross reset margins of our investments and the interest rate indices and adjustment periods of our financings.

Our efforts to manage our assets and liabilities are concerned with the timing and magnitude of the re-pricing of assets and liabilities. We attempt to control risks associated with interest rate movements. Methods for evaluating interest rate risk include an analysis of our interest rate sensitivity “gap,” which is the difference between interest-earning assets and interest-bearing liabilities maturing or re-pricing within a given time period. A gap is considered positive when the amount of interest-rate sensitive assets exceeds the amount of interest-rate sensitive liabilities. A gap is considered negative when the amount of interest-rate sensitive liabilities exceeds interest-rate sensitive assets. During a period of rising interest rates, a negative gap would tend to adversely affect net interest income, while a positive gap would tend to result in an increase in net interest income. During a period of falling interest rates, a negative gap would tend to result in an increase in net interest income, while a positive gap would tend to affect net interest income adversely. Because different types of assets and liabilities with the same or similar maturities may react differently to changes in overall market rates or conditions, changes in interest rates may affect net interest income positively or negatively even if an institution were perfectly matched in each maturity category.

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The following table sets forth the estimated maturity or re-pricing of our interest-earning assets and interest-bearing liabilities at June 30, 2018. The amounts of assets and liabilities shown within a particular period were determined in accordance with the contractual terms of the assets and liabilities, except adjustable-rate loans, and securities are included in the period in which their interest rates are first scheduled to adjust and not in the period in which they mature and includes the effect of the interest rate swaps. The interest rate sensitivity of our assets and liabilities in the table could vary substantially based on actual prepayments.

June 30, 2018
(dollars in thousands)
	Within 3 Months			3-12 Months			1 Year to 3 Years			Greater than 3 Years			Total
Rate sensitive assets	$	377,046		$	896,404		$	—		$	21,571,402		$	22,844,852
Cash equivalents	90,671			—			—			—			90,671
Total rate sensitive assets	$	467,717		$	896,404		$	—		$	21,571,402		$	22,935,523
Rate sensitive liabilities	11,967,179			6,500,237			—			—			18,467,416
Interest rate sensitivity gap	$	(11,499,462	)	$	(5,603,833	)	$	—		$	21,571,402		$	4,468,107
Cumulative rate sensitivity gap	$	(11,499,462	)	$	(17,103,295	)	$	(17,103,295	)	$	4,468,107
Cumulative interest rate sensitivity gap as a percentage of total rate sensitive assets	(50		)%	(75		)%	(75		)%	19		%

Our analysis of risks is based on our management’s experience, estimates, models and assumptions. These analyses rely on models which utilize estimates of fair value and interest rate sensitivity. Actual economic conditions or implementation of investment decisions by our management may produce results that differ significantly from the estimates and assumptions used in our models and the projected results shown in the above tables and in this Form 10-Q. These analyses contain certain forward-looking statements and are subject to the safe harbor statement set forth under the heading, “Special Note Regarding Forward-Looking Statements.”

Item 4.  Controls and Procedures

(a) Evaluation of Disclosure Controls and Procedures

As of the end of the period covered by this report, an evaluation of the effectiveness of the design and operation of the Company’s disclosure controls and procedures (as defined in Rule 13a-15(e) under the Securities Exchange Act of 1934) was performed under the supervision and with the participation of the Company’s senior management, including the Chief Executive Officer and the Chief Financial Officer. Based on that evaluation, the Company’s management, including the Chief Executive Officer and the Chief Financial Officer, concluded that the Company’s disclosure controls and procedures were effective as of the end of the period covered by this report.

(b) Changes in Internal Control over Financial Reporting

As required by Rule 13a-15(d) under the Exchange Act, the Company’s management, including its Chief Executive Officer and Chief Financial Officer, has evaluated the Company’s internal control over financial reporting to determine whether any changes occurred during the period covered by this quarterly report that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting. Based on that evaluation, there has been no such change during the second quarter of 2018.

Part II. Other Information

Item 1. Legal Proceedings

None.

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Item 1A. Risk Factors

Under “Part I — Item 1A — Risk Factors” of our 2017 Form 10-K, we set forth risk factors related to (i) risks associated with our investments, (ii) risks associated with our operations, (iii) risks associated with adverse developments in mortgage finance and credit markets, (iv) risks related to financing, (iv) risks related to accounting matters and our 1940 act exemption, (v) regulatory and legal risks, (vi) risks related to our capital stock and (vii) federal income tax risks. You should carefully consider the risk factors set forth in our 2017 Form 10-K. As of the date hereof, there have been no material changes to the risk factors set forth in our Form 10-K for the year ended December 31, 2017.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

In February 2018, our Board of Directors reauthorized $100 million under our share repurchase program (the “Repurchase Program”).

Pursuant to our Repurchase Program, during the first quarter of 2018, we repurchased approximately 883 thousand of its common stock at an average price of $16.81 per share for a total of $15 million.

We did not repurchase any common stock for the quarter ended June 30, 2018. A summary of the Company's repurchases of common stock for the six months ended June 30, 2018 is as follows:

	Total Number of Common Shares Repurchased	Average Price Paid per Share		Total Number of Shares Purchased As Part of Publicly Announced Plans or Programs	Approximate Dollar Value of the Purchase		Approximate Dollar Value of Shares That May Yet be Purchased Under the Plans or Programs
2/1/2018 - 2/28/2018	399,989	$	16.83	399,989	$	6,730,682	$	93,269,318
3/1/2018 - 3/31/2018	482,694	$	16.79	482,694	$	8,104,317	$	85,165,001
	882,683	$	16.81	882,683	$	14,834,999	$	85,165,001

Item 3. Defaults Upon Senior Securities

None.

Item 4. Mine Safety Disclosures

None.

Item 5. Other Information

None.

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Item 6. Exhibits

EXHIBIT INDEX
Exhibit Number	Description
31.1	Certification of Matthew Lambiase, Chief Executive Officer and President of the Registrant, pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2	Certification of Rob Colligan, Chief Financial Officer of the Registrant, pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1	Certification of Matthew Lambiase, Chief Executive Officer and President of the Registrant, pursuant to 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2	Certification of Rob Colligan, Chief Financial Officer of the Registrant, pursuant to 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS*	XBRL Instance Document
101.SCH*	XBRL Taxonomy Extension Schema Document
101.CAL*	XBRL Taxonomy Extension Calculation Linkbase Document
101.LAB*	XBRL Taxonomy Extension Labels Linkbase Document
101.PRE*	XBRL Taxonomy Extension Presentation Linkbase Document
101.DEF*	XBRL Taxonomy Extension Definition Linkbase Document

* This exhibit is being furnished rather than filed, and shall not be deemed incorporated by reference into any filing, in accordance with Item 601 of Regulation S-K

70

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.

CHIMERA INVESTMENT CORPORATION
	By:	/s/ Matthew Lambiase
		Matthew Lambiase
		(Chief Executive Officer and President
		and duly authorized officer of the registrant)
Date: August 2, 2018

	By:	/s/ Rob Colligan
		Rob Colligan
		(Chief Financial Officer
		and principal financial officer of the registrant)
Date: August 2, 2018

71

EX-31.1

CERTIFICATIONS

Exhibit 31.1

I, Matthew Lambiase, certify that:

1.     I have reviewed this quarterly report on Form 10-Q of Chimera Investment Corporation;

2.     Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.     Based on my knowledge, the consolidated financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.     The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f) for the registrant and have:

a.     Designed such disclosure controls and procedures or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.     Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.     Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.     Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.     The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a.     All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b.    Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

  Date: August 2, 2018

  /s/ Matthew Lambiase

  Matthew Lambiase

  Chief Executive Officer and President (Principal Executive Officer)

EX-31.2

CERTIFICATIONS

Exhibit 31.2

I, Rob Colligan, certify that:

1.     I have reviewed this quarterly report on Form 10-Q of Chimera Investment Corporation;

2.     Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.     Based on my knowledge, the consolidated financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.     The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f) for the registrant and have:

a.    Designed such disclosure controls and procedures or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.     Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.     Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.     Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.     The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a.     All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b.    Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

  Date: August 2, 2018

  /s/ Rob Colligan

  Rob Colligan

  Chief Financial Officer (Principal Financial Officer)

EX-32.1

Exhibit 32.1

CHIMERA INVESTMENT CORPORATION

520 MADISON AVE 32nd FLOOR

NEW YORK, NEW YORK 10022

CERTIFICATION

PURSUANT TO SECTION 906 OF THE

SARBANES-OXLEY ACT OF 2002, 18 U.S.C. SECTION 1350

In connection with the quarterly report on Form 10-Q of Chimera Investment Corporation (the “Company”) for the period ended June 30, 2018 to be filed with Securities and Exchange Commission on or about the date hereof (the “Report”), I, Matthew Lambiase, President and Chief Executive Officer of the Company, certify, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350, that:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company at the dates of, and for the periods covered by, the Report.

It is not intended that this statement be deemed to be filed for purposes of the Securities Exchange Act of 1934.

/s/ Matthew Lambiase

Matthew Lambiase

Chief Executive Officer and President

  Date: August 2, 2018

EX-32.2

Exhibit 32.2

CHIMERA INVESTMENT CORPORATION

520 MADISON AVE 32nd FLOOR

NEW YORK, NEW YORK 10022

CERTIFICATION

PURSUANT TO SECTION 906 OF THE

SARBANES-OXLEY ACT OF 2002, 18 U.S.C. SECTION 1350

In connection with the quarterly report on Form 10-Q of Chimera Investment Corporation (the “Company”) for the period ended June 30, 2018 to be filed with Securities and Exchange Commission on or about the date hereof (the “Report”), I, Rob Colligan, Chief Financial Officer of the Company, certify, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350, that:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company at the dates of, and for the periods covered by, the Report.

It is not intended that this statement be deemed to be filed for purposes of the Securities Exchange Act of 1934.

/s/ Rob Colligan

Rob Colligan

Chief Financial Officer

  Date: August 2, 2018

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Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2018	Jul. 31, 2018
Document And Entity Information [Abstract]
Entity Registrant Name	CHIMERA INVESTMENT CORP
Trading Symbol	CIM
Entity Central Index Key	0001409493
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Jun. 30, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding		187,006,450

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CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION - USD ($) $ in Thousands		Jun. 30, 2018	Dec. 31, 2017
Assets:
Cash and cash equivalents		$ 90,671	$ 63,569
Non-Agency RMBS, at fair value		2,593,422	2,851,316
Agency MBS, at fair value		6,989,329	4,364,828
Loans held for investment, at fair value		13,246,521	13,678,263
Accrued interest receivable		106,877	100,789
Other assets		106,594	114,391
Derivatives, at fair value, net		129,341	48,914
Total assets	[1]	23,262,755	21,222,070
Liabilities:
Repurchase agreements ($10.6 billion and $8.8 billion, pledged as collateral, respectively)		9,127,048	7,250,452
Securitized debt, collateralized by Non-Agency RMBS ($1.3 billion and $1.6 billion pledged as collateral, respectively)		179,742	205,780
Securitized debt at fair value, collateralized by loans held for investment ($13.0 billion and $13.3 billion pledged as collateral, respectively)		9,340,368	9,388,657
Payable for investments purchased		784,425	567,440
Accrued interest payable		71,405	61,888
Dividends payable		95,807	95,365
Accounts payable and other liabilities		13,818	17,191
Derivatives, at fair value, net		0	320
Total liabilities	[1]	19,612,613	17,587,093
Commitments and Contingencies (See Note 15)
Stockholders' Equity:
Common stock: par value $0.01 per share; 300,000,000 shares authorized, 187,006,450 and 187,809,288 shares issued and outstanding, respectively		1,870	1,878
Additional paid-in-capital		3,816,631	3,826,691
Accumulated other comprehensive income		671,651	796,902
Cumulative earnings		3,324,968	2,967,852
Cumulative distributions to stockholders		(4,165,166)	(3,958,534)
Total stockholders' equity		3,650,142	3,634,977
Total liabilities and stockholders' equity		23,262,755	21,222,070
Preferred Class A
Stockholders' Equity:
Preferred Stock, par value of $0.01 per share, 100,000,000 shares authorized:		58	58
Preferred Class B
Stockholders' Equity:
Preferred Stock, par value of $0.01 per share, 100,000,000 shares authorized:		$ 130	$ 130

[1] The Company's consolidated statements of financial condition include assets of consolidated variable interest entities (“VIEs”) that can only be used to settle obligations and liabilities of the VIE for which creditors do not have recourse to the primary beneficiary (Chimera Investment Corporation). As of June 30, 2018 and December 31, 2017, total assets of consolidated VIEs were $14,455,778 and $14,987,464, respectively, and total liabilities of consolidated VIEs were $9,559,149 and $9,631,820, respectively. See Note 8 for further discussion.

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CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Parenthetical) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Preferred Stock, par value (usd per share)	$ 0.01	$ 0.01
Preferred Stock, shares authorized (shares)	100,000,000	100,000,000
Common stock, par value (usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (shares)	300,000,000	300,000,000
Common stock, shares issued (shares)	187,006,450	187,809,288
Common stock, shares outstanding (shares)	187,006,450	187,809,288
Repurchase Agreements | Residential Mortgage-Backed Securities
Securities pledged as collateral	$ 10,626,383,000	$ 8,788,680,000
Variable Interest Entities, Primary Beneficiary, Aggregated Disclosure
Assets	14,455,778,000	14,987,464,000
Liabilities	9,559,149,000	9,631,820,000
Securitized Loans | Non-agency MBS
Securities pledged as collateral	1,300,000,000	1,600,000,000
Securitized Loans | Loans Held for Investment at Fair Value
Securities pledged as collateral	$ 13,000,000,000	$ 13,300,000,000
Preferred Class A
Preferred Stock, dividend rate (percent)	8.00%	8.00%
Preferred Stock, shares issued (shares)	5,800,000	5,800,000
Preferred Stock, shares outstanding (shares)	5,800,000	5,800,000
Preferred Stock, liquidation preference	$ 145,000	$ 145,000
Preferred Class B
Preferred Stock, dividend rate (percent)	8.00%	8.00%
Preferred Stock, shares issued (shares)	13,000,000	13,000,000
Preferred Stock, shares outstanding (shares)	13,000,000	13,000,000
Preferred Stock, liquidation preference	$ 325,000	$ 325,000

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CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Net interest income:
Interest income	[1]	$ 306,436	$ 288,644	$ 603,567	$ 539,988
Interest expense	[2]	161,266	137,955	310,518	248,186
Net interest income		145,170	150,689	293,049	291,802
Other-than-temporary impairments:
Total other-than-temporary impairment losses		(805)	(749)	(1,099)	(3,462)
Portion of loss recognized in other comprehensive income		(8,326)	(12,760)	(9,190)	(28,748)
Net other-than-temporary credit impairment losses		(9,131)	(13,509)	(10,289)	(32,210)
Other investment gains (losses):
Net unrealized gains (losses) on derivatives		25,895	5,802	107,314	10,698
Realized gains (losses) on terminations of interest rate swaps		0	(16,143)	0	(16,143)
Net realized gains (losses) on derivatives		(1,393)	(11,481)	11,693	(20,839)
Net gains (losses) on derivatives		24,502	(21,822)	119,007	(26,284)
Net unrealized gains (losses) on financial instruments at fair value		(18,364)	67,762	(3,898)	140,005
Net realized gains (losses) on sales of investments		2,167	4,541	2,167	9,708
Gains (losses) on extinguishment of debt		387	(48,014)	10,057	(48,014)
Total other gains (losses)		8,692	2,467	127,333	75,415
Other expenses:
Compensation and benefits		8,689	7,671	17,100	15,227
General and administrative expenses		5,860	4,585	11,349	8,625
Servicing fees		9,943	10,890	21,277	20,478
Deal expenses		2,095	1,345	3,183	12,698
Total other expenses		26,587	24,491	52,909	57,028
Income before income taxes		118,144	115,156	357,184	277,979
Income taxes		36	139	68	155
Net income (loss)		118,108	115,017	357,116	277,824
Dividend on preferred stock		9,400	9,400	18,800	14,683
Net income (loss) available to common shareholders		$ 108,708	$ 105,617	$ 338,316	$ 263,141
Net income (loss) per share available to common shareholders:
Basic (usd per share)		$ 0.58	$ 0.56	$ 1.81	$ 1.40
Diluted (usd per share)		$ 0.58	$ 0.56	$ 1.80	$ 1.40
Weighted average number of common shares outstanding:
Basic (shares)		186,994,743	187,779,406	187,272,469	187,770,626
Diluted (shares)		187,422,145	188,142,551	187,738,443	188,169,093
Dividends declared per share of common stock (usd per share)		$ 0.50	$ 0.5	$ 1	$ 1

[1] Includes interest income of consolidated VIEs of $229,746 and $234,437 for the quarters ended June 30, 2018 and 2017, respectively and interest income of consolidated VIEs of $464,772 and $427,426 for the six months ended June 30, 2018 and 2017. See Note 8 to consolidated financial statements for further discussion.

[2] Includes interest expense of consolidated VIEs of $99,507 and $105,723 for the quarters ended June 30, 2018 and 2017, respectively and interest expense of consolidated VIEs of $199,121 and $188,407 for the six months ended June 30, 2018 and 2017. See Note 8 to consolidated financial statements for further discussion.

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CONSOLIDATED STATEMENTS OF OPERATIONS (Parenthetical) - Non Agency Residential Mortgage Backed Securities And Securitized Loans - Variable Interest Entities, Primary Beneficiary - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Interest income, assets of consolidated VIEs	$ 229,746	$ 234,437	$ 464,772	$ 427,426
Interest expense, non-recourse liabilities of VIEs	$ 99,507	$ 105,723	$ 199,121	$ 188,407

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Comprehensive income (loss):
Net income (loss)	$ 118,108	$ 115,017	$ 357,116	$ 277,824
Other comprehensive income:
Unrealized gains (losses) on available-for-sale securities, net	(42,341)	41,655	(131,157)	37,744
Reclassification adjustment for net losses included in net income for other-than-temporary credit impairment losses	9,131	13,509	10,289	32,210
Reclassification adjustment for net realized losses (gains) included in net income	(4,383)	(2,591)	(4,383)	(7,777)
Other comprehensive income (loss)	(37,593)	52,573	(125,251)	62,177
Comprehensive income (loss) before preferred stock dividends	80,515	167,590	231,865	340,001
Dividends on preferred stock	9,400	9,400	18,800	14,683
Comprehensive income (loss) available to common stock shareholders	$ 71,115	$ 158,190	$ 213,065	$ 325,318

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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock Par Value	Additional Paid-in Capital	Accumulated Other Comprehensive Income	Cumulative Earnings	Cumulative Distributions to Stockholders	Series A Preferred Stock Par Value	Series A Preferred Stock Par Value Preferred Stock	Series B Preferred Stock Par Value	Series B Preferred Stock Par Value Preferred Stock
Beginning Balance at Dec. 31, 2016	$ 3,123,533	$ 1,877	$ 3,508,779	$ 718,106	$ 2,443,184	$ (3,548,471)		$ 58		$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	277,824				277,824
Other comprehensive income (loss)	62,177			62,177
Stock based compensation	1,603	1	1,602
Common dividends declared	(188,196)					(188,196)
Preferred dividends declared	(14,683)					(14,683)	$ (6,000)		$ (9,000)
Issuance of preferred stock	314,429		314,299							130
Ending Balance at Jun. 30, 2017	3,576,687	1,878	3,824,680	780,283	2,721,008	(3,751,350)		58		130
Beginning Balance at Dec. 31, 2017	3,634,977	1,878	3,826,691	796,902	2,967,852	(3,958,534)		58		130
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	357,116				357,116
Other comprehensive income (loss)	(125,251)			(125,251)
Repurchase of common stock	(14,834)	(8)	(14,826)
Stock based compensation	4,766		4,766
Common dividends declared	(187,832)					(187,832)
Preferred dividends declared	(18,800)					(18,800)	$ (6,000)		$ (13,000)
Ending Balance at Jun. 30, 2018	$ 3,650,142	$ 1,870	$ 3,816,631	$ 671,651	$ 3,324,968	$ (4,165,166)		$ 58		$ 130

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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash Flows From Operating Activities:
Net income	$ 357,116	$ 277,824
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
(Accretion) amortization of investment discounts/premiums, net	11,301	(8,397)
Accretion (amortization) of deferred financing costs and securitized debt discounts/premiums, net	(5,911)	8,433
Amortization of swaption premium	1,157	4,385
Net unrealized losses (gains) on derivatives	(107,314)	(10,698)
Margin (paid) received on derivatives	19,171	2,161
Net unrealized losses (gains) on financial instruments at fair value	3,898	(140,005)
Net realized losses (gains) on sales of investments	(2,167)	(9,708)
Net other-than-temporary credit impairment losses	10,289	32,210
(Gain) loss on extinguishment of debt	(10,057)	48,014
Equity-based compensation expense	4,766	1,603
Changes in operating assets:
Decrease (increase) in accrued interest receivable, net	(6,088)	(18,382)
Decrease (increase) in other assets	23,711	(7,121)
Changes in operating liabilities:
Increase (decrease) in accounts payable and other liabilities	(3,374)	(3,249)
Increase (decrease) in accrued interest payable, net	9,518	6,186
Net cash provided by (used in) operating activities	306,016	183,256
Cash Flows From Investing Activities:
Net cash provided by (used in) investing activities	(1,892,368)	(3,342,632)
Cash Flows From Financing Activities:
Proceeds from repurchase agreements	31,403,682	16,994,467
Payments on repurchase agreements	(29,525,962)	(16,341,218)
Net proceeds from preferred stock offerings	0	314,429
Payments on repurchase of common stock	(14,834)	0
Proceeds from securitized debt borrowings, collateralized by loans held for investment	1,170,009	3,532,918
Payments on securitized debt borrowings, collateralized by loans held for investment	(1,188,154)	(1,074,027)
Payments on securitized debt borrowings, collateralized by Non-Agency RMBS	(25,097)	(71,089)
Common dividends paid	(187,390)	(187,943)
Preferred dividends paid	(18,800)	(17,132)
Net cash provided by (used in) financing activities	1,613,454	3,150,405
Net increase (decrease) in cash and cash equivalents	27,102	(8,971)
Cash and cash equivalents at beginning of period	63,569	177,714
Cash and cash equivalents at end of period	90,671	168,743
Supplemental disclosure of cash flow information:
Interest received	608,779	513,210
Interest paid	306,911	233,568
Non-cash investing activities:
Payable for investments purchased	784,425	1,046,720
Net change in unrealized gain (loss) on available-for sale securities	(125,251)	62,177
Non-cash financing activities:
Common dividends declared, not yet paid	95,807	94,809
Agency MBS portfolio
Cash Flows From Investing Activities:
Purchases	(2,764,785)	(260,518)
Sales	172	141,191
Principal payments	205,093	220,882
Non-agency MBS
Cash Flows From Investing Activities:
Purchases	(70,043)	(5,663)
Sales	10,407	5,045
Principal payments	327,923	263,804
Loans held for investment:
Cash Flows From Investing Activities:
Sales	379,002	0
Purchases	(924,283)	(4,515,440)
Principal payments	$ 944,146	$ 808,067

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Organization

6 Months Ended

Jun. 30, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization

Organization

Chimera Investment Corporation (the “Company”) was organized in Maryland on June 1, 2007. The Company commenced operations on November 21, 2007 when it completed its initial public offering. The Company elected to be taxed as a real estate investment trust (“REIT”) under the Internal Revenue Code of 1986, as amended, and regulations promulgated thereunder (the “Code”).

The Company conducts its operations through various subsidiaries including subsidiaries it treats as taxable REIT subsidiaries (“TRS”). In general, a TRS may hold assets and engage in activities that the Company cannot hold or engage in directly and generally may engage in any real estate or non-real estate related business. The Company currently has nine wholly owned direct subsidiaries: Chimera RMBS Whole Pool LLC, and Chimera RMBS LLC formed in June 2009; CIM Trading Company LLC (“CIM Trading”), formed in July 2010; Chimera Funding TRS LLC (“CIM Funding TRS”), a TRS formed in October 2013, Chimera CMBS Whole Pool LLC and Chimera RMBS Securities LLC formed in March 2015; Chimera Insurance Company, LLC formed in July 2015; Chimera RR Holdings LLC formed in April 2016, and Anacostia LLC, a TRS formed in June 2018.

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Summary of the Significant Accounting Policies

6 Months Ended

Jun. 30, 2018

Accounting Policies [Abstract]

Summary of the Significant Accounting Policies

Summary of the Significant Accounting Policies

(a) Basis of Presentation and Consolidation

The accompanying consolidated financial statements and related notes of the Company have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”). In the opinion of management, all adjustments considered necessary for a fair presentation of the Company's financial position, results of operations and cash flows have been included. Certain prior period amounts have been reclassified to conform to the current period's presentation.

The consolidated financial statements include, the Company’s accounts, the accounts of its wholly-owned subsidiaries, and variable interest entities (“VIEs”) in which the Company is the primary beneficiary. All intercompany balances and transactions have been eliminated in consolidation.

The Company uses securitization trusts considered to be VIEs in its securitization and re-securitization transactions. VIEs are defined as entities in which equity investors (i) do not have the characteristics of a controlling financial interest, or (ii) do not have sufficient equity at risk for the entity to finance its activities without additional subordinated financial support from other parties. The entity that consolidates a VIE is known as its primary beneficiary, and is generally the entity with (i) the power to direct the activities that most significantly impact the VIEs’ economic performance, and (ii) the right to receive benefits from the VIE or the obligation to absorb losses of the VIE that could be significant to the VIE. For VIEs that do not have substantial on-going activities, the power to direct the activities that most significantly impact the VIEs’ economic performance may be determined by an entity’s involvement with the design and structure of the VIE.

The trusts are structured as entities that receive principal and interest on the underlying collateral and distribute those payments to the security holders. The assets held by the securitization entities are restricted in that they can only be used to fulfill the obligations of the securitization entity. The Company’s risks associated with its involvement with these VIEs are limited to its risks and rights as a holder of the security it has retained.

Determining the primary beneficiary of a VIE requires judgment. The Company determined that for the securitizations it consolidates, its ownership provides the Company with the obligation to absorb losses or the right to receive benefits from the VIE that could be significant to the VIE. In addition, the Company has the power to direct the activities of the VIEs that most significantly impact the VIEs’ economic performance (“power”) such as rights to direct servicer activity or the Company was determined to have power in connection with its involvement with the structure and design of the VIE.

The Company’s interest in the assets held by these securitization vehicles, which are consolidated on the Company’s Statements of Financial Condition, is restricted by the structural provisions of these trusts, and a recovery of the Company’s investment in the vehicles will be limited by each entity’s distribution provisions. The liabilities of the securitization vehicles, which are also consolidated on the Company’s Statements of Financial Condition, are non-recourse to the Company, and can only be satisfied from each securitization vehicle’s respective asset pool.

The assets of securitization entities are comprised of residential mortgage backed securities (“RMBS”) or residential mortgage loans. See Notes 3, 4 and 8 for further discussion of the characteristics of the securities and loans in the Company’s portfolio.

(b) Statements of Financial Condition Presentation

The Company’s Consolidated Statements of Financial Condition include both the Company’s direct assets and liabilities and the assets and liabilities of consolidated securitization vehicles. Assets of each consolidated VIE can only be used to satisfy the obligations of that VIE, and the liabilities of consolidated VIEs are non-recourse to the Company. The Company is not obligated to provide, nor does it intend to provide, any financial support to these consolidated securitization vehicles. The notes to the consolidated financial statements describe the Company’s assets and liabilities including the assets and liabilities of consolidated securitization vehicles. See Note 8 for additional information related to the Company’s investments in consolidated securitization vehicles.

(c) 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 disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Although the Company’s estimates contemplate current conditions and how it expects them to change in the future, it is reasonably possible that actual conditions could be materially different than anticipated in those estimates, which could have a material adverse impact on the Company’s results of operations and its financial condition. Management has made significant estimates including in accounting for income recognition and OTTI on Agency and Non-Agency RMBS and IO MBS (Note 3), valuation of Agency MBS and Non-Agency RMBS (Notes 3 and 5), residential mortgage loans (Note 4), securitized debt (Note 7) and derivative instruments (Notes 5 and 9). Actual results could differ materially from those estimates.

(d) Significant Accounting Policies

There have been no significant changes to the Company's accounting policies included in Note 2 to the consolidated financial statements of the Company’s Form 10-K for the year ended December 31, 2017, other than the significant accounting policies disclosed below.

Income Taxes

The Company does not have any unrecognized tax positions that would affect its financial statements or require disclosure. No accruals for penalties and interest were necessary as of June 30, 2018 or December 31, 2017.

Fair Value Disclosure

A complete discussion of the methodology utilized by the Company to estimate the fair value of its financial instruments is included in Note 5 to these consolidated financial statements.

(e) Recent Accounting Pronouncements

Income Statement - Reporting Comprehensive Income - (Topic 220)

In February 2018, the FASB issued ASU No. 2018-02, Income Statement - Reporting Comprehensive Income - Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. The amendments in this update allow a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act. Consequently, the amendments eliminate the stranded tax effects resulting from the Tax Cuts and Jobs Act and will improve the usefulness of information reported to financial statement users. However, because the amendments only relate to the reclassification of the income tax effects of the Tax Cuts and Jobs Act, the underlying guidance that requires that the effect of a change in tax laws or rates be included in income from continuing operations is not affected. The amendments in this Update also require certain disclosures about stranded tax effects. The guidance in the ASU is effective for the Company as of January 1, 2019. Early adoption is allowed. The Company is not planning to early adopt and is currently evaluating what impact this update will have on the consolidated financial statements.

Derivatives and Hedging - Targeted improvements to Accounting for Hedging Activities (Topic 815)

In August 2017, the FASB issued ASU No. 2017-12, Derivatives and Hedging - Targeted improvements to Accounting for Hedging Activities. This update is issued with the objective of improving the financial reporting of hedging relationships to better portray the economic results of an entity’s risk management activities in its financial statements. In addition, the amendments in this update make certain targeted improvements to simplify the application of the hedge accounting guidance in current GAAP. The guidance in the ASU is effective for the Company as of January 1, 2019. Early adoption is allowed. The Company is not planning to early adopt and is currently evaluating what impact this update will have on the consolidated financial statements.

