MFA Financial (MFA) 10-K 21 Feb 19 2018 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2018	Feb. 14, 2019	Jun. 29, 2018
Document and Entity Information
Entity Registrant Name	MFA FINANCIAL, INC.
Entity Central Index Key	1,055,160
Document Type	10-K
Document Period End Date	Dec. 31, 2018
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float			$ 3
Entity Common Stock, Shares Outstanding (in shares)		450,476,867
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	FY
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Residential mortgage securities:
MBS and CRT securities	$ 6,509,333	$ 7,023,050
Residential whole loans, at carrying value ($1,645,372 and $448,689 pledged as collateral, respectively)	3,016,715	908,516
Residential whole loans, at fair value ($738,638 and $996,226 pledged as collateral, respectively)	1,665,978	1,325,115
Mortgage servicing rights (“MSR”) related assets ($611,807 and $482,158 pledged as collateral, respectively)	611,807	492,080
Cash and cash equivalents	51,965	449,757
Restricted cash	36,744	13,986
Other assets	527,785	742,230
Total Assets	12,420,327	10,954,734
Liabilities:
Repurchase agreements	7,879,087	6,614,701
Other liabilities	1,125,139	1,078,397
Total Liabilities	9,004,226	7,693,098
Commitments and contingencies (See Note 10)
Stockholders’ Equity:
Preferred stock, $.01 par value; 7.50% Series B cumulative redeemable; 8,050 shares authorized; 8,000 shares issued and outstanding ($200,000 aggregate liquidation preference)	80	80
Common stock, $.01 par value; 886,950 shares authorized; 449,787 and 397,831 shares issued and outstanding, respectively	4,498	3,978
Additional paid-in capital, in excess of par	3,623,275	3,227,304
Accumulated deficit	(632,040)	(578,950)
Accumulated other comprehensive income	420,288	609,224
Total Stockholders’ Equity	3,416,101	3,261,636
Total Liabilities and Stockholders’ Equity	12,420,327	10,954,734
Non-Agency MBS Transfered to Consolidated VIEs
Residential mortgage securities:
Residential whole loans, at carrying value ($1,645,372 and $448,689 pledged as collateral, respectively)	209,400	183,200
Residential whole loans, at fair value ($738,638 and $996,226 pledged as collateral, respectively)	694,700	289,300
Agency MBS
Residential mortgage securities:
MBS and CRT securities	2,698,213	2,824,681
Liabilities:
Repurchase agreements	2,384,357	2,501,340
Non-Agency MBS
Residential mortgage securities:
MBS and CRT securities	3,318,299	3,533,966
Liabilities:
Repurchase agreements	1,447,585	1,256,033
Non-Agency MBS | Non-Agency MBS
Residential mortgage securities:
MBS and CRT securities	3,318,299	3,533,966
CRT securities
Residential mortgage securities:
MBS and CRT securities	492,821	664,403
Liabilities:
Repurchase agreements	$ 391,586	$ 459,058

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
MSR Related Assets, pledged as collateral	$ 611,807,000	$ 482,158,000
Residential whole loans, at carrying value ($1,645,372 and $448,689 pledged as collateral, respectively) (1)	1,645,372,000	448,689,000
Residential whole loans, at fair value ($738,638 and $996,226 pledged as collateral, respectively) (1)	$ 738,638,000	$ 996,226,000
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	8,050,000	8,050,000
Preferred stock, dividend rate	7.50%	7.50%
Preferred stock, shares issued (in shares)	8,000,000	8,000,000
Preferred stock, shares outstanding (in shares)	8,000,000	8,000,000
Preferred stock, aggregate liquidation preference (in dollars)	$ 200,000,000	$ 200,000,000
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	886,950,000	886,950,000
Common stock, shares issued (in shares)	449,787,000	397,831,000
Common stock, shares outstanding (in shares)	449,787,000	397,831,000
Collateral Pledged | Agency MBS
Securities, at fair value, pledged as collateral	$ 2,575,331,000	$ 2,727,510,000
Collateral Pledged | Non-Agency MBS
Securities, at fair value, pledged as collateral	3,248,900,000	2,379,523,000
Collateral Pledged | CRT securities
Securities, at fair value, pledged as collateral	$ 480,315,000	$ 595,900,000

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Interest Income:
Residential whole loans held at carrying value	$ 100,921	$ 36,187	$ 23,916
MSR-related assets	28,420	24,830	2,100
Cash and cash equivalent investments	2,936	4,249	774
Other interest-earning assets	923	0	0
Interest Income	455,675	433,448	457,450
Interest Expense:
Repurchase agreements	205,338	186,347	184,986
Other interest expense	26,848	10,794	8,369
Interest Expense	232,186	197,141	193,355
Net Interest Income	223,489	236,307	264,095
Other Income, net:
Net gain on residential whole loans measured at fair value through earnings	137,619	90,045	62,605
Net realized gain on sales of residential mortgage securities	61,307	39,577	35,837
Net unrealized (loss)/gain on residential mortgage securities measured at fair value through earnings	(36,815)	27,709	12,962
Net loss on Swaps not designated as hedges for accounting purposes	(9,610)	0	0
Other, net	5,474	656	(2,847)
Other Income, net	157,975	157,987	108,557
Operating and Other Expense:
Compensation and benefits	28,423	31,673	29,281
Other general and administrative expense	17,653	17,960	16,331
Loan servicing and other related operating expenses	33,587	22,268	14,372
Operating and Other Expense	79,663	71,901	59,984
Net Income	301,801	322,393	312,668
Less Preferred Stock Dividends	15,000	15,000	15,000
Net Income Available to Common Stock and Participating Securities	$ 286,801	$ 307,393	$ 297,668
Earnings per Common Share - Basic and Diluted (usd per share)	$ 0.68	$ 0.79	$ 0.80
Agency MBS
Interest Income:
Mortgage backed securities	$ 62,303	$ 65,355	$ 83,069
Non-Agency MBS | Non-Agency MBS
Interest Income:
Mortgage backed securities	226,796	271,112	332,821
CRT securities
Interest Income:
Mortgage backed securities	$ 33,376	$ 31,715	$ 14,770

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME/(LOSS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Net income	$ 301,801	$ 322,393	$ 312,668
Other Comprehensive Income/(Loss):
Reclassification adjustment for MBS sales included in net income	(51,580)	(38,707)	(36,922)
Reclassification adjustment for other-than-temporary impairments included in net income	(1,259)	(1,032)	(485)
Derivative hedging instrument fair value changes, net	14,545	35,297	22,678
Other Comprehensive Income/(Loss)	(188,936)	35,542	57,831
Comprehensive income before preferred stock dividends	112,865	357,935	370,499
Dividends declared on preferred stock	(15,000)	(15,000)	(15,000)
Comprehensive Income Available to Common Stock and Participating Securities	97,865	342,935	355,499
Agency MBS
Other Comprehensive Income/(Loss):
Unrealized (loss)/gain on holdings	(17,891)	(39,158)	(9,322)
Non-Agency MBS, CRT Securities and MSR Term Notes
Other Comprehensive Income/(Loss):
Unrealized (loss)/gain on holdings	$ (132,751)	$ 79,142	$ 81,882

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands		Total	Preferred StockSeries B Preferred Stock	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Income
Balance (in shares) at Dec. 31, 2015			8,000,000	370,584,000
Balance at Dec. 31, 2015		$ 2,967,261	$ 80	$ 3,706	$ 3,019,956	$ (572,332)	$ 515,851
Increase (Decrease) in Stockholders' Equity
Net income		312,668				312,668
Issuance of common stock, net of expenses (in shares)	[1]			1,758,000
Issuance of common stock, net of expenses	[1]	4,660		$ 13	4,647
Repurchase of shares of common stock (in shares)	[1]			(488,000)
Repurchase of shares of common stock	[1]	(3,551)		$ 0	(3,551)
Equity based compensation expense		8,695			8,695
Accrued dividends attributable to stock-based awards		(685)			(685)
Dividends declared on common stock		(297,046)				(297,046)
Dividends declared on preferred stock		(15,000)				(15,000)
Dividends attributable to dividend equivalents		(931)				(931)
Change in unrealized gains on MBS, net		35,153					35,153
Derivative hedging instrument fair value changes, net		22,678					22,678
Balance (in shares) at Dec. 31, 2016			8,000,000	371,854,000
Balance at Dec. 31, 2016		3,033,902	$ 80	$ 3,719	3,029,062	(572,641)	573,682
Increase (Decrease) in Stockholders' Equity
Net income		322,393				322,393
Issuance of common stock, net of expenses (in shares)	[1]			26,722,000
Issuance of common stock, net of expenses	[1]	196,808		$ 259	196,549
Repurchase of shares of common stock (in shares)	[1]			(745,000)
Repurchase of shares of common stock	[1]	(5,995)			(5,995)
Equity based compensation expense		7,872			7,872
Accrued dividends attributable to stock-based awards		(184)			(184)
Dividends declared on common stock		(312,810)				(312,810)
Dividends declared on preferred stock		(15,000)				(15,000)
Dividends attributable to dividend equivalents		(892)				(892)
Change in unrealized gains on MBS, net		245					245
Derivative hedging instrument fair value changes, net		35,297					35,297
Balance (in shares) at Dec. 31, 2017			8,000,000	397,831,000
Balance at Dec. 31, 2017		3,261,636	$ 80	$ 3,978	3,227,304	(578,950)	609,224
Increase (Decrease) in Stockholders' Equity
Net income		301,801				301,801
Issuance of common stock, net of expenses (in shares)	[1]			52,420,000
Issuance of common stock, net of expenses	[1]	392,145		$ 520	391,625
Repurchase of shares of common stock (in shares)	[1]			(464,000)
Repurchase of shares of common stock	[1]	(3,392)			(3,392)
Equity based compensation expense		7,999			7,999
Accrued dividends attributable to stock-based awards		(261)			(261)
Dividends declared on common stock		(339,244)				(339,244)
Dividends declared on preferred stock		(15,000)				(15,000)
Dividends attributable to dividend equivalents		(942)				(942)
Change in unrealized gains on MBS, net		(203,481)					(203,481)
Derivative hedging instrument fair value changes, net		14,545					14,545
Balance (in shares) at Dec. 31, 2018			8,000,000	449,787,000
Balance at Dec. 31, 2018		$ 3,416,101	$ 80	$ 4,498	$ 3,623,275	$ (632,040)	$ 420,288
[1]	For the year ended December 31, 2018, includes approximately $3.4 million (464,429 shares) surrendered for tax purposes related to equity-based compensation awards. For the year ended December 31, 2017, includes approximately $6.0 million (744,588 shares) surrendered for tax purposes related to equity-based compensation awards. For the year ended December 31, 2016, includes approximately $3.6 million (487,559 shares) surrendered for tax purposes related to equity-based compensation awards.

CONSOLIDATED STATEMENTS OF CH_2

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Preferred stock, dividend rate	7.50%	7.50%
Common Stock
Adjustments related to tax withholding for share-based compensation	$ 3.4	$ 6	$ 3.6
Shares paid for tax withholding for share based compensation (in shares)	464,429	744,588	487,559
Preferred Stock | Series B Preferred Stock
Preferred stock, dividend rate	7.50%	7.50%	7.50%
Preferred stock, liquidation preference (in dollars per share)	$ 25	$ 25	$ 25

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)
Cash Flows From Operating Activities:
Net income	$ 301,801	$ 322,393	$ 312,668
Adjustments to reconcile net income to net cash provided by operating activities:
Gain on sales of residential mortgage securities and U.S. Treasury securities	(61,307)	(39,577)	(35,837)
Gain on sales of real estate owned	(7,715)	(4,475)	(3,229)
Gain on liquidation of residential whole loans	(22,409)	(11,868)	0
Other-than-temporary impairment charges	1,259	1,032	485
Accretion of purchase discounts on residential mortgage securities, residential whole loans and MSR-related assets	(82,904)	(86,318)	(84,615)
Amortization of purchase premiums on residential mortgage securities and residential whole loans	29,270	30,330	36,725
Depreciation and amortization on real estate, fixed assets and other assets	1,825	1,519	964
Equity-based compensation expense	8,007	8,033	9,162
Unrealized gain on residential whole loans at fair value	(36,725)	(33,617)	(31,254)
Unrealized losses/(gains) on residential mortgage securities and swaps	43,234	(27,091)	(7,640)
(Increase)/decrease in other assets	(26,487)	21,964	(11,095)
Increase/(decrease) in other liabilities	32	(5,813)	(6,943)
Net cash provided by operating activities	147,881	176,512	179,391
Cash Flows From Investing Activities:
Principal payments on residential mortgage securities and MSR-related assets	2,327,817	3,996,489	3,339,597
Proceeds from sales of residential mortgage securities and U.S. Treasury securities	538,668	243,081	85,594
Purchases of residential mortgage securities, MSR-related assets and U.S. Treasury securities	(2,604,234)	(1,583,130)	(1,997,838)
Purchases of residential whole loans, loan related investments and capitalized advances	(3,058,839)	(1,065,981)	(677,003)
Principal payments on residential whole loans	531,909	160,469	103,997
Proceeds from sales of real estate owned	121,304	75,671	34,200
Purchases of real estate owned and capital improvements	(13,367)	(19,801)	(2,825)
Redemption of Federal Home Loan Bank stock	0	10,422	51,400
Purchases of Federal Home Loan Bank stock	0	0	(1,805)
Additions to leasehold improvements, furniture and fixtures	(1,133)	(872)	(708)
Net cash (used in)/provided by investing activities	(2,157,875)	1,816,348	934,609
Cash Flows From Financing Activities:
Principal payments on repurchase agreements and other advances	(67,063,283)	(72,563,218)	(82,408,484)
Proceeds from borrowings under repurchase agreements	68,327,462	70,490,091	81,706,806
Proceeds from issuance of securitized debt	419,970	382,847	0
Principal payments on securitized debt	(97,969)	(16,562)	(22,057)
Payments made for securitization related costs	(2,497)	(2,646)	0
Payments made for settlements on interest rate swap agreements (“Swaps”)	(61,502)	(11,424)	0
Proceeds from settlements on Swaps	65,393	0	0
Proceeds from issuances of common stock	392,474	197,223	4,660
Payments made for costs related to common stock issuances	329	415	0
Payments made for costs related to common stock issuances	(15,000)	(15,000)	(15,000)
Dividends paid on preferred stock	(329,759)	(308,588)	(297,895)
Net cash provided by/(used in) financing activities	1,634,960	(1,847,692)	(1,031,970)
Net (decrease)/increase in cash, cash equivalents and restricted cash	(375,034)	145,168	82,030
Cash, cash equivalents and restricted cash at beginning of period	463,743	318,575	236,545
Cash, cash equivalents and restricted cash at end of period	88,709	463,743	318,575
Supplemental Disclosure of Cash Flow Information
Interest Paid	232,657	198,159	194,626
Non-cash Investing and Financing Activities:
Net (decrease)/increase in securities obtained as collateral/obligation to return securities obtained as collateral	(505,850)	134,100	5,385
Transfer from residential whole loans to real estate owned	215,038	136,734	91,896
Dividends and dividend equivalents declared and unpaid	90,198	79,771	74,657
Payable for unsettled residential whole loans purchases	$ 211,129	$ 0	$ 0

Organization

Organization	12 Months Ended
	Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization	Organization MFA Financial, Inc. (the “Company”) was incorporated in Maryland on July 24, 1997 and began operations on April 10, 1998. The Company has elected to be treated as a real estate investment trust (“REIT”) for U.S. federal income tax purposes. In order to maintain its qualification as a REIT, the Company must comply with a number of requirements under federal tax law, including that it must distribute at least 90% of its annual REIT taxable income to its stockholders. The Company has elected to treat certain of its subsidiaries as a taxable REIT subsidiary (“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. (See Notes 2 ( o )