Financial Instruments - Credit Losses - (Topic 326)

In June 2016, the FASB issued ASU No. 2016-13, Measurement of Credit Losses on Financial Instruments. This update replaces the current model for recognizing credit losses from an incurred credit loss model to a current expected credit loss (CECL) model for instruments measured at amortized cost and requires entities to record allowances for available-for-sale (AFS) debt securities when the fair value of an AFS debt security is below the amortized cost of the asset rather than reduce the carrying amount, as the Company does under the current OTTI model. This update also simplifies the accounting model for purchased credit-impaired debt securities and loans. The changes in the allowances created in accordance with this update will be recorded in earnings. The update also expands the disclosure requirements regarding the Company's assumptions, models, and methods for estimating the expected credit losses. In addition, the Company will disclose the amortized cost balance for each class of financial asset by credit quality indicator, disaggregated by the year of origination. The guidance in the ASU is effective for the Company as of January 1, 2020. Early adoption is allowed, beginning January 1, 2019. The standard requires entities to record a cumulative-effect adjustment to the statement of financial position as of the beginning of the first reporting period in which the guidance is effective. The Company is currently evaluating what impact this update will have on the consolidated financial statements.

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Mortgage-Backed Securities

6 Months Ended

Jun. 30, 2018

Investments, Debt and Equity Securities [Abstract]

Mortgage-Backed Securities

Mortgage-Backed Securities

The Company classifies its Non-Agency RMBS as senior, senior IO, subordinated, or subordinated IO. The Company also invests in residential, commercial and IO Agency MBS. Senior interests in Non-Agency RMBS are considered to be entitled to the first principal repayments in their pro-rata ownership interests at the acquisition date. The tables below present amortized cost, fair value and unrealized gain/losses of Company's MBS investments as of June 30, 2018 and December 31, 2017.

			June 30, 2018
			(dollars in thousands)
	Principal or Notional Value		Total Premium		Total Discount			Amortized Cost		Fair Value		Gross Unrealized Gains		Gross Unrealized Losses			Net Unrealized Gain/(Loss)
Non-Agency RMBS
Senior	$	2,522,667	$	628	$	(1,180,560	)	$	1,342,735	$	2,063,786	$	721,524	$	(473	)	$	721,051
Senior, interest-only	5,282,885		302,960		—			302,960		252,324		26,074		(76,710		)	(50,636		)
Subordinated	365,499		9,842		(170,202		)	205,139		266,830		61,963		(272		)	61,691
Subordinated, interest-only	206,557		9,279		—			9,279		10,482		1,830		(627		)	1,203
Agency MBS
Residential	4,527,730		167,342		—			4,695,072		4,612,920		9,528		(91,680		)	(82,152		)
Commercial	2,300,891		52,422		(4,509		)	2,348,804		2,273,508		944		(76,240		)	(75,296		)
Interest-only	3,010,512		109,938		—			109,938		102,901		954		(7,991		)	(7,037		)
Total	$	18,216,741	$	652,411	$	(1,355,271	)	$	9,013,927	$	9,582,751	$	822,817	$	(253,993	)	$	568,824

			December 31, 2017
			(dollars in thousands)
	Principal or Notional Value		Total Premium		Total Discount			Amortized Cost		Fair Value		Gross Unrealized Gains		Gross Unrealized Losses			Net Unrealized Gain/(Loss)
Non-Agency RMBS
Senior	$	2,733,926	$	540	$	(1,257,103	)	$	1,477,363	$	2,231,415	$	754,234	$	(182	)	$	754,052
Senior, interest-only	4,862,461		262,996		—			262,996		210,850		15,761		(67,907		)	(52,146		)
Subordinated	501,455		10,571		(177,206		)	334,820		401,225		66,704		(299		)	66,405
Subordinated, interest-only	201,378		7,369		—			7,369		7,826		902		(445		)	457
Agency MBS
Residential	2,227,128		123,245		—			2,350,373		2,322,180		5,706		(33,899		)	(28,193		)
Commercial	1,894,594		47,430		(4,685		)	1,937,339		1,938,281		17,041		(16,099		)	942
Interest-only	3,021,840		111,277		—			111,277		104,367		834		(7,744		)	(6,910		)
Total	$	15,442,782	$	563,428	$	(1,438,994	)	$	6,481,537	$	7,216,144	$	861,182	$	(126,575	)	$	734,607

The table below presents changes in accretable yield, or the excess of the security’s cash flows expected to be collected over the Company’s investment, solely as it pertains to the Company’s Non-Agency RMBS portfolio accounted for according to the provisions of ASC 310-30.

	For the Quarters Ended						For the Six Months Ended
	June 30, 2018			June 30, 2017			June 30, 2018			June 30, 2017
	(dollars in thousands)						(dollars in thousands)
Balance at beginning of period	$	1,293,996		$	1,513,416		$	1,303,590		$	1,550,110
Purchases	5,734			1,969			5,734			10,185
Yield income earned	(57,786		)	(67,750		)	(117,517		)	(136,577		)
Reclassification (to) from non-accretable difference	31,471			(62,059		)	81,496			(38,107		)
Sales and deconsolidation	(6,775		)	(2,388		)	(6,663		)	(2,423		)
Balance at end of period	$	1,266,640		$	1,383,188		$	1,266,640		$	1,383,188

The table below presents the outstanding principal balance and related amortized cost at June 30, 2018 and December 31, 2017 as it pertains to the Company’s Non-Agency RMBS portfolio accounted for according to the provisions of ASC 310-30.

	For the Six Months Ended		For the Year Ended
	June 30, 2018		December 31, 2017
	(dollars in thousands)
Outstanding principal balance:
Beginning of period	$	2,673,350	$	3,138,265
End of period	$	2,476,421	$	2,673,350
Amortized cost:
Beginning of period	$	1,381,839	$	1,695,079
End of period	$	1,249,140	$	1,381,839

The following tables present the gross unrealized losses and estimated fair value of the Company’s RMBS by length of time that such securities have been in a continuous unrealized loss position at June 30, 2018 and December 31, 2017. All securities in an unrealized loss position have been evaluated by the Company for OTTI as discussed in Note 2(d) of 2017, Form 10-K.

						June 30, 2018
						(dollars in thousands)
	Unrealized Loss Position for Less than 12 Months						Unrealized Loss Position for 12 Months or More						Total
	Estimated Fair Value		Unrealized Losses			Number of Securities	Estimated Fair Value		Unrealized Losses			Number of Securities	Estimated Fair Value		Unrealized Losses			Number of Securities
Non-Agency RMBS
Senior	$	43,709	$	(473	)	3	$	—	$	—		—	$	43,709	$	(473	)	3
Senior, interest-only	25,400		(4,391		)	31	103,442		(72,319		)	104	128,842		(76,710		)	135
Subordinated	1,016		(272		)	5	—		—			6	1,016		(272		)	11
Subordinated, interest-only	112		(18		)	1	704		(609		)	3	816		(627		)	4
Agency MBS
Residential	1,618,829		(23,966		)	36	1,318,668		(67,714		)	94	2,937,497		(91,680		)	130
Commercial	1,713,531		(60,698		)	506	321,813		(15,542		)	114	2,035,344		(76,240		)	620
Interest-only	12,375		(689		)	7	48,211		(7,302		)	20	60,586		(7,991		)	27
Total	$	3,414,972	$	(90,507	)	589	$	1,792,838	$	(163,486	)	341	$	5,207,810	$	(253,993	)	930

						December 31, 2017
						(dollars in thousands)
	Unrealized Loss Position for Less than 12 Months						Unrealized Loss Position for 12 Months or More						Total
	Estimated Fair Value		Unrealized Losses			Number of Securities	Estimated Fair Value		Unrealized Losses			Number of Securities	Estimated Fair Value		Unrealized Losses			Number of Securities
Non-Agency RMBS
Senior	$	35,229	$	(182	)	1	$	—	$	—		—	$	35,229	$	(182	)	1
Senior, interest-only	28,129		(1,724		)	27	120,120		(66,183		)	120	148,249		(67,907		)	147
Subordinated	235		(38		)	7	6,261		(261		)	5	6,496		(299		)	12
Subordinated, interest-only	—		—			—	945		(445		)	3	945		(445		)	3
Agency MBS
Residential	660,103		(5,197		)	21	1,471,464		(28,702		)	93	2,131,567		(33,899		)	114
Commercial	830,889		(11,695		)	176	161,980		(4,404		)	91	992,869		(16,099		)	267
Interest-only	15,142		(641		)	7	57,875		(7,103		)	24	73,017		(7,744		)	31
Total	$	1,569,727	$	(19,477	)	239	$	1,818,645	$	(107,098	)	336	$	3,388,372	$	(126,575	)	575

At June 30, 2018, the Company did not intend to sell any of its RMBS that were in an unrealized loss position, and it was not more likely than not that the Company would be required to sell these RMBS before recovery of their amortized cost basis, which may be at their maturity. With respect to RMBS held by consolidated VIEs, the ability of any entity to cause the sale by the VIE prior to the maturity of these RMBS is either expressly prohibited, not probable, or is limited to specified events of default, none of which have occurred as of June 30, 2018.

Gross unrealized losses on the Company’s Agency residential and commercial MBS (excluding Agency MBS which are reported at fair value with changes in fair value recorded in earnings) were $111 million and $41 million as of June 30, 2018 and December 31, 2017, respectively. Given the inherent credit quality of Agency MBS, the Company does not consider any of the current impairments on its Agency MBS to be credit related. In evaluating whether it is more likely than not that it will be required to sell any impaired security before its anticipated recovery, which may be at their maturity, the Company considers the significance of each investment, the amount of impairment, the projected future performance of such impaired securities, as well as the Company’s current and anticipated leverage capacity and liquidity position. Based on these analyses, the Company determined that at June 30, 2018 and December 31, 2017, unrealized losses on its Agency MBS were temporary.

Gross unrealized losses on the Company’s Non-Agency RMBS (excluding Non-Agency MBS which are reported at fair value with changes in fair value recorded in earnings) were $745 thousand and $283 thousand at June 30, 2018 and December 31, 2017, respectively. Based upon the most recent evaluation, the Company does not consider these unrealized losses to be indicative of OTTI and does not believe that these unrealized losses are credit related, but rather are due to other factors. The Company has reviewed its Non-Agency RMBS that are in an unrealized loss position to identify those securities with losses that are other-than-temporary based on an assessment of changes in cash flows expected to be collected for such RMBS, which considers recent bond performance and expected future performance of the underlying collateral.

A summary of the OTTI included in earnings for the quarters and six months ended June 30, 2018 and 2017 are presented below.

	For the Quarter Ended						For the Six Months Ended
	June 30, 2018			June 30, 2017			June 30, 2018			June 30, 2017
	(dollars in thousands)						(dollars in thousands)
Total other-than-temporary impairment losses	$	(805	)	$	(749	)	$	(1,099	)	$	(3,462	)
Portion of loss recognized in other comprehensive income (loss)	(8,326		)	(12,760		)	(9,190		)	(28,748		)
Net other-than-temporary credit impairment losses	$	(9,131	)	$	(13,509	)	$	(10,289	)	$	(32,210	)

The following table presents a roll forward of the credit loss component of OTTI on the Company’s Non-Agency RMBS for which a portion of loss was recognized in OCI. The table delineates between those securities that are recognizing OTTI for the first time as opposed to those that have previously recognized OTTI.

	For the Quarters Ended						For the Six Months Ended
	June 30, 2018			June 30, 2017			June 30, 2018			June 30, 2017
	(dollars in thousands)
Cumulative credit loss beginning balance	$	586,056		$	558,229		$	591,521		$	556,485
Additions:
Other-than-temporary impairments not previously recognized	—			12,399			1,140			12,399
Reductions for securities sold or deconsolidated during the period	(4,775		)	—			(4,948		)	(7,443		)
Increases related to other-than-temporary impairments on securities with previously recognized other-than-temporary impairments	9,131			1,109			9,149			17,835
Reductions for increases in cash flows expected to be collected over the remaining life of the securities	(7,751		)	(99		)	(14,201		)	(7,638		)
Cumulative credit impairment loss ending balance	$	582,661		$	571,638		$	582,661		$	571,638

Cash flows generated to determine net other-than-temporary credit impairment losses recognized in earnings are estimated using significant unobservable inputs. The significant inputs used to measure the component of OTTI recognized in earnings for the Company’s Non-Agency RMBS for the periods reported are summarized as follows:

	For the Six Months Ended
	June 30, 2018	June 30, 2017
Loss Severity
Weighted Average	66%	62%
Range	34% - 132%	28% - 67%
60+ days delinquent
Weighted Average	23%	19%
Range	16% - 30%	11% - 25%
Credit Enhancement (1)
Weighted Average	32%	19%
Range	0% - 55%	0% - 38%
3 Month CPR
Weighted Average	10%	12%
Range	0% - 39%	2% - 24%
12 Month CPR
Weighted Average	8%	11%
Range	1% - 20%	4% - 19%

(1)Calculated as the combined credit enhancement to the Re-REMIC and underlying from each of their respective capital structures.

The following tables present a summary of unrealized gains and losses at June 30, 2018 and December 31, 2017.

			June 30, 2018
			(dollars in thousands)
	Gross Unrealized Gain Included in Accumulated Other Comprehensive Income		Gross Unrealized Gain Included in Cumulative Earnings		Total Gross Unrealized Gain		Gross Unrealized Loss Included in Accumulated Other Comprehensive Income			Gross Unrealized Loss Included in Cumulative Earnings			Total Gross Unrealized Loss
Non-Agency RMBS
Senior	$	721,524	$	—	$	721,524	$	(473	)	$	—		$	(473	)
Senior, interest-only	—		26,074		26,074		—			(76,710		)	(76,710		)
Subordinated	58,887		3,076		61,963		(272		)	—			(272		)
Subordinated, interest-only	—		1,830		1,830		—			(627		)	(627		)
Agency MBS
Residential	2,316		7,212		9,528		(70,382		)	(21,298		)	(91,680		)
Commercial	686		258		944		(40,635		)	(35,605		)	(76,240		)
Interest-only	—		954		954		—			(7,991		)	(7,991		)
Total	$	783,413	$	39,404	$	822,817	$	(111,762	)	$	(142,231	)	$	(253,993	)

			December 31, 2017
			(dollars in thousands)
	Gross Unrealized Gain Included in Accumulated Other Comprehensive Income		Gross Unrealized Gain Included in Cumulative Earnings		Total Gross Unrealized Gain		Gross Unrealized Loss Included in Accumulated Other Comprehensive Income			Gross Unrealized Loss Included in Cumulative Earnings			Total Gross Unrealized Loss
Non-Agency RMBS
Senior	$	754,234	$	—	$	754,234	$	(182	)	$	—		$	(182	)
Senior, interest-only	—		15,761		15,761		—			(67,907		)	(67,907		)
Subordinated	62,989		3,715		66,704		(102		)	(197		)	(299		)
Subordinated, interest-only	—		902		902		—			(445		)	(445		)
Agency MBS
Residential	5,706		—		5,706		(29,083		)	(4,816		)	(33,899		)
Commercial	15,462		1,579		17,041		(12,122		)	(3,977		)	(16,099		)
Interest-only	—		834		834		—			(7,744		)	(7,744		)
Total	$	838,391	$	22,791	$	861,182	$	(41,489	)	$	(85,086	)	$	(126,575	)

Changes in prepayments, actual cash flows, and cash flows expected to be collected, among other items, are affected by the collateral characteristics of each asset class. The Company chooses assets for the portfolio after carefully evaluating each investment’s risk profile.

The following tables provide a summary of the Company’s MBS portfolio at June 30, 2018 and December 31, 2017.

	June 30, 2018
	Principal or Notional Value at Period-End (dollars in thousands)		Weighted Average Amortized Cost Basis		Weighted Average Fair Value		Weighted Average Coupon		Weighted Average Yield at Period-End (1)
Non-Agency RMBS
Senior	$	2,522,667	$	53.23	$	81.81	4.8	%	17.7	%
Senior, interest-only	5,282,885		5.73		4.78		1.4	%	9.1	%
Subordinated	365,499		56.13		73.00		4.0	%	10.8	%
Subordinated, interest-only	206,557		4.49		5.07		0.9	%	11.8	%
Agency MBS
Residential pass-through	4,527,730		103.70		101.88		4.0	%	3.4	%
Commercial pass-through	2,300,891		102.08		98.81		3.6	%	3.4	%
Interest-only	3,010,512		3.65		3.42		0.7	%	3.3	%

(1) Bond Equivalent Yield at period end.

	December 31, 2017
	Principal or Notional Value at Period-End (dollars in thousands)		Weighted Average Amortized Cost Basis		Weighted Average Fair Value		Weighted Average Coupon		Weighted Average Yield at Period-End (1)
Non-Agency RMBS
Senior	$	2,733,926	$	54.04	$	81.62	4.6	%	16.7	%
Senior, interest-only	4,862,461		5.41		4.34		1.3	%	8.0	%
Subordinated	501,455		66.77		80.01		4.1	%	9.6	%
Subordinated, interest-only	201,378		3.66		3.89		0.8	%	11.8	%
Agency MBS
Residential pass-through	2,227,128		105.53		104.27		3.8	%	2.9	%
Commercial pass-through	1,894,594		102.26		102.31		3.6	%	3.2	%
Interest-only	3,021,840		3.68		3.45		0.7	%	3.4	%

(1) Bond Equivalent Yield at period end.

The following table presents the weighted average credit rating of the Company’s Non-Agency RMBS portfolio at June 30, 2018 and December 31, 2017.

	June 30, 2018		December 31, 2017
AAA	0.3	%	0.3	%
AA	0.9	%	0.3	%
A	0.1	%	0.6	%
BBB	1.4	%	1.9	%
BB	2.0	%	2.5	%
B	2.1	%	2.3	%
Below B	57.8	%	59.6	%
Not Rated	35.4	%	32.5	%
Total	100.0	%	100.0	%

Actual maturities of MBS are generally shorter than the stated contractual maturities. Actual maturities of the Company’s MBS are affected by the contractual lives of the underlying mortgages, periodic payments of principal and prepayments of principal. The following tables provide a summary of the fair value and amortized cost of the Company’s MBS at June 30, 2018 and December 31, 2017 according to their estimated weighted-average life classifications. The weighted-average lives of the MBS in the tables below are based on lifetime expected prepayment rates using an industry prepayment model for the Agency MBS portfolio and the Company’s prepayment assumptions for the Non-Agency RMBS. The prepayment model considers current yield, forward yield, steepness of the interest rate curve, current mortgage rates, mortgage rates of the outstanding loan, loan age, margin, and volatility.

	June 30, 2018
	(dollars in thousands)
	Weighted Average Life
	Less than one year		Greater than one year and less than five years		Greater than five years and less than ten years		Greater than ten years		Total
Fair value
Non-Agency RMBS
Senior	$	5,461	$	536,951	$	816,498	$	704,876	$	2,063,786
Senior interest-only	6		47,491		95,502		109,325		252,324
Subordinated	3,891		44,590		126,300		92,049		266,830
Subordinated interest-only	—		7,954		333		2,195		10,482
Agency MBS
Residential	—		—		4,600,496		12,424		4,612,920
Commercial	—		15,663		19,123		2,238,722		2,273,508
Interest-only	11,313		64,338		22,794		4,456		102,901
Total fair value	$	20,671	$	716,987	$	5,681,046	$	3,164,047	$	9,582,751
Amortized cost
Non-Agency RMBS
Senior	$	5,347	$	387,067	$	489,371	$	460,950	$	1,342,735
Senior interest-only	102		60,821		120,956		121,081		302,960
Subordinated	3,838		34,758		88,839		77,704		205,139
Subordinated interest-only	—		6,270		838		2,171		9,279
Agency MBS
Residential	—		—		4,682,192		12,880		4,695,072
Commercial	—		15,769		20,374		2,312,661		2,348,804
Interest-only	11,264		69,648		24,895		4,131		109,938
Total amortized cost	$	20,551	$	574,333	$	5,427,465	$	2,991,578	$	9,013,927

	December 31, 2017
	(dollars in thousands)
	Weighted Average Life
	Less than one year		Greater than one year and less than five years		Greater than five years and less than ten years		Greater than ten years		Total
Fair value
Non-Agency RMBS
Senior	$	2,179	$	681,086	$	910,234	$	637,916	$	2,231,415
Senior interest-only	19		54,107		72,702		84,022		210,850
Subordinated	—		75,495		121,555		204,175		401,225
Subordinated interest-only	—		7,165		661		—		7,826
Agency MBS
Residential	—		21,777		2,300,403		—		2,322,180
Commercial	—		45,770		16,559		1,875,952		1,938,281
Interest-only	—		74,490		25,271		4,606		104,367
Total fair value	$	2,198	$	959,890	$	3,447,385	$	2,806,671	$	7,216,144
Amortized cost
Non-Agency RMBS
Senior	$	2,124	$	493,965	$	569,458	$	411,816	$	1,477,363
Senior interest-only	1,271		73,758		94,145		93,822		262,996
Subordinated	—		61,987		91,044		181,789		334,820
Subordinated interest-only	—		6,355		1,014		—		7,369
Agency MBS
Residential	—		22,069		2,328,304		—		2,350,373
Commercial	—		47,170		17,176		1,872,993		1,937,339
Interest-only	—		79,356		27,582		4,339		111,277
Total amortized cost	$	3,395	$	784,660	$	3,128,723	$	2,564,759	$	6,481,537

The Non-Agency RMBS portfolio is subject to credit risk. The Non-Agency RMBS portfolio is primarily collateralized by Alt-A first lien mortgages. An Alt-A mortgage is a type of U.S. mortgage that, for various reasons, is considered riskier than A-paper, or prime, and less risky than subprime, the riskiest category. Alt-A interest rates, which are determined by credit risk, therefore tend to be between those of prime and subprime home loans. Typically, Alt-A mortgages are characterized by borrowers with less than full documentation, lower credit scores and higher loan-to-value ratios. At origination of the loan, Alt-A mortgage securities are defined as Non-Agency RMBS where (i) the underlying collateral has weighted average FICO scores between 680 and 720 or (ii) the FICO scores are greater than 720 and RMBS have 30% or less of the underlying collateral composed of full documentation loans. At June 30, 2018 and December 31, 2017, 67% and 66% of the Non-Agency RMBS collateral was classified as Alt-A, respectively. At June 30, 2018 and December 31, 2017, 15% and 13% of the Non-Agency RMBS collateral was classified as prime, respectively. The remaining Non-Agency RMBS collateral is classified as subprime.

The Non-Agency RMBS in the Portfolio have the following collateral characteristics at June 30, 2018 and December 31, 2017.

	June 30, 2018				December 31, 2017
Weighted average maturity (years)		20.4				20.7
Weighted average amortized loan to value (1)		63.3		%		64.4		%
Weighted average FICO (2)		703				697
Weighted average loan balance (in thousands)		$	324			$	314
Weighted average percentage owner occupied		84.5		%		84.4		%
Weighted average percentage single family residence		65.7		%		66.3		%
Weighted average current credit enhancement		1.5		%		2.2		%
Weighted average geographic concentration of top four states	CA	32.4		%	CA	31.7		%
	NY	8.4		%	NY	8.5		%
	FL	8.1		%	FL	8.3		%
	NJ	2.6		%	NJ	2.7		%

(1) Value represents appraised value of the collateral at the time of loan origination.

(2) FICO as determined at the time of loan origination.

The table below presents the origination year of the underlying loans related to the Company’s portfolio of Non-Agency RMBS at June 30, 2018 and December 31, 2017.

Origination Year	June 30, 2018		December 31, 2017
2003 and prior	4.8	%	3.6	%
2004	6.5	%	4.3	%
2005	20.1	%	20.8	%
2006	39.4	%	38.2	%
2007	23.6	%	30.4	%
2008	0.3	%	1.8	%
2009 and later	5.3	%	0.9	%
Total	100.0	%	100.0	%

Gross realized gains and losses are recorded in “Net realized gains (losses) on sales of investments” on the Company’s Consolidated Statements of Operations. The proceeds and gross realized gains and gross realized losses from sales of investments for the quarters and six months ended June 30, 2018 and 2017 are as follows:

	For the Quarter Ended						For the Six Months Ended
	June 30, 2018			June 30, 2017			June 30, 2018			June 30, 2017
	(dollars in thousands)
Proceeds from sales	$	32,551		$	153,681		$	32,551		$	173,743
Gross realized gains	4,383			5,380			4,383			10,566
Gross realized losses	(2,216		)	(839		)	(2,216		)	(858		)
Net realized gain (loss)	$	2,167		$	4,541		$	2,167		$	9,708

Included in the gross realized gains for the quarter and six months ended June 30, 2018 in the table above are exchanges of securities with a fair value of $22 million. The Company exchanged its investment in a re-remic security for the underlying collateral supporting the group related to the exchanged asset. These exchanges were treated as non-cash sales and purchases and resulted in a realized gain of $2 million, reflected in earnings for the quarter and six months ended June 30, 2018. For the quarter and six months ended June 30, 2017, the fair value of these exchanges of securities was $8 million and $28 million, and resulted in a realized gain of $256 thousand and $5 million, respectively.

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Loans Held for Investment

6 Months Ended

Jun. 30, 2018

Investments, Debt and Equity Securities [Abstract]

Loans Held for Investment

Loans Held for Investment

The Loans held for investment are comprised primarily of loans collateralized by seasoned subprime residential mortgages. Additionally, it includes non-conforming, single family, owner occupied, jumbo, prime residential mortgages.

At June 30, 2018, all Loans held for investment are carried at fair value. See Note 5 for a discussion on how the Company determines the fair values of the Loans held for investment. As changes in the fair value of these loans are reflected in earnings, the Company does not estimate or record a loan loss provision. The total amortized cost of our Loans held for investment was $12.9 billion and $13.3 billion as of June 30, 2018 and December 31, 2017, respectively.

The following table provides a summary of the changes in the carrying value of Loans held for investment at fair value at June 30, 2018 and December 31, 2017:

	For the Six Months Ended			For the Year Ended
	June 30, 2018			December 31, 2017
	(dollars in thousands)
Balance, beginning of period	$	13,678,263		$	8,753,653
Purchases	924,283			6,539,765
Principal paydowns	(944,146		)	(1,788,409		)
Sales and settlements	(389,798		)	2,876
Net periodic accretion (amortization)	(43,594		)	(35,803		)
Change in fair value	21,513			206,181
Balance, end of period	$	13,246,521		$	13,678,263

The primary cause of the change in fair value is due to market demand and changes in credit risk of mortgage loans.

Residential mortgage loans

The loan portfolio for all residential mortgages were originated during the following years:

Origination Year	June 30, 2018		December 31, 2017
2002 and prior	7.5	%	7.5	%
2003	6.7	%	6.7	%
2004	14.4	%	14.6	%
2005	20.1	%	20.4	%
2006	23.3	%	23.1	%
2007	19.1	%	19.0	%
2008	6.0	%	6.0	%
2009	0.8	%	0.7	%
2010 and later	2.1	%	2.0	%
Total	100.0	%	100.0	%

The following table presents a summary of key characteristics of the residential loan portfolio at June 30, 2018 and December 31, 2017:

	June 30, 2018				December 31, 2017
Number of loans		144,451				149,172
Weighted average maturity (years)		18.8				18.8
Weighted average loan to value (1)		87.5		%		88.0		%
Weighted average FICO (1)		630				631
Weighted average loan balance (in thousands)		$	91			$	91
Weighted average percentage owner occupied		92.8		%		95.0		%
Weighted average percentage single family residence		86.2		%		86.0		%
Weighted average geographic concentration of top five states	CA	9.1		%	CA	9.0		%
	FL	7.2		%	FL	7.2		%
	OH	6.0		%	OH	6.1		%
	NY	5.6		%	PA	5.6		%
	PA	5.6		%	VA	5.5		%

(1) As provided by the Trustee.

The following table summarizes the outstanding principal balance of the residential loan portfolio which are 30 days delinquent and greater as reported by the servicer at June 30, 2018 and December 31, 2017.

	30 Days Delinquent	60 Days Delinquent	90+ Days Delinquent	Bankruptcy	Foreclosure	REO	Total	Unpaid Principal/Notional
	(dollars in thousands)
June 30, 2018	$797,730	$288,255	$396,269	$244,955	$262,100	$34,519	$2,023,828	$13,083,186
% of Unpaid Principal Balance	6.1%	2.2%	3.0%	1.9%	2.0%	0.3%	15.5%
December 31, 2017	$888,535	$353,810	$435,876	$272,778	$200,376	$31,008	$2,182,383	$13,525,820
% of Unpaid Principal Balance	6.6%	2.6%	3.2%	2.0%	1.5%	0.2%	16.1%

The fair value of residential mortgage loans 90 days or more past due was $549 million and $577 million as of June 30, 2018 and December 31, 2017, respectively.

Real estate owned

Real estate owned (“REO”) represents properties which the Company has received the legal title of the property to satisfy the outstanding loan. REO is re-categorized from loan to REO when the Company takes legal title of the property. REO assets are measured and reported at the estimated fair value less the estimated cost to sell at the end of each reporting period. At the time the asset is re-categorized, any difference between the previously recorded loan balance and the carrying value of the REO at the time the Company takes legal title of the property, is recognized as a gain or loss. All REO assets of the Company are held-for-sale and it is the Company’s intention to sell the property in the shortest time possible to maximize their return and recovery on the previously recorded loan. The carrying value of REO assets at June 30, 2018 and December 31, 2017 was $16 million and $10 million, respectively, and were recorded in Other Assets on the Company’s consolidated statements of financial condition.

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Fair Value Measurements

6 Months Ended

Jun. 30, 2018

Fair Value Disclosures [Abstract]

Fair Value Measurements

Fair Value Measurements

The Company applies fair value guidance in accordance with GAAP to account for its financial instruments. The Company categorizes its financial instruments, based on the priority of the inputs to the valuation technique, into a three-level fair value hierarchy. The fair value hierarchy gives the highest priority to quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). If the inputs used to measure the financial instruments fall within different levels of the hierarchy, the categorization is based on the lowest level input that is significant to the fair value measurement of the instrument. Financial assets and liabilities recorded at fair value on the Consolidated Statements of Financial Condition or disclosed in the related notes are categorized based on the inputs to the valuation techniques as follows:

Level 1 – inputs to the valuation methodology are quoted prices (unadjusted) for identical assets and liabilities in active markets.

Level 2 – inputs to the valuation methodology include quoted prices for similar assets and liabilities in active markets, and inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instrument.

Level 3 – inputs to the valuation methodology are unobservable and significant to fair value.

Fair value measurements categorized within Level 3 are sensitive to changes in the assumptions or methodology used to determine fair value and such changes could result in a significant increase or decrease in the fair value. Any changes to the valuation methodology are reviewed by management to ensure the changes are appropriate. As markets and products evolve and the pricing for certain products becomes more transparent, the Company will continue to refine its valuation methodologies. The methodology utilized by the Company for the periods presented is unchanged. The methods used to produce a fair value calculation may not be indicative of net realizable value or reflective of future fair values. Furthermore, the Company believes its valuation methods are appropriate and consistent with other market participants. Using different methodologies, or assumptions, to determine the fair value of certain financial instruments could result in a different estimate of fair value at the reporting date. The Company uses inputs that are current as of the measurement date, which may include periods of market dislocation, during which price transparency may be reduced.