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2018
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies ( a ) Basis of Presentation and Consolidation The accompanying consolidated financial statements of the Company have been prepared on the accrual basis of accounting in accordance with U.S. generally accepted accounting principles (“GAAP”). 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 differ from those estimates, which could materially impact the Company’s results of operations and its financial condition. Management has made significant estimates in several areas, including other-than-temporary impairment (“OTTI”) on mortgage-backed securities (“MBS”) (See Note 3 ), valuation of MBS, CRT securities and MSR- related assets (See Notes 3 and 14 ), income recognition and valuation of residential whole loans (See Notes 4 and 14 ), valuation of derivative instruments (See Notes 5 ( c ) and 14 ) and income recognition on certain Non-Agency MBS (defined below) purchased at a discount. (See Note 3 ) In addition, estimates are used in the determination of taxable income used in the assessment of REIT compliance and contingent liabilities for related taxes, penalties and interest. (See Note 2 ( o )) Actual results could differ from those estimates. The Company has one reportable segment as it manages its business and analyzes and reports its results of operations on the basis of one operating segment; investing, on a leveraged basis, in residential mortgage assets. The consolidated financial statements of the Company include the accounts of all subsidiaries; all intercompany accounts and transactions have been eliminated. In addition, the Company consolidates entities established to facilitate transactions related to the acquisition and securitization of residential whole loans as well as MBS resecuritization transactions completed in prior years. Certain prior period amounts have been reclassified to conform to the current period presentation. ( b ) Residential Mortgage Securities The Company has investments in residential MBS that are issued or guaranteed as to principal and/or interest by a federally chartered corporation, such as the Federal National Mortgage Association (“Fannie Mae”) or the Federal Home Loan Mortgage Corporation (“Freddie Mac”), or an agency of the U.S. Government, such as the Government National Mortgage Association (“Ginnie Mae”) (collectively, “Agency MBS”), and residential MBS that are not guaranteed by any agency of the U.S. Government or any federally chartered corporation (“Non-Agency MBS”). In addition, the Company has investments in CRT securities that are issued or sponsored by Fannie Mae and Freddie Mac. The coupon payments on CRT securities are paid by Fannie Mae and Freddie Mac and the principal payments received are dependent on the performance of loans in either a reference pool or an actual pool of loans. As the loans in the underlying pool are paid, the principal balance of the CRT securities is paid. As an investor in a CRT security, the Company may incur a principal loss if the performance of the actual or reference pool loans results in either an actual or calculated loss that exceeds the credit enhancement of the security owned by the Company. Designation MBS that the Company generally intends to hold until maturity, but that it may sell from time to time as part of the overall management of its business, are designated as “available-for-sale” (“AFS”). Such MBS are carried at their fair value with unrealized gains and losses excluded from earnings (except when an OTTI is recognized, as discussed below) and reported in Accumulated other comprehensive income/(loss) (“AOCI”), a component of Stockholders’ Equity. Upon the sale of an AFS security, any unrealized gain or loss is reclassified out of AOCI to earnings as a realized gain or loss using the specific identification method. The Company has elected the fair value option for certain of its Agency MBS that it does not intend to hold to maturity. These securities are carried at their fair value with changes in fair value included in earnings for the period and reported in Other Income, net on the Company’s consolidated statements of operations. The Company has elected the fair value option for certain of its CRT securities as it considers this method of accounting to more appropriately reflect the risk sharing structure of these securities. Such securities are carried at their fair value with changes in fair value included in earnings for the period and reported in Other Income, net on the Company’s consolidated statements of operations. Revenue Recognition, Premium Amortization and Discount Accretion Interest income on securities is accrued based on the outstanding principal balance and their contractual terms. Premiums and discounts associated with Agency MBS and Non-Agency MBS assessed as high credit quality at the time of purchase are amortized into interest income over the life of such securities using the effective yield method. Adjustments to premium amortization are made for actual prepayment activity. Interest income on the Non-Agency MBS that were purchased at a discount to par value and/or are considered to be of less than high credit quality is recognized based on the security’s effective interest rate which is the security’s internal rate of return (“IRR”). The IRR is determined using management’s estimate of the projected cash flows for each security, which are based on the Company’s observation of current information and events and include assumptions related to fluctuations in interest rates, prepayment speeds and the timing and amount of credit losses. On at least a quarterly basis, the Company reviews and, if appropriate, makes adjustments to its cash flow projections based on input and analysis received from external sources, internal models, and its judgment about interest rates, prepayment rates, the timing and amount of credit losses, and other factors. Changes in cash flows from those originally projected, or from those estimated at the last evaluation, may result in a prospective change in the IRR/ interest income recognized on these securities or in the recognition of OTTIs. (See Note 3 ) Based on the projected cash flows from the Company’s Non-Agency MBS purchased at a discount to par value, a portion of the purchase discount may be designated as non-accretable purchase discount (“Credit Reserve”), which effectively mitigates the Company’s risk of loss on the mortgages collateralizing such MBS and is not expected to be accreted into interest income. The amount designated as Credit Reserve 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 with a Credit Reserve is more favorable than forecasted, a portion of the amount designated as Credit Reserve may be reallocated to accretable discount and recognized into interest income over time. Conversely, if the performance of a security with a Credit Reserve is less favorable than forecasted, the amount designated as Credit Reserve may be increased, or impairment charges and write-downs of such securities to a new cost basis could result. Determination of Fair Value for Residential Mortgage Securities In determining the fair value of the Company’s residential mortgage securities, management considers a number of observable market data points, including prices obtained from pricing services, brokers and repurchase agreement counterparties, dialogue with market participants, as well as management’s observations of market activity. (See Note 14 ) Impairments/OTTI When the fair value of an AFS security is less than its amortized cost at the balance sheet date, the security is considered impaired. The Company assesses its impaired securities on at least a quarterly basis and designates such impairments as either “temporary” or “other-than-temporary.” If the Company intends to sell an impaired security, or it is more likely than not that it will be required to sell the impaired security before its anticipated recovery, then the Company must recognize an OTTI through charges to earnings equal to the entire difference between the investment’s amortized cost and its fair value at the balance sheet date. If the Company does not expect to sell an other-than-temporarily impaired security, only the portion of the impairment related to credit losses is recognized through charges to earnings with the remainder recognized through AOCI on the consolidated balance sheets. Impairments recognized through other comprehensive income/(loss) (“OCI”) do not impact earnings. Following the recognition of an OTTI through earnings, a new cost basis is established for the security, which may not be adjusted for subsequent recoveries in fair value through earnings. However, OTTIs recognized through charges to earnings may, upon recovery, be accreted back to the amortized cost basis of the security on a prospective basis through interest income. The determination as to whether an OTTI exists and, if so, the amount of credit impairment recognized in earnings is subjective, as such determinations are based on factual information available at the time of assessment as well as the Company’s estimates of future performance and cash flow projections. As a result, the timing and amount of OTTIs constitute material estimates that are susceptible to significant change. (See Note 3 ) Non-Agency MBS that are assessed to be of less than high credit quality and on which impairments are recognized have experienced, or are expected to experience, credit-related adverse cash flow changes. The Company’s estimate of cash flows for its Non-Agency MBS is based on its review of the underlying mortgage loans securing the MBS. The Company considers information available about the past and expected future performance of underlying mortgage loans, including timing of expected future cash flows, prepayment rates, default rates, loss severities, delinquency rates, percentage of non-performing loans, year of origination, loan-to-value ratios (“LTVs”), geographic concentrations and dialogue with market participants. As a result, significant judgment is used in the Company’s analysis to determine the expected cash flows for its Non-Agency MBS. In determining the OTTI related to credit losses for securities that were purchased at significant discounts to par and/or are considered to be of less than high credit quality, the Company compares the present value of the remaining cash flows expected to be collected at the purchase date (or last date previously revised) against the present value of the cash flows expected to be collected at the current financial reporting date. The discount rate used to calculate the present value of expected future cash flows is the current yield used for income recognition purposes. Impairment assessment for Non-Agency MBS that were purchased at prices close to par and/or are otherwise considered to be of high credit quality involves comparing the present value of the remaining cash flows expected to be collected against the amortized cost of the security at the assessment date. The discount rate used to calculate the present value of the expected future cash flows is based on the instrument’s IRR. Balance Sheet Presentation The Company’s residential mortgage securities pledged as collateral against repurchase agreements and Swaps are included on the consolidated balance sheets with the fair value of the securities pledged disclosed parenthetically. Purchases and sales of securities are recorded on the trade date. ( c ) Residential Whole Loans (including Residential Whole Loans transferred to consolidated VIEs) Residential whole loans included in the Company’s consolidated balance sheets are primarily comprised of pools of fixed and adjustable rate residential mortgage loans acquired through consolidated trusts in secondary market transactions. The accounting model utilized by the Company is determined at the time each loan package is initially acquired and is generally based on the delinquency status of the majority of the underlying borrowers in the package at acquisition. The accounting model described below for purchased credit impaired loans that are held at carrying value is typically utilized by the Company for purchased credit impaired loans where the underlying borrower has a delinquency status of less than 60 days at the acquisition date. The Company also acquires purchased performing loans that are typically held at carrying value, but the accounting methods for income recognition and determination and measurement of any required loan loss reserves (as discussed below) differ from those used for purchased credit impaired loans held at carrying value. The accounting model described below for residential whole loans held at fair value is typically utilized by the Company for loans where the underlying borrower has a delinquency status of 60 days or more at the acquisition date. The accounting model initially applied is not subsequently changed. The Company’s residential whole loans pledged as collateral against repurchase agreements are included in the consolidated balance sheets with amounts pledged disclosed parenthetically. Purchases and sales of residential whole loans are recorded on the trade date, with amounts recorded reflecting management’s current estimate of assets that will be acquired or disposed at the closing of the transaction. This estimate is subject to revision at the closing of the transaction, pending the outcome of due diligence performed prior to closing. Recorded amounts of residential whole loans for which the closing of the purchase transaction is yet to occur are not eligible to be pledged as collateral against any repurchase agreement financing until the closing of the purchase transaction. (See Notes 4 , 6 , 7 , 14 and 15 ) Residential Whole Loans at Carrying Value Purchased Performing Loans Acquisitions of purchased performing loans to date have been primarily comprised of: (i) loans to finance (or refinance) one-to-four family residential properties that are not considered to meet the definition of a “Qualified Mortgage” in accordance with guidelines adopted by the Consumer Financial Protection Bureau (“Non-QM loans”), (ii) short-term business purpose loans collateralized by residential properties made to non-occupant borrowers who intend to rehabilitate and sell the property for a profit (“Rehabilitation loans” or “Fix and Flip loans”), (iii) loans to finance (or refinance) non-owner occupied one-to four-family residential properties that are rented to one or more tenants (“Single-family rental loans”), and (iv) previously originated loans secured by residential real estate that is generally owner occupied (“Seasoned performing loans”). Purchased performing loans are initially recorded at their purchase price. Interest income on purchased performing loans acquired at par is accrued based on each loan’s current interest bearing balance and current interest rate, net of related servicing costs. Interest income on such loans purchased at a premium/discount to par is recorded each period based on the contractual coupon net of any amortization of premium or accretion of discount, adjusted for actual prepayment activity. For loans acquired with related servicing rights retained by the seller, interest income is reported net of related serving costs. An allowance for loan losses is recorded when, based on current information and events, it is probable that the Company will be unable to collect all amounts due according to the existing contractual terms of the loan agreement. Any required loan loss allowance would typically be measured based on the fair value of the collateral securing the loan and would reduce the carrying value of the loan with a corresponding charge to earnings. Significant judgments are required in determining any allowance for loan loss, including assumptions regarding the loan cash flows expected to be collected, the value of the underlying collateral and the ability of the Company to collect on any other forms of security, such as a personal guaranty provided either by the borrower or an affiliate of the borrower. Income recognition is suspended for loans at the earlier of the date at which payments become 90 days past due or when, in the opinion of management, a full recovery of income and principal becomes doubtful. When the ultimate collectability of the principal of an impaired loan is in doubt, all payments are applied to principal under the cost recovery method. When the ultimate collectability of the principal of an impaired loan is not in doubt, interest income is recorded under the cash basis method as interest payments are received. Interest accruals are resumed when the loan becomes contractually current and performance is demonstrated to be resumed. A loan is written off when it is no longer realizable and/or it is legally discharged. Purchased Credit Impaired Loans The Company has elected to account for these loans as credit impaired as they were acquired at discounted prices that reflect, in part, the impaired credit history of the borrower. Substantially all of these loans have previously experienced payment delinquencies and the amount owed may exceed the value of the property pledged as collateral. Consequently, these loans generally have a higher likelihood of default than newly originated mortgage loans with LTVs of 80% or less to creditworthy borrowers. The Company believes that amounts paid to acquire these loans represent fair market value at the date of acquisition. Loans considered credit impaired are initially recorded at the purchase price with no allowance for loan losses. Subsequent to acquisition, the recorded amount for these loans reflects the original investment amount, plus accretion of interest income, less principal and interest cash flows received. These loans are presented on the Company’s consolidated balance sheets at carrying value, which reflects the recorded amount reduced by any allowance for loan losses established subsequent to acquisition. Under the application of the accounting model for purchased credit impaired loans, the Company may aggregate into pools loans acquired in the same fiscal quarter that are assessed as having similar risk characteristics. For each pool established, or on an individual loan basis for loans not aggregated into pools, the Company estimates at acquisition and periodically on at least a quarterly basis, the principal and interest cash flows expected to be collected. The difference between the cash flows expected to be collected and the carrying amount of the loans is referred to as the “accretable yield.” This amount is accreted as interest income over the life of the loans using an effective interest rate (level yield) methodology. Interest income recorded each period reflects the amount of accretable yield recognized and not the coupon interest payments received on the underlying loans. The difference between contractually required principal and interest payments and the cash flows expected to be collected is referred to as the “non-accretable difference,” and includes estimates of both the effect of prepayments and expected credit losses over the life of the underlying loans. A decrease in expected cash flows in subsequent periods may indicate impairment at the pool and/or individual loan level, thus requiring the establishment of an allowance for loan losses by a charge to the provision for loan losses. The allowance for loan losses generally represents the present value of cash flows expected at acquisition, adjusted for any increases due to changes in estimated cash flows, that are subsequently no longer expected to be received at the relevant measurement date. Under the accounting model applied to purchased credit impaired loans, a significant increase in expected cash flows in subsequent periods first reduces any previously recognized allowance for loan losses and then will result in a recalculation in the amount of accretable yield. The adjustment of accretable yield due to a significant increase in expected cash flows is accounted for prospectively as a change in estimate and results in reclassification from nonaccretable difference to accretable yield. Residential Whole Loans at Fair Value Certain of the Company’s residential whole loans are presented at fair value on its consolidated balance sheets as a result of a fair value election made at the time of acquisition. For the majority of these loans, there is significant uncertainty associated with estimating the timing of and amount of cash flows that will be collected. Further, the cash flows ultimately collected may be dependent on the value of the property securing the loan. Consequently, the Company considers that accounting for these loans at fair value should result in a better reflection over time of the economic returns for the majority of these loans. The Company determines the fair value of its residential whole loans held at fair value after considering portfolio valuations obtained from a third-party who specializes in providing valuations of residential mortgage loans and trading activity observed in the market place. Subsequent changes in fair value are reported in current period earnings and presented in Net gain on residential whole loans measured at fair value through earnings on the Company’s consolidated statements of operations. Cash received representing coupon payments on residential whole loans held at fair value is not included in Interest Income, but rather is included in Net gain on residential whole loans measured at fair value through earnings on the Company’s consolidated statements of operations. Cash outflows associated with loan related advances made by the Company on behalf of the borrower are included in the basis of the loan and are reflected in unrealized gains or losses reported each period. ( d ) MSR-Related Assets The Company has investments in financial instruments whose cash flows are considered to be largely dependent on underlying MSRs that either directly or indirectly act as collateral for the investment. These financial instruments, which are referred to as MSR-related assets are discussed in more detail below. The Company’s MSR-related assets pledged as collateral against repurchase agreements are included in the consolidated balance sheets with the amounts pledged disclosed parenthetically. Purchases and sales of MSR-related assets are recorded on the trade date. (See Notes 3 , 6 , 7 and 14 ) Term Notes Backed by MSR-Related Collateral The Company has invested in term notes that are issued by special purpose vehicles (“SPV”) that have acquired rights to receive cash flows representing the servicing fees and/or excess servicing spread associated with certain MSRs. The Company considers payment of principal and interest on these term notes to be largely dependent on the cash flows generated by the underlying MSRs as this impacts the cash flows available to the SPV that issued the term notes. Credit risk borne by the holders of the term notes is also mitigated by structural credit support in the form of over-collateralization. Credit support is also provided by a corporate guarantee from the ultimate parent or sponsor of the SPV that is intended to provide for payment of interest and principal to the holders of the term notes should cash flows generated by the underlying MSRs be insufficient. The Company’s term notes backed by MSR-related collateral are treated as AFS securities and reported at fair value on the Company’s consolidated balance sheets with unrealized gains and losses excluded from earnings and reported in AOCI. Interest income is recognized on an accrual basis on the Company’s consolidated statements of operations. The Company’s valuation process for such notes considers a number of factors, including a comparable bond analysis performed by a third-party pricing service which involves determining a pricing spread at issuance of the term note. The pricing spread is used at each subsequent valuation date to determine an implied yield to maturity of the term note, which is then used to derive an indicative market value for the security. This indicative market value is further reviewed by the Company and may be adjusted to ensure it reflects a realistic exit price at the valuation date given the structural features of these securities. Other factors taken into consideration include indicative values provided by repurchase agreement counterparties, estimated changes in fair value of the related underlying MSR collateral and the financial performance of the ultimate parent or sponsoring entity of the issuer, which has provided a guarantee that is intended to provide for payment of interest and principal to the holders of the term notes should cash flows generated by the related underlying MSR collateral be insufficient. Corporate Loans The Company has made or participated in loans to provide financing to entities that originate residential mortgage loans and own the related MSRs. These corporate loans are generally secured by certain MSRs, as well as certain other unencumbered assets owned by the borrower. Corporate loans are recorded on the Company’s consolidated balance sheets at the drawn amount, on which interest income is recognized on an accrual basis on the Company’s consolidated statements of operations. Commitment fees received on the undrawn amount are deferred and recognized as interest income over the remaining loan term at the time of draw. At the end of the commitment period, any remaining deferred commitment fees are recorded as Other Income on the Company’s consolidated statements of operations. The Company evaluates the recoverability of its corporate loans on a quarterly basis considering various factors, including the current status of the loan, changes in the fair value of the MSRs that secure the loan and the recent financial performance of the borrower. ( e ) Cash and Cash Equivalents Cash and cash equivalents include cash on deposit with financial institutions and investments in money market funds, all of which have original maturities of three months or less. Cash and cash equivalents may also include cash pledged as collateral to the Company by its repurchase agreement counterparties as a result of reverse margin calls (i.e., margin calls made by the Company). The Company did not hold any cash pledged by its counterparties at December 31, 2018 and 2017 . At December 31, 2018 and 2017 , the Company had cash and cash equivalents of $52.0 million and $449.8 million , respectively. The Company’s investments in overnight money market funds, which are not bank deposits and are not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any other government agency, were $30.0 million and $354.0 million at December 31, 2018 and 2017 , respectively. In addition, deposits in FDIC insured accounts generally exceed insured limits. (See Notes 7 and 14 ) ( f ) Restricted Cash Restricted cash represents the Company’s cash held by its counterparties in connection with certain of the Company’s Swaps and/or repurchase agreements that is not available to the Company for general corporate purposes. Restricted cash may be applied against amounts due to repurchase agreement and/or Swap counterparties, or may be returned to the Company when the related collateral requirements are exceeded or at the maturity of the Swap and/or repurchase agreement. The Company had aggregate restricted cash held as collateral or otherwise in connection with its repurchase agreements and/or Swaps of $36.7 million and $14.0 million at December 31, 2018 and 2017 , respectively. (See Notes 5 ( c ), 6 , 7 and 14 ) ( g ) Goodwill At December 31, 2018 and 2017 , the Company had goodwill of $7.2 million , which represents the unamortized portion of the excess of the fair value of its common stock issued over the fair value of net assets acquired in connection with its formation in 1998. Goodwill ,which is no longer subject to amortization, is tested for impairment at least annually, or more frequently under certain circumstances, at the entity level. Through December 31, 2018 , the Company had not recognized any impairment against its goodwill. Goodwill is included in Other assets on the Company’s consolidated balance sheets. ( h ) Real Estate Owned (“REO”) REO represents real estate acquired by the Company, including through foreclosure, deed in lieu of foreclosure, or purchased in connection with the acquisition of residential whole loans. REO acquired through foreclosure or deed in lieu of foreclosure is initially recorded at fair value less estimated selling costs. REO acquired in connection with the acquisition of residential whole loans is initially recorded at its purchase price. Subsequent to acquisition, REO is reported, at each reporting date, at the lower of the current carrying amount or fair value less estimated selling costs and for presentation purposes is included in Other assets on the Company’s consolidated balance sheets. Changes in fair value that result in an adjustment to the reported amount of an REO property that has a fair value at or below its carrying amount are reported in Other Income, net on the Company’s consolidated statements of operations. (See Note 5 ( b )) ( i ) Depreciation Leasehold Improvements and Other Depreciable Assets Depreciation is computed on the straight-line method over the estimated useful life of the related assets or, in the case of leasehold improvements, over the shorter of the useful life or the lease term. Furniture, fixtures, computers and related hardware have estimated useful lives ranging from five to eight years at the time of purchase. ( j ) Loan Securitization and Other Debt Issuance Costs Loan securitization related costs are costs associated with the issuance of beneficial interests by consolidated VIEs and incurred by the Company in connection with various financing transactions completed by the Company. Other debt issuance and related costs include costs incurred by the Company in connection with issuing 8% Senior Notes due 2042 (“Senior Notes”) and certain other repurchase agreement financings. These costs may include underwriting, rating agency, legal, accounting and other fees. Such costs, which reflect deferred charges, are included on the Company’s consolidated balance sheets as a direct deduction from the corresponding debt liability. These deferred charges are amortized as an adjustment to interest expense using the effective interest method. For Senior Notes and other repurchase agreement financings, such costs are amortized over the shorter of the period to the expected or stated legal maturity of the debt instruments. The Company periodically reviews the recoverability of these deferred costs and in the event an impairment charge is required, such amount will be included in Operating and Other Expense on the Company’s consolidated statements of operations. ( k ) Repurchase Agreements The Company finances the holdings of a significant portion of its residential mortgage assets with repurchase agreements. Under repurchase agreements, the Company sells securities to a lender and agrees to repurchase the same securities in the future for a price that is higher than the original sale price. The difference between the sale price that the Company receives and the repurchase price that the Company pays represents interest paid to the lender. Although legally structured as sale and repurchase transactions, the Company accounts for repurchase agreements as secured borrowings. Under its repurchase agreements, the Company pledges its securities as collateral to secure the borrowing, in an amount which is equal to a specified percentage of the fair value of the pledged collateral, while the Company retains beneficial ownership of the pledged collateral. At the maturity of a repurchase financing, unless the repurchase financing is renewed with the same counterparty, the Company is required to repay the loan including any accrued int

Residential Mortgage Securities

Residential Mortgage Securities and MSR Related Assets	12 Months Ended
	Dec. 31, 2018
Investments, Debt and Equity Securities [Abstract]
Residential Mortgage Securities and MSR-Related Assets	Residential Mortgage Securities and MSR-Related Assets The following tables present certain information about the Company’s residential mortgage securities at December 31, 2018 and 2017 : December 31, 2018 (In Thousands) Principal/ Current Face Purchase Premiums Accretable Purchase Discounts Discount Designated as Credit Reserve and OTTI (1) Amortized Cost (2) Fair Value Gross Unrealized Gains Gross Unrealized Losses Net Unrealized Gain/(Loss) Agency MBS: (3) Fannie Mae $ 1,716,340 $ 65,930 $ (24 ) $ — $ 1,782,246 $ 1,762,032 $ 12,107 $ (32,321 ) $ (20,214 ) Freddie Mac 909,561 36,991 — — 947,588 931,318 907 (17,177 ) (16,270 ) Ginnie Mae 4,729 87 — — 4,816 4,863 47 — 47 Total Agency MBS 2,630,630 103,008 (24 ) — 2,734,650 2,698,213 13,061 (49,498 ) (36,437 ) Non-Agency MBS: Expected to Recover Par ( 4)(5) 1,536,485 40 (21,725 ) — 1,514,800 1,527,700 20,520 (7,620 ) 12,900 Expected to Recover Less than Par (4) 2,002,319 — (133,300 ) (516,116 ) 1,352,903 1,790,599 438,465 (769 ) 437,696 Total Non-Agency MBS (6) 3,538,804 40 (155,025 ) (516,116 ) 2,867,703 3,318,299 458,985 (8,389 ) 450,596 Total MBS 6,169,434 103,048 (155,049 ) (516,116 ) 5,602,353 6,016,512 472,046 (57,887 ) 414,159 CRT securities (7) 476,744 9,321 107 — 486,172 492,821 12,545 (5,896 ) 6,649 Total MBS and CRT securities $ 6,646,178 $ 112,369 $ (154,942 ) $ (516,116 ) $ 6,088,525 $ 6,509,333 $ 484,591 $ (63,783 ) $ 420,808 December 31, 2017 (In Thousands) Principal/ Current Face Purchase Premiums Accretable Purchase Discounts Discount Designated as Credit Reserve and OTTI (1) Amortized Cost (2) Fair Value Gross Unrealized Gains Gross Unrealized Losses Net Unrealized Gain/(Loss) Agency MBS: (3) Fannie Mae $ 2,170,974 $ 82,271 $ (40 ) $ — $ 2,253,205 $ 2,246,600 $ 21,736 $ (28,341 ) $ (6,605 ) Freddie Mac 561,346 21,683 — — 584,920 571,748 1,624 (14,796 ) (13,172 ) Ginnie Mae 6,142 112 — — 6,254 6,333 79 — 79 Total Agency MBS 2,738,462 104,066 (40 ) — 2,844,379 2,824,681 23,439 (43,137 ) (19,698 ) Non-Agency MBS: Expected to Recover Par (4)(5) 1,128,808 50 (22,737 ) — 1,106,121 1,132,205 26,518 (434 ) 26,084 Expected to Recover Less than Par (4) 2,589,935 — (192,588 ) (593,227 ) 1,804,120 2,401,761 597,660 (19 ) 597,641 Total Non-Agency MBS (6) 3,718,743 50 (215,325 ) (593,227 ) 2,910,241 3,533,966 624,178 (453 ) 623,725 Total MBS 6,457,205 104,116 (215,365 ) (593,227 ) 5,754,620 6,358,647 647,617 (43,590 ) 604,027 CRT securities (7) 602,799 8,887 (3,550 ) — 608,136 664,403 56,290 (23 ) 56,267 Total MBS and CRT securities $ 7,060,004 $ 113,003 $ (218,915 ) $ (593,227 ) $ 6,362,756 $ 7,023,050 $ 703,907 $ (43,613 ) $ 660,294 (1) Discount designated as Credit Reserve and amounts related to OTTI are generally not expected to be accreted into interest income. Amounts disclosed at December 31, 2018 reflect Credit Reserve of $503.3 million and OTTI of $12.8 million . Amounts disclosed at December 31, 2017 reflect Credit Reserve of $579.0 million and OTTI of $14.2 million . (2) Includes principal payments receivable of $1.0 million and $1.9 million at December 31, 2018 and 2017 , respectively, which are not included in the Principal/Current Face. (3) Amounts disclosed at December 31, 2018 include Agency MBS with a fair value of $736.5 million for which the fair value option has been elected. Such securities had no unrealized gains and gross unrealized losses of approximately $3.3 million at December 31, 2018 . The Company did not have any Agency MBS for which the fair value option had been elected at December 31, 2017 . (4) Based on management ’ s current estimates of future principal cash flows expected to be received. (5) Includes RPL/NPL MBS, which at December 31, 2018 had a $1.4 billion Principal/Current face, $1.4 billion amortized cost and $1.4 billion fair value. At December 31, 2017 , RPL/NPL MBS had a $922.0 million Principal/Current face, $920.1 million amortized cost and $923.1 million fair value. (6) At December 31, 2018 and 2017 , the Company expected to recover approximately 85% and 84% , respectively, of the then-current face amount of Non-Agency MBS. (7) Amounts disclosed at December 31, 2018 includes CRT securities with a fair value of $477.4 million for which the fair value option has been elected. Such securities had gross unrealized gains of approximately $12.5 million and gross unrealized losses of approximately $5.6 million at December 31, 2018 . Amounts disclosed at December 31, 2017 includes CRT securities with a fair value of $528.9 million for which the fair value option had been elected. Such securities had gross unrealized gains of approximately $40.5 million and gross unrealized losses of approximately $23,000 at December 31, 2017 . Agency and Non-Agency MBS The Company’s MBS are comprised of Agency MBS and Non-Agency MBS which include MBS issued prior to 2008 (“Legacy Non-Agency MBS”). These MBS are secured by: (i) hybrid mortgages (“Hybrids”), which have interest rates that are fixed for a specified period of time and, thereafter, generally adjust annually to an increment over a specified interest rate index; (ii) adjustable-rate mortgages (“ARMs”), which have interest rates that reset annually or more frequently (collectively, “ARM-MBS”); and (iii) 15 and 30 year fixed-rate mortgages for Agency MBS and, for Non-Agency MBS, 30-year and longer-term fixed-rate mortgages. In addition, the Company’s MBS are also comprised of MBS backed by securitized re-performing/non-performing loans (“RPL/NPL MBS”), where the cash flows of the bond may not reflect the contractual cash flows of the underlying collateral. The Company’s RPL/NPL MBS are generally structured with a contractual coupon step-up feature where the coupon increases from 300 - 400 basis points at 36 - 48 months from issuance or sooner. The Company pledges a significant portion of its MBS as collateral against its borrowings under repurchase agreements and Swaps. (See Note 7 ) Agency MBS: Agency MBS are guaranteed as to principal and/or interest by a federally chartered corporation, such as Fannie Mae or Freddie Mac, or an agency of the U.S. Government, such as Ginnie Mae. The payment of principal and/or interest on Ginnie Mae MBS is explicitly backed by the full faith and credit of the U.S. Government. Since the third quarter of 2008, Fannie Mae and Freddie Mac have been under the conservatorship of the Federal Housing Finance Agency, which significantly strengthened the backing for these government-sponsored entities. Non-Agency MBS: The Company’s Non-Agency MBS are primarily secured by pools of residential mortgages, which are not guaranteed by an agency of the U.S. Government or any federally chartered corporation. Credit risk associated with Non-Agency MBS is regularly assessed as new information regarding the underlying collateral becomes available and based on updated estimates of cash flows generated by the underlying collateral. CRT Securities CRT securities are debt obligations issued or sponsored by Fannie Mae and Freddie Mac. The payments of principal and interest on the CRT securities are paid by Fannie Mae or Freddie Mac, as the case may be, on a monthly basis and are dependent on the performance of loans in either a reference pool or an actual pool of loans. As the loans in the underlying pool are paid, the principal balance of the CRT securities is paid. As an investor in a CRT security, the Company may incur a principal loss if the performance of the actual or reference pool loans results in either an actual or calculated loss that exceeds the credit enhancement of the security owned by the Company. The Company assesses the credit risk associated with CRT securities by assessing the current and expected future performance of the associated loan pool. The Company pledges a portion of its CRT securities as collateral against its borrowings under repurchase agreements. (See Note 7 ) Sales of Residential Mortgage Securities During 2018 , the Company sold certain Agency MBS for $122.0 million , realizing losses of $6.8 million . The Company also sold certain CRT securities during 2018 for $299.9 million , realizing gains of $31.4 million . In addition, during 2018 , the Company sold certain Non-Agency MBS for $117.1 million , realizing gains of $36.7 million . During 2017 , the Company sold certain Non-Agency MBS for $104.0 million , realizing gains of $39.9 million . During 2016 , the Company sold certain Non-Agency MBS for $85.6 million realizing gains of $35.8 million . The Company has no continuing involvement with any of the sold MBS. Unrealized Losses on Residential Mortgage Securities The following table presents information about the Company’s residential mortgage securities that were in an unrealized loss position at December 31, 2018 : Unrealized Loss Position For: Less than 12 Months 12 Months or more Total (Dollars in Thousands) Fair Value Unrealized Losses Number of Securities Fair Value Unrealized Losses Number of Securities Fair Value Unrealized Losses Agency MBS: (1) Fannie Mae $ 282,850 $ 1,215 67 $ 919,504 $ 31,106 293 $ 1,202,354 $ 32,321 Freddie Mac 608,458 3,331 15 287,637 13,846 123 896,095 17,177 Total Agency MBS 891,308 4,546 82 1,207,141 44,952 416 2,098,449 49,498 Non-Agency MBS: Expected to Recover Par (2) 1,193,422 6,187 31 91,469 1,433 9 1,284,891 7,620 Expected to Recover Less than Par (2) 54,223 660 11 2,028 109 1 56,251 769 Total Non-Agency MBS 1,247,645 6,847 42 93,497 1,542 10 1,341,142 8,389 Total MBS 2,138,953 11,393 124 1,300,638 46,494 426 3,439,591 57,887 CRT securities (3) 167,195 5,896 41 — — — 167,195 5,896 Total MBS and CRT securities $ 2,306,148 $ 17,289 165 $ 1,300,638 $ 46,494 426 $ 3,606,786 $ 63,783 (1) Amounts disclosed at December 31, 2018 include Agency MBS with a fair value of $736.5 million on which the fair value option has been elected. Such securities had unrealized losses of $3.3 million at December 31, 2018 . (2) Based on management’s current estimates of future principal cash flows expected to be received. (3) Amounts disclosed at December 31, 2018 includes CRT securities with a fair value of $151.8 million for which the fair value option has been elected. Such securities had unrealized losses of $5.6 million at December 31, 2018. At December 31, 2018 , the Company did not intend to sell any of its investments that were in an unrealized loss position, and it is “more likely than not” that the Company will not be required to sell these securities before recovery of their amortized cost basis, which may be at their maturity. Gross unrealized losses on the Company’s Agency MBS were $49.5 million at December 31, 2018 . Agency MBS are issued by Government Sponsored Entities (“GSEs”) and enjoy either the implicit or explicit backing of the full faith and credit of the U.S. Government. While the Company’s Agency MBS are not rated by any rating agency, they are currently perceived by market participants to be of high credit quality, with risk of default limited to the unlikely event that the U.S. Government would not continue to support the GSEs. Given the credit quality inherent in Agency MBS, the Company does not consider any of the current impairments on its Agency MBS to be credit related. In assessing 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 its maturity, the Company considers for each impaired security, 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 December 31, 2018 any unrealized losses on its Agency MBS were temporary. Gross unrealized losses on the Company’s Non-Agency MBS were $8.4 million at December 31, 2018 . 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 are rather a reflection of current market yields and/or marketplace bid-ask spreads. The Company has reviewed its Non-Agency MBS 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 expected cash flows for such securities, which considers recent bond performance and, where possible, expected future performance of the underlying collateral. The Company recognized credit-related OTTI losses through earnings related to its Non-Agency MBS of $1.3 million , $1.0 million , and $485,000 during the years ended December 31, 2018 , 2017 , and 2016 , respectively. Non-Agency MBS on which OTTI is recognized have experienced, or are expected to experience, credit-related adverse cash flow changes. The Company’s estimate of cash flows for these Non-Agency MBS is based on its review of the underlying mortgage loans securing these MBS. The Company considers information available about the structure of the securitization, including structural credit enhancement, if any, and the past and expected future performance of underlying mortgage loans, including timing of expected future cash flows, prepayment rates, default rates, loss severities, delinquency rates, percentage of non-performing loans, year of origination, LTVs, geographic concentrations, and dialogue with market participants. Changes in the Company’s evaluation of each of these factors impacts the cash flows expected to be collected at the OTTI assessment date. For Non-Agency MBS purchased at a discount to par that were assessed for and had no OTTI recorded this period, such cash flow estimates indicated that the amount of expected losses decreased compared to the previous OTTI assessment date. These positive cash flow changes are primarily driven by recent improvements in LTVs due to loan amortization and home price appreciation, which, in turn, positively impacts the Company’s estimates of default rates and loss severities for the underlying collateral. In addition, voluntary prepayments (i.e., loans that prepay in full with no loss) have generally trended higher relative to the Company’s assumptions for these MBS which also positively impacts the Company’s estimate of expected loss. Overall, the combination of higher voluntary prepayments and lower LTVs supports the Company’s assessment that such MBS are not other-than-temporarily impaired. The following table presents the composition of OTTI charges recorded by the Company for the years ended December 31, 2018 , 2017 and 2016 : For the Year Ended December 31, (In Thousands) 2018 2017 2016 Total OTTI losses $ (1,259 ) $ (63 ) $ (1,255 ) OTTI recognized in/(reclassified from) OCI — (969 ) 770 OTTI recognized in earnings $ (1,259 ) $ (1,032 ) $ (485 ) The following table presents a roll-forward of the credit loss component of OTTI on the Company’s Non-Agency MBS for which a non-credit component of OTTI was previously recognized in OCI. Changes in the credit loss component of OTTI are presented based upon whether the current period is the first time OTTI was recorded on a security or a subsequent OTTI charge was recorded. For the Year Ended December 31, (In Thousands) 2018 2017 2016 Credit loss component of OTTI at beginning of period $ 38,337 $ 37,305 $ 36,820 Additions for credit related OTTI not previously recognized 1,259 63 314 Subsequent additional credit related OTTI recorded — 969 171 Credit loss component of OTTI at end of period $ 39,596 $ 38,337 $ 37,305 Purchase Discounts on Non-Agency MBS The following table presents the changes in the components of the Company’s purchase discount on its Non-Agency MBS between purchase discount designated as Credit Reserve and OTTI and accretable purchase discount for the years ended December 31, 2018 and 2017 : For the Year Ended December 31, 2018 2017 (In Thousands) Discount Designated as Credit Reserve and OTTI Accretable Discount (1) Discount Designated as Credit Reserve and OTTI Accretable Discount (1) Balance at beginning of period $ (593,227 ) $ (215,325 ) $ (694,241 ) $ (278,191 ) Impact of RMBS Issuer settlement (2)(3) — (14,822 ) — — Accretion of discount — 70,750 — 77,513 Realized credit losses 42,246 — 49,291 — Purchases (2,512 ) 1,685 (29,810 ) 18,386 Sales 12,987 28,336 31,730 17,802 Net impairment losses recognized in earnings (1,259 ) — (1,032 ) — Transfers/release of credit reserve 25,649 (25,649 ) 50,835 (50,835 ) Balance at end of period $ (516,116 ) $ (155,025 ) $ (593,227 ) $ (215,325 ) (1) Together with coupon interest, accretable purchase discount is recognized as interest income over the life of the security. (2) Includes the impact of approximately $2.7 million of cash proceeds (a one-time payment) received by the Company during the year ended December 31, 2018 in connection with the settlement of litigation related to certain residential mortgage backed securitization trusts that were sponsored by Lehman Brothers Holdings Inc. (3) Includes the impact of approximately $12.1 million of cash proceeds (a one-time payment) received by the Company during the year ended December 31, 2018 in connection with the settlement of litigation related to certain residential mortgage backed securitization trusts that were sponsored by JP Morgan Chase & Co. and affiliated entities. MSR-Related Assets ( a ) Term Notes Backed by MSR-Related Collateral At December 31, 2018 and 2017 , the Company had $538.5 million and $381.8 million , respectively of term notes issued by SPVs that have acquired rights to receive cash flows representing the servicing fees and/or excess servicing spread associated with certain MSRs. Payment of principal and interest on these term notes is considered to be largely dependent on cash flows generated by the underlying MSRs, as this impacts the cash flows available to the SPV that issued the term notes. At December 31, 2018 , these term notes had an amortized cost of $538.5 million , gross unrealized losses of approximately $7,000 , a weighted average yield of 5.32% and a weighted average term to maturity of 4.7 years . At December 31, 2017 , these term notes had an amortized cost of $381.0 million , gross unrealized gains of $804,000 , a weighted average yield of 5.80% and a weighted average term to maturity of 3.4 years . ( b ) Corporate Loans The Company has made or participated in loans to provide financing to entities that originate residential mortgage loans and own the related MSRs. These corporate loans are secured by MSRs, as well as certain other unencumbered assets owned by the borrower. During the year ended December 31, 2018 , the Company participated in a loan where the Company committed to lend $100.0 million of which approximately $73.3 million was drawn at December 31, 2018 . At December 31, 2018 , the coupon paid by the borrower on the drawn amount is 5.88% , the remaining term associated with the loan is 1.7 years and the remaining commitment period on any undrawn amount is 1.7 years . During the remaining commitment period, the Company receives a commitment fee between 0.25% and 1.0% based on the undrawn amount of the loan. In December 2016, the Company entered into a loan agreement under the terms of which it had committed to lend $130.0 million , of which approximately $111.2 million was drawn at December 31, 2017 . This loan was paid in full during 2018, at which time any remaining commitment was extinguished. For the year ended December 31, 2018 , the Company recognized interest income on its corporate loans of $5.0 million including discount accretion and commitment fee income of $1.3 million . In addition, the Company recorded $136,000 of Other Income consisting of deferred commitment fees recognized upon repayment of a corporate loan during the year ended December 31, 2018 . For the year ended December 31, 2017 , the Company recognized interest income on its corporate loans of approximately $7.9 million including discount accretion and commitment fee income of approximately $296,000 . Impact of AFS Securities on AOCI The following table presents the impact of the Company’s AFS securities on its AOCI for the years ended December 31, 2018 , 2017 , and 2016 : For the Year Ended December 31, (In Thousands) 2018 2017 2016 AOCI from AFS securities: Unrealized gain on AFS securities at beginning of period $ 620,648 $ 620,403 $ 585,250 Unrealized loss on Agency MBS, net (17,891 ) (39,158 ) (9,322 ) Unrealized (loss)/gain on Non-Agency MBS, net (131,939 ) 78,337 81,882 Unrealized (loss)/gain on MSR term notes, net (812 ) 805 — Reclassification adjustment for MBS sales included in net income (51,580 ) (38,707 ) (36,922 ) Reclassification adjustment for OTTI included in net income (1,259 ) (1,032 ) (485 ) Change in AOCI from AFS securities (203,481 ) 245 35,153 Balance at end of period $ 417,167 $ 620,648 $ 620,403 Interest Income on Residential Mortgage Securities and MSR-Related Assets The following table presents components of interest income on the Company’s residential mortgage securities and MSR-related assets for the years ended December 31, 2018 , 2017 and 2016 : For the Year Ended December 31, (In Thousands) 2018 2017 2016 Agency MBS Coupon interest $ 88,233 $ 96,678 $ 119,966 Effective yield adjustment (1) (25,930 ) (31,323 ) (36,897 ) Interest income $ 62,303 $ 65,355 $ 83,069 Legacy Non-Agency MBS Coupon interest $ 109,714 $ 127,645 $ 154,057 Effective yield adjustment (2)(3) 69,309 76,005 78,443 Interest income $ 179,023 $ 203,650 $ 232,500 RPL/NPL MBS Coupon interest $ 46,339 $ 65,957 $ 98,213 Effective yield adjustment (1)(4) 1,434 1,505 2,108 Interest income $ 47,773 $ 67,462 $ 100,321 CRT securities Coupon interest $ 30,628 $ 27,706 $ 13,023 Effective yield adjustment (2) 2,748 4,009 1,747 Interest income $ 33,376 $ 31,715 $ 14,770 MSR-related assets Coupon interest $ 27,176 $ 24,534 $ 2,090 Effective yield adjustment (1) 1,244 296 10 Interest income $ 28,420 $ 24,830 $ 2,100 (1) Includes amortization of premium paid net of accretion of purchase discount. For Agency MBS, RPL/NPL MBS and the corporate loan secured by MSRs, interest income is recorded at an effective yield, which reflects net premium amortization/accretion based on actual prepayment activity. (2) The effective yield adjustment is the difference between the net income calculated using the net yield, which is based on management’s estimates of the amount and timing of future cash flows, less the current coupon yield. (3) Includes accretion income recognized due to the impact of redemptions of certain securities that had been previously been purchased at a discount of $2.7 million , $1.7 million and $7,000 during the years ended December 31, 2018 , 2017 and 2016 , respectively. (4) Includes accretion income recognized due to the impact of redemptions of certain securities that had been previously been purchased at a discount of $1.4 million , $1.2 million and $1.6 million during the years ended December 31, 2018 , 2017 and 2016 , respectively.