During times of market dislocation, the observability of prices and inputs can be difficult for certain investments. If third party pricing services are unable to provide a price for an asset, or if the price provided by them is deemed unreliable by the Company, then the asset will be valued at its fair value as determined by the Company without validation to third-party pricing. Illiquid investments typically experience greater price volatility as an active market does not exist. Observability of prices and inputs can vary significantly from period to period and may cause instruments to change classifications within the three level hierarchy.

A description of the methodologies utilized by the Company to estimate the fair value of its financial instruments by instrument class follows:

Agency MBS and Non-Agency RMBS

The Company determines the fair value of all of its investment securities based on discounted cash flows utilizing an internal pricing model that incorporates factors such as coupon, prepayment speeds, loan size, collateral composition, borrower characteristics, expected interest rates, life caps, periodic caps, reset dates, collateral seasoning, delinquency, expected losses, expected default severity, credit enhancement, and other pertinent factors. To corroborate that the estimates of fair values generated by these internal models are reflective of current market prices, the Company compares the fair values generated by the model to non-binding independent prices provided by two independent third party pricing services. For certain highly liquid asset classes, such as Agency fixed-rate pass-through bonds, the Company’s valuations are also compared to quoted prices for To-Be-Announced (“TBA”) securities.

Each quarter the Company develops thresholds which are determined utilizing current bid/ask spreads, liquidity, price volatility and other factors as appropriate. If internally developed model prices differ from the independent prices provided by greater than a market derived predetermined threshold for the period, the Company highlights these differences for further review, both internally and with the third party pricing service. The Company obtains the inputs used by the third party pricing services and compares them to the Company’s inputs. The Company updates its own inputs if the Company determines the third party pricing inputs more accurately reflect the current market environment. If the Company believes that its internally developed inputs more accurately reflect the current market environment, it will request that the third party pricing service review market factors that may not have been considered by the third party pricing service and provide updated prices. The Company reconciles and resolves all pricing differences in excess of the predetermined thresholds before a final price is established. AtJune 30, 2018, seventeen investment holdings with an internally developed fair value of $197 million had a difference between the model generated prices and third party prices provided in excess of the derived predetermined threshold for the period. The internally developed prices were $18 million lower than the third party prices provided of $215 million. After review and discussion, the Company affirmed and valued the investments at the lower internally developed prices. No other differences were noted at June 30, 2018 in excess of the derived predetermined threshold for the period. At December 31, 2017, four investment holdings with an internally developed fair value of $25 million had a difference between the model generated prices and third party prices provided in excess of the derived predetermined threshold for the period. The internally developed prices were $3 million lower than the third party prices provided of $28 million. After review and discussion, the Company affirmed and valued the investments at the lower internally developed prices.

The Company’s estimate of prepayment, default and severity curves all involve judgment and assumptions that are deemed to be significant to the fair value measurement process, which renders the resulting Non-Agency RMBS fair value estimates Level 3 inputs in the fair value hierarchy. As the fair values of Agency MBS are more observable, these investments are classified as level 2 in the fair value hierarchy.

Loans Held for Investment

Loans consisting of seasoned subprime residential mortgage loans:

The Company estimates the fair value of its Loans held for investment consisting of seasoned subprime residential mortgage loans on a loan by loan basis using an internally developed model which compares the loan held by the Company with a loan currently offered in the market. The loan price is adjusted in the model by considering the loan factors which would impact the value of a loan. These loan factors include: loan coupon as compared to coupon currently available in the market, FICO, loan-to-value ratios, delinquency history, owner occupancy, and property type, among other factors. A baseline is developed for each significant loan factor and adjusts the price up or down depending on how that factor for each specific loan compares to the baseline rate. Generally, the most significant impact on loan value is the loan interest rate as compared to interest rates currently available in the market and delinquency history. These two factors are based on relevant observable inputs.

The Company also monitors market activity to identify trades which may be used to compare internally developed prices; however, as the portfolio of loans held at fair value is a seasoned subprime pool of mortgage loans, comparable loan pools are not common or directly comparable. There are limited transactions in the market place to develop a comprehensive direct range of values.

The Company reviews the fair values generated by the model to determine whether prices are reflective of the current market by corroborating its estimates of fair value by comparing the results to non-binding independent prices provided by two independent third party pricing services for the loan portfolio. Each quarter the Company develops thresholds which are determined utilizing the securitization market.

If the internally developed fair values of the loan pools differ from the independent prices provided by greater than a predetermined threshold for the period, the Company highlights these differences for further review, both internally and with the third party pricing service. The Company obtains certain inputs used by the third party pricing services and evaluates them for reasonableness. The Company updates its own model if the Company determines the third party pricing inputs more accurately reflect the current market environment or observed information from the third party vendors. If the Company believes that its internally developed inputs more accurately reflect the current market environment, it will request that the third party pricing service review market factors that may not have been considered by the third party pricing service. The Company reconciles and resolves all pricing differences in excess of the predetermined thresholds before a final price is established.

At June 30, 2018, the internally developed fair values of loan pools of $1.19 billion had a difference between the model generated prices and third party prices provided in excess of the derived predetermined threshold for the period. The internally developed prices were $39 million higher than the third party prices provided of $1.15 billion. After review and discussion, the Company affirmed and valued the investments at the lower internally developed prices. At December 31, 2017, there were no pricing differences in excess of the predetermined thresholds between the model generated prices and third party prices.

The Company’s estimates of fair value of Loans held for investment involve management judgment and assumptions that are deemed to be significant to the fair value measurement process, which renders the resulting fair value estimates level 3 inputs in the fair value hierarchy.

Loans collateralized by jumbo, prime residential mortgages:

The loans collateralized by jumbo, prime residential mortgages are carried at fair value. The loans are held as part of a consolidated Collateralized Financing Entity (“CFE”). A CFE is a variable interest entity that holds financial assets, issues beneficial interests in those assets and has no more than nominal equity and the beneficial interests have contractual recourse only to the related assets of the CFE. Accounting guidance for CFEs allow the Company to elect to measure the CFE’s financial assets using the fair value of the CFE’s financial liabilities as the fair values of the financial liabilities of the CFE are more observable. Therefore, the fair value of the loans collateralized by jumbo, prime residential mortgages is based on the fair value of the financial liabilities. See discussion of the fair value of Securitized Debt, collateralized by Loans Held for Investment at fair value below.

As the more observable financial liabilities are considered level 3 in the fair value hierarchy, the Loans collateralized by jumbo, prime residential mortgages are also level 3 in the fair value hierarchy.

Securitized Debt, collateralized by Non-Agency RMBS

The Company carries securitized debt, collateralized by Non-Agency RMBS at the principal balance outstanding plus unamortized premiums, less unaccreted discounts recorded in connection with the financing of the loans or RMBS with third parties. The Company estimates the fair value of securitized debt, collateralized by Non-Agency RMBS by estimating the future cash flows associated with the underlying assets collateralizing the secured debt outstanding. The Company models the fair value of each underlying asset by considering, among other items, the structure of the underlying security, coupon, servicer, delinquency, actual and expected defaults, actual and expected default severities, reset indices, and prepayment speeds in conjunction with market research for similar collateral performance and management’s expectations of general economic conditions in the sector and other economic factors. This process, including the review process, is consistent with the process used for Agency MBS and Non-Agency RMBS using internal models. For further discussion of the valuation process and benchmarking process, see Agency MBS and Non-Agency RMBS discussion herein.

The Company’s estimates of fair value of securitized debt, collateralized by Non-Agency RMBS involve management’s judgment and assumptions that are deemed to be significant to the fair value measurement process, which renders the resulting fair value estimates level 3 inputs in the fair value hierarchy.

Securitized Debt, collateralized by Loans Held for Investment

The process for determining the fair value of securitized debt, collateralized by loans held for investment is based on discounted cash flows utilizing an internal pricing model that incorporates factors such as coupon, prepayment speeds, loan size, collateral composition, borrower characteristics, expected interest rates, life caps, periodic caps, reset dates, collateral seasoning, expected losses, expected default severity, credit enhancement, and other pertinent factors. This process, including the review process, is consistent with the process used for Agency MBS and Non-Agency RMBS using internal models. For further discussion of the valuation process and benchmarking process, see Agency MBS and Non-Agency RMBS discussion herein.

The Company’s estimates of fair value of securitized debt, collateralized by loans held for investment involve management’s judgment and assumptions that are deemed to be significant to the fair value measurement process, which renders the resulting fair value estimates level 3 inputs in the fair value hierarchy.

Fair value option

The table below shows the unpaid principal, fair value and impact of change in fair value on each of the financial instruments carried with fair value option as of June 30, 2018 and December 31, 2017 respectively:

	June 30, 2018
	(dollars in thousands)
	Unpaid Principal/ Notional	Fair Value		Quarter to Date Gain/(Loss) on Change in Fair Value			Year to Date Gain/(Loss) on Change in Fair Value
Assets:
Non-agency RMBS
Subordinated	N/A	$	12,918	$	(42	)	$	(440	)
Senior, interest-only	5,282,885	252,324		3,464			1,511
Subordinated, interest-only	206,557	10,482		335			746
Agency MBS
Residential Pass-through	3,010,558	3,075,138		3,081			(9,270		)
Commercial Pass-through	1,004,493	984,591		(12,534		)	(32,948		)
Interest-only	3,010,512	102,901		46			(127		)
Loans held for investment, at fair value	13,083,186	13,246,521		(20,082		)	21,513
Liabilities:
Securitized debt at fair value, collateralized by loans held for investment	9,388,837	9,340,368		7,369			15,118

	December 31, 2017
	(dollars in thousands)
	Unpaid Principal/ Notional	Fair Value		Quarter to Date Gain/(Loss) on Change in Fair Value			Year to Date Gain/(Loss) on Change in Fair Value
Assets:
Non-agency RMBS
Subordinated	N/A	$	13,993	$	(545	)	$	1,246
Senior, interest-only	4,862,461	210,850		3,156			(13,290		)
Subordinated, interest-only	201,378	7,826		1,836			2,311
Agency MBS
Residential Pass-through	577,522	602,829		(2,359		)	(4,816		)
Commercial Pass-through	564,379	570,105		(546		)	(2,398		)
Interest-only	3,021,840	104,367		(367		)	465
Loans held for investment, at fair value	13,525,820	13,678,263		(65,643		)	206,181
Liabilities:
Securitized debt at fair value, collateralized by loans held for investment	9,395,854	9,388,657		16,831			(78,289		)

Derivatives

Interest Rate Swaps and Swaptions

The Company uses clearing exchange market prices to determine the fair value of its exchange cleared interest rate swaps. For bi-lateral swaps, the Company determines the fair value based on the net present value of expected future cash flows on the swap. The Company uses option pricing model to determine the fair value of its swaptions. For bi-lateral swaps and swaptions, the Company compares its own estimate of fair value with counterparty prices to evaluate for reasonableness. Both the clearing exchange and counter-party pricing quotes, incorporate common market pricing methods, including a spread measurement to the Treasury yield curve or interest rate swap curve as well as underlying characteristics of the particular contract. Interest rate swaps and swaptions are modeled by the Company by incorporating such factors as the term to maturity, swap curve, overnight index swap rates, and the payment rates on the fixed portion of the interest rate swaps. The Company has classified the characteristics used to determine the fair value of interest rate swaps and swaptions as Level 2 inputs in the fair value hierarchy.

Treasury Futures

The fair value of Treasury futures is determined by quoted market prices in an active market. The Company has classified the characteristics used to determine the fair value of Treasury futures as Level 1 inputs in the fair value hierarchy.

Repurchase Agreements

Repurchase agreements are collateralized financing transactions utilized by the Company to acquire investment securities. Due to the short term nature of these financial instruments, the Company estimates the fair value of these repurchase agreements using the contractual obligation plus accrued interest payable.

Short-term Financial Instruments

The carrying value of cash and cash equivalents, accrued interest receivable, dividends payable, payable for investments purchased and accrued interest payable are considered to be a reasonable estimate of fair value due to the short term nature and low credit risk of these short-term financial instruments.

The Company’s financial assets and liabilities carried at fair value on a recurring basis, including the level in the fair value hierarchy, at June 30, 2018 and December 31, 2017 are presented below.

	June 30, 2018
	(dollars in thousands)
	Level 1		Level 2		Level 3		Counterparty and Cash Collateral, netting			Total
Assets:
Non-Agency RMBS, at fair value	$	—	$	—	$	2,593,422	$	—		$	2,593,422
Agency MBS, at fair value	—		6,989,329		—		—			6,989,329
Loans held for investment, at fair value	—		—		13,246,521		—			13,246,521
Derivatives	2,949		168,532		—		(42,140		)	129,341
Liabilities:
Securitized debt at fair value, collateralized by loans held for investment	—		—		9,340,368		—			9,340,368
Derivatives	—		16,730		—		(16,730		)	—

	December 31, 2017
	(dollars in thousands)
	Level 1		Level 2		Level 3	Counterparty and Cash Collateral, netting			Total
Assets:
Non-Agency RMBS, at fair value	$	—	$	—	2,851,316	$	—		$	2,851,316
Agency MBS, at fair value	—		4,364,828		—	—			4,364,828
Loans held for investment, at fair value	—		—		13,678,263	—			13,678,263
Derivatives	3,553		46,978		—	(1,617		)	48,914
Liabilities:
Securitized debt at fair value, collateralized by loans held for investment	—		—		9,388,657	—			9,388,657
Derivatives	—		1,937		—	(1,617		)	320

The table below provides a summary of the changes in the fair value of securities classified as Level 3 at June 30, 2018 and December 31, 2017.

Fair Value Reconciliation, Level 3
	For the Six Months Ended, June 30, 2018
	(dollars in thousands)
	Non-Agency RMBS			Loans held for investment			Securitized Debt
Beginning balance Level 3 assets	$	2,851,316		$	13,678,263		$	9,388,657
Transfers in to Level 3 assets	—			—			—
Transfers out of Level 3 assets	—			—			—
Purchases of assets/ issuance of debt	92,017			924,283			1,170,009
Principal payments	(327,923		)	(944,146		)	(894,694		)
Sales and Settlements	(32,379		)	(389,798		)	(293,460		)
Accretion (amortization) of purchase discounts	53,895			(43,594		)	(4,969		)
Gains (losses) included in net income
Other than temporary credit impairment losses	(10,289		)	—			—
Realized gains (losses) on sales and settlements	2,244			—			(10,057		)
Net unrealized gains (losses) included in income	1,815			21,513			(15,118		)
Gains (losses) included in other comprehensive income
Total unrealized gains (losses) for the period	(37,274		)	—			—
Ending balance Level 3 assets	$	2,593,422		$	13,246,521		$	9,340,368

Fair Value Reconciliation, Level 3
	For the Year Ended, December 31, 2017
	(dollars in thousands)
	Non-Agency RMBS			Loans held for investment			Securitized Debt
Beginning balance Level 3 assets	$	3,330,063		$	8,753,653		$	6,941,097
Transfers in to Level 3 assets	6,112			—			—
Transfers out of Level 3 assets	—			—			—
Purchases of assets/ issuance of debt	78,400			6,539,765			5,173,430
Principal payments	(568,339		)	(1,788,409		)	(1,787,368		)
Sales and Settlements	(68,162		)	2,876			(1,056,765		)
Accretion (amortization) of purchase discounts	120,119			(35,803		)	4,701
Gains (losses) included in net income
Other than temporary credit impairment losses	(59,881		)	—			—
Realized gains (losses) on sales and settlements	12,031			—			35,273
Net unrealized gains (losses) included in income	(9,733		)	206,181			78,289
Gains (losses) included in other comprehensive income
Total unrealized gains (losses) for the period	10,706			—			—
Ending balance Level 3 assets	$	2,851,316		$	13,678,263		$	9,388,657

There were no transfers in or out from Level 3, during the quarter ended June 30, 2018. There were $6 million of IOs transferred to Level 3 and no transfers out from Level 3 for the year ended December 31, 2017. The primary cause of the changes in fair value of the loans and the securitized debt are due to market demand for these instruments and changes in credit risk of the portfolio.

The significant unobservable inputs used in the fair value measurement of the Company’s Non-Agency RMBS and securitized debt are the weighted average discount rates, constant prepayment speed (“CPR”), cumulative default rate, and the loss severity.

Constant Prepayment Rates

For securitized debt carried at fair value issued at a premium, as prepayment speeds increase, the amount of interest expense the Company recognizes decreases as the issued premium on the debt amortizes faster than expected. Conversely, decreases in prepayment speeds result in increased expense and can extend the period over which the Company amortizes the premium.

For debt issued at a discount, as prepayment speeds increase, the amount of interest the Company expenses increases from the acceleration of the accretion of the discount into interest expense. Conversely, decreases in prepayment speeds result in decreased expense as the accretion of the discount into interest expense occurs over a longer period.

Constant Default Rates

Constant default rates represent an annualized rate of default on a group of mortgages. The constant default rate (“CDR”) represents the percentage of outstanding principal balances in the pool that are in default, which typically equates to the home being past 60-day and 90-day notices and in the foreclosure process. When default rates increase, expected cash flows on the underlying collateral decreases. When default rates decrease, expected cash flows on the underlying collateral increases.

Loss Severity

Loss severity rates reflect the amount of loss expected from a foreclosure and liquidation of the underlying collateral in the mortgage loan pool. When a mortgage loan is foreclosed the collateral is sold and the resulting proceeds are used to settle the outstanding obligation. In many circumstances, the proceeds from the sale do not fully repay the outstanding obligation. In these cases, a loss is incurred by the lender. Loss severity is used to predict how costly future losses are likely to be. An increase in loss severity results in a decrease in expected future cash flows. A decrease in loss severity results in an increase in expected future cash flows.

Discount Rate

The discount rate refers to the interest rate used in the discounted cash flow analysis to determine the present value of future cash flows. The discount rate takes into account not just the time value of money, but also the risk or uncertainty of future cash flows. An increased uncertainty of future cash flows results in a higher discount rate. The discount rate used to calculate the present value of the expected future cash flows is based on the discount rate implicit in the security as of the last measurement date. As discount rates move up, the discounted cash flows are reduced.

Sensitivity of Significant Inputs – Non-Agency RMBS and securitized debt, collateralized by loans held for investment

Prepayment speeds, as reflected by the CPR, vary according to interest rates, the type of financial instrument, conditions in financial markets, and other factors, none of which can be predicted with any certainty. In general, when interest rates rise, it is relatively less attractive for borrowers to refinance their mortgage loans, and as a result, prepayment speeds tend to decrease. When interest rates fall, prepayment speeds tend to increase. For RMBS investments purchased at a premium, as prepayment speeds increase, the amount of income the Company earns decreases as the purchase premium on the bonds amortizes faster than expected. Conversely, decreases in prepayment speeds result in increased income and can extend the period over which the Company amortizes the purchase premium. For RMBS investments purchased at a discount, as prepayment speeds increase, the amount of income the Company earns increases from the acceleration of the accretion of the discount into interest income. Conversely, decreases in prepayment speeds result in decreased income as the accretion of the purchase discount into interest income occurs over a longer period.

A summary of the significant inputs used to estimate the fair value of Non-Agency RMBS held for investment at fair value as of June 30, 2018 and December 31, 2017 follows:

	June 30, 2018				December 31, 2017
	Significant Inputs				Significant Inputs
	Weighted Average Discount Rate	CPR	CDR	Loss Severity	Weighted Average Discount Rate	CPR	CDR	Loss Severity
		Range				Range
Non-Agency RMBS
Senior	4.6%	2% -22%	0% -52%	35% -95%	4.4%	1% -45%	0% -55%	35% -89%
Senior interest-only	10.0%	4% -31%	0% -59%	35% -95%	11.2%	3% -25%	0% -50%	35% -95%
Subordinated	5.4%	1% -23%	0% -45%	10% -71%	5.8%	1% -20%	0% -33%	35% -69%
Subordinated interest-only	10.4%	4% -25%	0% -15%	35% -58%	12.0%	6% -22%	0% -9%	35% -63%

A summary of the significant inputs used to estimate the fair value of securitized debt at fair value, collateralized by loans held for investment, as of June 30, 2018 and December 31, 2017 follows:

		June 30, 2018				December 31, 2017
		Significant Inputs				Significant Inputs
	Weighted Average Discount Rate	CPR Range	CDR Range	Loss Severity Range	Weighted Average Discount Rate	CPR Range	CDR Range	Loss Severity Range
Securitized debt at fair value, collateralized by loans held for investment	4.4%	6% - 15%	0% - 8%	35% - 60%	4.1%	6% - 15%	0% - 6%	35% - 60%

All of the significant inputs listed have some degree of market observability, based on the Company’s knowledge of the market, information available to market participants, and use of common market data sources. Collateral default and loss severity projections are in the form of “curves” that are updated quarterly to reflect the Company’s collateral cash flow projections. Methods used to develop these projections conform to industry conventions. The Company uses assumptions it considers its best estimate of future cash flows for each security.

Constant Prepayment Rates

The prepayment speed specifies the percentage of the collateral balance that is expected to prepay at each point in the future. The prepayment speed is based on factors such as collateral FICO score, loan-to-value ratio, debt-to-income ratio, and vintage on a loan level basis and is scaled up or down to reflect recent collateral-specific prepayment experience as obtained from remittance reports and market data services.

Constant Default Rates

Default vectors are determined from the current “pipeline” of loans that are more than 30 days delinquent, in foreclosure, bankruptcy, or are REO. These delinquent loans determine the first 30 months of the default curve. Beyond month 30, the default curve transitions to a value that is reflective of a portion of the current delinquency pipeline.

Loss Severity

The curve generated to reflect the Company’s expected loss severity is based on collateral-specific experience with consideration given to other mitigating collateral characteristics. Characteristics such as seasoning are taken into consideration because severities tend to initially increase on newly originated securities, before beginning to decline as the collateral ages and eventually stabilize. Collateral characteristics such as loan size, loan-to-value, and geographic location of collateral also effect loss severity.

Discount Rate

The discount rates applied to the expected cash flows to determine fair value are derived from a range of observable prices on securities backed by similar collateral. As the market becomes more or less liquid, the availability of these observable inputs will change.

Sensitivity of Significant Inputs – Loans held for investment

The Loans held for investment are comprised primarily of loans collateralized by seasoned subprime residential mortgages. Additionally, it includes non-conforming, single family, owner occupied, jumbo, prime residential mortgages. The significant unobservable inputs used to estimate the fair value of the Loans held for investment collateralized by seasoned subprime residential mortgage loans, as of June 30, 2018 and December 31, 2017 include coupon, FICO score at origination, loan-to-value ratios (LTV), owner occupancy status, and property type. A summary of the significant inputs used to estimate the fair value of Loans held for investment collateralized by seasoned subprime mortgages at fair value as of June 30, 2018 and December 31, 2017 follows:

	June 30, 2018	December 31, 2017
Factor:
Coupon
Base Rate	5.0%	4.8%
Actual	6.9%	6.9%
FICO
Base Rate	636	636
Actual	627	627
Loan-to-value (LTV)
Base Rate	88%	89%
Actual	88%	88%
Loan Characteristics:
Occupancy
Owner Occupied	93%	95%
Investor	1%	1%
Secondary	6%	4%
Property Type
Single family	87%	87%
Manufactured housing	4%	4%
Multi-family/mixed use/other	9%	9%

The loan factors are generally not observable for the individual loans and the base rates developed by the Company’s internal model are subjective and change as market conditions change. The impact of the loan coupon on the value of the loan is dependent on whether the loan is clean or reperforming. A clean loan, with no history of delinquent payments and a relatively high loan interest rate would result in a higher overall value than a reperforming loan which has a history of delinquency. Similarly, a higher FICO score and a lower LTV ratio results in increases in the fair market value of the loan and a lower FICO score and a higher LTV ratio results in a lower value.

Property types also affect the overall loan values. Property types include single family, manufactured housing and multi-family/mixed use and other types of properties. Single family homes represent properties which house one to four family units. Manufactured homes include mobile homes and modular homes. Loan value for properties that are investor or secondary homes have a reduced value as compared to the baseline loan value. Additionally, single family homes will result in an increase to the loan value where manufactured and multi-family/mixed use and other properties will result in a decrease to the loan value, as compared to the baseline.

Financial instruments not carried at fair value

The following table presents the carrying value and fair value, as described above, of the Company’s financial instruments not carried at fair value on a recurring basis at June 30, 2018 and December 31, 2017.

	June 30, 2018
	(dollars in thousands)
	Level in Fair Value Hierarchy	Carrying Amount	Fair Value
Repurchase agreements	2	9,127,048	9,151,213
Securitized debt, collateralized by Non-Agency RMBS	3	179,742	161,707

	December 31, 2017
	(dollars in thousands)
	Level in Fair Value Hierarchy	Carrying Amount	Fair Value
Repurchase agreements	2	7,250,452	7,269,193
Securitized debt, collateralized by Non-Agency RMBS	3	205,780	192,259

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Repurchase Agreements

6 Months Ended

Jun. 30, 2018

Banking and Thrift [Abstract]

Repurchase Agreements

Repurchase Agreements

The interest rates of the Company’s repurchase agreements are generally indexed to the one-month, three-month and twelve-month LIBOR rates and re-price accordingly. The repurchase agreements outstanding, weighted average borrowing rates, weighted average remaining maturities, average daily balances and the fair value of collateral pledged as of June 30, 2018 and December 31, 2017 were:

	June 30, 2018			December 31, 2017
Repurchase agreements outstanding secured by:
Agency MBS (in thousands)	$	5,569,418		$	3,202,056
Non-agency MBS and Loans held for investment (in thousands)	3,557,630			4,048,396
Total:	$	9,127,048		$	7,250,452
Average balance of Repurchase agreements secured by:
Agency MBS (in thousands)	$	3,907,750		$	3,120,474
Non-agency MBS and Loans held for investment (in thousands)	3,893,703			3,203,700
Total:	$	7,801,453		$	6,324,174
Average borrowing rate of Repurchase agreements secured by:
Agency MBS	2.09		%	1.47		%
Non-agency MBS and Loans held for investment	4.02		%	3.41		%
Average remaining maturity of Repurchase agreements secured by:
Agency MBS	24 Days			28 Days
Non-agency MBS and Loans held for investment	98 Days			93 Days
Average original maturity of Repurchase agreements secured by:
Agency MBS	66 Days			87 Days
Non-agency MBS and Loans held for investment	124 Days			123 Days
MBS pledged as collateral at fair value on Repurchase agreements:
Agency MBS (in thousands)	$	5,954,878		$	3,450,123
Non-agency MBS and Loans held for investment (in thousands)	4,671,505			5,338,557
Total:	$	10,626,383		$	8,788,680

At June 30, 2018 and December 31, 2017, the repurchase agreements collateralized by MBS and Loans held for investment had the following remaining maturities.

	June 30, 2018		December 31, 2017
	(dollars in thousands)
Overnight	$	—	$	—
1 to 29 days	4,757,404		4,745,342
30 to 59 days	1,915,294		1,206,769
60 to 89 days	1,460,284		592,865
90 to 119 days	90,183		—
Greater than or equal to 120 days	903,883		705,476
Total	$	9,127,048	$	7,250,452

At June 30, 2018, the Company had an amount at risk with Credit Suisse of 11% of its equity related to the collateral posted on repurchase agreements. As of June 30, 2018 the weighted average remaining maturity of the repurchase agreements with Credit Suisse was 64 days and the amount at risk was $410 million. At December 31, 2017, the Company had an amount at risk with Credit Suisse of 12% of its equity related to the collateral posted on repurchase agreements. As of December 31, 2017, the weighted average maturity of the repurchase agreements with Credit Suisse was 25 days and the amount at risk was $451 million. There were no other amounts at risk with any other counterparties greater than 10% of the Company’s equity as of June 30, 2018 and December 31, 2017.

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Securitized Debt

6 Months Ended

Jun. 30, 2018

Debt Disclosure [Abstract]

Securitized Debt

Securitized Debt

All of the Company’s securitized debt is collateralized by residential mortgage loans or Non-Agency RMBS. For financial reporting purposes, the Company’s securitized debt is accounted for as secured borrowings. Thus, the residential mortgage loans or RMBS held as collateral are recorded in the assets of the Company as Loans held for investment or Non-Agency RMBS and the securitized debt is recorded as a non-recourse liability in the accompanying Consolidated Statements of Financial Condition.

Securitized Debt Collateralized by Non-Agency RMBS

At June 30, 2018 and December 31, 2017 the Company’s securitized debt collateralized by Non-Agency RMBS is carried at amortized cost and had a principal balance of $194 million and $219 million, respectively. At June 30, 2018 and December 31, 2017, the debt carried a weighted average coupon equal to 6.3% and 6.2%, respectively. The debt matures between the years 2035 and 2046. None of the Company’s securitized debt collateralized by Non-Agency RMBS is callable.

There were no securitized debt collateralized by Non-Agency RMBS acquisitions during the quarters ended June 30, 2018 and 2017.

The following table presents the estimated principal repayment schedule of the securitized debt collateralized by Non-Agency RMBS at June 30, 2018 and December 31, 2017, based on expected cash flows of the residential mortgage loans or RMBS, as adjusted for projected losses on the underlying collateral of the debt. All of the securitized debt recorded in the Company’s Consolidated Statements of Financial Condition is non-recourse to the Company.

	June 30, 2018		December 31, 2017
	(dollars in thousands)
Within One Year	$	30,923	$	42,217
One to Three Years	37,753		45,916
Three to Five Years	11,461		16,524
Greater Than Five Years	5,600		4,867
Total	$	85,737	$	109,524

Maturities of the Company’s securitized debt collateralized by Non-Agency RMBS are dependent upon cash flows received from the underlying loans. The estimate of their repayment is based on scheduled principal payments on the underlying loans. This estimate will differ from actual amounts to the extent prepayments or loan losses are experienced. See Note 3 for a more detailed discussion of the securities collateralizing the securitized debt.

Securitized Debt Collateralized by Loans Held for Investment

At June 30, 2018 and December 31, 2017 the Company’s securitized debt collateralized by loans held for investment had a principal balance of $9.4 billion. At June 30, 2018 and December 31, 2017 the total securitized debt collateralized by loans held for investment carried a weighted average coupon equal to 4.4% and 4.2%, respectively. The debt matures between the years 2023 and 2067.

During the quarter ended June 30, 2018, the Company acquired securitized debt collateralized by loans with an amortized cost balance of $155 million for $154 million. This transaction resulted in a net gain on the extinguishment of debt of $387 thousand, which is reflected in earnings for the quarter ended June 30, 2018. During the six months ended June 30, 2018, the Company acquired securitized debt collateralized by loans with an amortized cost balance of $304 million for $294 million. This transaction resulted in a net gain on the extinguishment of debt of $10 million, which is reflected in earnings for the quarter ended June 30, 2018.