Residential Whole Loans

Residential Whole Loans	12 Months Ended
	Dec. 31, 2018
Receivables [Abstract]
Residential Whole Loans	Residential Whole Loans Included on the Company’s consolidated balance sheets as of December 31, 2018 and 2017 are approximately $4.7 billion and $2.2 billion , respectively, of residential whole loans arising from the Company’s interests in certain trusts established to acquire the loans and certain entities established in connection with its loan securitization transactions. The Company has assessed that these entities are required to be consolidated for financial reporting purposes. Residential Whole Loans, at Carrying Value The following table presents the components of the Company’s Residential whole loans, at carrying value at December 31, 2018 and 2017 : (Dollars In Thousands) December 31, 2018 December 31, 2017 Purchased performing loans: Non-QM loans $ 1,354,774 $ 55,612 Rehabilitation loans 494,576 56,706 Single-family rental loans 145,327 5,319 Seasoned performing loans 224,051 — Total purchased performing loans 2,218,728 117,637 Purchased credit impaired loans 797,987 790,879 Total Residential whole loans, at carrying value $ 3,016,715 908,516 Number of loans 11,149 4,792 The following table presents components of interest income on the Company’s Residential whole loans, at carrying value for the years ended December 31, 2018 , 2017 and 2016 : For the Year Ended December 31, (In Thousands) 2018 2017 2016 Purchased performing loans: Non-QM loans $ 31,036 $ 84 $ — Rehabilitation loans 15,975 431 — Single-family rental loans 3,315 15 — Seasoned performing loans 5,818 — — Total purchased performing loans 56,144 530 — Purchased credit impaired loans 44,777 35,657 23,916 Residential whole loans, at carrying value $ 100,921 $ 36,187 $ 23,916 The following table presents additional information regarding the Company’s Residential whole loans, at carrying value at December 31, 2018 : December 31, 2018 Carrying Value Unpaid Principal Balance (“UPB”) Weighted Average Coupon (1) Weighted Average Term to Maturity (Months) Weighted Average LTV Ratio (2) Aging by UPB Past Due Days (Dollars In Thousands) Current 30-59 60-89 90+ Purchased performing loans: (3) Non-QM loans $ 1,338,360 $ 1,293,805 6.19 % 361 66 % $ 1,271,410 $ 14,535 $ 4,802 $ 3,058 Rehabilitation loans 494,576 494,576 7.39 9 65 465,033 18,353 6,451 4,739 Single-family rental loans 145,327 144,972 5.92 355 70 143,226 1,225 — 521 Seasoned performing loans 224,051 242,539 4.25 191 47 233,105 6,439 1,618 1,377 Purchased credit impaired loans 797,987 1,002,261 4.38 302 86 N/A N/A N/A N/A Residential whole loans, at carrying value, total or weighted average $ 3,000,301 $ 3,178,153 5.68 % 275 (1) Weighted average is calculated based on the interest bearing principal balance of each loan within the related category. For loans acquired with servicing rights released by the seller, interest rates included in the calculation do not reflect loan servicing fees. For loans acquired with servicing rights retained by the seller, interest rates included in the calculation are net of servicing fees. (2) LTV represents the ratio of the total unpaid principal balance of the loan to the estimated value of the collateral securing the related loan as of the most recent date available, which may be the origination date. For Rehabilitation loans, the LTV presented is the ratio of the maximum unpaid principal balance of the loan, including unfunded commitments, to the estimated “after repaired” value of the collateral securing the related loan, where available. For certain Rehabilitation loans, totaling $79.0 million , an after repaired valuation was not obtained and the loan was underwritten based on an“as is” valuation. The LTV of these loans based on the current unpaid principal balance and the valuation obtained during underwriting, is 67% . Excluded from the calculation of weighted average LTV are certain low value loans secured by vacant lots, for which the LTV ratio is not meaningful. (3) Excluded from the table above are approximately $16.4 million of purchased performing loans held at carrying value for which the closing of the purchase transaction had not occurred as of December 31, 2018 . Purchased Performing Loans As of December 31, 2018 , there were 28 loans held at carrying value, that have been placed on non-accrual status as they are more than 90 days delinquent and had not yet become current with respect to the contractually required payments under the loan. Such loans have an unpaid balance of approximately $9.7 million . These non-accrual loans represent approximately 0.2% of the total outstanding principal balance of all of the Company’s Purchased Performing Loans. Management has assessed the recoverability of these loans and based on estimates of the value of the underlying collateral, no allowance for loan loss reserves has been recorded as of December 31, 2018 . In connection with purchased Rehabilitation loans, the Company has unfunded commitments of $49.8 million . Purchased Credit Impaired Loans As of December 31, 2018 and 2017 , the Company had established an allowance for loan losses of approximately $968,000 and $330,000 , respectively, on its purchased credit impaired loans held at carrying value. For the year ended December 31, 2018 , a provision for loan losses of approximately $638,000 was recorded, and for the years ended December 31, 2017 and 2016 , a net reversal of provisions for loan losses of approximately $660,000 and $175,000 was recorded, which is included in Operating and Other expense on the Company’s consolidated statements of operations. The following table presents the activity in the Company’s allowance for loan losses on its purchased credit impaired loans held at carrying value for the years ended December 31, 2018 , 2017 and 2016 : For the Year Ended December 31, (In Thousands) 2018 2017 2016 Balance at the beginning of period $ 330 $ 990 $ 1,165 Provisions/(reversal of provisions) for loan losses 638 (660 ) (175 ) Balance at the end of period $ 968 $ 330 $ 990 The following table presents information regarding the estimates of the contractually required payments, the cash flows expected to be collected, and the estimated fair value of the purchased credit impaired loans held at carrying value acquired by the Company for the years ended December 31, 2018 and 2017 : For the Year Ended December 31, (In Thousands) 2018 2017 Contractually required principal and interest $ 154,911 $ 534,112 Contractual cash flows not expected to be collected (non-accretable yield) (15,378 ) (129,547 ) Expected cash flows to be collected 139,533 404,565 Interest component of expected cash flows (accretable yield) (41,947 ) (137,378 ) Fair value at the date of acquisition $ 97,586 $ 267,187 The following table presents accretable yield activity for the Company’s purchased credit impaired loans held at carrying value for the years ended December 31, 2018 and 2017 : For the Year Ended December 31, (In Thousands) 2018 2017 Balance at beginning of period $ 421,872 $ 334,379 Additions 41,947 137,378 Accretion (44,777 ) (35,657 ) Liquidations and other (35,156 ) (16,356 ) Reclassifications from non-accretable difference, net 31,443 2,128 Balance at end of period $ 415,329 $ 421,872 Accretable yield for purchased credit impaired residential whole loans is the excess of loan cash flows expected to be collected over the purchase price. The cash flows expected to be collected represent the Company’s estimate of the amount and timing of undiscounted principal and interest cash flows. Additions include accretable yield estimates for purchases made during the period and reclassification to accretable yield from non-accretable yield. Accretable yield is reduced by accretion during the period. The reclassifications between accretable and non-accretable yield and the accretion of interest income are based on changes in estimates regarding loan performance and the value of the underlying real estate securing the loans. In future periods, as the Company updates estimates of cash flows expected to be collected from the loans and the underlying collateral, the accretable yield may change. Therefore, the amount of accretable income recorded during the year ended December 31, 2018 is not necessarily indicative of future results. Residential Whole Loans at Fair Value Certain of the Company’s residential whole loans are presented at fair value on its consolidated balance sheets as a result of a fair value election made at time of acquisition. Subsequent changes in fair value are reported in current period earnings and presented in Net gain on residential whole loans measured at fair value through earnings on the Company’s consolidated statements of operations. The following table presents information regarding the Company’s residential whole loans held at fair value at December 31, 2018 and 2017 : (Dollars in Thousands) December 31, 2018 (1) December 31, 2017 Less than 60 Days Past Due: Outstanding principal balance $ 610,290 $ 488,600 Aggregate fair value $ 561,770 $ 446,616 Weighted Average LTV Ratio (2) 76.18 % 74.98 % Number of loans 2,898 2,323 60 Days to 89 Days Past Due: Outstanding principal balance $ 63,938 $ 45,955 Aggregate fair value $ 54,947 $ 37,927 Weighted Average LTV Ratio (2) 82.86 % 89.25 % Number of loans 285 207 90 Days or More Past Due: Outstanding principal balance $ 970,758 $ 1,027,818 Aggregate fair value $ 854,545 $ 840,572 Weighted Average LTV Ratio (2) 90.24 % 94.50 % Number of loans 3,531 3,984 Total Residential whole loans, at fair value $ 1,471,262 $ 1,325,115 (1) Excluded from the table above are approximately $194.7 million of residential whole loans held at fair value for which the closing of the purchase transaction had not occurred as of December 31, 2018 . (2) LTV represents the ratio of the total unpaid principal balance of the loan, to the estimated value of the collateral securing the related loan. Excluded from the calculation of weighted average LTV are certain low value loans secured by vacant lots, for which the LTV ratio is not meaningful. The following table presents the components of Net gain on residential whole loans measured at fair value through earnings for the years ended December 31, 2018 , 2017 and 2016 : For the Year Ended December 31, (In Thousands) 2018 2017 2016 Coupon payments and other income received (1) $ 70,515 $ 41,399 $ 23,017 Net unrealized gains 36,725 33,617 31,254 Net gain on payoff/liquidation of loans 11,087 4,958 5,413 Net gain on transfers to REO 19,292 10,071 2,921 Total $ 137,619 $ 90,045 $ 62,605 (1) Primarily includes recovery of delinquent interest upon the liquidation of non-performing loans, recurring coupon interest payments received on mortgage loans that are contractually current, and cash payments received from private mortgage insurance on liquidated loans.

Other Assets

Other Assets	12 Months Ended
	Dec. 31, 2018
Other Assets [Abstract]
Other Assets	Other Assets The following table presents the components of the Company’s Other assets at December 31, 2018 and 2017 : (In Thousands) December 31, 2018 December 31, 2017 Securities obtained and pledged as collateral, at fair value $ — $ 504,062 REO 249,413 152,356 MBS and loan related receivables 127,154 54,640 Other interest earning assets 92,022 — Goodwill 7,189 7,189 Other 52,007 23,983 Total Other Assets $ 527,785 $ 742,230 ( a ) Securities Obtained and Pledged as Collateral/Obligation to Return Securities Obtained as Collateral In connection with its financing strategy for Non-Agency MBS, in prior periods the Company obtained securities as collateral under collateralized financing arrangements. Securities obtained as collateral in connection with these transactions are recorded at fair value, with a liability, representing the obligation to return the collateral obtained, recorded in Other liabilities. While beneficial ownership of securities obtained remains with the counterparty, the Company had the right to transfer the collateral obtained or to pledge it as part of a subsequent collateralized financing transaction. During the year ended December 31, 2018, these financing arrangements were unwound and the related securities obtained as collateral were returned to the counterparty. Real Estate Owned During the years ended December 31, 2018 and 2017 , the Company reclassified 1,078 and 698 mortgage loans, respectively to REO at an aggregate estimated fair value less estimated selling costs of $215.0 million and $136.7 million , respectively, at the time of transfer. Such transfers occur when the Company takes possession of the property by foreclosing on the borrower or completes a “deed-in-lieu of foreclosure” transaction. From time to time, the Company also acquires REO in connection with transactions to acquire residential whole loans. At December 31, 2018 , $242.0 million of residential real estate property was held by the Company that was acquired either through a completed foreclosure proceeding or from completion of a deed-in-lieu of foreclosure or similar legal agreement. In addition, formal foreclosure proceedings were in process with respect to $49.0 million of residential whole loans held at carrying value and $720.1 million of residential whole loans held at fair value at December 31, 2018 . During the year ended December 31, 2018 , the Company sold 705 REO properties for consideration of $123.2 million , realizing net gains of approximately $7.7 million . During the year ended December 31, 2017 , the Company sold 517 REO properties for consideration of $78.4 million , realizing net gains of approximately $4.5 million . During the year ended December 31, 2016 , the Company sold 256 REO properties for consideration of $37.9 million , realizing net gains of approximately $3.2 million . These amounts are included in Other Income, net on the Company’s consolidated statements of operations. In addition, following an updated assessment of liquidation amounts expected to be realized that was performed on all REO held at the end of each quarter during the years ended December 31, 2018 and 2017 , an aggregate downward adjustment of approximately $15.9 million and $11.0 million was recorded to reflect certain REO properties at the lower of cost or estimated fair value as of December 31, 2018 and 2017 , respectively. The following table presents the activity in the Company’s REO for the years ended December 31, 2018 and 2017 : For the Year Ended December 31, (Dollars In Thousands) 2018 2017 Balance at beginning of period $ 152,356 $ 80,503 Adjustments to record at lower of cost or fair value (15,929 ) (11,018 ) Transfer from residential whole loans (1) 215,038 136,734 Purchases and capital improvements 13,367 19,801 Disposals (115,419 ) (73,664 ) Balance at end of period $ 249,413 $ 152,356 Number of properties 1,093 709 (1) Includes net gain recorded on transfer of approximately $19.6 million and $10.2 million , respectively, for the years ended December 31, 2018 and 2017 . ( c ) Derivative Instruments The Company’s derivative instruments are currently comprised of Swaps, the majority of which are designated as cash flow hedges against the interest rate risk associated with its borrowings. In addition, in connection with managing risks associated with purchases of longer duration Agency MBS, the Company has also entered into Swaps that are not designated as hedges for accounting purposes. The following table presents the fair value of the Company’s derivative instruments and their balance sheet location at December 31, 2018 and 2017 : December 31, 2018 2017 Derivative Instrument (1) Designation Balance Sheet Location Notional Amount Fair Value Notional Amount Fair Value (In Thousands) Swaps Hedging Other assets $ 1,900,000 $ — $ 750,000 $ — Swaps Hedging Other liabilities $ 722,000 $ — $ 1,800,000 $ — Swaps Non-Hedging Other liabilities $ 595,000 $ — $ — $ — (1) Represents Swaps executed bilaterally with a counterparty in the over-the-counter market but then novated to a central clearing house, whereby the central clearing house becomes the counterparty to both of the original counterparties. Swaps The following table presents the assets pledged as collateral against the Company’s Swap contracts at December 31, 2018 and 2017 : December 31, (In Thousands) 2018 2017 Agency MBS, at fair value $ 2,735 $ 21,756 Restricted cash 30,068 7,084 Total assets pledged against Swaps $ 32,803 $ 28,840 Swaps designated as hedges, or a portion thereof, could become ineffective in the future if the associated repurchase agreements that such derivatives hedge fail to exist or fail to have terms that match those of the derivatives that hedge such borrowings. At December 31, 2018 , all of the Company’s derivatives that were designated in a hedging relationship were deemed effective for hedging purposes. The Company’s Swaps designated as hedging transactions have the effect of modifying the repricing characteristics of the Company’s repurchase agreements and cash flows for such liabilities. To date, no cost has been incurred at the inception of a Swap (except for certain transaction fees related to entering into Swaps cleared though a central clearing house), pursuant to which the Company agrees to pay a fixed rate of interest and receive a variable interest rate, generally based on one -month or three -month London Interbank Offered Rate (“LIBOR”), on the notional amount of the Swap. The Company did not recognize any change in the value of its existing Swaps designated as hedges through earnings as a result of hedge ineffectiveness during any of the three years ended December 31, 2018 . At December 31, 2018 , the Company had Swaps with an aggregate notional amount of $3.2 billion and extended 32 months on average with a maximum term of approximately 120 months . The following table presents information about the Company’s Swaps at December 31, 2018 and 2017 : December 31, 2018 December 31, 2017 Maturity (1) Notional Amount Weighted Average Fixed-Pay Interest Rate Weighted Average Variable Interest Rate (2) Notional Amount Weighted Average Fixed-Pay Interest Rate Weighted Average Variable Interest Rate (2) (Dollars in Thousands) Within 30 days $ — — % — % $ — — % — % Over 30 days to 3 months 100,000 1.71 2.50 — — — Over 3 months to 6 months 100,000 1.71 2.50 50,000 1.45 1.56 Over 6 months to 12 months — — — 500,000 1.50 1.46 Over 12 months to 24 months 1,630,000 2.27 2.50 200,000 1.71 1.54 Over 24 months to 36 months 822,000 2.57 2.64 1,500,000 2.22 1.51 Over 36 months to 48 months — — — 200,000 2.20 1.53 Over 48 months to 60 months 395,000 2.88 2.63 — — — Over 60 months to 72 months — — — 100,000 2.75 1.50 Over 72 months to 84 months — — — — — — Over 84 months 170,000 3.00 2.66 — — — Total Swaps $ 3,217,000 2.42 % 2.56 % $ 2,550,000 2.04 % 1.50 % (1) Each maturity category reflects contractual amortization and/or maturity of notional amounts. (2) Reflects the benchmark variable rate due from the counterparty at the date presented, which rate adjusts monthly or quarterly based on one-month or three-month LIBOR, respectively. The following table presents the net impact of the Company’s derivative hedging instruments on its interest expense and the weighted average interest rate paid and received for such Swaps for the years ended December 31, 2018 , 2017 and 2016 : For the Year Ended December 31, (Dollars in Thousands) 2018 2017 2016 Interest expense attributable to Swaps $ 3,780 $ 24,524 $ 40,898 Weighted average Swap rate paid 2.12 % 1.98 % 1.82 % Weighted average Swap rate received 1.96 % 1.07 % 0.48 % During the year ended December 31, 2018 , the Company recorded net losses on Swaps not designated in hedging relationships of $9.6 million . This amount is included in Other income, net on the Company’s consolidated statements of operations. All of the Company’s Swaps were designated in hedging relationships during the years ended December 31, 2017 and 2016 . Impact of Derivative Hedging Instruments on AOCI The following table presents the impact of the Company’s derivative hedging instruments on its AOCI for the years ended December 31, 2018 , 2017 and 2016 : For the Year Ended December 31, (In Thousands) 2018 2017 2016 AOCI from derivative hedging instruments: Balance at beginning of period $ (11,424 ) $ (46,721 ) $ (69,399 ) Net gain on Swaps 14,545 35,297 22,678 Balance at end of period $ 3,121 $ (11,424 ) $ (46,721 )

Repurchase Agreements and Other

Repurchase Agreements and Other Advances	12 Months Ended
	Dec. 31, 2018
Disclosure of Repurchase Agreements [Abstract]
Repurchase Agreements and Other Advances	Repurchase Agreements The Company’s repurchase agreements are accounted for as secured borrowings and bear interest that is generally LIBOR-based. (See Notes 2 ( k ) and 7 ) At December 31, 2018 , the Company’s borrowings under repurchase agreements had a weighted average remaining term-to-interest rate reset of 31 days and an effective repricing period of 8 months , including the impact of related Swaps. At December 31, 2017 , the Company’s borrowings under repurchase agreements had a weighted average remaining term-to-interest rate reset of 16 days and an effective repricing period of 11 months , including the impact of related Swaps. The following table presents information with respect to the Company’s borrowings under repurchase agreements and associated assets pledged as collateral at December 31, 2018 and 2017 : (Dollars in Thousands) December 31, 2018 December 31, 2017 Repurchase agreement borrowings secured by Agency MBS $ 2,384,357 $ 2,501,340 Fair value of Agency MBS pledged as collateral under repurchase agreements $ 2,572,597 $ 2,705,754 Weighted average haircut on Agency MBS (1) 4.60 % 4.65 % Repurchase agreement borrowings secured by Legacy Non-Agency MBS $ 1,447,585 $ 1,256,033 Fair value of Legacy Non-Agency MBS pledged as collateral under repurchase agreements $ 1,817,650 $ 1,652,983 Weighted average haircut on Legacy Non-Agency MBS (1) 21.38 % 21.87 % Repurchase agreement borrowings secured by RPL/NPL MBS $ 1,084,532 $ 567,140 Fair value of RPL/NPL MBS pledged as collateral under repurchase agreements $ 1,377,250 $ 726,540 Weighted average haircut on RPL/NPL MBS (1) 21.31 % 22.05 % Repurchase agreements secured by U.S. Treasuries $ — $ 470,334 Fair value of U.S. Treasuries pledged as collateral under repurchase agreements $ — $ 472,095 Weighted average haircut on U.S. Treasuries (1) — % 1.47 % Repurchase agreements secured by CRT securities $ 391,586 $ 459,058 Fair value of CRT securities pledged as collateral under repurchase agreements $ 480,315 $ 595,900 Weighted average haircut on CRT securities (1) 20.01 % 22.16 % Repurchase agreements secured by residential whole loans (2) $ 2,020,508 $ 1,043,747 Fair value of residential whole loans pledged as collateral under repurchase agreements (3)(4) $ 2,441,931 $ 1,474,704 Weighted average haircut on residential whole loans (1) 16.55 % 26.10 % Repurchase agreements secured by MSR-related assets $ 474,127 $ 317,255 Fair value of MSR-related assets pledged as collateral under repurchase agreements $ 611,807 $ 482,158 Weighted average haircut on MSR-related assets (1) 21.88 % 33.19 % Repurchase agreements secured by other interest-earning assets $ 76,419 $ — Fair value of other interest-earning assets pledged as collateral under repurchase agreements $ 81,494 $ — Weighted average haircut on other interest-earning assets (1) 21.15 % — % (1) Haircut represents the percentage amount by which the collateral value is contractually required to exceed the loan amount. (2) Excludes $27,000 and $206,000 of unamortized debt issuance costs at December 31, 2018 and 2017 , respectively. (3) At December 31, 2018 includes Non-Agency MBS with an aggregate fair value of $27.0 million obtained in connection with the Company’s loan securitization transactions that are eliminated in consolidation. (4) At December 31, 2018 and 2017 , includes residential whole loans held at carrying value with an aggregate fair value of $1.7 billion and $478.5 million and aggregate amortized cost of $1.6 billion and $448.7 million , respectively and residential whole loans held at fair value with an aggregate fair value and amortized cost of $738.6 million and $996.2 million , respectively. In addition, the Company had cash pledged as collateral in connection with it’s repurchase agreements of $6.7 million and $6.9 million at December 31, 2018 and 2017 , respectively. The following table presents repricing information about the Company’s borrowings under repurchase agreements, which does not reflect the impact of associated derivative hedging instruments, at December 31, 2018 and 2017 : December 31, 2018 December 31, 2017 Time Until Interest Rate Reset Balance Weighted Average Interest Rate Balance Weighted Average Interest Rate (Dollars in Thousands) Within 30 days $ 6,747,166 3.35 % $ 6,161,008 2.39 % Over 30 days to 3 months 368,857 3.10 453,899 2.76 Over 3 months to 12 months 763,091 4.18 — — Total repurchase agreements $ 7,879,114 3.42 % $ 6,614,907 2.42 % Less debt issuance costs 27 206 Total repurchase agreements less debt issuance costs $ 7,879,087 $ 6,614,701 The following table presents contractual maturity information about the Company’s borrowings under repurchase agreements, all of which are accounted for as secured borrowings, at December 31, 2018 and does not reflect the impact of derivative contracts that hedge such repurchase agreements: December 31, 2018 Contractual Maturity Overnight Within 30 Days Over 30 Days to 3 Months Over 3 Months to 12 Months Over 12 months Total (Dollars in Thousands) Agency MBS $ — $ 2,152,612 $ 231,745 $ — $ — $ 2,384,357 Legacy Non-Agency MBS — 1,402,625 44,960 — — 1,447,585 RPL/NPL MBS — 1,081,192 3,340 — — 1,084,532 CRT securities — 385,597 5,989 — — 391,586 Residential whole loans — 911,445 198,665 910,398 — 2,020,508 MSR-related assets — 342,227 131,900 — — 474,127 Other — 5,850 — 70,569 — 76,419 Total (1) $ — $ 6,281,548 $ 616,599 $ 980,967 $ — $ 7,879,114 Weighted Average Interest Rate — % 3.31 % 3.41 % 4.18 % — % 3.42 % (1) Excludes $27,000 of unamortized debt issuance costs at December 31, 2018 . Undrawn Financing Commitment In connection with the financing of MSR-related assets, the Company has obtained a financing commitment of up to $ 75.0 million , of which $55.0 million was utilized and was outstanding as of December 31, 2018 . The Company pays a commitment fee ranging from 0.125% to 0.5% of the undrawn amount, depending on the amount of financing utilized. The Company had repurchase agreement borrowings with 26 and 31 counterparties at December 31, 2018 and 2017 , respectively. The following table presents information with respect to each counterparty under repurchase agreements for which the Company had greater than 5% of stockholders’ equity at risk in the aggregate at December 31, 2018 : December 31, 2018 Counterparty Counterparty Rating (1) Amount at Risk (2) Weighted Average Months to Maturity for Repurchase Agreements Percent of Stockholders’ Equity (Dollars in Thousands) Goldman Sachs (3) BBB+/A3/A $ 319,685 1 9.4 % RBC (4) AA-/Aa2/AA 251,802 1 7.4 Wells Fargo (5) A+/Aa2/AA- 188,901 2 5.5 Barclay's Bank BBB/Aa3/A 174,998 4 5.1 (1) As rated at December 31, 2018 by S&P, Moody’s and Fitch, Inc., respectively. The counterparty rating presented is the lowest published for these entities. (2) The amount at risk reflects the difference between (a) the amount loaned to the Company through repurchase agreements, including interest payable, and (b) the cash and the fair value of the securities pledged by the Company as collateral, including accrued interest receivable on such securities. (3) Includes $190.4 million at risk with Goldman Sachs Bank USA and $129.3 million at risk with Goldman Sachs Lending Partners. (4) Includes $248.4 million at risk with RBC Barbados and $3.4 million at risk with RBC New York. Counterparty ratings are not published for RBC Barbados and RBS Capital Market LLC. (5) Includes $187.6 million at risk with Wells Fargo Bank, NA and $1.3 million at risk with Wells Fargo Securities LLC.

Collateral Positions

Collateral Positions	12 Months Ended
	Dec. 31, 2018
Transfers and Servicing [Abstract]
Collateral Positions	Collateral Positions The Company pledges securities or cash as collateral to its counterparties pursuant to its borrowings under repurchase agreements and for initial margin payments on centrally cleared Swaps. In addition, the Company receives securities or cash as collateral pursuant to financing provided under reverse repurchase agreements. The Company exchanges collateral with its counterparties based on changes in the fair value, notional amount and term of the associated repurchase agreements and Swap contracts, as applicable. In connection with these margining practices, either the Company or its counterparty may be required to pledge cash or securities as collateral. When the Company’s pledged collateral exceeds the required margin, the Company may initiate a reverse margin call, at which time the counterparty may either return the excess collateral, or provide collateral to the Company in the form of cash or equivalent securities. The Company’s assets pledged as collateral are described in Notes 2 ( f ) - Restricted Cash, 5 ( c ) - Derivative Instruments and 6 - Repurchase Agreements. The total fair value of assets pledged as collateral with respect to the Company’s borrowings under repurchase agreements and derivative hedging instruments was $9.4 billion and $8.1 billion at December 31, 2018 and 2017 , respectively. An aggregate of $33.1 million and $19.6 million of accrued interest on those assets had also been pledged as of December 31, 2018 and 2017 , respectively. In addition, at December 31, 2017 , $688.1 million of Legacy Non-Agency MBS were pledged as collateral and $504.1 million of U.S. Treasury securities were held as collateral in connection with contemporaneous repurchase and reverse repurchase agreements entered into with a single counterparty.

Offsetting Assets and Liabiliti

Offsetting Assets and Liabilities	12 Months Ended
	Dec. 31, 2018
Offsetting [Abstract]
Offsetting Assets and Liabilities	Offsetting Assets and Liabilities Certain of the Company’s repurchase agreement and derivative transactions are governed by underlying agreements that generally provide for a right of setoff in the event of default or in the event of a bankruptcy of either party to the transaction. In the Company’s consolidated balance sheets, all balances associated with repurchase agreements are presented on a gross basis. The fair value of financial instruments pledged against the Company’s repurchase agreements was $9.4 billion and $8.1 billion at December 31, 2018 and 2017 , respectively. Beginning in January 2017, variation margin payments on the Company’s cleared Swaps are treated as a legal settlement of the exposure under the Swap contract. Previously such payments were treated as collateral pledged against the exposure under the Swap contract. The effect of this change is to reduce what would have otherwise been reported as fair value of the Swap. The fair value of financial instruments pledged against the Company’s Swaps was $2.7 million and $21.8 million at December 31, 2018 and 2017 , respectively. In addition, cash that has been pledged as collateral against repurchase agreements and Swaps is reported as Restricted cash on the Company’s consolidated balance sheets. (See Notes 2 ( f ), 5 ( c ) and 6 )

Other Liabilities

Other Liabilities	12 Months Ended
	Dec. 31, 2018
Other Liabilities [Abstract]
Other Liabilities	Other Liabilities The following table presents the components of the Company’s Other liabilities at December 31, 2018 and 2017 : (In Thousands) December 31, 2018 December 31, 2017 Securitized debt (1) $ 684,420 $ 363,944 Obligation to return securities held as collateral, at fair value — 504,062 Senior Notes 96,816 96,773 Dividends and dividend equivalents payable 90,198 79,771 Accrued interest payable 16,280 12,263 Payable for unsettled residential whole loans purchases 211,129 — Accrued expenses and other 26,296 21,584 Total Other Liabilities $ 1,125,139 $ 1,078,397 (1) Securitized debt represents third-party liabilities of consolidated VIEs and excludes liabilities of the VIEs acquired by the Company that are eliminated in consolidation. The third-party beneficial interest holders in the VIEs have no recourse to the general credit of the Company. (See Notes 10 and 15 for further discussion.) Senior Notes On April 11, 2012, the Company issued $100.0 million in aggregate principal amount of its Senior Notes in an underwritten public offering. The total net proceeds to the Company from the offering of the Senior Notes were approximately $96.6 million , after deducting offering expenses and the underwriting discount. The Senior Notes bear interest at a fixed rate of 8.00% per year, paid quarterly in arrears on January 15, April 15, July 15 and October 15 of each year and will mature on April 15, 2042. The Senior Notes have an effective interest rate, including the impact of amortization to interest expense of debt issuance costs, of 8.31% . The Company may redeem the Senior Notes, in whole or in part, at any time, at a redemption price equal to 100% of the principal amount redeemed plus accrued and unpaid interest to, but not excluding, the redemption date. The Senior Notes are the Company’s senior unsecured obligations and are subordinate to all of the Company’s secured indebtedness, which includes the Company’s repurchase agreements and other financing arrangements, to the extent of the value of the collateral securing such indebtedness.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies ( a ) Lease Commitments The Company currently pays monthly rent pursuant to two office leases. In November 2018, the Company amended the lease for its corporate headquarters in New York, New York, under the same terms and conditions, to extend the expiration date for the lease by up to one year, through June 30, 2021 . For the year ended December 31, 2018 , the Company recorded an expense of approximately $2.7 million in connection with lease rental for its current corporate headquarters. In addition, as part of this lease agreement, the Company has provided the landlord a $785,000 irrevocable standby letter of credit fully collateralized by cash. The letter of credit may be drawn upon by the landlord in the event that the Company defaults under certain terms of the lease. In addition, the Company has a lease through December 31, 2021 for its off-site back-up facility located in Rockville Centre, New York, which provides for, among other things, lease payments totaling $32,000 , annually. In addition, in November 2018, the Company executed a lease agreement on new office space in New York, New York. The Company plans to relocate its corporate headquarters to this new office space upon the substantial completion of the building. The changes and growth the Company has experienced over the past several years has resulted in an increase in its space requirements in the ten year period since its previous office lease was entered into. Accordingly, the new lease is for approximately 50% more space than the Company’s current corporate headquarters. The lease term specified in the agreement is fifteen years with an option to renew for an additional five years . The Company’s current estimate of annual lease rental expense under the new lease, excluding escalation charges which at this point are unknown, is approximately $4.6 million . The Company currently expects to relocate to the space in the fourth fiscal quarter of 2020, but this timing as well as when it is required to begin making payments and recognize rental and other expenses under new lease, is dependent on when the building is actually available for use. The Company recognized lease expense of $2.7 million , $2.7 million and $2.5 million for the years ended December 31, 2018 , 2017 and 2016 , respectively, which is included in Other general and administrative expense within the consolidated statements of operations. At December 31, 2018 , the contractual minimum rental payments (exclusive of possible rent escalation charges and normal recurring charges for maintenance, insurance and taxes) were as follows: Year Ended December 31, Minimum Rental Payments (1) (In Thousands) 2019 $ 2,553 2020 2,553 2021 1,292 2022 — 2023 — Thereafter — Total $ 6,398 (1) Table excludes amounts related to the lease agreement for new office space discussed above as the Company is not contractually obligated to make rental payments until fourteen months after a temporary certificate of occupancy is delivered to the landlord, which is currently expected to occur on or before October 2020. ( b ) Representations and Warranties in Connection with Loan Securitization Transactions In connection with the loan securitization transactions entered into by the Company the Company has the obligation under certain circumstances to repurchase assets previously transferred to securitization vehicles upon breach of certain representations and warranties. As of December 31, 2018 , the Company had no reserve established for repurchases of loans and was not aware of any material unsettled repurchase claims that would require the establishment of such a reserve. (See Note 15 ) ( c ) Corporate Loan The Company has participated in a loan to provide financing to an entity that originates loans and owns MSRs, as well as certain other unencumbered assets owned by the borrower. Under the terms of the participation agreement, the Company has committed to lend $100.0 million of which approximately $73.3 million was drawn at December 31, 2018 . (See Note 3 ) ( d ) Rehabilitation Loan Commitments At December 31, 2018 , the Company had unfunded commitments of $49.8 million in connection with its purchased Rehabilitation loans. (See Note 4 ) ( e ) Residential Whole Loan Purchase Commitments At December 31, 2018 , the Company has agreed, subject to the completion of due diligence and customary closing conditions, to purchase residential whole loans with an aggregate estimated purchase price of $211.1 million , of which $194.7 million is presented in residential whole loans held at fair value and $16.4 million in other loans held at carrying value with a corresponding liability recorded in Other liabilities and included in Payable for unsettled residential whole loan purchases.

Stockholders' Equity

Stockholders' Equity	12 Months Ended
	Dec. 31, 2018
Stockholders' Equity Note [Abstract]
Stockholders' Equity	Stockholders’ Equity ( a ) Preferred Stock On April 15, 2013, the Company completed the issuance of 8.0 million shares of its 7.50% Series B Cumulative Redeemable Preferred Stock (“Series B Preferred Stock”) with a par value of $0.01 per share, and a liquidation preference of $25.00 per share plus accrued and unpaid dividends, in an underwritten public offering. The Company’s Series B Preferred Stock is entitled to receive a dividend at a rate of 7.50% per year on the $25.00 liquidation preference before the Company’s common stock is paid any dividends and is senior to the Company’s common stock with respect to distributions upon liquidation, dissolution or winding up. Dividends on the Series B Preferred Stock are payable quarterly in arrears on or about March 31, June 30, September 30 and December 31 of each year. The Series B Preferred Stock is redeemable at $25.00 per share plus accrued and unpaid dividends (whether or not authorized or declared) exclusively at the Company’s option. The Series B Preferred Stock generally does not have any voting rights, subject to an exception in the event the Company fails to pay dividends on such stock for six or more quarterly periods (whether or not consecutive). Under such circumstances, the Series B Preferred Stock will be entitled to vote to elect two additional directors to the Company’s Board of Directors (the “Board”), until all unpaid dividends have been paid or declared and set apart for payment. In addition, certain material and adverse changes to the terms of the Series B Preferred Stock cannot be made without the affirmative vote of holders of at least 66 2/3% of the outstanding shares of Series B Preferred Stock. The following table presents cash dividends declared by the Company on its Series B Preferred Stock from January 1, 2016 through December 31, 2018 : Year Declaration Date Record Date Payment Date Dividend Per Share 2018 November 26, 2018 December 7, 2018 December 28, 2018 $0.46875 August 20, 2018 September 7, 2018 September 28, 2018 0.46875 May 17, 2018 June 4, 2018 June 29, 2018 0.46875 February 20, 2018 March 2, 2018 March 30, 2018 0.46875 2017 November 17, 2017 December 1, 2017 December 29, 2017 $0.46875 August 10, 2017 September 1, 2017 September 29, 2017 0.46875 May 16, 2017 June 2, 2017 June 30, 2017 0.46875 February 17, 2017 March 6, 2017 March 31, 2017 0.46875 2016 November 22, 2016 December 6, 2016 December 30, 2016 $0.46875 August 12, 2016 September 2, 2016 September 30, 2016 0.46875 May 18, 2016 June 3, 2016 June 30, 2016 0.46875 February 12, 2016 February 29, 2016 March 31, 2016 0.46875 ( b ) Dividends on Common Stock The following table presents cash dividends declared by the Company on its common stock from January 1, 2016 through December 31, 2018 : Year Declaration Date Record Date Payment Date Dividend Per Share 2018 December 12, 2018 December 28, 2018 January 31, 2019 $0.20 (1) September 13, 2018 October 1, 2018 October 31, 2018 0.20 June 7, 2018 June 29, 2018 July 31, 2018 0.20 March 7, 2018 March 29, 2018 April 30, 2018 0.20 2017 December 13, 2017 December 28, 2017 January 31, 2018 $0.20 September 14, 2017 September 28, 2017 October 31, 2017 0.20 June 12, 2017 June 29, 2017 July 28, 2017 0.20 March 8, 2017 March 29, 2017 April 28, 2017 0.20 2016 December 14, 2016 December 28, 2016 January 31, 2017 $0.20 September 15, 2016 September 28, 2016 October 31, 2016 0.20 June 14, 2016 June 28, 2016 July 29, 2016 0.20 March 11, 2016 March 28, 2016 April 29, 2016 0.20 (1) At December 31, 2018 , the Company had accrued dividends and dividend equivalents payable of $90.2 million related to the common stock dividend declared on December 12, 2018 . In general, the Company’s common stock dividends have been characterized as ordinary income to its stockholders for income tax purposes. However, a portion of the Company’s common stock dividends may, from time to time, be characterized as capital gains or return of capital. For the years ended December 31, 2018 , 2017 and 2016 , the portions of the Company’s common stock dividends that were deemed to be capital gains were $0.1290 , $0.0831 and $0.0361 per share of common stock, respectively. ( c ) Public Offering of Common Stock The table below presents information with respect to shares of the Company’s common stock issued through public offerings during the years ended December 31, 2018 and 2017 . Share Issue Date Shares Issued Gross Proceeds Per Share Gross Proceeds (In Thousands, Except Per Share Amounts) August 7, 2018 50,875 (1 ) $ 7.78 $ 395,807 (1) May 10, 2017 23,000 $ 7.85 $ 180,550 (2) (1) Includes approximately 875,000 shares issued on September 5, 2018 pursuant to the exercise of the underwriters’ option to purchase additional shares. The Company incurred approximately $6.4 million of underwriting discounts and related expenses in connection with this equity offering. (2) The Company incurred approximately $2.3 million of underwriting discounts and related expenses in connection with this equity offering. ( d ) Discount Waiver, Direct Stock Purchase and Dividend Reinvestment Plan (“DRSPP”) On September 16, 2016, the Company filed a shelf registration statement on Form S-3 with the SEC under the Securities Act of 1933, as amended (the “1933 Act”), for the purpose of registering additional common stock for sale through its DRSPP. Pursuant to Rule 462(e) of the 1933 Act, this shelf registration statement became effective automatically upon filing with the SEC and, when combined with the unused portion of the Company’s previous DRSPP shelf registration statements, registered an aggregate of 15 million shares of common stock. The Company’s DRSPP is designed to provide existing stockholders and new investors with a convenient and economical way to purchase shares of common stock through the automatic reinvestment of dividends and/or optional cash investments. At December 31, 2018 , approximately 11.8 million shares of common stock remained available for issuance pursuant to the DRSPP shelf registration statement. During the years ended December 31, 2018 , 2017 and 2016 , the Company issued 379,903 , 2,293,192 and 653,793 shares of common stock through the DRSPP, raising net proceeds of approximately $2.8 million , $18.5 million and $1.2 million , respectively. From the inception of the DRSPP in September 2003 through December 31, 2018 , the Company issued 34,055,880 shares pursuant to the DRSPP, raising net proceeds of $284.2 million . ( e ) Stock Repurchase Program As previously disclosed, in August 2005, the Company’s Board authorized a stock repurchase program (the “Repurchase Program”) to repurchase up to 4.0 million shares of its outstanding common stock. The Board reaffirmed such authorization in May 2010. In December 2013, the Board increased the number of shares authorized under the Repurchase Program to an aggregate of 10.0 million . Such authorization does not have an expiration date and, at present, there is no intention to modify or otherwise rescind such authorization. Subject to applicable securities laws, repurchases of common stock under the Repurchase Program are made at times and in amounts as the Company deems appropriate, (including, in our discretion, through the use of one or more plans adopted under Rule 10b5-1 promulgated under the Securities Exchange Act of 1934, as amended (the “1934 Act”)) using available cash resources. Shares of common stock repurchased by the Company under the Repurchase Program are cancelled and, until reissued by the Company, are deemed to be authorized but unissued shares of the Company’s common stock. The Repurchase Program may be suspended or discontinued by the Company at any time and without prior notice. The Company did not repurchase any shares of its common stock during the three years ended December 31, 2018 . At December 31, 2018 , 6,616,355 shares remained authorized for repurchase under the Repurchase Program. ( f ) Accumulated Other Comprehensive Income/(Loss) The following table presents changes in the balances of each component of the Company’s AOCI for the years ended December 31, 2018 , 2017 and 2016 : For the Year Ended December 31, 2018 2017 2016 (In Thousands) Net Unrealized Gain/(Loss) on AFS Securities Net Gain/(Loss) on Swaps Total AOCI Net Unrealized Gain/(Loss) on AFS Securities Net Total AOCI Net Net Total AOCI Balance at beginning of period $ 620,648 $ (11,424 ) $ 609,224 $ 620,403 $ (46,721 ) $ 573,682 $ 585,250 $ (69,399 ) $ 515,851 OCI before reclassifications (150,642 ) 14,545 (136,097 ) 39,984 35,297 75,281 72,560 22,678 95,238 Amounts reclassified from AOCI (1) (52,839 ) — (52,839 ) (39,739 ) — (39,739 ) (37,407 ) — (37,407 ) Net OCI during period (2) (203,481 ) 14,545 (188,936 ) 245 35,297 35,542 35,153 22,678 57,831 Balance at end of period $ 417,167 $ 3,121 $ 420,288 $ 620,648 $ (11,424 ) $ 609,224 $ 620,403 $ (46,721 ) $ 573,682 (1) See separate table below for details about these reclassifications. (2) For further information regarding changes in OCI, see the Company’s consolidated statements of comprehensive income/(loss). The following table presents information about the significant amounts reclassified out of the Company’s AOCI for the years ended December 31, 2018 , 2017 , and 2016 : For the Year Ended December 31, 2018 2017 2016 Details about AOCI Components Amounts Reclassified from AOCI Affected Line Item in the Statement (In Thousands) AFS Securities: Realized gain on sale of securities $ (51,580 ) $ (38,707 ) $ (36,922 ) Net realized gain on sales of residential mortgage securities OTTI recognized in earnings (1,259 ) (1,032 ) (485 ) Other, net Total AFS Securities $ (52,839 ) $ (39,739 ) $ (37,407 ) Total reclassifications for period $ (52,839 ) $ (39,739 ) $ (37,407 ) On securities for which OTTI had been recognized in prior periods, the Company had $224,000 unrealized losses recorded in AOCI at December 31, 2018 and did no t have any unrealized losses recorded in AOCI at December 31, 2017 .