During the quarter ended June 30, 2017, the Company acquired securitized debt collateralized by loans with an amortized cost balance of $197 million for $245 million. This transaction resulted in a net loss on extinguishment of debt of $48 million, which is reflected in earnings for the quarter and six months ended June 30, 2017. As the Company's securitized debt is carried at fair value with changes in fair value reflected in earnings some of this loss was recognized during prior periods.

The following table presents the estimated principal repayment schedule of the securitized debt collateralized by loans held for investment at June 30, 2018 and December 31, 2017, based on expected cash flows of the residential mortgage loans or RMBS, as adjusted for projected losses on the underlying collateral of the debt. All of the securitized debt recorded in the Company’s Consolidated Statements of Financial Condition is non-recourse to the Company.

	June 30, 2018		December 31, 2017
	(dollars in thousands)
Within One Year	$	1,785,710	$	1,819,018
One to Three Years	2,818,626		2,872,572
Three to Five Years	2,110,377		2,140,434
Greater Than Five Years	2,493,804		2,439,872
Total	$	9,208,517	$	9,271,896

Maturities of the Company’s securitized debt collateralized by loans held for investment are dependent upon cash flows received from the underlying loans. The estimate of their repayment is based on scheduled principal payments on the underlying loans. This estimate will differ from actual amounts to the extent prepayments or loan losses are experienced. See Note 4 for a more detailed discussion of the loans collateralizing the securitized debt.

Certain of the securitized debt collateralized by loans held for investment contain call provisions at the option of the Company. The following table presents the par value of the callable debt by year at June 30, 2018. 

June 30, 2018
(dollars in thousands)
Year	Principal
2018	$	560,814
2019	360,602
2020	4,621,456
2021	3,197,192
2022	300,973
2023	142,144
Total	$	9,183,181

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Consolidated Securitization Vehicles and Other Variable Interest Entities

6 Months Ended

Jun. 30, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Consolidated Securitization Vehicles and Other Variable Interest Entities

Consolidated Securitization Vehicles and Other Variable Interest Entities

Since its inception, the Company has utilized VIEs for the purpose of securitizing whole mortgage loans or re-securitizing RMBS and obtaining long-term, non-recourse financing. The Company evaluated its interest in each VIE to determine if it is the primary beneficiary.

As of June 30, 2018, the Company’s Consolidated Statement of Financial Condition includes assets of consolidated VIEs with a carrying value of $14.5 billion and liabilities with a carrying value of $9.6 billion. As of December 31, 2017, the Company’s Consolidated Statement of Financial Condition includes assets of consolidated VIEs with a carrying value of $15.0 billion of and liabilities with a carrying value of $9.6 billion.

VIEs for Which the Company is the Primary Beneficiary

The retained beneficial interests in VIEs for which the Company is the primary beneficiary are typically the subordinated tranches of these re-securitizations and in some cases the Company may hold interests in additional tranches. The table below reflects the assets and liabilities recorded in the Consolidated Statements of Financial Condition related to the consolidated VIEs as of June 30, 2018 and December 31, 2017.

	June 30, 2018		December 31, 2017
	(dollars in thousands)
Assets:
Non-Agency RMBS, at fair value	$	1,280,378	$	1,579,793
Loans held for investment, at fair value	13,045,302		13,263,338
Accrued interest receivable	75,390		75,489
Other assets	54,708		68,844
Liabilities:
Securitized debt, collateralized by Non-Agency RMBS	$	179,742	$	205,780
Securitized debt at fair value, collateralized by loans held for investment	9,340,368		9,388,657
Accrued interest payable	35,754		33,870
Other liabilities	3,285		3,513

Income, OTTI and expense amounts related to consolidated VIEs recorded in the Consolidated Statements of Operations is presented in the tables below.

	For the Quarters Ended
	June 30, 2018			June 30, 2017
	(dollars in thousands)
Interest income, Assets of consolidated VIEs	$	229,746		$	234,437
Interest expense, Non-recourse liabilities of VIEs	99,507			105,723
Net interest income	$	130,239		$	128,714
Total other-than-temporary impairment losses	$	(351	)	$	(696	)
Portion of loss recognized in other comprehensive income (loss)	(8,561		)	(12,146		)
Net other-than-temporary credit impairment losses	$	(8,912	)	$	(12,842	)
Servicing fees	$	9,722		$	10,890

	For the Six Months Ended
	June 30, 2018			June 30, 2017
	(dollars in thousands)
Interest income, Assets of consolidated VIEs	$	464,772		$	427,426
Interest expense, Non-recourse liabilities of VIEs	199,121			188,407
Net interest income	$	265,651		$	239,019
Total other-than-temporary impairment losses	$	(351	)	$	(1,109	)
Portion of loss recognized in other comprehensive income (loss)	(8,561		)	(25,613		)
Net other-than-temporary credit impairment losses	$	(8,912	)	$	(26,722	)
Servicing fees	$	20,133		$	20,478

VIEs for Which the Company is Not the Primary Beneficiary

The Company is not required to consolidate VIEs in which it has concluded it does not have a controlling financial interest, and thus is not the primary beneficiary. In such cases, the Company does not have both the power to direct the entities’ most significant activities and the obligation to absorb losses or right to receive benefits that could potentially be significant to the VIEs. The Company’s investments in these unconsolidated VIEs are carried in Non-Agency RMBS on the Consolidated Statements of Financial Condition and include senior and subordinated bonds issued by the VIEs. The fair value of the Company’s investments in each unconsolidated VIEs at June 30, 2018, ranged from less than $1 million to $49 million, with an aggregate amount of $1.3 billion. The fair value of the Company’s investments in each unconsolidated VIEs at December 31, 2017, ranged from less than $1 million to $52 million, with an aggregate amount of $1.3 billion. The Company’s maximum exposure to loss from these unconsolidated VIEs was $1.2 billion at June 30, 2018 and December 31, 2017. The maximum exposure to loss was determined as the amortized cost of the unconsolidated VIE, which represents the purchase price of the investment adjusted by any unamortized premiums or discounts as of the reporting date.

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Derivative Instruments

6 Months Ended

Jun. 30, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Instruments

Derivative Instruments

In connection with the Company’s interest rate risk management strategy, the Company economically hedges a portion of its interest rate risk by entering into derivative financial instrument contracts in the form of interest rate swaps, swaptions, and Treasury futures. The Company’s swaps are used to lock in a fixed rate related to a portion of its current and anticipated payments on its repurchase agreements. The Company typically agrees to pay a fixed rate of interest (“pay rate”) in exchange for the right to receive a floating rate of interest (“receive rate”) over a specified period of time. Treasury futures are derivatives which track the prices of specific Treasury securities and are traded on an active exchange. It is generally the Company’s policy to close out any Treasury futures positions prior to taking delivery of the underlying security. The Company uses Treasury futures to lock in a fixed rate related to a portion of its current and anticipated payments on its repurchase agreements.

The use of derivatives creates exposure to credit risk relating to potential losses that could be recognized if the counterparties to these instruments fail to perform their obligations under the contracts. In the event of a default by the counterparty, the Company could have difficulty obtaining its RMBS or cash pledged as collateral for these derivative instruments. The Company periodically monitors the credit profiles of its counterparties to determine if it is exposed to counterparty credit risk. See Note 14 for further discussion of counterparty credit risk.

The table below summarizes the location and fair value of the derivatives reported in the Consolidated Statements of Financial Condition after counterparty netting and posting of cash collateral as of June 30, 2018 and December 31, 2017.

			June 30, 2018
			Derivative Assets			Derivative Liabilities
Derivative Instruments	Notional Amount Outstanding		Location on Consolidated Statements of Financial Condition	Net Estimated Fair Value/Carrying Value		Location on Consolidated Statements of Financial Condition	Net Estimated Fair Value/Carrying Value
			(dollars in thousands)
Interest Rate Swaps	$	7,692,400	Derivatives, at fair value, net	$	123,975	Derivatives, at fair value, net	$	—
Swaptions	53,000		Derivatives, at fair value, net	2,417		Derivatives, at fair value, net	—
Treasury Futures	619,700		Derivatives, at fair value, net	2,949		Derivatives, at fair value, net	—
Total	$	8,365,100		$	129,341		$	—

			December 31, 2017
			Derivative Assets			Derivative Liabilities
Derivative Instruments	Notional Amount Outstanding		Location on Consolidated Statements of Financial Condition	Net Estimated Fair Value/Carrying Value		Location on Consolidated Statements of Financial Condition	Net Estimated Fair Value/Carrying Value
			(dollars in thousands)
Interest Rate Swaps	$	3,816,400	Derivatives, at fair value, net	$	43,257	Derivatives, at fair value, net	$	—
Swaptions	391,000		Derivatives, at fair value, net	2,105		Derivatives, at fair value, net	(320		)
Treasury Futures	619,700		Derivatives, at fair value, net	3,552		Derivatives, at fair value, net	—
Total	$	4,827,100		$	48,914		$	(320	)

The effect of the Company’s derivatives on the Consolidated Statements of Operations is presented below.

		Net gains (losses) on derivatives for the quarters ended
Derivative Instruments	Location on Consolidated Statements of Operations and Comprehensive Income	June 30, 2018			June 30, 2017
		(dollars in thousands)
Interest Rate Swaps	Net unrealized gains (losses) on derivatives	$	21,165		$	4,377
Interest Rate Swaps	Net realized gains (losses) on derivatives (1)	1,246			(19,629		)
Treasury Futures	Net unrealized gains (losses) on derivatives	5,984			2,179
Treasury Futures	Net realized gains (losses) on derivatives	(2,210		)	(6,914		)
Swaptions	Net unrealized gains (losses) on derivatives	(1,254		)	(754		)
Swaptions	Net realized gains (losses) on derivatives	(429		)	(1,081		)
Total		$	24,502		$	(21,822	)

(1) Includes loss on termination of interest rate swaps of $16 million for the quarter ended June 30, 2017. There were no swaps terminations during the quarter ended June 30, 2018.

		Net gains (losses) on derivatives for the six months ended
Derivative Instruments	Location on Consolidated Statements of Operations and Comprehensive Income	June 30, 2018			June 30, 2017
		(dollars in thousands)
Interest Rate Swaps	Net unrealized gains (losses) on derivatives	$	106,129		$	10,693
Interest Rate Swaps	Net realized gains (losses) on derivatives (1)	(1,365		)	(23,733		)
Treasury Futures	Net unrealized gains (losses) on derivatives	(604		)	(388		)
Treasury Futures	Net realized gains (losses) on derivatives	14,215			(8,999		)
Swaptions	Net unrealized gains (losses) on derivatives	1,789			393
Swaptions	Net realized gains (losses) on derivatives	(1,157		)	(4,250		)
Total		$	119,007		$	(26,284	)

(1) Includes loss on termination of interest rate swaps of $16 million for the six months ended June 30, 2017. There were no swaps terminations during the six months ended June 30, 2018.

The weighted average pay rate on the Company’s interest rate swaps at June 30, 2018 was 2.35% and the weighted average receive rate was 2.33%. The weighted average pay rate on the Company’s interest rate swaps at December 31, 2017 was 1.93% and the weighted average receive rate was 1.53%. The weighted average maturity on the Company’s interest rate swaps at June 30, 2018 and December 31, 2017 was 6 years and 5 years, respectively.

Certain of the Company’s derivative contracts are subject to International Swaps and Derivatives Association Master Agreements or other similar agreements which may contain provisions that grant counterparties certain rights with respect to the applicable agreement upon the occurrence of certain events such as (i) a decline in stockholders’ equity in excess of specified thresholds or dollar amounts over set periods of time, (ii) the Company’s failure to maintain its REIT status, (iii) the Company’s failure to comply with limits on the amount of leverage, and (iv) the Company’s stock being delisted from the New York Stock Exchange (NYSE). Upon the occurrence of any one of items (i) through (iv), or another default under the agreement, the counterparty to the applicable agreement has a right to terminate the agreement in accordance with its provisions. Certain of the Company’s interest rate swaps are cleared through a registered commodities exchange. Each of the Company’s ISDAs and clearing exchange agreements contains provisions under which the Company is required to fully collateralize its obligations under the interest rate swap agreements if at any point the fair value of the swap represents a liability greater than the minimum transfer amount contained within the agreements. The Company is also required to post initial collateral upon execution of certain of its swap transactions. If the Company breaches any of these provisions, it will be required to settle its obligations under the agreements at their termination values, which approximates fair value. The Company uses clearing exchange market prices to determine the fair value of its interest rate swaps. The aggregate fair value of all derivative instruments with credit-risk-related contingent features that are in a net asset position at June 30, 2018 is approximately $143 million including accrued interest, which represents the maximum amount the Company would receive upon termination, which is fully collateralized.

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Capital Stock

6 Months Ended

Jun. 30, 2018

Equity [Abstract]

Capital Stock

Capital Stock

Preferred Stock

The Company declared dividends to Series A preferred stockholders of $3 million and $6 million, or $0.50 and $1.00, respectively, per preferred share during the quarter and six months ended June 30, 2018 and 2017, respectively.

The Company declared dividends to Series B preferred stockholders of $7 million and $13 million, or $0.50 and $1.00 per preferred share, respectively, during the quarter and six months ended June 30, 2018.

The Company declared dividends to Series B preferred stockholders of $7 million and $9 million, or $0.50 and $0.68, respectively, per preferred share during the quarter and six months ended June 30, 2017, respectively.

Common Stock

In February 2018, our Board of Directors reauthorized $100 million under our share repurchase program (the “Repurchase Program”). Such authorization does not have an expiration date and, at present, there is no intention to modify or otherwise rescind such authorization. Shares of our common stock may be purchased in the open market, including through block purchases, through privately negotiated transactions, or pursuant to any trading plan that may be adopted in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended. The timing, manner, price and amount of any repurchases will be determined at our discretion and the program may be suspended, terminated or modified at any time for any reason. Among other factors, the Company intends to only consider repurchasing shares of our common stock when the purchase price is less than the last publicly reported book value per common share. In addition, the Company does not intend to repurchase any shares from directors, officers or other affiliates. The program does not obligate the Company to acquire any specific number of shares, and all repurchases will be made in accordance with Rule 10b-18, which sets certain restrictions on the method, timing, price and volume of stock repurchases.

Pursuant to our Repurchase Program, the Company repurchased approximately 883 thousand shares of its common stock at an average price of $16.81 per share for a total of $15 million during the first quarter of 2018. The company did not repurchase any common stock during the quarter ended June 30, 2018.

During the quarter and six months ended June 30, 2018, and 2017, the Company declared dividends to common shareholders of $94 million and $188 million, or $0.50 and $1.00 per share, respectively.

Earnings per share for the quarters and six months ended June 30, 2018 and 2017, respectively, are computed as follows:

	For the Quarter Ended
	June 30, 2018		June 30, 2017
	(dollars in thousands)
Numerator:
Net income available to common shareholders	$	108,708	$	105,617
Effect of dilutive securities:	—		—
Dilutive net income available to common shareholders	$	108,708	$	105,617
Denominator:
Weighted average basic shares	186,994,743		187,779,406
Effect of dilutive securities	427,402		363,145
Weighted average dilutive shares	187,422,145		188,142,551
Net income per average share attributable to common stockholders - Basic	$	0.58	$	0.56
Net income per average share attributable to common stockholders - Diluted	$	0.58	$	0.56

	For the Six Months Ended
	June 30, 2018		June 30, 2017
	(dollars in thousands)
Numerator:
Net income available to common shareholders	$	338,316	$	263,141
Effect of dilutive securities:	—		—
Dilutive net income available to common shareholders	$	338,316	$	263,141
Denominator:
Weighted average basic shares	187,272,469		187,770,626
Effect of dilutive securities	465,974		398,467
Weighted average dilutive shares	187,738,443		188,169,093
Net income per average share attributable to common stockholders - Basic	$	1.81	$	1.40
Net income per average share attributable to common stockholders - Diluted	$	1.80	$	1.40

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Accumulated Other Comprehensive Income

6 Months Ended

Jun. 30, 2018

Equity [Abstract]

Accumulated Other Comprehensive Income

Accumulated Other Comprehensive Income

The following table presents the changes in the components of Accumulated Other Comprehensive Income (“AOCI”) for the six months ended June 30, 2018 and 2017:

	June 30, 2018
	(dollars in thousands)
	Unrealized gains (losses) on available-for-sale securities, net			Total Accumulated OCI Balance
Balance as of December 31, 2017	$	796,902		$	796,902
OCI before reclassifications	(131,157		)	(131,157		)
Amounts reclassified from AOCI	5,906			5,906
Net current period OCI	(125,251		)	(125,251		)
Balance as of June 30, 2018	$	671,651		$	671,651

	June 30, 2017
	(dollars in thousands)
	Unrealized gains (losses) on available-for-sale securities, net		Total Accumulated OCI Balance
Balance as of December 31, 2016	$	718,106	$	718,106
OCI before reclassifications	37,744		37,744
Amounts reclassified from AOCI	24,433		24,433
Net current period OCI	62,177		62,177
Balance as of June 30, 2017	$	780,283	$	780,283

The following table presents the details of the reclassifications from AOCI for the six months ended June 30, 2018 and 2017:

	June 30, 2018			June 30, 2017
Details about Accumulated OCI Components	Amounts Reclassified from Accumulated OCI			Amounts Reclassified from Accumulated OCI			Affected Line on the Consolidated Statements Of Operations
Unrealized gains and losses on available-for-sale securities
	$	4,383		$	7,777		Net realized gains (losses) on sales of investments
	(10,289		)	(32,210		)	Net other-than-temporary credit impairment losses
	$	(5,906	)	$	(24,433	)	Income before income taxes
	—			—			Income taxes
	$	(5,906	)	$	(24,433	)	Net of tax

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Equity Compensation, Employment Agreements and other Benefit Plans

6 Months Ended

Jun. 30, 2018

Compensation Related Costs [Abstract]

Equity Compensation, Employment Agreements and other Benefit Plans

Equity Compensation, Employment Agreements and other Benefit Plans

In accordance with the terms of the Company’s 2007 Equity Incentive Plan (as amended and restated on December 10, 2015) (the “Incentive Plan”), directors, officers and employees of the Company are eligible to receive restricted stock grants. These awards generally have a restriction period lasting three years. During the vesting period, these shares may not be sold. There were approximately 6 million shares available for future grants under the Incentive Plan as of June 30, 2018.

During the first quarter of 2017, the Compensation Committee of the Board of Directors of the Company approved a Stock Award Deferral Program (the “Deferral Program”). Under the Deferral Program, non-employee directors and certain executive officers can elect to defer payment of certain stock awards made pursuant to the Equity Plan. Deferred awards are treated as deferred stock units and paid at the earlier of separation from service or a date elected by the participant. Payments are generally made in a lump sum or, if elected by the participant, in five annual installments. Deferred awards receive dividend equivalents during the deferral period in the form of additional deferred stock units. Amounts are paid at the end of the deferral period by delivery of shares from the Incentive Plan (plus cash for any fractional deferred stock units), less any applicable tax withholdings. Deferral elections do not alter any vesting requirements applicable to the underlying stock award.

During the first quarter of 2018 and 2017, the Company granted certain of its employees Restricted Stock Units (“RSU”) awards.  RSU awards are designed to reward certain employees of the Company for services provided over the previous year. Generally, the RSU awards vest equally over a three-year period beginning from the grant date and will fully vest after three years. The RSU awards are valued at the market price of the Company’s common stock on the grant date and the employees must be employed by the Company on the vesting dates to receive the RSU awards. The Company granted 241 thousand and 112 thousand RSU awards during the first quarter of 2018 and 2017, with a grant date fair value of $4 million and $2 million, respectively, which will be recognized as compensation expense on a straight-line basis over the three year vesting period.

During the first quarter of 2018 and 2017, the Company granted certain employees 133 thousand and 144 thousand Performance Share Units (“PSU”) awards, respectively. PSU awards are designed to align compensation with the Company’s future performance. The PSU awards include a three year performance period ending on December 31, 2020 and December 31, 2019, respectively.  The final number of shares that will vest will be between 0% to 150% of the total PSU awards granted based on the stock performance of the Company as compared to an index of comparable financial institutions and will cliff vest at the end of the performance period.  The PSU awards are measured at fair value on the grant date which will be recognized as compensation expense ratably over the three-year vesting period.  Fair value is determined using a Monte Carlo valuation model developed to value the specific features of the PSU awards, including market based conditions. Inputs into the model include the Company’s historical volatility, the peer average historical volatility, and the correlation coefficient of the volatility.  In addition, inputs also included the share price at the beginning of the measurement period and an estimated total shareholder return for both the Company and the peer group of comparable financial institutions.  Based on the model results, the 133 thousand PSU awards granted during 2018 had a grant date value of $2 million that will cliff vest on December 31, 2020. The 144 thousand PSU awards granted during 2017 had a grant date value of $3 million which will cliff vest on December 31, 2019.

The Company recognized stock based compensation expenses of $2 million and $1 million for the quarters ended June 30, 2018 and 2017, respectively. For the six months ended June 30, 2018 and 2017, the stock based compensation expenses were 3 million and $2 million, respectively.

The Company also maintains a qualified 401(k) plan.  The plan is a retirement savings plan that allows eligible employees to contribute a portion of their wages on a tax-deferred basis under Section 401(k) of the Code. Employees may contribute, through payroll deductions, up to $18,500 if under the age of 50 years and an additional $6,000 “catch-up” contribution for employees 50 years or older. The Company matches 100% of the first 6% of the eligible compensation deferred by employee contributions. The employer funds the 401(k) matching contributions in the form of cash, and participants may direct the Company match to an investment of their choice. The benefit of the Company’s contributions vests immediately. Generally, a participating employee is entitled to distributions from the plans upon termination of employment, retirement, death or disability. The 401(k) expense related to the Company’s qualified plan for the quarters ended June 30, 2018 and 2017 was $137 thousand and $103 thousand, respectively. For the six months ended June 30, 2018 and 2017, the 401(k) expense related to the Company's qualified plan was $251 thousand and $215 thousand, respectively.

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Income Taxes

6 Months Ended

Jun. 30, 2018

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

For the quarter ended June 30, 2018 and year ended December 31, 2017, the Company qualified to be taxed as a REIT under Code Sections 856 through 860. As a REIT, the Company is not subject to federal income tax to the extent that it makes qualifying distributions of taxable income to its stockholders. To maintain qualification as a REIT, the Company must distribute at least 90% of its annual REIT taxable income to its shareholders and meet certain other requirements such as assets it may hold, income it may generate and its shareholder composition. It is generally the Company’s policy to distribute to its shareholders all of the Company’s taxable income.

The state and local tax jurisdictions to which the Company is subject to tax-filing obligations, recognize the Company’s status as a REIT, and therefore, the Company generally does not pay income tax in such jurisdictions. The Company may, however, be subject to certain minimum state and local tax filing fees and its TRSs are subject to federal, state and local taxes. There were no significant income tax expenses for the quarter ended June 30, 2018 and the year ended December 31, 2017. On December 22, 2017, H.R. 1, informally known as the Tax Cuts and Jobs Act (the "TCJA") was enacted. We continue to analyze and monitor the application of the TCJA to our business.

In general, cash dividends declared by the Company will be considered ordinary income to stockholders for income tax purposes. From time to time, a portion of the Company’s dividends may be characterized as capital gains or return of capital distributions.

The Company’s effective tax rate differs from its combined federal, state and city corporate statutory tax rate primarily due to the deduction of dividend distributions required to be paid under Code Section 857(a).

The Company’s 2016, 2015 and 2014 federal, state and local tax returns remain open for examination.

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Credit Risk and Interest Rate Risk

6 Months Ended

Jun. 30, 2018

Offsetting [Abstract]

Credit Risk and Interest Rate Risk

Credit Risk and Interest Rate Risk

The Company’s primary components of market risk are credit risk and interest rate risk. The Company is subject to interest rate risk in connection with its investments in Agency MBS and Non-Agency RMBS, residential mortgage loans, borrowings under repurchase agreements and securitized debt. When the Company assumes interest rate risk, it attempts to minimize interest rate risk through asset selection, hedging and matching the income earned on mortgage assets with the cost of related financing.

The Company attempts to minimize credit risk through due diligence, asset selection and portfolio monitoring. The Company has established a whole loan target market including prime and subprime borrowers, Alt-A documentation, geographic diversification, owner-occupied property, and moderate loan-to-value ratios. These factors are considered to be important indicators of credit risk.

By using derivative instruments and repurchase agreements, the Company is exposed to counterparty credit risk if counterparties to the contracts do not perform as expected. If a counterparty fails to perform on a derivative hedging instrument, the Company’s counterparty credit risk is equal to the amount reported as a derivative asset on its balance sheet to the extent that amount exceeds collateral obtained from the counterparty or, if in a net liability position, the extent to which collateral posted exceeds the liability to the counterparty. The amounts reported as a derivative asset/(liability) are derivative contracts in a gain/(loss) position, and to the extent subject to master netting arrangements, net of derivatives in a loss/(gain) position with the same counterparty and collateral received/(pledged). If the counterparty fails to perform on a repurchase agreement, the Company is exposed to a loss to the extent that the fair value of collateral pledged exceeds the liability to the counterparty. The Company attempts to minimize counterparty credit risk by evaluating and monitoring the counterparty’s credit, executing master netting arrangements and obtaining collateral, and executing contracts and agreements with multiple counterparties to reduce exposure to a single counterparty.

Our repurchase agreements and derivative transactions are governed by underlying agreements that provide for a right of setoff under master netting arrangements, including in the event of default or in the event of bankruptcy of either party to the transactions. The Company presents its assets and liabilities subject to such arrangements on a net basis in our consolidated statements of financial condition. The following table presents information about our liabilities that are subject to such arrangements and can potentially be offset on our consolidated statements of financial condition as of June 30, 2018 and December 31, 2017.

	June 30, 2018
	(dollars in thousands)
	Gross Amounts of Recognized  Assets (Liabilities)			Gross Amounts Offset in the Consolidated Statements of Financial Position			Net Amounts Offset in the Consolidated Statements of Financial Position			Gross Amounts Not Offset with Financial Assets (Liabilities) in the Consolidated Statements of Financial Position
										Financial Instruments		Cash Collateral (Received) Pledged (1)		Net Amount
Repurchase Agreements	$	(9,127,048	)	$	—		$	(9,127,048	)	$	10,626,383	$	—	$	1,499,335
Interest Rate Swaps - Gross Assets	166,115			(42,140		)	123,975			—		16,079		140,054
Interest Rate Swaps - Gross Liabilities	(16,730		)	16,730			—			—		—		—
Treasury Futures - Gross Assets	2,949			—			2,949			—		2,105		5,054
Treasury Futures - Gross Liabilities	—			—			—			—		—		—
Swaptions - Gross Assets	2,417			—			2,417			—		—		2,417
Swaptions - Gross Liabilities	—			—			—			—		—		—
Total Liabilities	$	(8,972,297	)	$	(25,410	)	$	(8,997,707	)	$	10,626,383	$	18,184	$	1,646,860

(1) Included in other assets

	December 31, 2017
	(dollars in thousands)
	Gross Amounts of Recognized  Assets (Liabilities)			Gross Amounts Offset in the Consolidated Statements of Financial Position			Net Amounts Offset in the Consolidated Statements of Financial Position			Gross Amounts Not Offset with Financial Assets (Liabilities) in the Consolidated Statements of Financial Position
										Financial Instruments		Cash Collateral (Received) Pledged (1)		Net Amount
Repurchase Agreements	$	(7,250,452	)	$	—		$	(7,250,452	)	$	8,788,680	$	1,156	$	1,539,384
Interest Rate Swaps - Gross Assets	44,874			(1,617		)	43,257			—		11,570		54,827
Interest Rate Swaps - Gross Liabilities	(1,617		)	1,617			—			—		—		—
Treasury Futures - Gross Assets	3,552			—			3,552			—		376		3,928
Treasury Futures - Gross Liabilities	—			—			—			—		—		—
Swaptions - Gross Assets	2,105			—			2,105			—		—		2,105
Swaptions - Gross Liabilities	(320		)	—			(320		)	—		—		(320		)
Total Liabilities	$	(7,201,858	)	$	—		$	(7,201,858	)	$	8,788,680	$	13,102	$	1,599,924

(1) Included in other assets

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Commitments and Contingencies

6 Months Ended

Jun. 30, 2018

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

From time to time, the Company may become involved in various claims and legal actions arising in the ordinary course of business. In connection with certain re-securitization transactions engaged in by the Company, it has the obligation under certain circumstances to repurchase assets from the VIE upon breach of certain representations and warranties.

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Subsequent Events

6 Months Ended

Jun. 30, 2018

Subsequent Events [Abstract]

Subsequent Events

Subsequent Events

None.

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Summary of the Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2018

Accounting Policies [Abstract]

Basis of Presentation and Consolidation

Basis of Presentation and Consolidation

The accompanying consolidated financial statements and related notes of the Company have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”). In the opinion of management, all adjustments considered necessary for a fair presentation of the Company's financial position, results of operations and cash flows have been included. Certain prior period amounts have been reclassified to conform to the current period's presentation.

The consolidated financial statements include, the Company’s accounts, the accounts of its wholly-owned subsidiaries, and variable interest entities (“VIEs”) in which the Company is the primary beneficiary. All intercompany balances and transactions have been eliminated in consolidation.

The Company uses securitization trusts considered to be VIEs in its securitization and re-securitization transactions. VIEs are defined as entities in which equity investors (i) do not have the characteristics of a controlling financial interest, or (ii) do not have sufficient equity at risk for the entity to finance its activities without additional subordinated financial support from other parties. The entity that consolidates a VIE is known as its primary beneficiary, and is generally the entity with (i) the power to direct the activities that most significantly impact the VIEs’ economic performance, and (ii) the right to receive benefits from the VIE or the obligation to absorb losses of the VIE that could be significant to the VIE. For VIEs that do not have substantial on-going activities, the power to direct the activities that most significantly impact the VIEs’ economic performance may be determined by an entity’s involvement with the design and structure of the VIE.

The trusts are structured as entities that receive principal and interest on the underlying collateral and distribute those payments to the security holders. The assets held by the securitization entities are restricted in that they can only be used to fulfill the obligations of the securitization entity. The Company’s risks associated with its involvement with these VIEs are limited to its risks and rights as a holder of the security it has retained.

Determining the primary beneficiary of a VIE requires judgment. The Company determined that for the securitizations it consolidates, its ownership provides the Company with the obligation to absorb losses or the right to receive benefits from the VIE that could be significant to the VIE. In addition, the Company has the power to direct the activities of the VIEs that most significantly impact the VIEs’ economic performance (“power”) such as rights to direct servicer activity or the Company was determined to have power in connection with its involvement with the structure and design of the VIE.

The Company’s interest in the assets held by these securitization vehicles, which are consolidated on the Company’s Statements of Financial Condition, is restricted by the structural provisions of these trusts, and a recovery of the Company’s investment in the vehicles will be limited by each entity’s distribution provisions. The liabilities of the securitization vehicles, which are also consolidated on the Company’s Statements of Financial Condition, are non-recourse to the Company, and can only be satisfied from each securitization vehicle’s respective asset pool.