EPS Calculation

EPS Calculation	12 Months Ended
	Dec. 31, 2018
Earnings Per Share [Abstract]
EPS Calculation	EPS Calculation The following table presents a reconciliation of the earnings and shares used in calculating basic and diluted EPS for the years ended December 31, 2018 , 2017 and 2016 : For the Year Ended December 31, (In Thousands, Except Per Share Amounts) 2018 2017 2016 Numerator: Net income $ 301,801 $ 322,393 $ 312,668 Dividends declared on preferred stock (15,000 ) (15,000 ) (15,000 ) Dividends, dividend equivalents and undistributed earnings allocated to participating securities (1,864 ) (1,708 ) (1,628 ) Net income to common stockholders - basic and diluted $ 284,937 $ 305,685 $ 296,040 Denominator: Weighted average common shares for basic and diluted earnings per share (1) 418,934 388,357 371,122 Basic and diluted earnings per share $ 0.68 $ 0.79 $ 0.80 (1) At December 31, 2018 , the Company had approximately 2.1 million equity instruments outstanding that were not included in the calculation of diluted EPS for the year ended December 31, 2018 , as their inclusion would have been anti-dilutive. These equity instruments reflect RSUs (based on current estimate of expected share settlement amount) with a weighted average grant date fair value of $6.78 . These equity instruments may have a dilutive impact on future EPS.

Equity Compensation, Employment

Equity Compensation, Employment Agreements and Other Benefit Plans	12 Months Ended
	Dec. 31, 2018
Compensation Related Costs [Abstract]
Equity Compensation, Employment Agreements and Other Benefit Plans	Equity Compensation, Employment Agreements and Other Benefit Plans ( a ) Equity Compensation Plan In accordance with the terms of the Company’s Equity Compensation Plan (the “Equity Plan”), which was adopted by the Company’s stockholders on May 21, 2015 (and which amended and restated the Company’s 2010 Equity Compensation Plan), directors, officers and employees of the Company and any of its subsidiaries and other persons expected to provide significant services for the Company and any of its subsidiaries are eligible to receive grants of stock options (“Options”), restricted stock, RSUs, dividend equivalent rights and other stock-based awards under the Equity Plan. Subject to certain exceptions, stock-based awards relating to a maximum of 12.0 million shares of common stock may be granted under the Equity Plan; forfeitures and/or awards that expire unexercised do not count towards this limit. At December 31, 2018 , approximately 5.2 million shares of common stock remained available for grant in connection with stock-based awards under the Equity Plan. A participant may generally not receive stock-based awards in excess of 1.5 million shares of common stock in any one year and no award may be granted to any person who, assuming exercise of all Options and payment of all awards held by such person, would own or be deemed to own more than 9.8% of the outstanding shares of the Company’s common stock. Unless previously terminated by the Board, awards may be granted under the Equity Plan until May 20, 2025. Restricted Stock Units Under the terms of the Equity Plan, RSUs are instruments that provide the holder with the right to receive, subject to the satisfaction of conditions set by the Compensation Committee of the Board (the “Compensation Committee”) at the time of grant, a payment of a specified value, which may be a share of the Company’s common stock, the fair market value of a share of the Company’s common stock, or such fair market value to the extent in excess of an established base value, on the applicable settlement date. Although the Equity Plan permits the Company to issue RSUs that can settle in cash, all of the Company’s outstanding RSUs as of December 31, 2018 are designated to be settled in shares of the Company’s common stock. All RSUs outstanding at December 31, 2018 may be entitled to receive dividend equivalent payments depending on the terms and conditions of the award either in cash at the time dividends are paid by the Company, or for certain performance-based RSU awards, as a grant of stock at the time such awards are settled. At December 31, 2018 and 2017 , the Company had unrecognized compensation expense of $5.2 million and $4.1 million , respectively, related to RSUs. The unrecognized compensation expense at December 31, 2018 is expected to be recognized over a weighted average period of 1.7 years . The following table presents information with respect to the Company’s RSUs during the years ended December 31, 2018 , 2017 and 2016 : For the Year Ended December 31, 2018 RSUs With Service Condition Weighted Average Grant Date Fair Value RSUs With Market and Service Conditions Weighted Average Grant Date Fair Value Total RSUs Total Weighted Average Grant Date Fair Value Outstanding at beginning of year: 1,025,028 $ 7.67 1,021,250 $ 5.80 2,046,278 $ 6.73 Granted (1) 428,802 7.65 415,000 6.91 843,802 7.29 Settled (237,384 ) 8.17 (275,000 ) 5.73 (512,384 ) 6.86 Cancelled/forfeited (10,000 ) 7.23 (10,000 ) 5.64 (20,000 ) 6.44 Outstanding at end of year 1,206,446 $ 7.57 1,151,250 $ 6.21 2,357,696 $ 6.90 RSUs vested but not settled at end of year 708,946 $ 7.47 290,000 $ 4.81 998,946 $ 6.70 RSUs unvested at end of year 497,500 $ 7.71 861,250 $ 6.69 1,358,750 $ 7.06 For the Year Ended December 31, 2017 RSUs With Service Condition Weighted Average Grant Date Fair Value RSUs With Market and Service Conditions Weighted Average Grant Date Fair Value Total RSUs Total Outstanding at beginning of year: 1,194,299 $ 7.38 863,800 $ 5.45 2,058,099 $ 6.57 Granted (2) 447,695 7.96 451,250 6.48 898,945 7.22 Settled (616,966 ) 7.32 (293,800 ) 5.83 (910,766 ) 6.84 Cancelled/forfeited — — — — — — Outstanding at end of year 1,025,028 $ 7.67 1,021,250 $ 5.80 2,046,278 $ 6.73 RSUs vested but not settled at end of year 586,419 $ 7.98 275,000 $ 5.73 861,419 $ 7.26 RSUs unvested at end of year 438,609 $ 7.25 746,250 $ 5.82 1,184,859 $ 6.35 For the Year Ended December 31, 2016 RSUs With Service Condition Weighted Average Grant Date Fair Value RSUs With Market and Service Conditions Weighted Average Grant Date Fair Value Total RSUs Total Outstanding at beginning of year: 1,138,930 $ 7.71 736,800 $ 5.66 1,875,730 $ 6.90 Granted (3) 420,695 6.81 307,500 4.81 728,195 5.96 Settled (360,326 ) 7.75 (175,500 ) 5.21 (535,826 ) 6.92 Cancelled/forfeited (5,000 ) 7.32 (5,000 ) 5.27 (10,000 ) 6.29 Outstanding at end of year 1,194,299 $ 7.38 863,800 $ 5.45 2,058,099 $ 6.57 RSUs vested but not settled at end of year 617,518 $ 7.45 293,800 $ 5.83 911,318 $ 6.93 RSUs unvested at end of year 576,781 $ 7.30 570,000 $ 5.25 1,146,781 $ 6.28 (1) The weighted average grant date fair value of these awards require the Company to estimate certain valuation inputs. In determining the fair value for 692,500 of these awards granted in 2018 , the Company applied: (i) a weighted average volatility estimate of approximately 17% , which was determined considering historic volatility in the price of the Company’s and its peer group companies’ common stock over the three -year period prior to the grant date and the implied volatility of certain exchange-traded options on the Company’s and peer group companies’ common stock at the grant date; and (ii) a weighted average risk-free rate of 2.36% based on the continuously compounded constant maturity treasury rate corresponding to a maturity commensurate with the expected vesting term of the awards. The weighted average grant date fair value for the remaining 151,302 awards with a service condition only was estimated based on the closing price of the Company’s common stock at the grant date of $7.70 . There are no post vesting conditions on these awards. (2) The weighted average grant date fair value of these awards require the Company to estimate certain valuation inputs. In determining the fair value for 758,750 of these awards granted in 2017 , the Company applied: (i) a weighted average volatility estimate of approximately 15% , which was determined considering historic volatility in the price of Company’s and its peer group companies’ common stock over the three -year period prior to the grant date and the implied volatility of certain exchange-traded options on the Company’s and peer group companies’ common stock at the grant date; and (ii) a weighted average risk-free rate of 1.46% based on the continuously compounded constant maturity treasury rate corresponding to a maturity commensurate with the expected vesting term of the awards. The weighted average grant date fair value for the remaining 140,195 awards with a service condition only was estimated based on the closing price of the Company’s common stock at the grant date of $8.31 . There are no post vesting conditions on these awards. (3) The weighted average grant date fair value of these awards require the Company to estimate certain valuation inputs. In determining the fair value for 615,000 of these awards granted in 2016 , the Company applied: (i) a weighted average volatility estimate of approximately 17% , which was determined considering historic volatility in the price of Company’s common stock over the three -year period prior to the grant date and the implied volatility of certain exchange-traded options on the Company’s common stock at the grant date; (ii) a weighted average risk-free rate of 1.20% based on the continuously compounded constant maturity treasury rate corresponding to a maturity commensurate with the expected vesting term of the awards; and (iii) an estimated annual dividend yield of 11% . The weighted average grant date fair value for the remaining 113,195 awards with a service condition only was estimated based on the closing price of the Company’s common stock at the grant date of $7.20 . There are no post vesting conditions on these awards. Restricted Stock At December 31, 2018 and 2017 , the Company did no t have any unvested shares of restricted common stock outstanding. The total fair value of restricted shares vested during the years ended December 31, 2018 , 2017 and 2016 was approximately $3.0 million , $2.0 million and $4.3 million , respectively. The following table presents information with respect to the Company’s restricted stock for the years ended December 31, 2018 , 2017 and 2016 : For the Year Ended December 31, 2018 2017 2016 Shares of Restricted Stock Weighted Average Grant Date Fair Value (1) Shares of Restricted Stock Weighted Average Grant Date Fair Value (1) Shares of Restricted Stock Weighted Average Grant Date Fair Value (1) Outstanding at beginning of year: — $ — 28,968 $ 7.12 110,920 $ 7.41 Granted 450,193 6.74 214,859 8.06 487,216 7.66 Vested (2) (450,193 ) 6.74 (243,827 ) 7.95 (567,851 ) 7.64 Cancelled/forfeited — — — — (1,317 ) 7.12 Outstanding at end of year — $ — — $ — 28,968 $ 7.12 (1) The grant date fair value of restricted stock awards is based on the closing market price of the Company’s common stock at the grant date. (2) All restrictions associated with restricted stock are removed on vesting. Dividend Equivalents A dividend equivalent is a right to receive a distribution equal to the dividend distributions that would be paid on a share of the Company’s common stock. Dividend equivalents may be granted as a separate instrument or may be a right associated with the grant of another award (e.g., an RSU) under the Equity Plan, and they are paid in cash or other consideration at such times and in accordance with such rules, as the Compensation Committee of the Board shall determine in its discretion. Payments made on the Company’s outstanding dividend equivalent rights that have been granted as a separate instrument are charged to Stockholders’ Equity when common stock dividends are declared to the extent that such equivalents are expected to vest. The Company did no t make any payments in respect of such instruments during the years ended December 31, 2018 and 2017 and made payments of approximately $5,000 during the year ended December 31, 2016 . The following table presents information about the Company’s dividend equivalents rights awarded as separate instruments at and for the year ended December 31, 2016 . No such awards were granted during 2018 and 2017: For the Year Ended December 31, 2016 Number of Dividend Equivalent Rights Outstanding at beginning of year: 8,215 Granted — Cancelled, forfeited or expired (8,215 ) Outstanding at end of year — The weighted average grant date fair value of the dividend equivalent rights in the above table is $2.77 . The determination of the weighted average grant date fair value of these awards required the Company to estimate certain valuation inputs. In determining the fair value for these awards granted in 2011, the Company applied: (i) a weighted average volatility estimate of approximately 31% , which was determined considering historic volatility in the price of Company’s common stock over the six -year period prior to the grant date and the implied volatility of certain exchange-traded options on the Company’s common stock at the grant date; (ii) a weighted average risk-free rate of 2.23% based on the continuously compounded constant maturity treasury rate corresponding to a maturity commensurate with the expected vesting term of the awards; and (iii) an estimated annual dividend yield of 13% . Expense Recognized for Equity-Based Compensation Instruments The following table presents the Company’s expenses related to its equity-based compensation instruments for the years ended December 31, 2018 , 2017 and 2016 : For the Year Ended December 31, (In Thousands) 2018 2017 2016 RSUs (1) $ 4,974 $ 6,098 $ 4,792 Restricted shares of common stock 3,033 1,935 4,326 Dividend equivalent rights — — 44 Total $ 8,007 $ 8,033 $ 9,162 (1) Equity-based compensation for the year ended December 31, 2017 includes a one-time expense of approximately $900,000 for the accelerated vesting of certain time-based equity awards arising from the death of the Company’s former Chief Executive Officer. ( b ) Employment Agreements At December 31, 2018 , the Company had employment agreements with four of its officers, with varying terms that provide for, among other things, base salary, bonus and change-in-control payments upon the occurrence of certain triggering events. ( c ) Deferred Compensation Plans The Company administers deferred compensation plans for its senior officers and non-employee directors (collectively, the “Deferred Plans”), pursuant to which participants may elect to defer up to 100% of certain cash compensation. The Deferred Plans are designed to align participants’ interests with those of the Company’s stockholders. Amounts deferred under the Deferred Plans are considered to be converted into “stock units” of the Company. Stock units do not represent stock of the Company, but rather are a liability of the Company that changes in value as would equivalent shares of the Company’s common stock. Deferred compensation liabilities are settled in cash at the termination of the deferral period, based on the value of the stock units at that time. The Deferred Plans are non-qualified plans under the Employee Retirement Income Security Act of 1974 and, as such, are not funded. Prior to the time that the deferred accounts are settled, participants are unsecured creditors of the Company. The Company’s liability for stock units in the Deferred Plans is based on the market price of the Company’s common stock at the measurement date. The following table presents the Company’s expenses related to its Deferred Plans for the years ended December 31, 2018 , 2017 and 2016 : For the Year Ended December 31, (In Thousands) 2018 2017 2016 Non-employee directors $ (165 ) $ 171 $ 231 Total $ (165 ) $ 171 $ 231 The Company distributed cash of $123,700 to the participants of the Deferred Plans during the year ended December 31, 2018 . The Company did no t distribute cash to the participants of the Deferred Plans during the year ended December 31, 2017 . The Company distributed cash of $122,000 to the participants of the Deferred Plans during the year ended December 31, 2016 . The following table presents the aggregate amount of income deferred by participants of the Deferred Plans through December 31, 2018 and 2017 that had not been distributed and the Company’s associated liability for such deferrals at December 31, 2018 and 2017 : December 31, 2018 December 31, 2017 (In Thousands) Undistributed Income Deferred (1) Liability Under Deferred Plans Undistributed Income Deferred (1) Liability Under Deferred Plans Non-employee directors $ 2,263 $ 2,417 $ 1,688 $ 2,056 Total $ 2,263 $ 2,417 $ 1,688 $ 2,056 (1) Represents the cumulative amounts that were deferred by participants through December 31, 2018 and 2017 , which had not been distributed through such respective date. ( d ) Savings Plan The Company sponsors a tax-qualified employee savings plan (the “Savings Plan”) in accordance with Section 401(k) of the Code. Subject to certain restrictions, all of the Company’s employees are eligible to make tax deferred contributions to the Savings Plan subject to limitations under applicable law. Participant’s accounts are self-directed and the Company bears the costs of administering the Savings Plan. The Company matches 100% of the first 3% of eligible compensation deferred by employees and 50% of the next 2% , subject to a maximum as provided by the Code. The Company has elected to operate the Savings Plan under the applicable safe harbor provisions of the Code, whereby among other things, the Company must make contributions for all participating employees and all matches contributed by the Company immediately vest 100% . For the years ended December 31, 2018 , 2017 and 2016 , the Company recognized expenses for matching contributions of $371,000 , $363,000 and $359,000 , respectively.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	12 Months Ended
	Dec. 31, 2018
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	Fair Value of Financial Instruments GAAP requires the categorization of fair value measurements into three broad levels that form a hierarchy. A financial instrument’s categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The three levels of valuation hierarchy are defined as follows: Level 1 — Inputs to the valuation methodology are quoted prices (unadjusted) for identical assets or 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 the fair value measurement. The following describes the valuation methodologies used for the Company’s financial instruments measured at fair value on a recurring basis, as well as the general classification of such instruments pursuant to the valuation hierarchy. Securities Obtained and Pledged as Collateral/Obligation to Return Securities Obtained as Collateral The fair value of U.S. Treasury securities obtained as collateral and the associated obligation to return securities obtained as collateral are based upon prices obtained from a third-party pricing service, which are indicative of market activity. Securities obtained as collateral are classified as Level 1 in the fair value hierarchy. Residential Mortgage Securities The Company determines the fair value of its Agency MBS, based upon prices obtained from third-party pricing services, which are indicative of market activity and repurchase agreement counterparties. For Agency MBS, the valuation methodology of the Company’s third-party pricing services incorporate commonly used market pricing methods, trading activity observed in the marketplace and other data inputs. The methodology also considers the underlying characteristics of each security, which are also observable inputs, including: collateral vintage, coupon, maturity date, loan age, reset date, collateral type, periodic and life cap, geography, and prepayment speeds. Management analyzes pricing data received from third-party pricing services and compares it to other indications of fair value including data received from repurchase agreement counterparties and its own observations of trading activity observed in the marketplace. In determining the fair value of the Company’s Non-Agency MBS and CRT securities, management considers a number of observable market data points, including prices obtained from pricing services and brokers as well as dialogue with market participants. In valuing Non-Agency MBS, the Company understands that pricing services use observable inputs that include, in addition to trading activity observed in the marketplace, loan delinquency data, credit enhancement levels and vintage, which are taken into account to assign pricing factors such as spread and prepayment assumptions. For tranches of Legacy Non-Agency MBS that are cross-collateralized, performance of all collateral groups involved in the tranche are considered. The Company collects and considers current market intelligence on all major markets, including benchmark security evaluations and bid-lists from various sources, when available. The Company’s Legacy Non-Agency MBS, RPL/NPL MBS and CRT securities are valued using various market data points as described above, which management considers directly or indirectly observable parameters. Accordingly, these securities are classified as Level 2 in the fair value hierarchy. Residential Whole Loans, at Fair Value The Company determines the fair value of its residential whole loans held at fair value after considering valuations obtained from a third-party that specializes in providing valuations of residential mortgage loans. The valuation approach applied generally depends on whether the loan is considered performing or non-performing at the date the valuation is performed. For performing loans, estimates of fair value are derived using a discounted cash flow approach, where estimates of cash flows are determined from the scheduled payments, adjusted using forecasted prepayment, default and loss given default rates. For non-performing loans, asset liquidation cash flows are derived based on the estimated time to liquidate the loan, expected costs and home price appreciation. Estimated cash flows for both performing and non-performing loans are discounted at yields considered appropriate to arrive at a reasonable exit price for the asset. Indications of loan value such as actual trades, bids, offers and generic market color may be used in determining the appropriate discount yield. The Company’s residential whole loans held at fair value are classified as Level 3 in the fair value hierarchy. Term Notes Backed by MSR-Related Collateral The Company’s valuation process for term notes backed by MSR-related collateral considers a number of factors, including obtaining market quotes from a third-party pricing service. This indicative market value is further reviewed by the Company and may be adjusted to ensure it reflects a realistic exit price at the valuation date given the structural features of these securities. Other factors taken into consideration include indicative values provided by repurchase agreement counterparties, estimated changes in fair value of the related underlying MSR collateral and, as applicable, the financial performance of the ultimate parent or sponsoring entity of the issuer, which has provided a guarantee that is intended to provide for payment of interest and principal to the holders of the term notes should cash flows generated by the related underlying MSR collateral be insufficient. As this process includes significant unobservable inputs, due to the relative illiquidity of the market, these securities are classified as Level 3 in the fair value hierarchy. Swaps All of the Company’s Swaps are cleared by a central clearing house. Valuations provided by the clearing house are used for purposes of determining the fair value of the Company’s Swaps. Such valuations obtained are tested with internally developed models that apply readily observable market parameters. As the Company’s Swaps are subject to the clearing house’s margin requirements, no credit valuation adjustment was considered necessary in determining the fair value of such instruments. Beginning in January 2017, variation margin payments on the Company’s cleared Swaps are treated as a legal settlement of the exposure under the Swap contract. Previously such payments were treated as collateral pledged against the exposure under the Swap contract. The effect of this change is to reduce what would have otherwise been reported as the fair value of the Swap. Swaps are classified as Level 2 in the fair value hierarchy. Changes to the valuation methodologies used with respect to the Company’s financial instruments are reviewed by management to ensure any such changes result in appropriate exit price valuations. The Company will refine its valuation methodologies as markets and products develop and pricing methodologies evolve. The methods described above may produce fair value estimates that may not be indicative of net realizable value or reflective of future fair values. Furthermore, while the Company believes its valuation methods are appropriate and consistent with those used by market participants, the use of 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. The Company reviews the classification of its financial instruments within the fair value hierarchy on a quarterly basis, and management may conclude that its financial instruments should be reclassified to a different level in the future. The following tables present the Company’s financial instruments carried at fair value on a recurring basis as of December 31, 2018 and 2017 , on the consolidated balance sheets by the valuation hierarchy, as previously described: Fair Value at December 31, 2018 (In Thousands) Level 1 Level 2 Level 3 Total Assets: Agency MBS $ — $ 2,698,213 $ — $ 2,698,213 Non-Agency MBS — 3,318,299 — 3,318,299 CRT securities — 492,821 — 492,821 Residential whole loans, at fair value — — 1,665,978 1,665,978 Term notes backed by MSR-related collateral — — 538,499 538,499 Securities obtained and pledged as collateral — — — — Total assets carried at fair value $ — $ 6,509,333 $ 2,204,477 $ 8,713,810 Liabilities: Obligation to return securities obtained as collateral — — — — Total liabilities carried at fair value $ — $ — $ — $ — Fair Value at December 31, 2017 (In Thousands) Level 1 Level 2 Level 3 Total Assets: Agency MBS $ — $ 2,824,681 $ — $ 2,824,681 Non-Agency MBS, including MBS transferred to consolidated VIEs — 3,533,966 — 3,533,966 CRT securities — 664,403 — 664,403 Residential whole loans, at fair value — — 1,325,115 1,325,115 Term notes backed by MSR-related collateral — — 381,804 381,804 Securities obtained and pledged as collateral 504,062 — — 504,062 Total assets carried at fair value $ 504,062 $ 7,023,050 $ 1,706,919 $ 9,234,031 Liabilities: Obligation to return securities obtained as collateral 504,062 — — 504,062 Total liabilities carried at fair value $ 504,062 $ — $ — $ 504,062 Changes in Level 3 Assets Measured at Fair Value on a Recurring Basis The following table presents additional information for the years ended December 31, 2018 and 2017 about the Company’s Residential whole loans, at fair value, which are classified as Level 3 and measured at fair value on a recurring basis: Residential Whole Loans, at Fair Value For the Year Ended December 31, (In Thousands) 2018 (1) 2017 Balance at beginning of period $ 1,325,115 $ 814,682 Purchases and capitalized advances 500,004 683,735 Changes in fair value recorded in Net gain on residential whole loans measured at fair value through earnings 36,725 33,617 Collection of principal, net of liquidation gains/losses (199,203 ) (87,072 ) Repurchases (1,807 ) (2,716 ) Transfer to REO (189,571 ) (117,131 ) Balance at end of period $ 1,471,263 $ 1,325,115 (1) Excluded from the table above are approximately $194.7 million of residential whole loans held at fair value for which the closing of the purchase transaction had not occurred as of December 31, 2018 . The following table presents additional information for the years ended December 31, 2018 and 2017 about the Company’s investments in term notes backed by MSR-related collateral held at fair value, which are classified as Level 3 and measured at fair value on a recurring basis: Term Notes Backed by MSR-Related Collateral Year Ended December 31, (In Thousands) 2018 2017 (1) Balance at beginning of period $ 381,804 $ — Purchases 548,404 381,000 Collection of principal (390,898 ) (140,980 ) Changes in unrealized gain/losses (811 ) 804 Transfers from Level 2 to Level 3 (1) — 140,980 Balance at end of period $ 538,499 381,804 (1) Investments in term notes backed by MSR-related collateral were transferred from Level 2 to Level 3 during the year ended December 31, 2017 as there had been very limited secondary market trading in these securities since issuance. Transfers between levels are deemed to take place on the first day of the reporting period in which the transfer has taken place. The Company did not transfer any assets or liabilities from one level to another during the year ended December 31, 2018 . Fair Value Methodology for Level 3 Financial Instruments Residential Whole Loans, at Fair Value The following tables present a summary of quantitative information about the significant unobservable inputs used in the fair value measurement of the Company’s residential whole loans held at fair value for which it has utilized Level 3 inputs to determine fair value as of December 31, 2018 and 2017 : December 31, 2018 (Dollars in Thousands) Fair Value (1) Valuation Technique Unobservable Input Weighted Average (2) Range Residential whole loans, at fair value $ 700,250 Discounted cash flow Discount rate 5.2 % 4.5-8.0% Prepayment rate 4.8 % 0.9-15.9% Default rate 4.1 % 0.0-24.1% Loss severity 12.9 % 0.0-100.0% $ 683,252 Liquidation model Discount rate 8.0 % 6.1-50.0% Annual change in home prices 3.5 % (0.5)-12.2% Liquidation timeline (in years) 1.8 0.1-4.5 Current value of underlying properties (3) $ 802 $2-$7,950 Total $ 1,383,502 December 31, 2017 (Dollars in Thousands) Fair Value (1) Valuation Technique Unobservable Input Weighted Average (2) Range Residential whole loans, at fair value $ 358,871 Discounted cash flow Discount rate 5.5 % 4.5-13.0% Prepayment rate 4.1 % 1.15-15.1% Default rate 2.9 % 0.0-6.5% Loss severity 13.8 % 0.0-100.0% $ 592,940 Liquidation model Discount rate 8.0 % 6.1-50.0% Annual change in home prices 2.5 % (8.0)-8.8% Liquidation timeline (in years) 1.6 0.1-4.5 Current value of underlying properties (3) $ 772 $0-$9,900 Total $ 951,811 (1) Excludes approximately $282.5 million and $373.3 million of loans for which management considers the purchase price continues to reflect the fair value of such loans at December 31, 2018 and 2017 , respectively. (2) Amounts are weighted based on the fair value of the underlying loan. (3) The simple average value of the properties underlying residential whole loans held at fair value valued via a liquidation model was approximately $400,000 and $336,000 as of December 31, 2018 and 2017 , respectively. The following table presents the carrying values and estimated fair values of the Company’s financial instruments at December 31, 2018 and 2017 : December 31, 2018 December 31, 2017 (In Thousands) Carrying Value Estimated Fair Value Carrying Value Estimated Fair Value Financial Assets: Agency MBS $ 2,698,213 $ 2,698,213 $ 2,824,681 $ 2,824,681 Non-Agency MBS 3,318,299 3,318,299 3,533,966 3,533,966 CRT securities 492,821 492,821 664,403 664,403 Residential whole loans, at carrying value 3,016,715 3,104,401 908,516 988,688 Residential whole loans, at fair value 1,665,978 1,665,978 1,325,115 1,325,115 MSR-related assets 611,807 611,807 492,080 493,026 Securities obtained and pledged as collateral — — 504,062 504,062 Cash and cash equivalents 51,965 51,965 449,757 449,757 Restricted cash 36,744 36,744 13,986 13,986 Financial Liabilities (1) : Repurchase agreements 7,879,087 7,896,672 6,614,701 6,623,255 Securitized debt 684,420 680,209 363,944 366,109 Obligation to return securities obtained as collateral — — 504,062 504,062 Senior Notes 96,816 99,951 96,773 103,729 (1) Carrying value of securitized debt, Senior Notes and certain repurchase agreements is net of associated debt issuance costs. In addition to the methodologies used to determine the fair value of the Company’s financial assets and liabilities reported at fair value on a recurring basis discussed on pages 133 - 137 , the following methods and assumptions were used by the Company in arriving at the fair value of the Company’s other financial instruments presented in the above table that are not reported at fair value on a recurring basis: Residential Whole Loans at Carrying Value: The Company generally determines the fair value of its residential whole loans held at carrying value using the same approach applied for residential whole loans held at fair value. Given the short duration of the Company’s Rehabilitation loans, these investments are determined to have a carrying value which approximates fair value. The Company’s residential whole loans held at carrying value are classified as Level 3 in the fair value hierarchy. Cash and Cash Equivalents and Restricted Cash: Cash and cash equivalents and restricted cash are comprised of cash held in overnight money market investments and demand deposit accounts. At December 31, 2018 and 2017 , the Company’s money market funds were invested in securities issued by the U.S. Government or its agencies, instrumentalities, and sponsored entities, and repurchase agreements involving the securities described above. Given the overnight term and assessed credit risk, the Company’s investments in money market funds are determined to have a fair value equal to their carrying value and are classified as Level 1 in the fair value hierarchy. Corporate Loans: The Company determines the fair value of its Corporate loans, included in MSR-related assets along with the term notes, after considering recent past and expected future loan performance, recent financial performance of the borrower and estimates of the current value of the underlying collateral, which includes certain MSRs and other assets of the borrower that are pledged to secure the borrowing. The Company’s investment in Corporate loans are classified as Level 3 in the fair value hierarchy. Repurchase Agreements: The fair value of repurchase agreements reflects the present value of the contractual cash flows discounted at market interest rates at the valuation date for repurchase agreements with a term equivalent to the remaining term to interest rate repricing, which may be at maturity. Such interest rates are estimated based on LIBOR rates observed in the market. The Company’s repurchase agreements are classified as Level 2 in the fair value hierarchy. Securitized Debt: In determining the fair value of securitized debt, management considers a number of observable market data points, including prices obtained from pricing services and brokers as well as dialogue with market participants. Accordingly, the Company’s securitized debt is classified as Level 2 in the fair value hierarchy. Senior Notes: The fair value of the Senior Notes is determined using the end of day market price quoted on the NYSE at the reporting date. The Company’s Senior Notes are classified as Level 1 in the fair value hierarchy. The Company holds REO at the lower of the current carrying amount or fair value less estimated selling costs. At December 31, 2018 and 2017 , the Company’s REO had an aggregate carrying value of $249.4 million and $152.4 million , and an aggregate estimated fair value of $273.4 million and $175.8 million , respectively. The Company classifies fair value measurements of REO as Level 3 in the fair value hierarchy.