The assets of securitization entities are comprised of residential mortgage backed securities (“RMBS”) or residential mortgage loans.

Use of Estimates

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 disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Although the Company’s estimates contemplate current conditions and how it expects them to change in the future, it is reasonably possible that actual conditions could be materially different than anticipated in those estimates, which could have a material adverse impact on the Company’s results of operations and its financial condition. Management has made significant estimates including in accounting for income recognition and OTTI on Agency and Non-Agency RMBS and IO MBS (Note 3), valuation of Agency MBS and Non-Agency RMBS (Notes 3 and 5), residential mortgage loans (Note 4), securitized debt (Note 7) and derivative instruments (Notes 5 and 9). Actual results could differ materially from those estimates.

Income Taxes

Income Taxes

The Company does not have any unrecognized tax positions that would affect its financial statements or require disclosure.

Recent Accounting Pronouncements

Recent Accounting Pronouncements

Income Statement - Reporting Comprehensive Income - (Topic 220)

In February 2018, the FASB issued ASU No. 2018-02, Income Statement - Reporting Comprehensive Income - Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. The amendments in this update allow a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act. Consequently, the amendments eliminate the stranded tax effects resulting from the Tax Cuts and Jobs Act and will improve the usefulness of information reported to financial statement users. However, because the amendments only relate to the reclassification of the income tax effects of the Tax Cuts and Jobs Act, the underlying guidance that requires that the effect of a change in tax laws or rates be included in income from continuing operations is not affected. The amendments in this Update also require certain disclosures about stranded tax effects. The guidance in the ASU is effective for the Company as of January 1, 2019. Early adoption is allowed. The Company is not planning to early adopt and is currently evaluating what impact this update will have on the consolidated financial statements.

Derivatives and Hedging - Targeted improvements to Accounting for Hedging Activities (Topic 815)

In August 2017, the FASB issued ASU No. 2017-12, Derivatives and Hedging - Targeted improvements to Accounting for Hedging Activities. This update is issued with the objective of improving the financial reporting of hedging relationships to better portray the economic results of an entity’s risk management activities in its financial statements. In addition, the amendments in this update make certain targeted improvements to simplify the application of the hedge accounting guidance in current GAAP. The guidance in the ASU is effective for the Company as of January 1, 2019. Early adoption is allowed. The Company is not planning to early adopt and is currently evaluating what impact this update will have on the consolidated financial statements.

Financial Instruments - Credit Losses - (Topic 326)

In June 2016, the FASB issued ASU No. 2016-13, Measurement of Credit Losses on Financial Instruments. This update replaces the current model for recognizing credit losses from an incurred credit loss model to a current expected credit loss (CECL) model for instruments measured at amortized cost and requires entities to record allowances for available-for-sale (AFS) debt securities when the fair value of an AFS debt security is below the amortized cost of the asset rather than reduce the carrying amount, as the Company does under the current OTTI model. This update also simplifies the accounting model for purchased credit-impaired debt securities and loans. The changes in the allowances created in accordance with this update will be recorded in earnings. The update also expands the disclosure requirements regarding the Company's assumptions, models, and methods for estimating the expected credit losses. In addition, the Company will disclose the amortized cost balance for each class of financial asset by credit quality indicator, disaggregated by the year of origination. The guidance in the ASU is effective for the Company as of January 1, 2020. Early adoption is allowed, beginning January 1, 2019. The standard requires entities to record a cumulative-effect adjustment to the statement of financial position as of the beginning of the first reporting period in which the guidance is effective. The Company is currently evaluating what impact this update will have on the consolidated financial statements.

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Mortgage-Backed Securities (Tables)

6 Months Ended

Jun. 30, 2018

Investments, Debt and Equity Securities [Abstract]

Schedule of present amortized cost, fair value and unrealized gain/losses of Company's MBS investments

The tables below present amortized cost, fair value and unrealized gain/losses of Company's MBS investments as of June 30, 2018 and December 31, 2017.

			June 30, 2018
			(dollars in thousands)
	Principal or Notional Value		Total Premium		Total Discount			Amortized Cost		Fair Value		Gross Unrealized Gains		Gross Unrealized Losses			Net Unrealized Gain/(Loss)
Non-Agency RMBS
Senior	$	2,522,667	$	628	$	(1,180,560	)	$	1,342,735	$	2,063,786	$	721,524	$	(473	)	$	721,051
Senior, interest-only	5,282,885		302,960		—			302,960		252,324		26,074		(76,710		)	(50,636		)
Subordinated	365,499		9,842		(170,202		)	205,139		266,830		61,963		(272		)	61,691
Subordinated, interest-only	206,557		9,279		—			9,279		10,482		1,830		(627		)	1,203
Agency MBS
Residential	4,527,730		167,342		—			4,695,072		4,612,920		9,528		(91,680		)	(82,152		)
Commercial	2,300,891		52,422		(4,509		)	2,348,804		2,273,508		944		(76,240		)	(75,296		)
Interest-only	3,010,512		109,938		—			109,938		102,901		954		(7,991		)	(7,037		)
Total	$	18,216,741	$	652,411	$	(1,355,271	)	$	9,013,927	$	9,582,751	$	822,817	$	(253,993	)	$	568,824

			December 31, 2017
			(dollars in thousands)
	Principal or Notional Value		Total Premium		Total Discount			Amortized Cost		Fair Value		Gross Unrealized Gains		Gross Unrealized Losses			Net Unrealized Gain/(Loss)
Non-Agency RMBS
Senior	$	2,733,926	$	540	$	(1,257,103	)	$	1,477,363	$	2,231,415	$	754,234	$	(182	)	$	754,052
Senior, interest-only	4,862,461		262,996		—			262,996		210,850		15,761		(67,907		)	(52,146		)
Subordinated	501,455		10,571		(177,206		)	334,820		401,225		66,704		(299		)	66,405
Subordinated, interest-only	201,378		7,369		—			7,369		7,826		902		(445		)	457
Agency MBS
Residential	2,227,128		123,245		—			2,350,373		2,322,180		5,706		(33,899		)	(28,193		)
Commercial	1,894,594		47,430		(4,685		)	1,937,339		1,938,281		17,041		(16,099		)	942
Interest-only	3,021,840		111,277		—			111,277		104,367		834		(7,744		)	(6,910		)
Total	$	15,442,782	$	563,428	$	(1,438,994	)	$	6,481,537	$	7,216,144	$	861,182	$	(126,575	)	$	734,607

Schedule of changes in accretable yield

The table below presents changes in accretable yield, or the excess of the security’s cash flows expected to be collected over the Company’s investment, solely as it pertains to the Company’s Non-Agency RMBS portfolio accounted for according to the provisions of ASC 310-30.

	For the Quarters Ended						For the Six Months Ended
	June 30, 2018			June 30, 2017			June 30, 2018			June 30, 2017
	(dollars in thousands)						(dollars in thousands)
Balance at beginning of period	$	1,293,996		$	1,513,416		$	1,303,590		$	1,550,110
Purchases	5,734			1,969			5,734			10,185
Yield income earned	(57,786		)	(67,750		)	(117,517		)	(136,577		)
Reclassification (to) from non-accretable difference	31,471			(62,059		)	81,496			(38,107		)
Sales and deconsolidation	(6,775		)	(2,388		)	(6,663		)	(2,423		)
Balance at end of period	$	1,266,640		$	1,383,188		$	1,266,640		$	1,383,188

Schedule of non-agency RMBS having deteriorated credit when acquired

The table below presents the outstanding principal balance and related amortized cost at June 30, 2018 and December 31, 2017 as it pertains to the Company’s Non-Agency RMBS portfolio accounted for according to the provisions of ASC 310-30.

	For the Six Months Ended		For the Year Ended
	June 30, 2018		December 31, 2017
	(dollars in thousands)
Outstanding principal balance:
Beginning of period	$	2,673,350	$	3,138,265
End of period	$	2,476,421	$	2,673,350
Amortized cost:
Beginning of period	$	1,381,839	$	1,695,079
End of period	$	1,249,140	$	1,381,839

Schedule of temporary impairment losses, investments

The following tables present the gross unrealized losses and estimated fair value of the Company’s RMBS by length of time that such securities have been in a continuous unrealized loss position at June 30, 2018 and December 31, 2017. All securities in an unrealized loss position have been evaluated by the Company for OTTI as discussed in Note 2(d) of 2017, Form 10-K.

						June 30, 2018
						(dollars in thousands)
	Unrealized Loss Position for Less than 12 Months						Unrealized Loss Position for 12 Months or More						Total
	Estimated Fair Value		Unrealized Losses			Number of Securities	Estimated Fair Value		Unrealized Losses			Number of Securities	Estimated Fair Value		Unrealized Losses			Number of Securities
Non-Agency RMBS
Senior	$	43,709	$	(473	)	3	$	—	$	—		—	$	43,709	$	(473	)	3
Senior, interest-only	25,400		(4,391		)	31	103,442		(72,319		)	104	128,842		(76,710		)	135
Subordinated	1,016		(272		)	5	—		—			6	1,016		(272		)	11
Subordinated, interest-only	112		(18		)	1	704		(609		)	3	816		(627		)	4
Agency MBS
Residential	1,618,829		(23,966		)	36	1,318,668		(67,714		)	94	2,937,497		(91,680		)	130
Commercial	1,713,531		(60,698		)	506	321,813		(15,542		)	114	2,035,344		(76,240		)	620
Interest-only	12,375		(689		)	7	48,211		(7,302		)	20	60,586		(7,991		)	27
Total	$	3,414,972	$	(90,507	)	589	$	1,792,838	$	(163,486	)	341	$	5,207,810	$	(253,993	)	930

						December 31, 2017
						(dollars in thousands)
	Unrealized Loss Position for Less than 12 Months						Unrealized Loss Position for 12 Months or More						Total
	Estimated Fair Value		Unrealized Losses			Number of Securities	Estimated Fair Value		Unrealized Losses			Number of Securities	Estimated Fair Value		Unrealized Losses			Number of Securities
Non-Agency RMBS
Senior	$	35,229	$	(182	)	1	$	—	$	—		—	$	35,229	$	(182	)	1
Senior, interest-only	28,129		(1,724		)	27	120,120		(66,183		)	120	148,249		(67,907		)	147
Subordinated	235		(38		)	7	6,261		(261		)	5	6,496		(299		)	12
Subordinated, interest-only	—		—			—	945		(445		)	3	945		(445		)	3
Agency MBS
Residential	660,103		(5,197		)	21	1,471,464		(28,702		)	93	2,131,567		(33,899		)	114
Commercial	830,889		(11,695		)	176	161,980		(4,404		)	91	992,869		(16,099		)	267
Interest-only	15,142		(641		)	7	57,875		(7,103		)	24	73,017		(7,744		)	31
Total	$	1,569,727	$	(19,477	)	239	$	1,818,645	$	(107,098	)	336	$	3,388,372	$	(126,575	)	575

Other than temporary impairment, credit losses recognized in earnings

A summary of the OTTI included in earnings for the quarters and six months ended June 30, 2018 and 2017 are presented below.

	For the Quarter Ended						For the Six Months Ended
	June 30, 2018			June 30, 2017			June 30, 2018			June 30, 2017
	(dollars in thousands)						(dollars in thousands)
Total other-than-temporary impairment losses	$	(805	)	$	(749	)	$	(1,099	)	$	(3,462	)
Portion of loss recognized in other comprehensive income (loss)	(8,326		)	(12,760		)	(9,190		)	(28,748		)
Net other-than-temporary credit impairment losses	$	(9,131	)	$	(13,509	)	$	(10,289	)	$	(32,210	)

The following table presents a roll forward of the credit loss component of OTTI on the Company’s Non-Agency RMBS for which a portion of loss was recognized in OCI. The table delineates between those securities that are recognizing OTTI for the first time as opposed to those that have previously recognized OTTI.

	For the Quarters Ended						For the Six Months Ended
	June 30, 2018			June 30, 2017			June 30, 2018			June 30, 2017
	(dollars in thousands)
Cumulative credit loss beginning balance	$	586,056		$	558,229		$	591,521		$	556,485
Additions:
Other-than-temporary impairments not previously recognized	—			12,399			1,140			12,399
Reductions for securities sold or deconsolidated during the period	(4,775		)	—			(4,948		)	(7,443		)
Increases related to other-than-temporary impairments on securities with previously recognized other-than-temporary impairments	9,131			1,109			9,149			17,835
Reductions for increases in cash flows expected to be collected over the remaining life of the securities	(7,751		)	(99		)	(14,201		)	(7,638		)
Cumulative credit impairment loss ending balance	$	582,661		$	571,638		$	582,661		$	571,638

Other than temporary impairment of investments recorded in earnings, significant inputs and assumptions

The significant inputs used to measure the component of OTTI recognized in earnings for the Company’s Non-Agency RMBS for the periods reported are summarized as follows:

	For the Six Months Ended
	June 30, 2018	June 30, 2017
Loss Severity
Weighted Average	66%	62%
Range	34% - 132%	28% - 67%
60+ days delinquent
Weighted Average	23%	19%
Range	16% - 30%	11% - 25%
Credit Enhancement (1)
Weighted Average	32%	19%
Range	0% - 55%	0% - 38%
3 Month CPR
Weighted Average	10%	12%
Range	0% - 39%	2% - 24%
12 Month CPR
Weighted Average	8%	11%
Range	1% - 20%	4% - 19%

(1)Calculated as the combined credit enhancement to the Re-REMIC and underlying from each of their respective capital structures.

Summary of unrealized gains and losses on MBS

The following tables present a summary of unrealized gains and losses at June 30, 2018 and December 31, 2017.

			June 30, 2018
			(dollars in thousands)
	Gross Unrealized Gain Included in Accumulated Other Comprehensive Income		Gross Unrealized Gain Included in Cumulative Earnings		Total Gross Unrealized Gain		Gross Unrealized Loss Included in Accumulated Other Comprehensive Income			Gross Unrealized Loss Included in Cumulative Earnings			Total Gross Unrealized Loss
Non-Agency RMBS
Senior	$	721,524	$	—	$	721,524	$	(473	)	$	—		$	(473	)
Senior, interest-only	—		26,074		26,074		—			(76,710		)	(76,710		)
Subordinated	58,887		3,076		61,963		(272		)	—			(272		)
Subordinated, interest-only	—		1,830		1,830		—			(627		)	(627		)
Agency MBS
Residential	2,316		7,212		9,528		(70,382		)	(21,298		)	(91,680		)
Commercial	686		258		944		(40,635		)	(35,605		)	(76,240		)
Interest-only	—		954		954		—			(7,991		)	(7,991		)
Total	$	783,413	$	39,404	$	822,817	$	(111,762	)	$	(142,231	)	$	(253,993	)

			December 31, 2017
			(dollars in thousands)
	Gross Unrealized Gain Included in Accumulated Other Comprehensive Income		Gross Unrealized Gain Included in Cumulative Earnings		Total Gross Unrealized Gain		Gross Unrealized Loss Included in Accumulated Other Comprehensive Income			Gross Unrealized Loss Included in Cumulative Earnings			Total Gross Unrealized Loss
Non-Agency RMBS
Senior	$	754,234	$	—	$	754,234	$	(182	)	$	—		$	(182	)
Senior, interest-only	—		15,761		15,761		—			(67,907		)	(67,907		)
Subordinated	62,989		3,715		66,704		(102		)	(197		)	(299		)
Subordinated, interest-only	—		902		902		—			(445		)	(445		)
Agency MBS
Residential	5,706		—		5,706		(29,083		)	(4,816		)	(33,899		)
Commercial	15,462		1,579		17,041		(12,122		)	(3,977		)	(16,099		)
Interest-only	—		834		834		—			(7,744		)	(7,744		)
Total	$	838,391	$	22,791	$	861,182	$	(41,489	)	$	(85,086	)	$	(126,575	)

Residential mortgage backed securities collateral characteristics

The following tables provide a summary of the Company’s MBS portfolio at June 30, 2018 and December 31, 2017.

	June 30, 2018
	Principal or Notional Value at Period-End (dollars in thousands)		Weighted Average Amortized Cost Basis		Weighted Average Fair Value		Weighted Average Coupon		Weighted Average Yield at Period-End (1)
Non-Agency RMBS
Senior	$	2,522,667	$	53.23	$	81.81	4.8	%	17.7	%
Senior, interest-only	5,282,885		5.73		4.78		1.4	%	9.1	%
Subordinated	365,499		56.13		73.00		4.0	%	10.8	%
Subordinated, interest-only	206,557		4.49		5.07		0.9	%	11.8	%
Agency MBS
Residential pass-through	4,527,730		103.70		101.88		4.0	%	3.4	%
Commercial pass-through	2,300,891		102.08		98.81		3.6	%	3.4	%
Interest-only	3,010,512		3.65		3.42		0.7	%	3.3	%

(1) Bond Equivalent Yield at period end.

	December 31, 2017
	Principal or Notional Value at Period-End (dollars in thousands)		Weighted Average Amortized Cost Basis		Weighted Average Fair Value		Weighted Average Coupon		Weighted Average Yield at Period-End (1)
Non-Agency RMBS
Senior	$	2,733,926	$	54.04	$	81.62	4.6	%	16.7	%
Senior, interest-only	4,862,461		5.41		4.34		1.3	%	8.0	%
Subordinated	501,455		66.77		80.01		4.1	%	9.6	%
Subordinated, interest-only	201,378		3.66		3.89		0.8	%	11.8	%
Agency MBS
Residential pass-through	2,227,128		105.53		104.27		3.8	%	2.9	%
Commercial pass-through	1,894,594		102.26		102.31		3.6	%	3.2	%
Interest-only	3,021,840		3.68		3.45		0.7	%	3.4	%

(1) Bond Equivalent Yield at period end.

Credit ratings of residential MBS

The following table presents the weighted average credit rating of the Company’s Non-Agency RMBS portfolio at June 30, 2018 and December 31, 2017.

	June 30, 2018		December 31, 2017
AAA	0.3	%	0.3	%
AA	0.9	%	0.3	%
A	0.1	%	0.6	%
BBB	1.4	%	1.9	%
BB	2.0	%	2.5	%
B	2.1	%	2.3	%
Below B	57.8	%	59.6	%
Not Rated	35.4	%	32.5	%
Total	100.0	%	100.0	%

Schedule of MBS by estimated weighted average life classification

The following tables provide a summary of the fair value and amortized cost of the Company’s MBS at June 30, 2018 and December 31, 2017 according to their estimated weighted-average life classifications. The weighted-average lives of the MBS in the tables below are based on lifetime expected prepayment rates using an industry prepayment model for the Agency MBS portfolio and the Company’s prepayment assumptions for the Non-Agency RMBS. The prepayment model considers current yield, forward yield, steepness of the interest rate curve, current mortgage rates, mortgage rates of the outstanding loan, loan age, margin, and volatility.

	June 30, 2018
	(dollars in thousands)
	Weighted Average Life
	Less than one year		Greater than one year and less than five years		Greater than five years and less than ten years		Greater than ten years		Total
Fair value
Non-Agency RMBS
Senior	$	5,461	$	536,951	$	816,498	$	704,876	$	2,063,786
Senior interest-only	6		47,491		95,502		109,325		252,324
Subordinated	3,891		44,590		126,300		92,049		266,830
Subordinated interest-only	—		7,954		333		2,195		10,482
Agency MBS
Residential	—		—		4,600,496		12,424		4,612,920
Commercial	—		15,663		19,123		2,238,722		2,273,508
Interest-only	11,313		64,338		22,794		4,456		102,901
Total fair value	$	20,671	$	716,987	$	5,681,046	$	3,164,047	$	9,582,751
Amortized cost
Non-Agency RMBS
Senior	$	5,347	$	387,067	$	489,371	$	460,950	$	1,342,735
Senior interest-only	102		60,821		120,956		121,081		302,960
Subordinated	3,838		34,758		88,839		77,704		205,139
Subordinated interest-only	—		6,270		838		2,171		9,279
Agency MBS
Residential	—		—		4,682,192		12,880		4,695,072
Commercial	—		15,769		20,374		2,312,661		2,348,804
Interest-only	11,264		69,648		24,895		4,131		109,938
Total amortized cost	$	20,551	$	574,333	$	5,427,465	$	2,991,578	$	9,013,927

	December 31, 2017
	(dollars in thousands)
	Weighted Average Life
	Less than one year		Greater than one year and less than five years		Greater than five years and less than ten years		Greater than ten years		Total
Fair value
Non-Agency RMBS
Senior	$	2,179	$	681,086	$	910,234	$	637,916	$	2,231,415
Senior interest-only	19		54,107		72,702		84,022		210,850
Subordinated	—		75,495		121,555		204,175		401,225
Subordinated interest-only	—		7,165		661		—		7,826
Agency MBS
Residential	—		21,777		2,300,403		—		2,322,180
Commercial	—		45,770		16,559		1,875,952		1,938,281
Interest-only	—		74,490		25,271		4,606		104,367
Total fair value	$	2,198	$	959,890	$	3,447,385	$	2,806,671	$	7,216,144
Amortized cost
Non-Agency RMBS
Senior	$	2,124	$	493,965	$	569,458	$	411,816	$	1,477,363
Senior interest-only	1,271		73,758		94,145		93,822		262,996
Subordinated	—		61,987		91,044		181,789		334,820
Subordinated interest-only	—		6,355		1,014		—		7,369
Agency MBS
Residential	—		22,069		2,328,304		—		2,350,373
Commercial	—		47,170		17,176		1,872,993		1,937,339
Interest-only	—		79,356		27,582		4,339		111,277
Total amortized cost	$	3,395	$	784,660	$	3,128,723	$	2,564,759	$	6,481,537

Schedule of collateral characteristics of underlying Mortgages of Non-Agency RMBS portfolio

The Non-Agency RMBS in the Portfolio have the following collateral characteristics at June 30, 2018 and December 31, 2017.

	June 30, 2018				December 31, 2017
Weighted average maturity (years)		20.4				20.7
Weighted average amortized loan to value (1)		63.3		%		64.4		%
Weighted average FICO (2)		703				697
Weighted average loan balance (in thousands)		$	324			$	314
Weighted average percentage owner occupied		84.5		%		84.4		%
Weighted average percentage single family residence		65.7		%		66.3		%
Weighted average current credit enhancement		1.5		%		2.2		%
Weighted average geographic concentration of top four states	CA	32.4		%	CA	31.7		%
	NY	8.4		%	NY	8.5		%
	FL	8.1		%	FL	8.3		%
	NJ	2.6		%	NJ	2.7		%

(1) Value represents appraised value of the collateral at the time of loan origination.

(2) FICO as determined at the time of loan origination.

Schedule of percentage of Non-Agency RMBS by year originated

The table below presents the origination year of the underlying loans related to the Company’s portfolio of Non-Agency RMBS at June 30, 2018 and December 31, 2017.

Origination Year	June 30, 2018		December 31, 2017
2003 and prior	4.8	%	3.6	%
2004	6.5	%	4.3	%
2005	20.1	%	20.8	%
2006	39.4	%	38.2	%
2007	23.6	%	30.4	%
2008	0.3	%	1.8	%
2009 and later	5.3	%	0.9	%
Total	100.0	%	100.0	%

Schedule of gains and losses from sales of investments

The proceeds and gross realized gains and gross realized losses from sales of investments for the quarters and six months ended June 30, 2018 and 2017 are as follows:

	For the Quarter Ended						For the Six Months Ended
	June 30, 2018			June 30, 2017			June 30, 2018			June 30, 2017
	(dollars in thousands)
Proceeds from sales	$	32,551		$	153,681		$	32,551		$	173,743
Gross realized gains	4,383			5,380			4,383			10,566
Gross realized losses	(2,216		)	(839		)	(2,216		)	(858		)
Net realized gain (loss)	$	2,167		$	4,541		$	2,167		$	9,708

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Loans Held for Investment (Tables)

6 Months Ended

Jun. 30, 2018

Securitized Loans Held For Investment By Consolidated Variable Interest Entities [Line Items]

Summary of changes in carrying value of securitized loans held for investment carried at fair value

The following table provides a summary of the changes in the carrying value of Loans held for investment at fair value at June 30, 2018 and December 31, 2017:

	For the Six Months Ended			For the Year Ended
	June 30, 2018			December 31, 2017
	(dollars in thousands)
Balance, beginning of period	$	13,678,263		$	8,753,653
Purchases	924,283			6,539,765
Principal paydowns	(944,146		)	(1,788,409		)
Sales and settlements	(389,798		)	2,876
Net periodic accretion (amortization)	(43,594		)	(35,803		)
Change in fair value	21,513			206,181
Balance, end of period	$	13,246,521		$	13,678,263

Schedule of percentage of securitized loans held for investment carried at fair value by year originated

The loan portfolio for all residential mortgages were originated during the following years:

Origination Year	June 30, 2018		December 31, 2017
2002 and prior	7.5	%	7.5	%
2003	6.7	%	6.7	%
2004	14.4	%	14.6	%
2005	20.1	%	20.4	%
2006	23.3	%	23.1	%
2007	19.1	%	19.0	%
2008	6.0	%	6.0	%
2009	0.8	%	0.7	%
2010 and later	2.1	%	2.0	%
Total	100.0	%	100.0	%

Schedule of securitized loans held for investment types and characteristics of underlying collateral

The following table summarizes the outstanding principal balance of the residential loan portfolio which are 30 days delinquent and greater as reported by the servicer at June 30, 2018 and December 31, 2017.

	30 Days Delinquent	60 Days Delinquent	90+ Days Delinquent	Bankruptcy	Foreclosure	REO	Total	Unpaid Principal/Notional
	(dollars in thousands)
June 30, 2018	$797,730	$288,255	$396,269	$244,955	$262,100	$34,519	$2,023,828	$13,083,186
% of Unpaid Principal Balance	6.1%	2.2%	3.0%	1.9%	2.0%	0.3%	15.5%
December 31, 2017	$888,535	$353,810	$435,876	$272,778	$200,376	$31,008	$2,182,383	$13,525,820
% of Unpaid Principal Balance	6.6%	2.6%	3.2%	2.0%	1.5%	0.2%	16.1%

Seasoned Subprime Residential Mortgage Loans

Securitized Loans Held For Investment By Consolidated Variable Interest Entities [Line Items]

Schedule of securitized loans held for investment carried at fair value key characteristics of underlying collateral

The following table presents a summary of key characteristics of the residential loan portfolio at June 30, 2018 and December 31, 2017:

	June 30, 2018				December 31, 2017
Number of loans		144,451				149,172
Weighted average maturity (years)		18.8				18.8
Weighted average loan to value (1)		87.5		%		88.0		%
Weighted average FICO (1)		630				631
Weighted average loan balance (in thousands)		$	91			$	91
Weighted average percentage owner occupied		92.8		%		95.0		%
Weighted average percentage single family residence		86.2		%		86.0		%
Weighted average geographic concentration of top five states	CA	9.1		%	CA	9.0		%
	FL	7.2		%	FL	7.2		%
	OH	6.0		%	OH	6.1		%
	NY	5.6		%	PA	5.6		%
	PA	5.6		%	VA	5.5		%

(1) As provided by the Trustee.

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Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2018

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Schedule of unpaid principal, fair value and impact of change in fair value

The table below shows the unpaid principal, fair value and impact of change in fair value on each of the financial instruments carried with fair value option as of June 30, 2018 and December 31, 2017 respectively:

	June 30, 2018
	(dollars in thousands)
	Unpaid Principal/ Notional	Fair Value		Quarter to Date Gain/(Loss) on Change in Fair Value			Year to Date Gain/(Loss) on Change in Fair Value
Assets:
Non-agency RMBS
Subordinated	N/A	$	12,918	$	(42	)	$	(440	)
Senior, interest-only	5,282,885	252,324		3,464			1,511
Subordinated, interest-only	206,557	10,482		335			746
Agency MBS
Residential Pass-through	3,010,558	3,075,138		3,081			(9,270		)
Commercial Pass-through	1,004,493	984,591		(12,534		)	(32,948		)
Interest-only	3,010,512	102,901		46			(127		)
Loans held for investment, at fair value	13,083,186	13,246,521		(20,082		)	21,513
Liabilities:
Securitized debt at fair value, collateralized by loans held for investment	9,388,837	9,340,368		7,369			15,118

	December 31, 2017
	(dollars in thousands)
	Unpaid Principal/ Notional	Fair Value		Quarter to Date Gain/(Loss) on Change in Fair Value			Year to Date Gain/(Loss) on Change in Fair Value
Assets:
Non-agency RMBS
Subordinated	N/A	$	13,993	$	(545	)	$	1,246
Senior, interest-only	4,862,461	210,850		3,156			(13,290		)
Subordinated, interest-only	201,378	7,826		1,836			2,311
Agency MBS
Residential Pass-through	577,522	602,829		(2,359		)	(4,816		)
Commercial Pass-through	564,379	570,105		(546		)	(2,398		)
Interest-only	3,021,840	104,367		(367		)	465
Loans held for investment, at fair value	13,525,820	13,678,263		(65,643		)	206,181
Liabilities:
Securitized debt at fair value, collateralized by loans held for investment	9,395,854	9,388,657		16,831			(78,289		)

Schedule of financial assets and liabilities carried at fair value on a recurring basis

The Company’s financial assets and liabilities carried at fair value on a recurring basis, including the level in the fair value hierarchy, at June 30, 2018 and December 31, 2017 are presented below.

	June 30, 2018
	(dollars in thousands)
	Level 1		Level 2		Level 3		Counterparty and Cash Collateral, netting			Total
Assets:
Non-Agency RMBS, at fair value	$	—	$	—	$	2,593,422	$	—		$	2,593,422
Agency MBS, at fair value	—		6,989,329		—		—			6,989,329
Loans held for investment, at fair value	—		—		13,246,521		—			13,246,521
Derivatives	2,949		168,532		—		(42,140		)	129,341
Liabilities:
Securitized debt at fair value, collateralized by loans held for investment	—		—		9,340,368		—			9,340,368
Derivatives	—		16,730		—		(16,730		)	—

	December 31, 2017
	(dollars in thousands)
	Level 1		Level 2		Level 3	Counterparty and Cash Collateral, netting			Total
Assets:
Non-Agency RMBS, at fair value	$	—	$	—	2,851,316	$	—		$	2,851,316
Agency MBS, at fair value	—		4,364,828		—	—			4,364,828
Loans held for investment, at fair value	—		—		13,678,263	—			13,678,263
Derivatives	3,553		46,978		—	(1,617		)	48,914
Liabilities:
Securitized debt at fair value, collateralized by loans held for investment	—		—		9,388,657	—			9,388,657
Derivatives	—		1,937		—	(1,617		)	320

Summary of the changes in the fair value of securities classified as Level 3

The table below provides a summary of the changes in the fair value of securities classified as Level 3 at June 30, 2018 and December 31, 2017.

Fair Value Reconciliation, Level 3
	For the Six Months Ended, June 30, 2018
	(dollars in thousands)
	Non-Agency RMBS			Loans held for investment			Securitized Debt
Beginning balance Level 3 assets	$	2,851,316		$	13,678,263		$	9,388,657
Transfers in to Level 3 assets	—			—			—
Transfers out of Level 3 assets	—			—			—
Purchases of assets/ issuance of debt	92,017			924,283			1,170,009
Principal payments	(327,923		)	(944,146		)	(894,694		)
Sales and Settlements	(32,379		)	(389,798		)	(293,460		)
Accretion (amortization) of purchase discounts	53,895			(43,594		)	(4,969		)
Gains (losses) included in net income
Other than temporary credit impairment losses	(10,289		)	—			—
Realized gains (losses) on sales and settlements	2,244			—			(10,057		)
Net unrealized gains (losses) included in income	1,815			21,513			(15,118		)
Gains (losses) included in other comprehensive income
Total unrealized gains (losses) for the period	(37,274		)	—			—
Ending balance Level 3 assets	$	2,593,422		$	13,246,521		$	9,340,368

Fair Value Reconciliation, Level 3
	For the Year Ended, December 31, 2017
	(dollars in thousands)
	Non-Agency RMBS			Loans held for investment			Securitized Debt
Beginning balance Level 3 assets	$	3,330,063		$	8,753,653		$	6,941,097
Transfers in to Level 3 assets	6,112			—			—
Transfers out of Level 3 assets	—			—			—
Purchases of assets/ issuance of debt	78,400			6,539,765			5,173,430
Principal payments	(568,339		)	(1,788,409		)	(1,787,368		)
Sales and Settlements	(68,162		)	2,876			(1,056,765		)
Accretion (amortization) of purchase discounts	120,119			(35,803		)	4,701
Gains (losses) included in net income
Other than temporary credit impairment losses	(59,881		)	—			—
Realized gains (losses) on sales and settlements	12,031			—			35,273
Net unrealized gains (losses) included in income	(9,733		)	206,181			78,289
Gains (losses) included in other comprehensive income
Total unrealized gains (losses) for the period	10,706			—			—
Ending balance Level 3 assets	$	2,851,316		$	13,678,263		$	9,388,657

A summary of the significant inputs used to estimate the fair value of securitized debt at fair value, collateralized by loans held for investment

A summary of the significant inputs used to estimate the fair value of securitized debt at fair value, collateralized by loans held for investment, as of June 30, 2018 and December 31, 2017 follows:

		June 30, 2018				December 31, 2017
		Significant Inputs				Significant Inputs
	Weighted Average Discount Rate	CPR Range	CDR Range	Loss Severity Range	Weighted Average Discount Rate	CPR Range	CDR Range	Loss Severity Range
Securitized debt at fair value, collateralized by loans held for investment	4.4%	6% - 15%	0% - 8%	35% - 60%	4.1%	6% - 15%	0% - 6%	35% - 60%

Schedule of carrying value and fair value of financial instruments not carried at fair value on a recurring basis

The following table presents the carrying value and fair value, as described above, of the Company’s financial instruments not carried at fair value on a recurring basis at June 30, 2018 and December 31, 2017.

	June 30, 2018
	(dollars in thousands)
	Level in Fair Value Hierarchy	Carrying Amount	Fair Value
Repurchase agreements	2	9,127,048	9,151,213
Securitized debt, collateralized by Non-Agency RMBS	3	179,742	161,707

	December 31, 2017
	(dollars in thousands)
	Level in Fair Value Hierarchy	Carrying Amount	Fair Value
Repurchase agreements	2	7,250,452	7,269,193
Securitized debt, collateralized by Non-Agency RMBS	3	205,780	192,259

Non-agency MBS

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

A summary of the significant inputs used to estimate the fair value of securitized debt at fair value, collateralized by loans held for investment

A summary of the significant inputs used to estimate the fair value of Non-Agency RMBS held for investment at fair value as of June 30, 2018 and December 31, 2017 follows:

	June 30, 2018				December 31, 2017
	Significant Inputs				Significant Inputs
	Weighted Average Discount Rate	CPR	CDR	Loss Severity	Weighted Average Discount Rate	CPR	CDR	Loss Severity
		Range				Range
Non-Agency RMBS
Senior	4.6%	2% -22%	0% -52%	35% -95%	4.4%	1% -45%	0% -55%	35% -89%
Senior interest-only	10.0%	4% -31%	0% -59%	35% -95%	11.2%	3% -25%	0% -50%	35% -95%
Subordinated	5.4%	1% -23%	0% -45%	10% -71%	5.8%	1% -20%	0% -33%	35% -69%
Subordinated interest-only	10.4%	4% -25%	0% -15%	35% -58%	12.0%	6% -22%	0% -9%	35% -63%

Loans Held for Investment at Fair Value

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

A summary of the significant inputs used to estimate the fair value of securitized debt at fair value, collateralized by loans held for investment

A summary of the significant inputs used to estimate the fair value of Loans held for investment collateralized by seasoned subprime mortgages at fair value as of June 30, 2018 and December 31, 2017 follows:

	June 30, 2018	December 31, 2017
Factor:
Coupon
Base Rate	5.0%	4.8%
Actual	6.9%	6.9%
FICO
Base Rate	636	636
Actual	627	627
Loan-to-value (LTV)
Base Rate	88%	89%
Actual	88%	88%
Loan Characteristics:
Occupancy
Owner Occupied	93%	95%
Investor	1%	1%
Secondary	6%	4%
Property Type
Single family	87%	87%
Manufactured housing	4%	4%
Multi-family/mixed use/other	9%	9%

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Repurchase Agreements (Tables)

6 Months Ended

Jun. 30, 2018

Banking and Thrift [Abstract]

Schedule of repurchase agreements

The repurchase agreements outstanding, weighted average borrowing rates, weighted average remaining maturities, average daily balances and the fair value of collateral pledged as of June 30, 2018 and December 31, 2017 were:

	June 30, 2018			December 31, 2017
Repurchase agreements outstanding secured by:
Agency MBS (in thousands)	$	5,569,418		$	3,202,056
Non-agency MBS and Loans held for investment (in thousands)	3,557,630			4,048,396
Total:	$	9,127,048		$	7,250,452
Average balance of Repurchase agreements secured by:
Agency MBS (in thousands)	$	3,907,750		$	3,120,474
Non-agency MBS and Loans held for investment (in thousands)	3,893,703			3,203,700
Total:	$	7,801,453		$	6,324,174
Average borrowing rate of Repurchase agreements secured by:
Agency MBS	2.09		%	1.47		%
Non-agency MBS and Loans held for investment	4.02		%	3.41		%
Average remaining maturity of Repurchase agreements secured by:
Agency MBS	24 Days			28 Days
Non-agency MBS and Loans held for investment	98 Days			93 Days
Average original maturity of Repurchase agreements secured by:
Agency MBS	66 Days			87 Days
Non-agency MBS and Loans held for investment	124 Days			123 Days
MBS pledged as collateral at fair value on Repurchase agreements:
Agency MBS (in thousands)	$	5,954,878		$	3,450,123
Non-agency MBS and Loans held for investment (in thousands)	4,671,505			5,338,557
Total:	$	10,626,383		$	8,788,680

At June 30, 2018 and December 31, 2017, the repurchase agreements collateralized by MBS and Loans held for investment had the following remaining maturities.

	June 30, 2018		December 31, 2017
	(dollars in thousands)
Overnight	$	—	$	—
1 to 29 days	4,757,404		4,745,342
30 to 59 days	1,915,294		1,206,769
60 to 89 days	1,460,284		592,865
90 to 119 days	90,183		—
Greater than or equal to 120 days	903,883		705,476
Total	$	9,127,048	$	7,250,452

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Securitized Debt (Tables)

6 Months Ended

Jun. 30, 2018

Debt Instrument [Line Items]

Schedule of callable debt

The following table presents the par value of the callable debt by year at June 30, 2018. 

June 30, 2018
(dollars in thousands)
Year	Principal
2018	$	560,814
2019	360,602
2020	4,621,456
2021	3,197,192
2022	300,973
2023	142,144
Total	$	9,183,181

Non-agency MBS

Debt Instrument [Line Items]

Schedule of maturities of long-term debt

The following table presents the estimated principal repayment schedule of the securitized debt collateralized by Non-Agency RMBS at June 30, 2018 and December 31, 2017, based on expected cash flows of the residential mortgage loans or RMBS, as adjusted for projected losses on the underlying collateral of the debt. All of the securitized debt recorded in the Company’s Consolidated Statements of Financial Condition is non-recourse to the Company.

	June 30, 2018		December 31, 2017
	(dollars in thousands)
Within One Year	$	30,923	$	42,217
One to Three Years	37,753		45,916
Three to Five Years	11,461		16,524
Greater Than Five Years	5,600		4,867
Total	$	85,737	$	109,524

Loans held for investment

Debt Instrument [Line Items]

Schedule of maturities of long-term debt

The following table presents the estimated principal repayment schedule of the securitized debt collateralized by loans held for investment at June 30, 2018 and December 31, 2017, based on expected cash flows of the residential mortgage loans or RMBS, as adjusted for projected losses on the underlying collateral of the debt. All of the securitized debt recorded in the Company’s Consolidated Statements of Financial Condition is non-recourse to the Company.

	June 30, 2018		December 31, 2017
	(dollars in thousands)
Within One Year	$	1,785,710	$	1,819,018
One to Three Years	2,818,626		2,872,572
Three to Five Years	2,110,377		2,140,434
Greater Than Five Years	2,493,804		2,439,872
Total	$	9,208,517	$	9,271,896

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Consolidated Securitization Vehicles and Other Variable Interest Entities (Tables)

6 Months Ended

Jun. 30, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of assets and liabilities related to the consolidated VIEs

The table below reflects the assets and liabilities recorded in the Consolidated Statements of Financial Condition related to the consolidated VIEs as of June 30, 2018 and December 31, 2017.

	June 30, 2018		December 31, 2017
	(dollars in thousands)
Assets:
Non-Agency RMBS, at fair value	$	1,280,378	$	1,579,793
Loans held for investment, at fair value	13,045,302		13,263,338
Accrued interest receivable	75,390		75,489
Other assets	54,708		68,844
Liabilities:
Securitized debt, collateralized by Non-Agency RMBS	$	179,742	$	205,780
Securitized debt at fair value, collateralized by loans held for investment	9,340,368		9,388,657
Accrued interest payable	35,754		33,870
Other liabilities	3,285		3,513

Schedule of Income, OTTI and expense amounts related to consolidated VIEs

Income, OTTI and expense amounts related to consolidated VIEs recorded in the Consolidated Statements of Operations is presented in the tables below.

	For the Quarters Ended
	June 30, 2018			June 30, 2017
	(dollars in thousands)
Interest income, Assets of consolidated VIEs	$	229,746		$	234,437
Interest expense, Non-recourse liabilities of VIEs	99,507			105,723
Net interest income	$	130,239		$	128,714
Total other-than-temporary impairment losses	$	(351	)	$	(696	)
Portion of loss recognized in other comprehensive income (loss)	(8,561		)	(12,146		)
Net other-than-temporary credit impairment losses	$	(8,912	)	$	(12,842	)
Servicing fees	$	9,722		$	10,890

	For the Six Months Ended
	June 30, 2018			June 30, 2017
	(dollars in thousands)
Interest income, Assets of consolidated VIEs	$	464,772		$	427,426
Interest expense, Non-recourse liabilities of VIEs	199,121			188,407
Net interest income	$	265,651		$	239,019
Total other-than-temporary impairment losses	$	(351	)	$	(1,109	)
Portion of loss recognized in other comprehensive income (loss)	(8,561		)	(25,613		)
Net other-than-temporary credit impairment losses	$	(8,912	)	$	(26,722	)
Servicing fees	$	20,133		$	20,478

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Derivative Instruments (Tables)

6 Months Ended

Jun. 30, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of location and fair value of the derivatives

The table below summarizes the location and fair value of the derivatives reported in the Consolidated Statements of Financial Condition after counterparty netting and posting of cash collateral as of June 30, 2018 and December 31, 2017.

			June 30, 2018
			Derivative Assets			Derivative Liabilities
Derivative Instruments	Notional Amount Outstanding		Location on Consolidated Statements of Financial Condition	Net Estimated Fair Value/Carrying Value		Location on Consolidated Statements of Financial Condition	Net Estimated Fair Value/Carrying Value
			(dollars in thousands)
Interest Rate Swaps	$	7,692,400	Derivatives, at fair value, net	$	123,975	Derivatives, at fair value, net	$	—
Swaptions	53,000		Derivatives, at fair value, net	2,417		Derivatives, at fair value, net	—
Treasury Futures	619,700		Derivatives, at fair value, net	2,949		Derivatives, at fair value, net	—
Total	$	8,365,100		$	129,341		$	—

			December 31, 2017
			Derivative Assets			Derivative Liabilities
Derivative Instruments	Notional Amount Outstanding		Location on Consolidated Statements of Financial Condition	Net Estimated Fair Value/Carrying Value		Location on Consolidated Statements of Financial Condition	Net Estimated Fair Value/Carrying Value
			(dollars in thousands)
Interest Rate Swaps	$	3,816,400	Derivatives, at fair value, net	$	43,257	Derivatives, at fair value, net	$	—
Swaptions	391,000		Derivatives, at fair value, net	2,105		Derivatives, at fair value, net	(320		)
Treasury Futures	619,700		Derivatives, at fair value, net	3,552		Derivatives, at fair value, net	—
Total	$	4,827,100		$	48,914		$	(320	)

Schedule of derivative instruments effects on operating results

The effect of the Company’s derivatives on the Consolidated Statements of Operations is presented below.

		Net gains (losses) on derivatives for the quarters ended
Derivative Instruments	Location on Consolidated Statements of Operations and Comprehensive Income	June 30, 2018			June 30, 2017
		(dollars in thousands)
Interest Rate Swaps	Net unrealized gains (losses) on derivatives	$	21,165		$	4,377
Interest Rate Swaps	Net realized gains (losses) on derivatives (1)	1,246			(19,629		)
Treasury Futures	Net unrealized gains (losses) on derivatives	5,984			2,179
Treasury Futures	Net realized gains (losses) on derivatives	(2,210		)	(6,914		)
Swaptions	Net unrealized gains (losses) on derivatives	(1,254		)	(754		)
Swaptions	Net realized gains (losses) on derivatives	(429		)	(1,081		)
Total		$	24,502		$	(21,822	)

(1) Includes loss on termination of interest rate swaps of $16 million for the quarter ended June 30, 2017. There were no swaps terminations during the quarter ended June 30, 2018.

		Net gains (losses) on derivatives for the six months ended
Derivative Instruments	Location on Consolidated Statements of Operations and Comprehensive Income	June 30, 2018			June 30, 2017
		(dollars in thousands)
Interest Rate Swaps	Net unrealized gains (losses) on derivatives	$	106,129		$	10,693
Interest Rate Swaps	Net realized gains (losses) on derivatives (1)	(1,365		)	(23,733		)
Treasury Futures	Net unrealized gains (losses) on derivatives	(604		)	(388		)
Treasury Futures	Net realized gains (losses) on derivatives	14,215			(8,999		)
Swaptions	Net unrealized gains (losses) on derivatives	1,789			393
Swaptions	Net realized gains (losses) on derivatives	(1,157		)	(4,250		)
Total		$	119,007		$	(26,284	)

(1) Includes loss on termination of interest rate swaps of $16 million for the six months ended June 30, 2017. There were no swaps terminations during the six months ended June 30, 2018.

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Capital Stock (Tables)

6 Months Ended

Jun. 30, 2018

Equity [Abstract]

Schedule of earnings per share

Earnings per share for the quarters and six months ended June 30, 2018 and 2017, respectively, are computed as follows:

	For the Quarter Ended
	June 30, 2018		June 30, 2017
	(dollars in thousands)
Numerator:
Net income available to common shareholders	$	108,708	$	105,617
Effect of dilutive securities:	—		—
Dilutive net income available to common shareholders	$	108,708	$	105,617
Denominator:
Weighted average basic shares	186,994,743		187,779,406
Effect of dilutive securities	427,402		363,145
Weighted average dilutive shares	187,422,145		188,142,551
Net income per average share attributable to common stockholders - Basic	$	0.58	$	0.56
Net income per average share attributable to common stockholders - Diluted	$	0.58	$	0.56

	For the Six Months Ended
	June 30, 2018		June 30, 2017
	(dollars in thousands)
Numerator:
Net income available to common shareholders	$	338,316	$	263,141
Effect of dilutive securities:	—		—
Dilutive net income available to common shareholders	$	338,316	$	263,141
Denominator:
Weighted average basic shares	187,272,469		187,770,626
Effect of dilutive securities	465,974		398,467
Weighted average dilutive shares	187,738,443		188,169,093
Net income per average share attributable to common stockholders - Basic	$	1.81	$	1.40
Net income per average share attributable to common stockholders - Diluted	$	1.80	$	1.40

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Accumulated Other Comprehensive Income (Tables)

6 Months Ended

Jun. 30, 2018

Equity [Abstract]

Schedule of components of AOCI

The following table presents the changes in the components of Accumulated Other Comprehensive Income (“AOCI”) for the six months ended June 30, 2018 and 2017:

	June 30, 2018
	(dollars in thousands)
	Unrealized gains (losses) on available-for-sale securities, net			Total Accumulated OCI Balance
Balance as of December 31, 2017	$	796,902		$	796,902
OCI before reclassifications	(131,157		)	(131,157		)
Amounts reclassified from AOCI	5,906			5,906
Net current period OCI	(125,251		)	(125,251		)
Balance as of June 30, 2018	$	671,651		$	671,651

	June 30, 2017
	(dollars in thousands)
	Unrealized gains (losses) on available-for-sale securities, net		Total Accumulated OCI Balance
Balance as of December 31, 2016	$	718,106	$	718,106
OCI before reclassifications	37,744		37,744
Amounts reclassified from AOCI	24,433		24,433
Net current period OCI	62,177		62,177
Balance as of June 30, 2017	$	780,283	$	780,283

Schedule of reclassifications from AOCI

The following table presents the details of the reclassifications from AOCI for the six months ended June 30, 2018 and 2017:

	June 30, 2018			June 30, 2017
Details about Accumulated OCI Components	Amounts Reclassified from Accumulated OCI			Amounts Reclassified from Accumulated OCI			Affected Line on the Consolidated Statements Of Operations
Unrealized gains and losses on available-for-sale securities
	$	4,383		$	7,777		Net realized gains (losses) on sales of investments
	(10,289		)	(32,210		)	Net other-than-temporary credit impairment losses
	$	(5,906	)	$	(24,433	)	Income before income taxes
	—			—			Income taxes
	$	(5,906	)	$	(24,433	)	Net of tax

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Credit Risk and Interest Rate Risk (Tables)

6 Months Ended

Jun. 30, 2018

Offsetting [Abstract]

Schedule of assets and liabilities subject to netting arrangements

The following table presents information about our liabilities that are subject to such arrangements and can potentially be offset on our consolidated statements of financial condition as of June 30, 2018 and December 31, 2017.

	June 30, 2018
	(dollars in thousands)
	Gross Amounts of Recognized  Assets (Liabilities)			Gross Amounts Offset in the Consolidated Statements of Financial Position			Net Amounts Offset in the Consolidated Statements of Financial Position			Gross Amounts Not Offset with Financial Assets (Liabilities) in the Consolidated Statements of Financial Position
										Financial Instruments		Cash Collateral (Received) Pledged (1)		Net Amount
Repurchase Agreements	$	(9,127,048	)	$	—		$	(9,127,048	)	$	10,626,383	$	—	$	1,499,335
Interest Rate Swaps - Gross Assets	166,115			(42,140		)	123,975			—		16,079		140,054
Interest Rate Swaps - Gross Liabilities	(16,730		)	16,730			—			—		—		—
Treasury Futures - Gross Assets	2,949			—			2,949			—		2,105		5,054
Treasury Futures - Gross Liabilities	—			—			—			—		—		—
Swaptions - Gross Assets	2,417			—			2,417			—		—		2,417
Swaptions - Gross Liabilities	—			—			—			—		—		—
Total Liabilities	$	(8,972,297	)	$	(25,410	)	$	(8,997,707	)	$	10,626,383	$	18,184	$	1,646,860

(1) Included in other assets

	December 31, 2017
	(dollars in thousands)
	Gross Amounts of Recognized  Assets (Liabilities)			Gross Amounts Offset in the Consolidated Statements of Financial Position			Net Amounts Offset in the Consolidated Statements of Financial Position			Gross Amounts Not Offset with Financial Assets (Liabilities) in the Consolidated Statements of Financial Position
										Financial Instruments		Cash Collateral (Received) Pledged (1)		Net Amount
Repurchase Agreements	$	(7,250,452	)	$	—		$	(7,250,452	)	$	8,788,680	$	1,156	$	1,539,384
Interest Rate Swaps - Gross Assets	44,874			(1,617		)	43,257			—		11,570		54,827
Interest Rate Swaps - Gross Liabilities	(1,617		)	1,617			—			—		—		—
Treasury Futures - Gross Assets	3,552			—			3,552			—		376		3,928
Treasury Futures - Gross Liabilities	—			—			—			—		—		—
Swaptions - Gross Assets	2,105			—			2,105			—		—		2,105
Swaptions - Gross Liabilities	(320		)	—			(320		)	—		—		(320		)
Total Liabilities	$	(7,201,858	)	$	—		$	(7,201,858	)	$	8,788,680	$	13,102	$	1,599,924

(1) Included in other assets

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Organization - Narrative (Detail)	6 Months Ended
	Jun. 30, 2018 subsidiary
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of wholly owned direct subsidiaries	9

XML

Summary of the Significant Accounting Policies (Details) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Accounting Policies [Abstract]
Penalties and interest accrued	$ 0	$ 0

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Mortgage-Backed Securities - Summary (Detail) - Residential Mortgage-Backed Securities - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Investment Holdings [Line Items]
Principal or Notional Value	$ 18,216,741	$ 15,442,782
Total Premium	652,411	563,428
Total Discount	(1,355,271)	(1,438,994)
Amortized Cost	9,013,927	6,481,537
Fair Value	9,582,751	7,216,144
Gross Unrealized Gains	822,817	861,182
Gross Unrealized Losses	(253,993)	(126,575)
Net Unrealized Gain/(Loss)	568,824	734,607
Non-Agency RMBS - Senior
Investment Holdings [Line Items]
Principal or Notional Value	2,522,667	2,733,926
Total Premium	628	540
Total Discount	(1,180,560)	(1,257,103)
Amortized Cost	1,342,735	1,477,363
Fair Value	2,063,786	2,231,415
Gross Unrealized Gains	721,524	754,234
Gross Unrealized Losses	(473)	(182)
Net Unrealized Gain/(Loss)	721,051	754,052
Non-Agency RMBS - Senior interest-only
Investment Holdings [Line Items]
Principal or Notional Value	5,282,885	4,862,461
Total Premium	302,960	262,996
Total Discount	0	0
Amortized Cost	302,960	262,996
Fair Value	252,324	210,850
Gross Unrealized Gains	26,074	15,761
Gross Unrealized Losses	(76,710)	(67,907)
Net Unrealized Gain/(Loss)	(50,636)	(52,146)
Non-Agency RMBS - Subordinated
Investment Holdings [Line Items]
Principal or Notional Value	365,499	501,455
Total Premium	9,842	10,571
Total Discount	(170,202)	(177,206)
Amortized Cost	205,139	334,820
Fair Value	266,830	401,225
Gross Unrealized Gains	61,963	66,704
Gross Unrealized Losses	(272)	(299)
Net Unrealized Gain/(Loss)	61,691	66,405
Non-Agency RMBS - Subordinated interest-only
Investment Holdings [Line Items]
Principal or Notional Value	206,557	201,378
Total Premium	9,279	7,369
Total Discount	0	0
Amortized Cost	9,279	7,369
Fair Value	10,482	7,826
Gross Unrealized Gains	1,830	902
Gross Unrealized Losses	(627)	(445)
Net Unrealized Gain/(Loss)	1,203	457
Agency MBS - Residential
Investment Holdings [Line Items]
Principal or Notional Value	4,527,730	2,227,128
Total Premium	167,342	123,245
Total Discount	0	0
Amortized Cost	4,695,072	2,350,373
Fair Value	4,612,920	2,322,180
Gross Unrealized Gains	9,528	5,706
Gross Unrealized Losses	(91,680)	(33,899)
Net Unrealized Gain/(Loss)	(82,152)	(28,193)
Agency MBS - Commercial
Investment Holdings [Line Items]
Principal or Notional Value	2,300,891	1,894,594
Total Premium	52,422	47,430
Total Discount	(4,509)	(4,685)
Amortized Cost	2,348,804	1,937,339
Fair Value	2,273,508	1,938,281
Gross Unrealized Gains	944	17,041
Gross Unrealized Losses	(76,240)	(16,099)
Net Unrealized Gain/(Loss)	(75,296)	942
Agency MBS - Interest-only
Investment Holdings [Line Items]
Principal or Notional Value	3,010,512	3,021,840
Total Premium	109,938	111,277
Total Discount	0	0
Amortized Cost	109,938	111,277
Fair Value	102,901	104,367
Gross Unrealized Gains	954	834
Gross Unrealized Losses	(7,991)	(7,744)
Net Unrealized Gain/(Loss)	$ (7,037)	$ (6,910)

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Mortgage-Backed Securities - Accretable Yield (Detail) - Available-for-sale Securities - Non-Agency RMBS Having Deteriorated Credit When Acquired - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Accretable Yield Movement Schedule [Roll Forward]
Balance at beginning of period	$ 1,293,996	$ 1,513,416	$ 1,303,590	$ 1,550,110
Purchases	5,734	1,969	5,734	10,185
Yield income earned	(57,786)	(67,750)	(117,517)	(136,577)
Reclassification (to) from non-accretable difference	31,471	(62,059)	81,496	(38,107)
Sales and deconsolidation	(6,775)	(2,388)	(6,663)	(2,423)
Balance at end of period	$ 1,266,640	$ 1,383,188	$ 1,266,640	$ 1,383,188

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Mortgage-Backed Securities - Non-Agency Securities Having Deteriorated Credit When Acquired (Detail) - Non-Agency RMBS Having Deteriorated Credit When Acquired - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Outstanding principal balance:
Beginning of period	$ 2,673,350	$ 3,138,265
End of period	2,476,421	2,673,350
Amortized cost:
Beginning of period	1,381,839	1,695,079
End of period	$ 1,249,140	$ 1,381,839

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Mortgage-Backed Securities - Unrealized Loss Positions (Detail) - Residential Mortgage-Backed Securities $ in Thousands	Jun. 30, 2018 USD ($) security	Dec. 31, 2017 USD ($) security
Estimated Fair Value
Unrealized Loss Position for Less than 12 Months	$ 3,414,972	$ 1,569,727
Unrealized Loss Position for 12 Months or More	1,792,838	1,818,645
Total	5,207,810	3,388,372
Unrealized Losses
Unrealized Loss Position for Less than 12 Months	(90,507)	(19,477)
Unrealized Loss Position for 12 Months or More	(163,486)	(107,098)
Total	$ (253,993)	$ (126,575)
Number of Securities
Unrealized Loss Position for Less than 12 Months | security	589	239
Unrealized Loss Position for 12 Months or More | security	341	336
Total | security	930	575
Non-Agency RMBS - Senior
Estimated Fair Value
Unrealized Loss Position for Less than 12 Months	$ 43,709	$ 35,229
Unrealized Loss Position for 12 Months or More	0	0
Total	43,709	35,229
Unrealized Losses
Unrealized Loss Position for Less than 12 Months	(473)	(182)
Unrealized Loss Position for 12 Months or More	0	0
Total	$ (473)	$ (182)
Number of Securities
Unrealized Loss Position for Less than 12 Months | security	3	1
Unrealized Loss Position for 12 Months or More | security	0	0
Total | security	3	1
Non-Agency RMBS - Senior interest-only
Estimated Fair Value
Unrealized Loss Position for Less than 12 Months	$ 25,400	$ 28,129
Unrealized Loss Position for 12 Months or More	103,442	120,120
Total	128,842	148,249
Unrealized Losses
Unrealized Loss Position for Less than 12 Months	(4,391)	(1,724)
Unrealized Loss Position for 12 Months or More	(72,319)	(66,183)
Total	$ (76,710)	$ (67,907)
Number of Securities
Unrealized Loss Position for Less than 12 Months | security	31	27
Unrealized Loss Position for 12 Months or More | security	104	120
Total | security	135	147
Non-Agency RMBS - Subordinated
Estimated Fair Value
Unrealized Loss Position for Less than 12 Months	$ 1,016	$ 235
Unrealized Loss Position for 12 Months or More	0	6,261
Total	1,016	6,496
Unrealized Losses
Unrealized Loss Position for Less than 12 Months	(272)	(38)
Unrealized Loss Position for 12 Months or More	0	(261)
Total	$ (272)	$ (299)
Number of Securities
Unrealized Loss Position for Less than 12 Months | security	5	7
Unrealized Loss Position for 12 Months or More | security	6	5
Total | security	11	12
Non-Agency RMBS - Subordinated interest-only
Estimated Fair Value
Unrealized Loss Position for Less than 12 Months	$ 112	$ 0
Unrealized Loss Position for 12 Months or More	704	945
Total	816	945
Unrealized Losses
Unrealized Loss Position for Less than 12 Months	(18)	0
Unrealized Loss Position for 12 Months or More	(609)	(445)
Total	$ (627)	$ (445)
Number of Securities
Unrealized Loss Position for Less than 12 Months | security	1	0
Unrealized Loss Position for 12 Months or More | security	3	3
Total | security	4	3
Agency MBS - Residential
Estimated Fair Value
Unrealized Loss Position for Less than 12 Months	$ 1,618,829	$ 660,103
Unrealized Loss Position for 12 Months or More	1,318,668	1,471,464
Total	2,937,497	2,131,567
Unrealized Losses
Unrealized Loss Position for Less than 12 Months	(23,966)	(5,197)
Unrealized Loss Position for 12 Months or More	(67,714)	(28,702)
Total	$ (91,680)	$ (33,899)
Number of Securities
Unrealized Loss Position for Less than 12 Months | security	36	21
Unrealized Loss Position for 12 Months or More | security	94	93
Total | security	130	114
Agency MBS - Commercial
Estimated Fair Value
Unrealized Loss Position for Less than 12 Months	$ 1,713,531	$ 830,889
Unrealized Loss Position for 12 Months or More	321,813	161,980
Total	2,035,344	992,869
Unrealized Losses
Unrealized Loss Position for Less than 12 Months	(60,698)	(11,695)
Unrealized Loss Position for 12 Months or More	(15,542)	(4,404)
Total	$ (76,240)	$ (16,099)
Number of Securities
Unrealized Loss Position for Less than 12 Months | security	506	176
Unrealized Loss Position for 12 Months or More | security	114	91
Total | security	620	267
Agency MBS - Interest-only
Estimated Fair Value
Unrealized Loss Position for Less than 12 Months	$ 12,375	$ 15,142
Unrealized Loss Position for 12 Months or More	48,211	57,875
Total	60,586	73,017
Unrealized Losses
Unrealized Loss Position for Less than 12 Months	(689)	(641)
Unrealized Loss Position for 12 Months or More	(7,302)	(7,103)
Total	$ (7,991)	$ (7,744)
Number of Securities
Unrealized Loss Position for Less than 12 Months | security	7	7
Unrealized Loss Position for 12 Months or More | security	20	24
Total | security	27	31