Use of Special Purpose Entities

Use of Special Purpose Entities and Variable Interest Entities	12 Months Ended
	Dec. 31, 2018
Use of Special Purpose Entities and Variable Interest Entities
Use of Special Purpose Entities and Variable Interest Entities	Use of Special Purpose Entities and Variable Interest Entities A Special Purpose Entity (“SPE”) is an entity designed to fulfill a specific limited need of the company that organized it. SPEs are often used to facilitate transactions that involve securitizing financial assets or resecuritizing previously securitized financial assets. The objective of such transactions may include obtaining non-recourse financing, obtaining liquidity or refinancing the underlying financial assets on improved terms. Securitization involves transferring assets to a SPE to convert all or a portion of those assets into cash before they would have been realized in the normal course of business, through the SPE’s issuance of debt or equity instruments. Investors in an SPE usually have recourse only to the assets in the SPE and, depending on the overall structure of the transaction, may benefit from various forms of credit enhancement such as over-collateralization in the form of excess assets in the SPE, priority with respect to receipt of cash flows relative to holders of other debt or equity instruments issued by the SPE, or a line of credit or other form of liquidity agreement that is designed with the objective of ensuring that investors receive principal and/or interest cash flow on the investment in accordance with the terms of their investment agreement. The Company has entered into several financing transactions that resulted in the Company consolidating as VIEs the SPEs that were created to facilitate these transactions. See Note 2 ( r ) for a discussion of the accounting policies applied to the consolidation of VIEs and transfers of financial assets in connection with financing transactions. The Company has engaged in loan securitizations and, in prior years, MBS resecuritization transactions primarily for the purpose of obtaining improved overall financing terms as well as non-recourse financing on a portion of its residential whole loan and Non-Agency MBS portfolios. Notwithstanding the Company’s participation in these transactions, the risks facing the Company are largely unchanged as the Company remains economically exposed to the first loss position on the underlying assets transferred to the VIEs. Loan Securitization Transactions During the year ended December 31, 2018 , the Company completed two loan securitization transactions. As part of these transactions, the Company sold residential whole loans with an aggregate unpaid principal balance of $666.8 million to two entities which it consolidates as VIEs. In connection with these transactions, third-party investors purchased $420.0 million face amount of senior bonds (“Senior Bonds”) with a weighted average coupon rate of 4.04% . As a result of these transactions, the Company acquired $148.1 million face amount of non-rated certificates issued by the securitization vehicles, and received $420.0 million in cash, excluding expenses, accrued interest, and underwriting fees. The following table summarizes the key details of the Company’s loan securitization transactions as of December 31, 2018 and 2017 : (Dollars in Thousands) December 2018 December 2017 Aggregate unpaid principal balance of residential whole loans sold $ 1,290,029 $ 620,924 Face amount of Senior Bonds issued by the VIE and purchased by third-party investors $ 802,817 $ 382,847 Outstanding amount of Senior Bonds $ 684,420 (1) $ 363,944 (1) Weighted average fixed rate for Senior Bonds issued 3.66 % (2) 3.14 % (2) Weighted average contractual maturity of Senior Bonds 31 years (2) 32 years (2) Face amount of Senior Support Certificates received by the Company (3) $ 275,174 $ 127,001 Cash received $ 802,815 $ 382,845 (1) Net of $3.8 million and $2.3 million of deferred financing costs at December 31, 2018 and 2017 , respectively. (2) At December 31, 2018 and 2017 , $582.8 million and $233.7 million , respectively, of Senior Bonds sold in securitization transactions contained a contractual coupon step-up feature whereby the coupon increases by 300 basis points at 36 months from issuance if the bond is not redeemed before such date. (3) Provides credit support to the Senior Bonds sold to third-party investors in the securitization transactions. As of December 31, 2018 and 2017 , as a result of the transactions described above, securitized loans with a carrying value of approximately $209.4 million and $183.2 million are included in “Residential whole loans, at carrying value,” securitized loans with a fair value of approximately $694.7 million and $289.3 million are included in “Residential whole loans, at fair value,” and REO with a carrying value of approximately $79.0 million and $5.5 million are included in “Other assets” on the Company’s consolidated balance sheets. As of December 31, 2018 and 2017, the aggregate carrying value of Senior Bonds issued by consolidated VIEs was $684.4 million and $363.9 million , respectively. These Senior Bonds are disclosed as “Securitized debt” and are included in Other liabilities on the Company’s consolidated balance sheets. The holders of the securitized debt have no recourse to the general credit of the Company, but the Company does have the obligation, under certain circumstances to repurchase assets from the VIE upon the breach of certain representations and warranties with respect to the residential whole loans sold to the VIE. In the absence of such a breach, the Company has no obligation to provide any other explicit or implicit support to any VIE. The Company concluded that the entities created to facilitate the loan securitization transactions are VIEs. The Company then completed an analysis of whether each VIE created to facilitate the securitization transactions should be consolidated by the Company, based on consideration of its involvement in each VIE, including the design and purpose of the SPE, and whether its involvement reflected a controlling financial interest that resulted in the Company being deemed the primary beneficiary of each VIE. In determining whether the Company would be considered the primary beneficiary, the following factors were assessed: • whether the Company has both the power to direct the activities that most significantly impact the economic performance of the VIE; and • whether the Company has a right to receive benefits or absorb losses of the entity that could be potentially significant to the VIE. Based on its evaluation of the factors discussed above, including its involvement in the purpose and design of the entity, the Company determined that it was required to consolidate each VIE created to facilitate the loan securitization transactions. Residential Whole Loans and REO (including Residential Whole Loans and REO transferred to consolidated VIEs) Included on the Company’s consolidated balance sheets as of December 31, 2018 and 2017 are a total of $4.7 billion and $2.2 billion of residential whole loans, of which approximately $3.0 billion and $908.5 million are reported at carrying value and $1.7 billion and $1.3 billion are reported at fair value, respectively. In addition, at December 31, 2018 and 2017 , the Company had REO with an aggregate carrying value of $249.4 million and $152.4 million , and an aggregate estimated fair value $273.4 million and $175.8 million , respectively. These assets are directly owned by certain trusts established by the Company to acquire the loans and entities established in connection with the Company’s loan securitization transactions. The Company has assessed that these entities are required to be consolidated. (See Notes 4 and 5 ( b ))

Summary of Quarterly Results of

Summary of Quarterly Results of Operations (Unaudited)	12 Months Ended
	Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract]
Summary of Quarterly Results of Operations (Unaudited)	Summary of Quarterly Results of Operations (Unaudited) 2018 Quarter Ended (In Thousands, Except per Share Amounts) March 31 June 30 September 30 December 31 Interest income $ 103,752 $ 101,747 $ 117,432 $ 132,744 Interest expense (50,554 ) (51,810 ) (58,878 ) (70,944 ) Net interest income 53,198 49,937 58,554 61,800 Net gain on residential whole loans measured at fair value through earnings 38,498 32,443 34,942 31,736 Net realized gain on sales of residential mortgage securities 8,817 7,429 16,415 28,646 Other income 345 1,134 (2,998 ) (39,432 ) Operating and other expense (17,463 ) (20,548 ) (19,781 ) (21,871 ) Net income 83,395 70,395 87,132 60,879 Preferred stock dividends (3,750 ) (3,750 ) (3,750 ) (3,750 ) Net income available to common stock and participating securities $ 79,645 $ 66,645 $ 83,382 $ 57,129 Earnings per Common Share - Basic and Diluted $ 0.20 $ 0.17 $ 0.19 $ 0.13 2017 Quarter Ended (In Thousands, Except per Share Amounts) March 31 June 30 September 30 December 31 Interest income $ 117,257 $ 110,157 $ 105,133 $ 100,901 Interest expense (50,349 ) (49,022 ) (49,275 ) (48,495 ) Net interest income 66,908 61,135 55,858 52,406 Net gain on residential whole loans measured at fair value through earnings 13,773 16,208 18,679 41,385 Net realized gain on sales of residential mortgage securities 9,708 5,889 14,933 9,047 Other income 4,098 14,229 (4,515 ) 14,553 Operating and other expense (16,427 ) (17,526 ) (21,150 ) (16,798 ) Net income 78,060 79,935 63,805 100,593 Preferred stock dividends (3,750 ) (3,750 ) (3,750 ) (3,750 ) Net income available to common stock and participating securities $ 74,310 $ 76,185 $ 60,055 $ 96,843 Earnings per Common Share - Basic and Diluted $ 0.20 $ 0.20 $ 0.15 $ 0.24

Schedule IV - Mortgage Loans on

Schedule IV - Mortgage Loans on Real Estate	12 Months Ended
	Dec. 31, 2018
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Abstract]
Schedule IV - Mortgage Loans on Real Estate	Mortgage Loans on Real Estate December 31, 2018 Asset Type Number Interest Rate Maturity Date Range Balance Sheet Reported Amount Principal Amount of Loans Subject to Delinquent Principal or Interest (Dollars in Thousands) Residential Whole Loans, at Carrying Value (1) Original loan balance $0 - $149,999 3,360 0.00% - 13.08% 9/1/2016-8/25/2058 $ 272,407 $ 16,726 Original loan balance $150,000 - $299,999 3,781 0.00% - 11.00% 8/1/2018-11/1/2064 679,899 42,262 Original loan balance $300,000 - $449,999 2,205 1.30% - 11.13% 10/1/2018-5/1/2062 704,255 39,720 Original loan balance greater than $449,999 1,766 1.30% - 9.50% 6/19/2018-1/1/2059 1,343,740 23,946 11,112 $ 3,000,301 $ 122,654 Residential Whole Loans, at Fair Value (1) Original loan balance $0 - $149,999 2,172 0.00% - 14.99% 6/1/2009-11/25/2058 $ 165,419 $ 92,672 Original loan balance $150,000 - $299,999 2,280 1.00% - 12.38% 7/1/2009-10/1/2058 392,509 243,609 Original loan balance $300,000 - $449,999 1,515 0.00% - 10.80% 1/1/2015-11/1/2058 461,389 304,731 Original loan balance greater than $449,999 747 1.63% - 10.20% 9/1/2013-7/1/2058 451,945 329,746 6,714 $ 1,471,262 $ 970,758 17,826 $ 4,471,563 (2 ) $ 1,093,412 (1) Excluded from the table above are approximately $16.4 million of purchased performing loans held at carrying value and $194.7 million of residential whole loans held at fair value for which the closing of the purchase transaction had not occurred as of December 31, 2018 . (2) The federal income tax basis is approximately $4.3 billion . Reconciliation of Balance Sheet Reported Amounts of Mortgage Loans on Real Estate The following table summarizes the changes in the carrying amounts of residential whole loans during the year ended December 31, 2018 : For the Year Ended December 31, 2018 (In Thousands) Residential Whole Loans, at Carrying Value Residential Whole Loans, at Fair Value Beginning Balance $ 908,516 $ 1,325,115 Additions during period: Purchases and capitalized advances 2,467,398 741,113 Discount accretion 4,741 N/A Deductions during period: Cash collections for principal and liquidations (355,413 ) (199,203 ) Changes in fair value recorded in Net gain on residential whole loans measured at fair value through earnings N/A 36,725 Provision for loan loss (638 ) N/A Repurchases (1,597 ) (1,807 ) Transfer to REO (6,292 ) (189,571 ) Ending Balance $ 3,016,715 $ 1,712,372