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Mortgage-Backed Securities - Investment Holdings - Narrative (Detail) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Dec. 31, 2017 USD ($)
Agency RMBS - Pass-through
Investment Holdings [Line Items]
Gross unrealized loss	$ 111,000		$ 111,000		$ 41,000
Non-agency MBS
Investment Holdings [Line Items]
Gross unrealized loss	$ 745		$ 745		$ 283
Non-Agency RMBS Deemed To Be Equivalent To Alt-A Quality
Investment Holdings [Line Items]
Percentage in Alt-A collateral	67.00%		67.00%		66.00%
Non Agency Residential MBS Deemed To Be Equivalent To Prime Quality
Investment Holdings [Line Items]
Percentage in prime collateral	15.00%		15.00%		13.00%
Re-REMIC Security
Investment Holdings [Line Items]
Fair value of securities exchanged	$ 22,000	$ 8,000	$ 22,000	$ 28,000
Gain (loss) on sale of investments	$ 1,685	$ 256	$ 2,000	$ 5,000
Minimum | Alt-A
Investment Holdings [Line Items]
FICO Score			680
Maximum | Alt-A
Investment Holdings [Line Items]
FICO Score			720
Alt-A securities underlying collateral of full documented loans			30.00%

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Mortgage-Backed Securities - Aggregate Other Than Temporary Impairments (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Total other-than-temporary impairment losses	$ (805)	$ (749)	$ (1,099)	$ (3,462)
Portion of loss recognized in other comprehensive income	(8,326)	(12,760)	(9,190)	(28,748)
Net other-than-temporary credit impairment losses	(9,131)	(13,509)	(10,289)	(32,210)
Residential Mortgage-Backed Securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Total other-than-temporary impairment losses	(805)	(749)	(1,099)	(3,462)
Portion of loss recognized in other comprehensive income	(8,326)	(12,760)	(9,190)	(28,748)
Net other-than-temporary credit impairment losses	$ (9,131)	$ (13,509)	$ (10,289)	$ (32,210)

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Mortgage-Backed Securities - Non-Agency Securities Credit Losses (Detail) - Non-agency MBS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]
Cumulative credit loss beginning balance	$ 586,056	$ 558,229	$ 591,521	$ 556,485
Additions:
Other-than-temporary impairments not previously recognized	0	12,399	1,140	12,399
Reductions for securities sold or deconsolidated during the period	(4,775)	0	(4,948)	(7,443)
Increases related to other-than-temporary impairments on securities with previously recognized other-than-temporary impairments	9,131	1,109	9,149	17,835
Reductions for increases in cash flows expected to be collected over the remaining life of the securities	(7,751)	(99)	(14,201)	(7,638)
Cumulative credit impairment loss ending balance	$ 582,661	$ 571,638	$ 582,661	$ 571,638

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Mortgage-Backed Securities - OTTI - Significant Inputs and Assumptions (Detail) - Non-agency MBS	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Weighted Average
Investment Holdings [Line Items]
Loss Severity	66.00%	62.00%
60 days delinquent	23.00%	19.00%
Credit Enhancement	32.00%	19.00%
3 Month CPR	10.00%	12.00%
12 Month CPR	8.00%	11.00%
Minimum
Investment Holdings [Line Items]
Loss Severity	34.00%	28.00%
60 days delinquent	16.00%	11.00%
Credit Enhancement	0.00%	0.00%
3 Month CPR	0.00%	2.00%
12 Month CPR	1.00%	4.00%
Maximum
Investment Holdings [Line Items]
Loss Severity	132.00%	67.00%
60 days delinquent	30.00%	25.00%
Credit Enhancement	55.00%	38.00%
3 Month CPR	39.00%	24.00%
12 Month CPR	20.00%	19.00%

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Mortgage-Backed Securities - Gross Unrealized Gains (Losses) (Detail) - Residential Mortgage-Backed Securities - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Investment Holdings [Line Items]
Gross Unrealized Gain Included in Accumulated Other Comprehensive Income	$ 783,413	$ 838,391
Gross Unrealized Gain Included in Cumulative Earnings	39,404	22,791
Total Gross Unrealized Gain	822,817	861,182
Gross Unrealized Loss Included in Accumulated Other Comprehensive Income	(111,762)	(41,489)
Gross Unrealized Loss Included in Cumulative Earnings	(142,231)	(85,086)
Total Gross Unrealized Loss	(253,993)	(126,575)
Non-Agency RMBS - Senior
Investment Holdings [Line Items]
Gross Unrealized Gain Included in Accumulated Other Comprehensive Income	721,524	754,234
Gross Unrealized Gain Included in Cumulative Earnings	0	0
Total Gross Unrealized Gain	721,524	754,234
Gross Unrealized Loss Included in Accumulated Other Comprehensive Income	(473)	(182)
Gross Unrealized Loss Included in Cumulative Earnings	0	0
Total Gross Unrealized Loss	(473)	(182)
Non-Agency RMBS - Senior interest-only
Investment Holdings [Line Items]
Gross Unrealized Gain Included in Accumulated Other Comprehensive Income	0	0
Gross Unrealized Gain Included in Cumulative Earnings	26,074	15,761
Total Gross Unrealized Gain	26,074	15,761
Gross Unrealized Loss Included in Accumulated Other Comprehensive Income	0	0
Gross Unrealized Loss Included in Cumulative Earnings	(76,710)	(67,907)
Total Gross Unrealized Loss	(76,710)	(67,907)
Non-Agency RMBS - Subordinated
Investment Holdings [Line Items]
Gross Unrealized Gain Included in Accumulated Other Comprehensive Income	58,887	62,989
Gross Unrealized Gain Included in Cumulative Earnings	3,076	3,715
Total Gross Unrealized Gain	61,963	66,704
Gross Unrealized Loss Included in Accumulated Other Comprehensive Income	(272)	(102)
Gross Unrealized Loss Included in Cumulative Earnings	0	(197)
Total Gross Unrealized Loss	(272)	(299)
Non-Agency RMBS - Subordinated interest-only
Investment Holdings [Line Items]
Gross Unrealized Gain Included in Accumulated Other Comprehensive Income	0	0
Gross Unrealized Gain Included in Cumulative Earnings	1,830	902
Total Gross Unrealized Gain	1,830	902
Gross Unrealized Loss Included in Accumulated Other Comprehensive Income	0	0
Gross Unrealized Loss Included in Cumulative Earnings	(627)	(445)
Total Gross Unrealized Loss	(627)	(445)
Agency MBS - Residential
Investment Holdings [Line Items]
Gross Unrealized Gain Included in Accumulated Other Comprehensive Income	2,316	5,706
Gross Unrealized Gain Included in Cumulative Earnings	7,212	0
Total Gross Unrealized Gain	9,528	5,706
Gross Unrealized Loss Included in Accumulated Other Comprehensive Income	(70,382)	(29,083)
Gross Unrealized Loss Included in Cumulative Earnings	(21,298)	(4,816)
Total Gross Unrealized Loss	(91,680)	(33,899)
Agency MBS - Commercial
Investment Holdings [Line Items]
Gross Unrealized Gain Included in Accumulated Other Comprehensive Income	686	15,462
Gross Unrealized Gain Included in Cumulative Earnings	258	1,579
Total Gross Unrealized Gain	944	17,041
Gross Unrealized Loss Included in Accumulated Other Comprehensive Income	(40,635)	(12,122)
Gross Unrealized Loss Included in Cumulative Earnings	(35,605)	(3,977)
Total Gross Unrealized Loss	(76,240)	(16,099)
Agency MBS - Interest-only
Investment Holdings [Line Items]
Gross Unrealized Gain Included in Accumulated Other Comprehensive Income	0	0
Gross Unrealized Gain Included in Cumulative Earnings	954	834
Total Gross Unrealized Gain	954	834
Gross Unrealized Loss Included in Accumulated Other Comprehensive Income	0	0
Gross Unrealized Loss Included in Cumulative Earnings	(7,991)	(7,744)
Total Gross Unrealized Loss	$ (7,991)	$ (7,744)

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Mortgage-Backed Securities - Collateral Characteristics (Detail) - Residential Mortgage-Backed Securities $ in Thousands	Jun. 30, 2018 USD ($) $ / security	Dec. 31, 2017 USD ($) $ / security
Investment Holdings [Line Items]
Principal or Notional Value at Period-End | $	$ 18,216,741	$ 15,442,782
Non-Agency RMBS - Senior
Investment Holdings [Line Items]
Principal or Notional Value at Period-End | $	$ 2,522,667	$ 2,733,926
Weighted Average Amortized Cost Basis	53.23	54.04
Weighted Average Fair Value	81.81	81.62
Weighted Average Coupon	4.80%	4.60%
Weighted Average Yield at Period-End	17.70%	16.70%
Non-Agency RMBS - Senior interest-only
Investment Holdings [Line Items]
Principal or Notional Value at Period-End | $	$ 5,282,885	$ 4,862,461
Weighted Average Amortized Cost Basis	5.73	5.41
Weighted Average Fair Value	4.78	4.34
Weighted Average Coupon	1.40%	1.30%
Weighted Average Yield at Period-End	9.10%	8.00%
Non-Agency RMBS - Subordinated
Investment Holdings [Line Items]
Principal or Notional Value at Period-End | $	$ 365,499	$ 501,455
Weighted Average Amortized Cost Basis	56.13	66.77
Weighted Average Fair Value	73.00	80.01
Weighted Average Coupon	4.00%	4.10%
Weighted Average Yield at Period-End	10.80%	9.60%
Non-Agency RMBS - Subordinated interest-only
Investment Holdings [Line Items]
Principal or Notional Value at Period-End | $	$ 206,557	$ 201,378
Weighted Average Amortized Cost Basis	4.49	3.66
Weighted Average Fair Value	5.07	3.89
Weighted Average Coupon	0.90%	0.80%
Weighted Average Yield at Period-End	11.80%	11.80%
Agency MBS - Residential
Investment Holdings [Line Items]
Principal or Notional Value at Period-End | $	$ 4,527,730	$ 2,227,128
Weighted Average Amortized Cost Basis	103.70	105.53
Weighted Average Fair Value	101.88	104.27
Weighted Average Coupon	4.00%	3.80%
Weighted Average Yield at Period-End	3.40%	2.90%
Agency MBS - Commercial
Investment Holdings [Line Items]
Principal or Notional Value at Period-End | $	$ 2,300,891	$ 1,894,594
Weighted Average Amortized Cost Basis	102.08	102.26
Weighted Average Fair Value	98.81	102.31
Weighted Average Coupon	3.60%	3.60%
Weighted Average Yield at Period-End	3.40%	3.20%
Agency MBS - Interest-only
Investment Holdings [Line Items]
Principal or Notional Value at Period-End | $	$ 3,010,512	$ 3,021,840
Weighted Average Amortized Cost Basis	3.65	3.68
Weighted Average Fair Value	3.42	3.45
Weighted Average Coupon	0.70%	0.70%
Weighted Average Yield at Period-End	3.30%	3.40%

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Mortgage-Backed Securities - Credit Ratings (Detail) - Non-agency MBS	Jun. 30, 2018	Dec. 31, 2017
Credit Derivatives [Line Items]
Percentage of RMBS portfolio at fair value, by credit rating	100.00%	100.00%
AAA
Credit Derivatives [Line Items]
Percentage of RMBS portfolio at fair value, by credit rating	0.30%	0.30%
AA
Credit Derivatives [Line Items]
Percentage of RMBS portfolio at fair value, by credit rating	0.90%	0.30%
A
Credit Derivatives [Line Items]
Percentage of RMBS portfolio at fair value, by credit rating	0.10%	0.60%
BBB
Credit Derivatives [Line Items]
Percentage of RMBS portfolio at fair value, by credit rating	1.40%	1.90%
BB
Credit Derivatives [Line Items]
Percentage of RMBS portfolio at fair value, by credit rating	2.00%	2.50%
B
Credit Derivatives [Line Items]
Percentage of RMBS portfolio at fair value, by credit rating	2.10%	2.30%
Below B
Credit Derivatives [Line Items]
Percentage of RMBS portfolio at fair value, by credit rating	57.80%	59.60%
Not Rated
Credit Derivatives [Line Items]
Percentage of RMBS portfolio at fair value, by credit rating	35.40%	32.50%

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Mortgage-Backed Securities - Maturities (Detail) - Residential Mortgage-Backed Securities - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Fair value
Less than one year, at fair value	$ 20,671	$ 2,198
Greater than one year and less than five years, at fair value	716,987	959,890
Greater than five years and less than ten years, at fair value	5,681,046	3,447,385
Greater than ten years, at fair value	3,164,047	2,806,671
Total maturities, at fair value	9,582,751	7,216,144
Amortized cost
Less than one year, at amortized cost	20,551	3,395
Greater than one year and less than five years, at amortized cost	574,333	784,660
Greater than five years and less than ten years, at amortized cost	5,427,465	3,128,723
Greater than ten years, at amortized cost	2,991,578	2,564,759
Amortized Cost	9,013,927	6,481,537
Non-Agency RMBS - Senior
Fair value
Less than one year, at fair value	5,461	2,179
Greater than one year and less than five years, at fair value	536,951	681,086
Greater than five years and less than ten years, at fair value	816,498	910,234
Greater than ten years, at fair value	704,876	637,916
Total maturities, at fair value	2,063,786	2,231,415
Amortized cost
Less than one year, at amortized cost	5,347	2,124
Greater than one year and less than five years, at amortized cost	387,067	493,965
Greater than five years and less than ten years, at amortized cost	489,371	569,458
Greater than ten years, at amortized cost	460,950	411,816
Amortized Cost	1,342,735	1,477,363
Non-Agency RMBS - Senior interest-only
Fair value
Less than one year, at fair value	6	19
Greater than one year and less than five years, at fair value	47,491	54,107
Greater than five years and less than ten years, at fair value	95,502	72,702
Greater than ten years, at fair value	109,325	84,022
Total maturities, at fair value	252,324	210,850
Amortized cost
Less than one year, at amortized cost	102	1,271
Greater than one year and less than five years, at amortized cost	60,821	73,758
Greater than five years and less than ten years, at amortized cost	120,956	94,145
Greater than ten years, at amortized cost	121,081	93,822
Amortized Cost	302,960	262,996
Non-Agency RMBS - Subordinated
Fair value
Less than one year, at fair value	3,891	0
Greater than one year and less than five years, at fair value	44,590	75,495
Greater than five years and less than ten years, at fair value	126,300	121,555
Greater than ten years, at fair value	92,049	204,175
Total maturities, at fair value	266,830	401,225
Amortized cost
Less than one year, at amortized cost	3,838	0
Greater than one year and less than five years, at amortized cost	34,758	61,987
Greater than five years and less than ten years, at amortized cost	88,839	91,044
Greater than ten years, at amortized cost	77,704	181,789
Amortized Cost	205,139	334,820
Non-Agency RMBS - Subordinated interest-only
Fair value
Less than one year, at fair value	0	0
Greater than one year and less than five years, at fair value	7,954	7,165
Greater than five years and less than ten years, at fair value	333	661
Greater than ten years, at fair value	2,195	0
Total maturities, at fair value	10,482	7,826
Amortized cost
Less than one year, at amortized cost	0	0
Greater than one year and less than five years, at amortized cost	6,270	6,355
Greater than five years and less than ten years, at amortized cost	838	1,014
Greater than ten years, at amortized cost	2,171	0
Amortized Cost	9,279	7,369
Agency MBS - Residential
Fair value
Less than one year, at fair value	0	0
Greater than one year and less than five years, at fair value	0	21,777
Greater than five years and less than ten years, at fair value	4,600,496	2,300,403
Greater than ten years, at fair value	12,424	0
Total maturities, at fair value	4,612,920	2,322,180
Amortized cost
Less than one year, at amortized cost	0	0
Greater than one year and less than five years, at amortized cost	0	22,069
Greater than five years and less than ten years, at amortized cost	4,682,192	2,328,304
Greater than ten years, at amortized cost	12,880	0
Amortized Cost	4,695,072	2,350,373
Agency MBS - Commercial
Fair value
Less than one year, at fair value	0	0
Greater than one year and less than five years, at fair value	15,663	45,770
Greater than five years and less than ten years, at fair value	19,123	16,559
Greater than ten years, at fair value	2,238,722	1,875,952
Total maturities, at fair value	2,273,508	1,938,281
Amortized cost
Less than one year, at amortized cost	0	0
Greater than one year and less than five years, at amortized cost	15,769	47,170
Greater than five years and less than ten years, at amortized cost	20,374	17,176
Greater than ten years, at amortized cost	2,312,661	1,872,993
Amortized Cost	2,348,804	1,937,339
Agency MBS - Interest-only
Fair value
Less than one year, at fair value	11,313	0
Greater than one year and less than five years, at fair value	64,338	74,490
Greater than five years and less than ten years, at fair value	22,794	25,271
Greater than ten years, at fair value	4,456	4,606
Total maturities, at fair value	102,901	104,367
Amortized cost
Less than one year, at amortized cost	11,264	0
Greater than one year and less than five years, at amortized cost	69,648	79,356
Greater than five years and less than ten years, at amortized cost	24,895	27,582
Greater than ten years, at amortized cost	4,131	4,339
Amortized Cost	$ 109,938	$ 111,277

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Mortgage-Backed Securities - Geographical and Other Statistics (Detail) - Non-agency MBS - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Investment Holdings [Line Items]
Weighted average maturity (years)	20 years 4 months 24 days	20 years 8 months 12 days
Weighted average amortized loan to value	63.30%	64.40%
Weighted average FICO	703	697
Weighted average loan balance (in thousands)	$ 324	$ 314
Weighted average percentage owner occupied	84.50%	84.40%
Weighted average percentage single family residence	65.70%	66.30%
Weighted average current credit enhancement	1.50%	2.20%
CA
Investment Holdings [Line Items]
Weighted average geographic concentration of top four states	32.40%	31.70%
NY
Investment Holdings [Line Items]
Weighted average geographic concentration of top four states	8.40%	8.50%
FL
Investment Holdings [Line Items]
Weighted average geographic concentration of top four states	8.10%	8.30%
New Jersey
Investment Holdings [Line Items]
Weighted average geographic concentration of top four states	2.60%	2.70%

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Mortgage-Backed Securities - Year Originated (Detail) - Non-agency MBS	Jun. 30, 2018	Dec. 31, 2017
Origination Year as a Percentage of Outstanding Principal Balance:
2003 (and prior)	4.80%	3.60%
2004	6.50%	4.30%
2005	20.10%	20.80%
2006	39.40%	38.20%
2007	23.60%	30.40%
2008	0.30%	1.80%
2009 and later	5.30%	0.90%
Total	100.00%	100.00%

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Mortgage-Backed Securities - Gains and Losses from Sales of Investments (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Investments, Debt and Equity Securities [Abstract]
Proceeds from sales	$ 32,551	$ 153,681	$ 32,551	$ 173,743
Gross realized gains	4,383	5,380	4,383	10,566
Gross realized losses	(2,216)	(839)	(2,216)	(858)
Net realized gain (loss)	$ 2,167	$ 4,541	$ 2,167	$ 9,708

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Loans Held for Investment - Narrative (Detail) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Securitized Loans Held For Investment By Consolidated Variable Interest Entities [Line Items]
Securitized debt loans held for investment at cost	$ 12,900	$ 13,300
Fair Value | Seasoned Subprime Residential Mortgage Loans
Securitized Loans Held For Investment By Consolidated Variable Interest Entities [Line Items]
90 and over days delinquent	549	577
Loans Held for Investment at Fair Value | Seasoned Subprime Residential Mortgage Loans
Securitized Loans Held For Investment By Consolidated Variable Interest Entities [Line Items]
REO	$ 16	$ 10

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Loans Held for Investment - Roll-Forward (Detail) - Variable Interest Entities, Primary Beneficiary, Aggregated Disclosure - Loans Held for Investment at Fair Value - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
SEC Schedule, 12-29, Real Estate Companies, Investment in Movement in Mortgage Loans on Real Estate [Roll Forward]
Balance, beginning of period	$ 13,678,263	$ 8,753,653
Purchases	924,283	6,539,765
Principal paydowns	(944,146)	(1,788,409)
Sales and settlements	(389,798)	2,876
Net periodic accretion (amortization)	(43,594)	(35,803)
Change in fair value	21,513	206,181
Balance, end of period	$ 13,246,521	$ 13,678,263

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Loans Held for Investment - Year Originated (Detail) - Loans Held for Investment at Fair Value - Seasoned Subprime Residential Mortgage Loans	Jun. 30, 2018	Dec. 31, 2017
Securitized Loans Held For Investment By Consolidated Variable Interest Entities [Line Items]
2002 and prior	7.50%	7.50%
2003	6.70%	6.70%
2004	14.40%	14.60%
2005	20.10%	20.40%
2006	23.30%	23.10%
2007	19.10%	19.00%
2008	6.00%	6.00%
2009	0.80%	0.70%
2010 and later	2.10%	2.00%
Total	100.00%	100.00%

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Loans Held for Investment - Collateral Characteristics (Detail) - Loans Held for Investment at Fair Value - Seasoned Subprime Residential Mortgage Loans $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2018 USD ($) loan	Dec. 31, 2017 USD ($) loan
Securitized Loans Held For Investment By Consolidated Variable Interest Entities [Line Items]
Number of loans | loan	144,451	149,172
Weighted average maturity (years)	18 years 9 months 24 days	18 years 9 months 18 days
Weighted average loan to value	87.50%	88.00%
Weighted average FICO	630	631
Weighted average loan balance (in thousands) | $	$ 91	$ 91
Weighted average percentage owner occupied	92.80%	95.00%
Weighted average percentage single family residence	86.20%	86.00%
CA
Securitized Loans Held For Investment By Consolidated Variable Interest Entities [Line Items]
Weighted average geographic concentration of top four states	9.10%	9.00%
FL
Securitized Loans Held For Investment By Consolidated Variable Interest Entities [Line Items]
Weighted average geographic concentration of top four states	7.20%	7.20%
OH
Securitized Loans Held For Investment By Consolidated Variable Interest Entities [Line Items]
Weighted average geographic concentration of top four states	6.00%	6.10%
NY
Securitized Loans Held For Investment By Consolidated Variable Interest Entities [Line Items]
Weighted average geographic concentration of top four states	5.60%
PA
Securitized Loans Held For Investment By Consolidated Variable Interest Entities [Line Items]
Weighted average geographic concentration of top four states	5.60%	5.60%
VA
Securitized Loans Held For Investment By Consolidated Variable Interest Entities [Line Items]
Weighted average geographic concentration of top four states		5.50%

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Loans Held for Investment - Loan Products Type and Characteristics (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Securitized Loans Held For Investment By Consolidated Variable Interest Entities [Line Items]
Total Principal	$ 13,083,186	$ 13,525,820
Residential Portfolio Segment
Securitized Loans Held For Investment By Consolidated Variable Interest Entities [Line Items]
Outstanding balance past due	$ 2,023,828	$ 2,182,383
Outstanding balance past due, percent of total balance (percent)	15.50%	16.10%
Bankruptcy | Residential Portfolio Segment
Securitized Loans Held For Investment By Consolidated Variable Interest Entities [Line Items]
Outstanding balance past due	$ 244,955	$ 272,778
Outstanding balance past due, percent of total balance (percent)	1.90%	2.00%
Foreclosure | Residential Portfolio Segment
Securitized Loans Held For Investment By Consolidated Variable Interest Entities [Line Items]
Outstanding balance past due	$ 262,100	$ 200,376
Outstanding balance past due, percent of total balance (percent)	2.00%	1.50%
REO | Residential Portfolio Segment
Securitized Loans Held For Investment By Consolidated Variable Interest Entities [Line Items]
Outstanding balance past due	$ 34,519	$ 31,008
Outstanding balance past due, percent of total balance (percent)	0.30%	0.20%
30 Days Delinquent | Residential Portfolio Segment
Securitized Loans Held For Investment By Consolidated Variable Interest Entities [Line Items]
Outstanding balance past due	$ 797,730	$ 888,535
Outstanding balance past due, percent of total balance (percent)	6.10%	6.60%
60 Days Delinquent | Residential Portfolio Segment
Securitized Loans Held For Investment By Consolidated Variable Interest Entities [Line Items]
Outstanding balance past due	$ 288,255	$ 353,810
Outstanding balance past due, percent of total balance (percent)	2.20%	2.60%
90 Days Delinquent | Residential Portfolio Segment
Securitized Loans Held For Investment By Consolidated Variable Interest Entities [Line Items]
Outstanding balance past due	$ 396,269	$ 435,876
Outstanding balance past due, percent of total balance (percent)	3.00%	3.20%

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Fair Value Measurements - Narrative (Details) - Investments with Difference Between Model Price and Third-Party Price	Jun. 30, 2018 USD ($) loan	Dec. 31, 2017 USD ($) loan
Mortgage Backed Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans internally valued lower than third party prices | loan	17	4
Excess (deficit) of third party prices over internally developed price	$ (18,000,000)	$ (3,000,000)
Securitized Loans Held For Investment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Excess (deficit) of third party prices over internally developed price	39,000,000
Internal Assessment | Mortgage Backed Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	197,000,000	25,000,000
Internal Assessment | Securitized Loans Held For Investment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	1,190,000,000	0
Third Party Assessment | Mortgage Backed Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	215,000,000	$ 28,000,000
Third Party Assessment | Securitized Loans Held For Investment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	$ 1,150,000,000

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Fair Value Measurements - Schedule of Unpaid Principal, Fair Value and Impact of Changes in Fair Value on Financial Instruments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2018	Dec. 31, 2017
Assets:
Loans held for investment, at fair value	$ 13,246,521	$ 13,678,263	$ 13,246,521	$ 13,678,263
Liabilities:
Securitized debt at fair value, collateralized by loans held for investment, fair value	9,340,368	9,388,657	9,340,368	9,388,657
Non-agency RMBS | Subordinated
Assets:
Fair Value	12,918	13,993	12,918	13,993
Gain (Loss) on Change in Fair Value	(42)	(545)	(440)	1,246
Non-agency RMBS | Senior, interest-only
Assets:
Unpaid Principal/ Notional	5,282,885	4,862,461	5,282,885	4,862,461
Fair Value	252,324	210,850	252,324	210,850
Gain (Loss) on Change in Fair Value	3,464	3,156	1,511	(13,290)
Non-agency RMBS | Subordinated, interest-only
Assets:
Unpaid Principal/ Notional	206,557	201,378	206,557	201,378
Fair Value	10,482	7,826	10,482	7,826
Gain (Loss) on Change in Fair Value	335	1,836	746	2,311
Agency MBS | Residential Pass-through
Assets:
Unpaid Principal/ Notional	3,010,558	577,522	3,010,558	577,522
Fair Value	3,075,138	602,829	3,075,138	602,829
Gain (Loss) on Change in Fair Value	3,081	(2,359)	(9,270)	(4,816)
Agency MBS | Commercial Pass-through
Assets:
Unpaid Principal/ Notional	1,004,493	564,379	1,004,493	564,379
Fair Value	984,591	570,105	984,591	570,105
Gain (Loss) on Change in Fair Value	(12,534)	(546)	(32,948)	(2,398)
Agency MBS | Interest-only
Assets:
Unpaid Principal/ Notional	3,010,512	3,021,840	3,010,512	3,021,840
Fair Value	102,901	104,367	102,901	104,367
Gain (Loss) on Change in Fair Value	46	(367)	(127)	465
Loans held for investment
Assets:
Gain (Loss) on Change in Fair Value	(20,082)	(65,643)	21,513	206,181
Loans held for investment, Unpaid Principal/Notional	13,083,186	13,525,820	13,083,186	13,525,820
Loans held for investment, at fair value	13,246,521	13,678,263	13,246,521	13,678,263
Securitized debt
Assets:
Gain (Loss) on Change in Fair Value	7,369	16,831	15,118	(78,289)
Liabilities:
Securitized debt at fair value, collateralized by loans held for investment, Unpaid Principal/Notional	9,388,837	9,395,854	9,388,837	9,395,854
Securitized debt at fair value, collateralized by loans held for investment, fair value	$ 9,340,368	$ 9,388,657	$ 9,340,368	$ 9,388,657

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Fair Value Measurements - Level of Fair Value (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Assets:
Non-Agency RMBS, at fair value	$ 2,593,422	$ 2,851,316
Agency MBS, at fair value	6,989,329	4,364,828
Loans held for investment, at fair value	13,246,521	13,678,263
Net Amounts Offset in the Consolidated Statements of Financial Position	129,341	48,914
Liabilities:
Securitized debt at fair value, collateralized by loans held for investment	9,340,368	9,388,657
Derivatives, at fair value	0	320
Fair Value, Measurements, Recurring
Assets:
Non-Agency RMBS, at fair value	2,593,422	2,851,316
Agency MBS, at fair value	6,989,329	4,364,828
Loans held for investment, at fair value	13,246,521	13,678,263
Counterparty and Cash Collateral, netting	(42,140)	(1,617)
Net Amounts Offset in the Consolidated Statements of Financial Position	129,341	48,914
Liabilities:
Securitized debt at fair value, collateralized by loans held for investment	9,340,368	9,388,657
Counterparty and Cash Collateral, netting	(16,730)	(1,617)
Derivatives, at fair value	0	320
Fair Value, Measurements, Recurring | Level 1
Assets:
Non-Agency RMBS, at fair value	0	0
Agency MBS, at fair value	0	0
Loans held for investment, at fair value	0	0
Derivatives	2,949	3,553
Liabilities:
Securitized debt at fair value, collateralized by loans held for investment	0	0
Derivatives	0	0
Fair Value, Measurements, Recurring | Level 2
Assets:
Non-Agency RMBS, at fair value	0	0
Agency MBS, at fair value	6,989,329	4,364,828
Loans held for investment, at fair value	0	0
Derivatives	168,532	46,978
Liabilities:
Securitized debt at fair value, collateralized by loans held for investment	0	0
Derivatives	16,730	1,937
Fair Value, Measurements, Recurring | Level 3
Assets:
Non-Agency RMBS, at fair value	2,593,422	2,851,316
Agency MBS, at fair value	0	0
Loans held for investment, at fair value	13,246,521	13,678,263
Derivatives	0	0
Liabilities:
Securitized debt at fair value, collateralized by loans held for investment	9,340,368	9,388,657
Derivatives	$ 0	$ 0

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Fair Value Measurements - Unobservable Input Reconciliation (Detail) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Securitized Debt | Variable Interest Entities, Primary Beneficiary, Aggregated Disclosure
Fair Value, Assets Measured on Recurring Basis [Roll Forward]
Other than temporary credit impairment losses	$ 0	$ 0
Realized gains (losses) on sales and settlements	(10,057)	35,273
Net unrealized gains (losses) included in income	(15,118)	78,289
Fair Value, Liabilities Measured on Recurring Basis [Roll Forward]
Securitized Debt, Beginning balance, Level 3	9,388,657	6,941,097
Securitized Debt, Transfers in to Level 3 assets	0	0
Securitized Debt, Transfers out of Level 3 assets	0	0
Securitized Debt, Purchases	1,170,009	5,173,430
Securitized Debt, Principal payments	(894,694)	(1,787,368)
Securitized Debt, Sales and Settlements	(293,460)	(1,056,765)
Securitized Debt, Accretion (amortization) of purchase discounts	(4,969)	4,701
Securitized Debt, Gains (losses) included in other comprehensive income	0	0
Securitized Debt, Ending balance, Level 3	9,340,368	9,388,657
Non-agency MBS
Fair Value, Assets Measured on Recurring Basis [Roll Forward]
Beginning balance Level 3 assets	2,851,316	3,330,063
Transfers in to Level 3 assets	0	6,112
Transfers out of Level 3 assets	0	0
Purchases of assets/ issuance of debt	92,017	78,400
Principal payments	(327,923)	(568,339)
Sales and settlements	(32,379)	(68,162)
Accretion (amortization) of purchase discounts	53,895	120,119
Other than temporary credit impairment losses	(10,289)	(59,881)
Realized gains (losses) on sales and settlements	2,244	12,031
Net unrealized gains (losses) included in income	1,815	(9,733)
Total unrealized gains (losses) for the period	(37,274)	10,706
Ending balance Level 3 assets	2,593,422	2,851,316
Loans held for investment | Variable Interest Entities, Primary Beneficiary, Aggregated Disclosure
Fair Value, Assets Measured on Recurring Basis [Roll Forward]
Beginning balance Level 3 assets	13,678,263	8,753,653
Transfers in to Level 3 assets	0	0
Transfers out of Level 3 assets	0	0
Purchases of assets/ issuance of debt	924,283	6,539,765
Principal payments	(944,146)	(1,788,409)
Sales and settlements	(389,798)	2,876
Accretion (amortization) of purchase discounts	(43,594)	(35,803)
Other than temporary credit impairment losses	0	0
Realized gains (losses) on sales and settlements	0	0
Net unrealized gains (losses) included in income	21,513	206,181
Total unrealized gains (losses) for the period	0	0
Ending balance Level 3 assets	$ 13,246,521	$ 13,678,263

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Fair Value Measurements - Unobservable Input Reconciliation - Additional Information (Detail) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Non-agency MBS
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Transfers in to Level 3 assets	$ 0	$ 6,112

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Fair Value Measurements - Unobservable Inputs Assumptions - Non-Agency RMBS Held for Investment (Detail) - Level 3	Jun. 30, 2018	Dec. 31, 2017
Weighted Average Discount Rate | Non-Agency RMBS - Senior
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Significant Inputs	0.046	0.044
Weighted Average Discount Rate | Non-Agency RMBS - Senior interest-only
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Significant Inputs	0.100	0.112
Weighted Average Discount Rate | Non-Agency RMBS - Subordinated
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Significant Inputs	0.054	0.058
Weighted Average Discount Rate | Non-Agency RMBS - Subordinated interest-only
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Significant Inputs	0.104	0.120
CPR | Minimum | Non-Agency RMBS - Senior
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Significant Inputs	0.02	0.01
CPR | Minimum | Non-Agency RMBS - Senior interest-only
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Significant Inputs	0.04	0.03
CPR | Minimum | Non-Agency RMBS - Subordinated
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Significant Inputs	0.01	0.01
CPR | Minimum | Non-Agency RMBS - Subordinated interest-only
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Significant Inputs	0.04	0.06
CPR | Maximum | Non-Agency RMBS - Senior
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Significant Inputs	0.22	0.45
CPR | Maximum | Non-Agency RMBS - Senior interest-only
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Significant Inputs	0.31	0.25
CPR | Maximum | Non-Agency RMBS - Subordinated
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Significant Inputs	0.23	0.20
CPR | Maximum | Non-Agency RMBS - Subordinated interest-only
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Significant Inputs	0.25	0.22
CDR | Minimum | Non-Agency RMBS - Senior
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Significant Inputs	0.00	0.00
CDR | Minimum | Non-Agency RMBS - Senior interest-only
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Significant Inputs	0.00	0.00
CDR | Minimum | Non-Agency RMBS - Subordinated
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Significant Inputs	0.00	0.00
CDR | Minimum | Non-Agency RMBS - Subordinated interest-only
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Significant Inputs	0.00	0.00
CDR | Maximum | Non-Agency RMBS - Senior
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Significant Inputs	0.52	0.55
CDR | Maximum | Non-Agency RMBS - Senior interest-only
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Significant Inputs	0.59	0.50
CDR | Maximum | Non-Agency RMBS - Subordinated
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Significant Inputs	0.45	0.33
CDR | Maximum | Non-Agency RMBS - Subordinated interest-only
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Significant Inputs	0.15	0.09
Loss Severity | Minimum | Non-Agency RMBS - Senior
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Significant Inputs	0.35	0.35
Loss Severity | Minimum | Non-Agency RMBS - Senior interest-only
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Significant Inputs	0.35	0.35
Loss Severity | Minimum | Non-Agency RMBS - Subordinated
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Significant Inputs	0.10	0.35
Loss Severity | Minimum | Non-Agency RMBS - Subordinated interest-only
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Significant Inputs	0.35	0.35
Loss Severity | Maximum | Non-Agency RMBS - Senior
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Significant Inputs	0.95	0.89
Loss Severity | Maximum | Non-Agency RMBS - Senior interest-only
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Significant Inputs	0.95	0.95
Loss Severity | Maximum | Non-Agency RMBS - Subordinated
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Significant Inputs	0.71	0.69
Loss Severity | Maximum | Non-Agency RMBS - Subordinated interest-only
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Significant Inputs	0.58	0.63

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Fair Value Measurements - Unobservable Inputs Assumptions - Securitized Debt (Detail) - Loans held for investment - Variable Interest Entities, Primary Beneficiary, Aggregated Disclosure	Jun. 30, 2018	Dec. 31, 2017
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Significant Inputs	0.044	0.041
CPR | Minimum | Level 3
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Significant Inputs	0.06	0.06
CPR | Maximum | Level 3
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Significant Inputs	0.15	0.15
CDR | Minimum | Level 3
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Significant Inputs	0.00	0.00
CDR | Maximum | Level 3
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Significant Inputs	0.08	0.06
Loss Severity | Minimum | Level 3
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Significant Inputs	0.35	0.35
Loss Severity | Maximum | Level 3
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Significant Inputs	0.60	0.60

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Fair Value Measurements - Unobservable Inputs Assumptions - Loans Held for Investment (Detail) - Loans Held for Investment at Fair Value - Level 3	Jun. 30, 2018	Dec. 31, 2017
Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Coupon	6.90%	6.90%
FICO	627	627
Loan-to-value (LTV)	88.00%	88.00%
Weighted Average | Single family
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted average percent	87.00%	87.00%
Weighted Average | Manufactured housing
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted average percent	4.00%	4.00%
Weighted Average | Multi-family/mixed use/other
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted average percent	9.00%	9.00%
Weighted Average | Owner Occupied
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted average percent	93.00%	95.00%
Weighted Average | Investor
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted average percent	1.00%	1.00%
Weighted Average | Secondary
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted average percent	6.00%	4.00%
Base Rate
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Coupon	5.00%	4.80%
FICO	636	636
Loan-to-value (LTV)	88.00%	89.00%

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Fair Value Measurements - Carrying and Fair Values (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securitized debt, collateralized by Non-Agency RMBS	$ 179,742	$ 205,780
Carrying Amount | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Repurchase agreements	9,127,048	7,250,452
Carrying Amount | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securitized debt, collateralized by Non-Agency RMBS	179,742	205,780
Fair Value | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Repurchase agreements	9,151,213	7,269,193
Fair Value | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securitized debt, collateralized by Non-Agency RMBS	$ 161,707	$ 192,259

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Repurchase Agreements - Outstanding, Weighted Average Borrowing Rates, Weighted Average Remaining Maturities, Average Daily Balances and the Fair Value of Collateral Pledged (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase agreements outstanding secured by:	$ 9,127,048	$ 7,250,452
Repurchase Agreements | Agency MBS - Residential
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase agreements outstanding secured by:	5,569,418	3,202,056
Average balance of Repurchase agreements secured by:	$ 3,907,750	$ 3,120,474
Average borrowing rate of Repurchase agreements secured by:	2.09%	1.47%
Average remaining maturity of Repurchase agreements secured by:	24 days	28 days
Average original maturity of Repurchase agreements secured by:	66 days	87 days
MBS pledged as collateral at fair value on Repurchase agreements:	$ 5,954,878	$ 3,450,123
Repurchase Agreements | Non-agency MBS and Loans held for investment (in thousands)
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase agreements outstanding secured by:	3,557,630	4,048,396
Average balance of Repurchase agreements secured by:	$ 3,893,703	$ 3,203,700
Average borrowing rate of Repurchase agreements secured by:	4.02%	3.41%
Average remaining maturity of Repurchase agreements secured by:	98 days	93 days
Average original maturity of Repurchase agreements secured by:	124 days	123 days
MBS pledged as collateral at fair value on Repurchase agreements:	$ 4,671,505	$ 5,338,557
Repurchase Agreements | Residential Mortgage-Backed Securities
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase agreements outstanding secured by:	9,127,048	7,250,452
Average balance of Repurchase agreements secured by:	7,801,453	6,324,174
MBS pledged as collateral at fair value on Repurchase agreements:	$ 10,626,383	$ 8,788,680

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Repurchase Agreements - Maturities (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase agreements outstanding	$ 9,127,048	$ 7,250,452
Overnight
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase agreements outstanding	0	0
1 to 29 days
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase agreements outstanding	4,757,404	4,745,342
30 to 59 days
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase agreements outstanding	1,915,294	1,206,769
60 to 89 days
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase agreements outstanding	1,460,284	592,865
90 to 119 days
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase agreements outstanding	90,183	0
Greater than or equal to 120 days
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase agreements outstanding	$ 903,883	$ 705,476

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Repurchase Agreements - Narrative (Detail) - Repurchase Agreements - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Credit Suisse First Boston
Short-term Debt [Line Items]
Amount at risk	$ 410	$ 451
Securities Pledged as Collateral | Nomura Securities Company Limited | Credit Concentration Risk | Stockholders' Equity, Total
Short-term Debt [Line Items]
Collateral posted on repurchase agreements, percentage of equity	11.00%
Securities Pledged as Collateral | Credit Suisse First Boston | Credit Concentration Risk | Stockholders' Equity, Total
Short-term Debt [Line Items]
Collateral posted on repurchase agreements, percentage of equity		12.00%
Weighted average maturity		25 days

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Securitized Debt - Narrative (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt	$ 387,000	$ (48,014,000)	$ 10,057,000	$ (48,014,000)
Variable Interest Entities, Primary Beneficiary, Aggregated Disclosure | Securitized debt
Debt Instrument [Line Items]
Principal balance of debt	$ 9,400,000,000		$ 9,400,000,000		$ 9,400,000,000
Weighted average cost of financing	4.40%		4.40%		4.20%
Variable Interest Entities, Primary Beneficiary | Securitized debt
Debt Instrument [Line Items]
Acquired securitized debt collateral outstanding principal balance	$ 155,000,000	197,000,000	$ 304,000,000
Repurchase of securitized debt borrowings, collateralized by Non-Agency RMBS	154,000,000	245,000,000	294,000,000
Gains (losses) on extinguishment of debt	387,000	48,000,000	10,000,000
Securitized Loans | Non-agency MBS
Debt Instrument [Line Items]
Acquired securitized debt collateral outstanding principal balance	0	$ 0
Securitized Loans | Variable Interest Entities, Primary Beneficiary, Aggregated Disclosure | Non-agency MBS
Debt Instrument [Line Items]
Principal balance of debt	$ 194,000,000		$ 194,000,000		$ 219,000,000
Weighted average cost of financing	6.30%		6.30%		6.20%

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Securitized Debt - Maturities (Detail) - Variable Interest Entities, Primary Beneficiary, Aggregated Disclosure - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Loans held for investment
Debt Instrument [Line Items]
Within One Year	$ 1,785,710	$ 1,819,018
One to Three Years	2,818,626	2,872,572
Three to Five Years	2,110,377	2,140,434
Greater Than Five Years	2,493,804	2,439,872
Total	9,208,517	9,271,896
Securitized Loans | Non-agency MBS
Debt Instrument [Line Items]
Within One Year	30,923	42,217
One to Three Years	37,753	45,916
Three to Five Years	11,461	16,524
Greater Than Five Years	5,600	4,867
Total	$ 85,737	$ 109,524

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Securitized Debt - Callable Debt (Detail) - Securitized Loans $ in Thousands	Jun. 30, 2018 USD ($)
Debt Instrument, Redemption [Line Items]
2018	$ 560,814
2019	360,602
2020	4,621,456
2021	3,197,192
2022	300,973
2023	142,144
Total	$ 9,183,181

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Consolidated Securitization Vehicles and Other Variable Interest Entities - Narrative (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Non-agency MBS
Variable Interest Entity [Line Items]
Unconsolidated VIEs, aggregate investment	$ 1,300,000	$ 1,300,000
Non-agency MBS | Minimum
Variable Interest Entity [Line Items]
Unconsolidated VIEs, individual investments (Less than $1 million minimum)	1,000	1,000
Non-agency MBS | Maximum
Variable Interest Entity [Line Items]
Unconsolidated VIEs, individual investments (Less than $1 million minimum)	49,000	52,000
Variable Interest Entities, Primary Beneficiary, Aggregated Disclosure
Variable Interest Entity [Line Items]
Assets	14,455,778	14,987,464
Liabilities	9,559,149	9,631,820
Variable Interest Entities, Not Primary Beneficiary, Aggregated Disclosure
Variable Interest Entity [Line Items]
Variable interest entity, reporting entity involvement, maximum loss exposure, amount	$ 1,200,000	$ 1,200,000

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Consolidated Securitization Vehicles and Other Variable Interest Entities - Effect on Consolidated Financial Condition (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Assets:
Non-Agency RMBS, at fair value	$ 2,593,422	$ 2,851,316
Loans held for investment, at fair value	13,246,521	13,678,263
Accrued interest receivable	106,877	100,789
Other Assets	106,594	114,391
Liabilities:
Securitized debt, collateralized by Non-Agency RMBS	179,742	205,780
Securitized debt at fair value, collateralized by loans held for investment	9,340,368	9,388,657
Accrued interest payable	71,405	61,888
Other liabilities	13,818	17,191
Variable Interest Entities, Primary Beneficiary
Assets:
Non-Agency RMBS, at fair value	1,280,378	1,579,793
Loans held for investment, at fair value	13,045,302	13,263,338
Accrued interest receivable	75,390	75,489
Other Assets	54,708	68,844
Liabilities:
Securitized debt, collateralized by Non-Agency RMBS	179,742	205,780
Securitized debt at fair value, collateralized by loans held for investment	9,340,368	9,388,657
Accrued interest payable	35,754	33,870
Other liabilities	$ 3,285	$ 3,513

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Consolidated Securitization Vehicles and Other Variable Interest Entities - Effect on Consolidated Results (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Variable Interest Entity [Line Items]
Net interest income	$ 145,170	$ 150,689	$ 293,049	$ 291,802
Total other-than-temporary impairment losses	(805)	(749)	(1,099)	(3,462)
Portion of loss recognized in other comprehensive income (loss)	(8,326)	(12,760)	(9,190)	(28,748)
Net other-than-temporary credit impairment losses	(9,131)	(13,509)	(10,289)	(32,210)
Servicing fees	9,943	10,890	21,277	20,478
Variable Interest Entities, Primary Beneficiary
Variable Interest Entity [Line Items]
Total other-than-temporary impairment losses	(351)	(696)	(351)	(1,109)
Portion of loss recognized in other comprehensive income (loss)	(8,561)	(12,146)	(8,561)	(25,613)
Net other-than-temporary credit impairment losses	(8,912)	(12,842)	(8,912)	(26,722)
Servicing fees	9,722	10,890	20,133	20,478
Non Agency Residential Mortgage Backed Securities And Securitized Loans | Variable Interest Entities, Primary Beneficiary
Variable Interest Entity [Line Items]
Interest income, Assets of consolidated VIEs	229,746	234,437	464,772	427,426
Interest expense, Non-recourse liabilities of VIEs	99,507	105,723	199,121	188,407
Net interest income	$ 130,239	$ 128,714	$ 265,651	$ 239,019

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Derivative Instruments - Effect on Consolidated Financial Condition (Detail) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Derivatives, Fair Value [Line Items]
Notional Amount Outstanding	$ 8,365,100,000	$ 4,827,100,000
Derivatives, at fair value, net	129,341,000	48,914,000
Derivative Liabilities, Net Estimated Fair Value/Carrying Value	0	(320,000)
Interest Rate Swaps
Derivatives, Fair Value [Line Items]
Notional Amount Outstanding	7,692,400,000	3,816,400,000
Derivatives, at fair value, net	123,975,000	43,257,000
Derivative Liabilities, Net Estimated Fair Value/Carrying Value	0	0
Swaptions
Derivatives, Fair Value [Line Items]
Notional Amount Outstanding	53,000,000	391,000,000
Derivatives, at fair value, net	2,417,000	2,105,000
Derivative Liabilities, Net Estimated Fair Value/Carrying Value	0	(320,000)
Treasury Futures
Derivatives, Fair Value [Line Items]
Notional Amount Outstanding	619,700,000	619,700,000
Derivatives, at fair value, net	2,949,000	3,552,000
Derivative Liabilities, Net Estimated Fair Value/Carrying Value	$ 0	$ 0

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Derivative Instruments - Effect on Consolidated Results (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Net unrealized gains (losses) on derivatives	$ 25,895	$ 5,802	$ 107,314	$ 10,698
Net gains (losses) on derivatives	24,502	(21,822)	119,007	(26,284)
Realized gains (losses) on terminations of interest rate swaps	0	16,143	0	16,143
Interest Rate Swaps
Derivative Instruments, Gain (Loss) [Line Items]
Net unrealized gains (losses) on derivatives	21,165	4,377	106,129	10,693
Net realized gains (losses) on derivatives	1,246	(19,629)	(1,365)	(23,733)
Treasury Futures
Derivative Instruments, Gain (Loss) [Line Items]
Net unrealized gains (losses) on derivatives	5,984	2,179	(604)	(388)
Net realized gains (losses) on derivatives	(2,210)	(6,914)	14,215	(8,999)
Swaptions
Derivative Instruments, Gain (Loss) [Line Items]
Net unrealized gains (losses) on derivatives	(1,254)	(754)	1,789	393
Net realized gains (losses) on derivatives	$ (429)	$ (1,081)	$ (1,157)	$ (4,250)

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Derivative Instruments - Narrative (Detail) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
The weighted average pay rate on the Company's interest rate swaps	2.35%	1.93%
The weighted average receive rate on the Company's interest rate swaps	2.33%	1.53%
The weighted average maturity on the Company's interest rate swaps	6 years	5 years
Fair value of credit risk derivative instruments in a net liability position	$ 143

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Capital Stock - Preferred Stock (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Class of Stock [Line Items]
Dividends on preferred stock	$ 9,400	$ 9,400	$ 18,800	$ 14,683
Preferred Class A
Class of Stock [Line Items]
Dividends on preferred stock	$ 3,000	$ 3,000	$ 6,000	$ 6,000
Preferred stock dividends declared (in USD per share)	$ 0.5	$ 0.50	$ 1	$ 1.00
Preferred Class B
Class of Stock [Line Items]
Dividends on preferred stock	$ 7,000	$ 7,000	$ 13,000	$ 9,000
Preferred stock dividends declared (in USD per share)	$ 0.5	$ 0.5	$ 0.9999910769	$ 0.68333

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Capital Stock - Common Stock (Detail) - USD ($) $ / shares in Units, shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Feb. 28, 2018
Class of Stock [Line Items]
Stock repurchase program, authorized amount					$ 100,000,000
Stock repurchased during period (in shares)	883
Stock repurchased during period, average price (in dollars per share)	$ 16.81
Stock repurchased during period	$ 15,000,000		$ 14,834,000	$ 0
Common dividends declared			$ 187,832,000	$ 188,196,000
Dividends declared per share of common stock (usd per share)	$ 0.50	$ 0.5	$ 1	$ 1
Regular Dividend
Class of Stock [Line Items]
Common dividends declared	$ 94,000,000	$ 94,000,000	$ 188,000,000	$ 188,000,000

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Capital Stock - Earnings Per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Numerator:
Net income available to common shareholders	$ 108,708	$ 105,617	$ 338,316	$ 263,141
Effect of dilutive securities:	0	0	0	0
Dilutive net income available to common shareholders	$ 108,708	$ 105,617	$ 338,316	$ 263,141
Denominator:
Weighted average basic shares (shares)	186,994,743	187,779,406	187,272,469	187,770,626
Effect of dilutive securities (shares)	427,402	363,145	465,974	398,467
Weighted average dilutive shares (shares)	187,422,145	188,142,551	187,738,443	188,169,093
Net income per average share attributable to common stockholders - Basic (usd per share)	$ 0.58	$ 0.56	$ 1.81	$ 1.40
Net income per average share attributable to common stockholders - Diluted (usd per share)	$ 0.58	$ 0.56	$ 1.80	$ 1.40

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Accumulated Other Comprehensive Income - Components of AOCI (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
AOCI [Roll Forward]
Beginning Balance	$ 3,634,977	$ 3,123,533
OCI before reclassifications	(131,157)	37,744
Amounts reclassified from AOCI	5,906	24,433
Net current period OCI	(125,251)	62,177
Ending Balance	3,650,142	3,576,687
Unrealized gains (losses) on available-for-sale securities, net
AOCI [Roll Forward]
Beginning Balance	796,902	718,106
OCI before reclassifications	(131,157)	37,744
Amounts reclassified from AOCI	5,906	24,433
Net current period OCI	(125,251)	62,177
Ending Balance	671,651	780,283
Total Accumulated OCI Balance
AOCI [Roll Forward]
Beginning Balance	796,902	718,106
Ending Balance	$ 671,651	$ 780,283

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Accumulated Other Comprehensive Income - Reclassifications from AOCI (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net realized gains (losses) on sales of investments	$ 2,167	$ 4,541	$ 2,167	$ 9,708
Net other-than-temporary credit impairment losses	(9,131)	(13,509)	(10,289)	(32,210)
Income before income taxes	118,144	115,156	357,184	277,979
Income taxes	(36)	(139)	(68)	(155)	$ 0
Net income (loss)	$ 118,108	$ 115,017	357,116	277,824
Amounts Reclassified from Accumulated OCI | Unrealized gains (losses) on available-for-sale securities, net
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net realized gains (losses) on sales of investments			4,383	7,777
Net other-than-temporary credit impairment losses			(10,289)	(32,210)
Income before income taxes			(5,906)	(24,433)
Income taxes			0	0
Net income (loss)			$ (5,906)	$ (24,433)

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Equity Compensation, Employment Agreements and other Benefit Plans - Narrative (Detail) shares in Thousands	3 Months Ended				6 Months Ended		12 Months Ended
	Jun. 30, 2018 USD ($) shares	Mar. 31, 2018 USD ($) shares	Jun. 30, 2017 USD ($)	Mar. 31, 2017 USD ($) installment shares	Jun. 30, 2018 USD ($) shares	Jun. 30, 2017 USD ($)	Dec. 31, 2017 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common dividends declared	$ 2,000,000		$ 1,000,000		$ 3,000,000	$ 2,000,000
401(k) Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum annual contributions per employee, amount					18,500
Maximum annual contribution per employee, additional contribution per employee over certain age					6,000
Expense related to qualified plan	$ 137,000		$ 103,000		$ 251,000	$ 215,000
Maximum | 401(k) Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employer matching contribution, percent of match					100.00%
Employer matching contribution, percent of employees' gross pay					6.00%
Stock Award Deferral Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of installments | installment				5
Restricted Stock | 2007 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period					3 years
Shares available for future grants (shares) | shares	6,000				6,000
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period					3 years
Forfeitures (shares) | shares		241		112
Grant date fair value		$ 4,000,000		$ 2,000,000
Restricted Stock Units (RSUs) | One year from grant date
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage					33.33%
Restricted Stock Units (RSUs) | Two years from grant date
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage					33.33%
Restricted Stock Units (RSUs) | Three years from grant date
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage					33.33%
Performance Share Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period					3 years
Grant date fair value					$ 2,000,000		$ 3,000,000
Granted shares (shares) | shares		133		144	133
Performance period					3 years
Performance Share Units | One year from grant date
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage					33.33%
Performance Share Units | Two years from grant date
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage					33.33%
Performance Share Units | Three years from grant date
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage					33.33%
Performance Share Units | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage					0.00%
Performance Share Units | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage					150.00%

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Income Taxes Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Income tax expense	$ 36	$ 139	$ 68	$ 155	$ 0

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Credit Risk and Interest Rate Risk - Offsetting Assets and Liabilities (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Repurchase Agreements
Gross Amounts of Recognized Assets (Liabilities)	$ (9,127,048)	$ (7,250,452)
Gross Amounts Offset in the Consolidated Statements of Financial Position	0	0
Net Amounts Offset in the Consolidated Statements of Financial Position	(9,127,048)	(7,250,452)
Gross Amounts Not Offset with Financial Assets (Liabilities) in the Consolidated Statements of Financial Position, Financial Instruments	10,626,383	8,788,680
Gross Amounts Not Offset with Financial Assets (Liabilities) in the Consolidated Statements of Financial Position, Cash Collateral (Received) Pledged	0	1,156
Net Amount	1,499,335	1,539,384
Derivative Asset
Net Amounts Offset in the Consolidated Statements of Financial Position	129,341	48,914
Derivative Liability
Net Amounts Offset in the Consolidated Statements of Financial Position	0	(320)
Total Liabilities
Gross Amounts of Recognized Assets (Liabilities)	(8,972,297)	(7,201,858)
Gross Amounts Offset in the Consolidated Statements of Financial Position	(25,410)	0
Net Amounts Offset in the Consolidated Statements of Financial Position	(8,997,707)	(7,201,858)
Gross Amounts Not Offset with Financial Assets (Liabilities) in the Consolidated Statements of Financial Position, Financial Instruments	10,626,383	8,788,680
Gross Amounts Not Offset with Financial Assets (Liabilities) in the Consolidated Statements of Financial Position, Cash Collateral (Received) Pledged	18,184	13,102
Net Amount	1,646,860	1,599,924
Interest Rate Swaps
Derivative Asset
Gross Amounts of Recognized Assets (Liabilities)	166,115	44,874
Gross Amounts Offset in the Consolidated Statements of Financial Position	(42,140)	(1,617)
Net Amounts Offset in the Consolidated Statements of Financial Position	123,975	43,257
Gross Amounts Not Offset with Financial Assets (Liabilities) in the Consolidated Statements of Financial Position, Financial Instruments	0	0
Gross Amounts Not Offset with Financial Assets (Liabilities) in the Consolidated Statements of Financial Position, Cash Collateral (Received) Pledged	16,079	11,570
Net Amount	140,054	54,827
Derivative Liability
Gross Amounts of Recognized Assets (Liabilities)	(16,730)	(1,617)
Gross Amounts Offset in the Consolidated Statements of Financial Position	16,730	1,617
Net Amounts Offset in the Consolidated Statements of Financial Position	0	0
Gross Amounts Not Offset with Financial Assets (Liabilities) in the Consolidated Statements of Financial Position, Financial Instruments	0	0
Gross Amounts Not Offset with Financial Assets (Liabilities) in the Consolidated Statements of Financial Position, Cash Collateral (Received) Pledged	0	0
Net Amount	0	0
Treasury Futures
Derivative Asset
Gross Amounts of Recognized Assets (Liabilities)	2,949	3,552
Gross Amounts Offset in the Consolidated Statements of Financial Position	0	0
Net Amounts Offset in the Consolidated Statements of Financial Position	2,949	3,552
Gross Amounts Not Offset with Financial Assets (Liabilities) in the Consolidated Statements of Financial Position, Financial Instruments	0	0
Gross Amounts Not Offset with Financial Assets (Liabilities) in the Consolidated Statements of Financial Position, Cash Collateral (Received) Pledged	2,105	376
Net Amount	5,054	3,928
Derivative Liability
Gross Amounts of Recognized Assets (Liabilities)	0	0
Gross Amounts Offset in the Consolidated Statements of Financial Position	0	0
Net Amounts Offset in the Consolidated Statements of Financial Position	0	0
Gross Amounts Not Offset with Financial Assets (Liabilities) in the Consolidated Statements of Financial Position, Financial Instruments	0	0
Gross Amounts Not Offset with Financial Assets (Liabilities) in the Consolidated Statements of Financial Position, Cash Collateral (Received) Pledged	0	0
Net Amount	0	0
Swaptions
Derivative Asset
Gross Amounts of Recognized Assets (Liabilities)	2,417	2,105
Gross Amounts Offset in the Consolidated Statements of Financial Position	0	0
Net Amounts Offset in the Consolidated Statements of Financial Position	2,417	2,105
Gross Amounts Not Offset with Financial Assets (Liabilities) in the Consolidated Statements of Financial Position, Financial Instruments	0	0
Gross Amounts Not Offset with Financial Assets (Liabilities) in the Consolidated Statements of Financial Position, Cash Collateral (Received) Pledged	0	0
Net Amount	2,417	2,105
Derivative Liability
Gross Amounts of Recognized Assets (Liabilities)	0	(320)
Gross Amounts Offset in the Consolidated Statements of Financial Position	0	0
Net Amounts Offset in the Consolidated Statements of Financial Position	0	(320)
Gross Amounts Not Offset with Financial Assets (Liabilities) in the Consolidated Statements of Financial Position, Financial Instruments	0	0
Gross Amounts Not Offset with Financial Assets (Liabilities) in the Consolidated Statements of Financial Position, Cash Collateral (Received) Pledged	0	0
Net Amount	$ 0	$ (320)