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2018
Accounting Policies [Abstract]
Basis of Presentation and Consolidation	Basis of Presentation and Consolidation The accompanying consolidated financial statements of the Company have been prepared on the accrual basis of accounting in accordance with U.S. generally accepted accounting principles (“GAAP”). 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 differ from those estimates, which could materially impact the Company’s results of operations and its financial condition. Management has made significant estimates in several areas, including other-than-temporary impairment (“OTTI”) on mortgage-backed securities (“MBS”) (See Note 3 ), valuation of MBS, CRT securities and MSR- related assets (See Notes 3 and 14 ), income recognition and valuation of residential whole loans (See Notes 4 and 14 ), valuation of derivative instruments (See Notes 5 ( c ) and 14 ) and income recognition on certain Non-Agency MBS (defined below) purchased at a discount. (See Note 3 ) In addition, estimates are used in the determination of taxable income used in the assessment of REIT compliance and contingent liabilities for related taxes, penalties and interest. (See Note 2 ( o )) Actual results could differ from those estimates. The Company has one reportable segment as it manages its business and analyzes and reports its results of operations on the basis of one operating segment; investing, on a leveraged basis, in residential mortgage assets. The consolidated financial statements of the Company include the accounts of all subsidiaries; all intercompany accounts and transactions have been eliminated. In addition, the Company consolidates entities established to facilitate transactions related to the acquisition and securitization of residential whole loans as well as MBS resecuritization transactions completed in prior years. Certain prior period amounts have been reclassified to conform to the current period presentation.
Residential Mortgage Securities	Residential Mortgage Securities The Company has investments in residential MBS that are issued or guaranteed as to principal and/or interest by a federally chartered corporation, such as the Federal National Mortgage Association (“Fannie Mae”) or the Federal Home Loan Mortgage Corporation (“Freddie Mac”), or an agency of the U.S. Government, such as the Government National Mortgage Association (“Ginnie Mae”) (collectively, “Agency MBS”), and residential MBS that are not guaranteed by any agency of the U.S. Government or any federally chartered corporation (“Non-Agency MBS”). In addition, the Company has investments in CRT securities that are issued or sponsored by Fannie Mae and Freddie Mac. The coupon payments on CRT securities are paid by Fannie Mae and Freddie Mac and the principal payments received are dependent on the performance of loans in either a reference pool or an actual pool of loans. As the loans in the underlying pool are paid, the principal balance of the CRT securities is paid. As an investor in a CRT security, the Company may incur a principal loss if the performance of the actual or reference pool loans results in either an actual or calculated loss that exceeds the credit enhancement of the security owned by the Company. Designation MBS that the Company generally intends to hold until maturity, but that it may sell from time to time as part of the overall management of its business, are designated as “available-for-sale” (“AFS”). Such MBS are carried at their fair value with unrealized gains and losses excluded from earnings (except when an OTTI is recognized, as discussed below) and reported in Accumulated other comprehensive income/(loss) (“AOCI”), a component of Stockholders’ Equity. Upon the sale of an AFS security, any unrealized gain or loss is reclassified out of AOCI to earnings as a realized gain or loss using the specific identification method. The Company has elected the fair value option for certain of its Agency MBS that it does not intend to hold to maturity. These securities are carried at their fair value with changes in fair value included in earnings for the period and reported in Other Income, net on the Company’s consolidated statements of operations. The Company has elected the fair value option for certain of its CRT securities as it considers this method of accounting to more appropriately reflect the risk sharing structure of these securities. Such securities are carried at their fair value with changes in fair value included in earnings for the period and reported in Other Income, net on the Company’s consolidated statements of operations. Revenue Recognition, Premium Amortization and Discount Accretion Interest income on securities is accrued based on the outstanding principal balance and their contractual terms. Premiums and discounts associated with Agency MBS and Non-Agency MBS assessed as high credit quality at the time of purchase are amortized into interest income over the life of such securities using the effective yield method. Adjustments to premium amortization are made for actual prepayment activity. Interest income on the Non-Agency MBS that were purchased at a discount to par value and/or are considered to be of less than high credit quality is recognized based on the security’s effective interest rate which is the security’s internal rate of return (“IRR”). The IRR is determined using management’s estimate of the projected cash flows for each security, which are based on the Company’s observation of current information and events and include assumptions related to fluctuations in interest rates, prepayment speeds and the timing and amount of credit losses. On at least a quarterly basis, the Company reviews and, if appropriate, makes adjustments to its cash flow projections based on input and analysis received from external sources, internal models, and its judgment about interest rates, prepayment rates, the timing and amount of credit losses, and other factors. Changes in cash flows from those originally projected, or from those estimated at the last evaluation, may result in a prospective change in the IRR/ interest income recognized on these securities or in the recognition of OTTIs. (See Note 3 ) Based on the projected cash flows from the Company’s Non-Agency MBS purchased at a discount to par value, a portion of the purchase discount may be designated as non-accretable purchase discount (“Credit Reserve”), which effectively mitigates the Company’s risk of loss on the mortgages collateralizing such MBS and is not expected to be accreted into interest income. The amount designated as Credit Reserve 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 with a Credit Reserve is more favorable than forecasted, a portion of the amount designated as Credit Reserve may be reallocated to accretable discount and recognized into interest income over time. Conversely, if the performance of a security with a Credit Reserve is less favorable than forecasted, the amount designated as Credit Reserve may be increased, or impairment charges and write-downs of such securities to a new cost basis could result. Determination of Fair Value for Residential Mortgage Securities In determining the fair value of the Company’s residential mortgage securities, management considers a number of observable market data points, including prices obtained from pricing services, brokers and repurchase agreement counterparties, dialogue with market participants, as well as management’s observations of market activity. (See Note 14 ) Impairments/OTTI When the fair value of an AFS security is less than its amortized cost at the balance sheet date, the security is considered impaired. The Company assesses its impaired securities on at least a quarterly basis and designates such impairments as either “temporary” or “other-than-temporary.” If the Company intends to sell an impaired security, or it is more likely than not that it will be required to sell the impaired security before its anticipated recovery, then the Company must recognize an OTTI through charges to earnings equal to the entire difference between the investment’s amortized cost and its fair value at the balance sheet date. If the Company does not expect to sell an other-than-temporarily impaired security, only the portion of the impairment related to credit losses is recognized through charges to earnings with the remainder recognized through AOCI on the consolidated balance sheets. Impairments recognized through other comprehensive income/(loss) (“OCI”) do not impact earnings. Following the recognition of an OTTI through earnings, a new cost basis is established for the security, which may not be adjusted for subsequent recoveries in fair value through earnings. However, OTTIs recognized through charges to earnings may, upon recovery, be accreted back to the amortized cost basis of the security on a prospective basis through interest income. The determination as to whether an OTTI exists and, if so, the amount of credit impairment recognized in earnings is subjective, as such determinations are based on factual information available at the time of assessment as well as the Company’s estimates of future performance and cash flow projections. As a result, the timing and amount of OTTIs constitute material estimates that are susceptible to significant change. (See Note 3 ) Non-Agency MBS that are assessed to be of less than high credit quality and on which impairments are recognized have experienced, or are expected to experience, credit-related adverse cash flow changes. The Company’s estimate of cash flows for its Non-Agency MBS is based on its review of the underlying mortgage loans securing the MBS. The Company considers information available about the past and expected future performance of underlying mortgage loans, including timing of expected future cash flows, prepayment rates, default rates, loss severities, delinquency rates, percentage of non-performing loans, year of origination, loan-to-value ratios (“LTVs”), geographic concentrations and dialogue with market participants. As a result, significant judgment is used in the Company’s analysis to determine the expected cash flows for its Non-Agency MBS. In determining the OTTI related to credit losses for securities that were purchased at significant discounts to par and/or are considered to be of less than high credit quality, the Company compares the present value of the remaining cash flows expected to be collected at the purchase date (or last date previously revised) against the present value of the cash flows expected to be collected at the current financial reporting date. The discount rate used to calculate the present value of expected future cash flows is the current yield used for income recognition purposes. Impairment assessment for Non-Agency MBS that were purchased at prices close to par and/or are otherwise considered to be of high credit quality involves comparing the present value of the remaining cash flows expected to be collected against the amortized cost of the security at the assessment date. The discount rate used to calculate the present value of the expected future cash flows is based on the instrument’s IRR. Balance Sheet Presentation The Company’s residential mortgage securities pledged as collateral against repurchase agreements and Swaps are included on the consolidated balance sheets with the fair value of the securities pledged disclosed parenthetically. Purchases and sales of securities are recorded on the trade date.
Residential Whole Loans (including Residential Whole Loans transferred to consolidated VIEs)	Residential Whole Loans (including Residential Whole Loans transferred to consolidated VIEs) Residential whole loans included in the Company’s consolidated balance sheets are primarily comprised of pools of fixed and adjustable rate residential mortgage loans acquired through consolidated trusts in secondary market transactions. The accounting model utilized by the Company is determined at the time each loan package is initially acquired and is generally based on the delinquency status of the majority of the underlying borrowers in the package at acquisition. The accounting model described below for purchased credit impaired loans that are held at carrying value is typically utilized by the Company for purchased credit impaired loans where the underlying borrower has a delinquency status of less than 60 days at the acquisition date. The Company also acquires purchased performing loans that are typically held at carrying value, but the accounting methods for income recognition and determination and measurement of any required loan loss reserves (as discussed below) differ from those used for purchased credit impaired loans held at carrying value. The accounting model described below for residential whole loans held at fair value is typically utilized by the Company for loans where the underlying borrower has a delinquency status of 60 days or more at the acquisition date. The accounting model initially applied is not subsequently changed. The Company’s residential whole loans pledged as collateral against repurchase agreements are included in the consolidated balance sheets with amounts pledged disclosed parenthetically. Purchases and sales of residential whole loans are recorded on the trade date, with amounts recorded reflecting management’s current estimate of assets that will be acquired or disposed at the closing of the transaction. This estimate is subject to revision at the closing of the transaction, pending the outcome of due diligence performed prior to closing. Recorded amounts of residential whole loans for which the closing of the purchase transaction is yet to occur are not eligible to be pledged as collateral against any repurchase agreement financing until the closing of the purchase transaction. (See Notes 4 , 6 , 7 , 14 and 15 ) Residential Whole Loans at Carrying Value Purchased Performing Loans Acquisitions of purchased performing loans to date have been primarily comprised of: (i) loans to finance (or refinance) one-to-four family residential properties that are not considered to meet the definition of a “Qualified Mortgage” in accordance with guidelines adopted by the Consumer Financial Protection Bureau (“Non-QM loans”), (ii) short-term business purpose loans collateralized by residential properties made to non-occupant borrowers who intend to rehabilitate and sell the property for a profit (“Rehabilitation loans” or “Fix and Flip loans”), (iii) loans to finance (or refinance) non-owner occupied one-to four-family residential properties that are rented to one or more tenants (“Single-family rental loans”), and (iv) previously originated loans secured by residential real estate that is generally owner occupied (“Seasoned performing loans”). Purchased performing loans are initially recorded at their purchase price. Interest income on purchased performing loans acquired at par is accrued based on each loan’s current interest bearing balance and current interest rate, net of related servicing costs. Interest income on such loans purchased at a premium/discount to par is recorded each period based on the contractual coupon net of any amortization of premium or accretion of discount, adjusted for actual prepayment activity. For loans acquired with related servicing rights retained by the seller, interest income is reported net of related serving costs. An allowance for loan losses is recorded when, based on current information and events, it is probable that the Company will be unable to collect all amounts due according to the existing contractual terms of the loan agreement. Any required loan loss allowance would typically be measured based on the fair value of the collateral securing the loan and would reduce the carrying value of the loan with a corresponding charge to earnings. Significant judgments are required in determining any allowance for loan loss, including assumptions regarding the loan cash flows expected to be collected, the value of the underlying collateral and the ability of the Company to collect on any other forms of security, such as a personal guaranty provided either by the borrower or an affiliate of the borrower. Income recognition is suspended for loans at the earlier of the date at which payments become 90 days past due or when, in the opinion of management, a full recovery of income and principal becomes doubtful. When the ultimate collectability of the principal of an impaired loan is in doubt, all payments are applied to principal under the cost recovery method. When the ultimate collectability of the principal of an impaired loan is not in doubt, interest income is recorded under the cash basis method as interest payments are received. Interest accruals are resumed when the loan becomes contractually current and performance is demonstrated to be resumed. A loan is written off when it is no longer realizable and/or it is legally discharged. Purchased Credit Impaired Loans The Company has elected to account for these loans as credit impaired as they were acquired at discounted prices that reflect, in part, the impaired credit history of the borrower. Substantially all of these loans have previously experienced payment delinquencies and the amount owed may exceed the value of the property pledged as collateral. Consequently, these loans generally have a higher likelihood of default than newly originated mortgage loans with LTVs of 80% or less to creditworthy borrowers. The Company believes that amounts paid to acquire these loans represent fair market value at the date of acquisition. Loans considered credit impaired are initially recorded at the purchase price with no allowance for loan losses. Subsequent to acquisition, the recorded amount for these loans reflects the original investment amount, plus accretion of interest income, less principal and interest cash flows received. These loans are presented on the Company’s consolidated balance sheets at carrying value, which reflects the recorded amount reduced by any allowance for loan losses established subsequent to acquisition. Under the application of the accounting model for purchased credit impaired loans, the Company may aggregate into pools loans acquired in the same fiscal quarter that are assessed as having similar risk characteristics. For each pool established, or on an individual loan basis for loans not aggregated into pools, the Company estimates at acquisition and periodically on at least a quarterly basis, the principal and interest cash flows expected to be collected. The difference between the cash flows expected to be collected and the carrying amount of the loans is referred to as the “accretable yield.” This amount is accreted as interest income over the life of the loans using an effective interest rate (level yield) methodology. Interest income recorded each period reflects the amount of accretable yield recognized and not the coupon interest payments received on the underlying loans. The difference between contractually required principal and interest payments and the cash flows expected to be collected is referred to as the “non-accretable difference,” and includes estimates of both the effect of prepayments and expected credit losses over the life of the underlying loans. A decrease in expected cash flows in subsequent periods may indicate impairment at the pool and/or individual loan level, thus requiring the establishment of an allowance for loan losses by a charge to the provision for loan losses. The allowance for loan losses generally represents the present value of cash flows expected at acquisition, adjusted for any increases due to changes in estimated cash flows, that are subsequently no longer expected to be received at the relevant measurement date. Under the accounting model applied to purchased credit impaired loans, a significant increase in expected cash flows in subsequent periods first reduces any previously recognized allowance for loan losses and then will result in a recalculation in the amount of accretable yield. The adjustment of accretable yield due to a significant increase in expected cash flows is accounted for prospectively as a change in estimate and results in reclassification from nonaccretable difference to accretable yield. Residential Whole Loans at Fair Value Certain of the Company’s residential whole loans are presented at fair value on its consolidated balance sheets as a result of a fair value election made at the time of acquisition. For the majority of these loans, there is significant uncertainty associated with estimating the timing of and amount of cash flows that will be collected. Further, the cash flows ultimately collected may be dependent on the value of the property securing the loan. Consequently, the Company considers that accounting for these loans at fair value should result in a better reflection over time of the economic returns for the majority of these loans. The Company determines the fair value of its residential whole loans held at fair value after considering portfolio valuations obtained from a third-party who specializes in providing valuations of residential mortgage loans and trading activity observed in the market place. Subsequent changes in fair value are reported in current period earnings and presented in Net gain on residential whole loans measured at fair value through earnings on the Company’s consolidated statements of operations. Cash received representing coupon payments on residential whole loans held at fair value is not included in Interest Income, but rather is included in Net gain on residential whole loans measured at fair value through earnings on the Company’s consolidated statements of operations. Cash outflows associated with loan related advances made by the Company on behalf of the borrower are included in the basis of the loan and are reflected in unrealized gains or losses reported each period.
MSR Related Assets	MSR-Related Assets The Company has investments in financial instruments whose cash flows are considered to be largely dependent on underlying MSRs that either directly or indirectly act as collateral for the investment. These financial instruments, which are referred to as MSR-related assets are discussed in more detail below. The Company’s MSR-related assets pledged as collateral against repurchase agreements are included in the consolidated balance sheets with the amounts pledged disclosed parenthetically. Purchases and sales of MSR-related assets are recorded on the trade date. (See Notes 3 , 6 , 7 and 14 ) Term Notes Backed by MSR-Related Collateral The Company has invested in term notes that are issued by special purpose vehicles (“SPV”) that have acquired rights to receive cash flows representing the servicing fees and/or excess servicing spread associated with certain MSRs. The Company considers payment of principal and interest on these term notes to be largely dependent on the cash flows generated by the underlying MSRs as this impacts the cash flows available to the SPV that issued the term notes. Credit risk borne by the holders of the term notes is also mitigated by structural credit support in the form of over-collateralization. Credit support is also provided by a corporate guarantee from the ultimate parent or sponsor of the SPV that is intended to provide for payment of interest and principal to the holders of the term notes should cash flows generated by the underlying MSRs be insufficient. The Company’s term notes backed by MSR-related collateral are treated as AFS securities and reported at fair value on the Company’s consolidated balance sheets with unrealized gains and losses excluded from earnings and reported in AOCI. Interest income is recognized on an accrual basis on the Company’s consolidated statements of operations. The Company’s valuation process for such notes considers a number of factors, including a comparable bond analysis performed by a third-party pricing service which involves determining a pricing spread at issuance of the term note. The pricing spread is used at each subsequent valuation date to determine an implied yield to maturity of the term note, which is then used to derive an indicative market value for the security. This indicative market value is further reviewed by the Company and may be adjusted to ensure it reflects a realistic exit price at the valuation date given the structural features of these securities. Other factors taken into consideration include indicative values provided by repurchase agreement counterparties, estimated changes in fair value of the related underlying MSR collateral and the financial performance of the ultimate parent or sponsoring entity of the issuer, which has provided a guarantee that is intended to provide for payment of interest and principal to the holders of the term notes should cash flows generated by the related underlying MSR collateral be insufficient. Corporate Loans The Company has made or participated in loans to provide financing to entities that originate residential mortgage loans and own the related MSRs. These corporate loans are generally secured by certain MSRs, as well as certain other unencumbered assets owned by the borrower. Corporate loans are recorded on the Company’s consolidated balance sheets at the drawn amount, on which interest income is recognized on an accrual basis on the Company’s consolidated statements of operations. Commitment fees received on the undrawn amount are deferred and recognized as interest income over the remaining loan term at the time of draw. At the end of the commitment period, any remaining deferred commitment fees are recorded as Other Income on the Company’s consolidated statements of operations. The Company evaluates the recoverability of its corporate loans on a quarterly basis considering various factors, including the current status of the loan, changes in the fair value of the MSRs that secure the loan and the recent financial performance of the borrower.
Cash and Cash Equivalents	Cash and Cash Equivalents Cash and cash equivalents include cash on deposit with financial institutions and investments in money market funds, all of which have original maturities of three months or less. Cash and cash equivalents may also include cash pledged as collateral to the Company by its repurchase agreement counterparties as a result of reverse margin calls (i.e., margin calls made by the Company). The Company did not hold any cash pledged by its counterparties at December 31, 2018 and 2017 .
Restricted Cash	Restricted Cash Restricted cash represents the Company’s cash held by its counterparties in connection with certain of the Company’s Swaps and/or repurchase agreements that is not available to the Company for general corporate purposes. Restricted cash may be applied against amounts due to repurchase agreement and/or Swap counterparties, or may be returned to the Company when the related collateral requirements are exceeded or at the maturity of the Swap and/or repurchase agreement.
Goodwill	Goodwill At December 31, 2018 and 2017 , the Company had goodwill of $7.2 million , which represents the unamortized portion of the excess of the fair value of its common stock issued over the fair value of net assets acquired in connection with its formation in 1998. Goodwill ,which is no longer subject to amortization, is tested for impairment at least annually, or more frequently under certain circumstances, at the entity level. Through December 31, 2018 , the Company had not recognized any impairment against its goodwill. Goodwill is included in Other assets on the Company’s consolidated balance sheets.
Real Estate Owned (REO)	Real Estate Owned (“REO”) REO represents real estate acquired by the Company, including through foreclosure, deed in lieu of foreclosure, or purchased in connection with the acquisition of residential whole loans. REO acquired through foreclosure or deed in lieu of foreclosure is initially recorded at fair value less estimated selling costs. REO acquired in connection with the acquisition of residential whole loans is initially recorded at its purchase price. Subsequent to acquisition, REO is reported, at each reporting date, at the lower of the current carrying amount or fair value less estimated selling costs and for presentation purposes is included in Other assets on the Company’s consolidated balance sheets. Changes in fair value that result in an adjustment to the reported amount of an REO property that has a fair value at or below its carrying amount are reported in Other Income, net on the Company’s consolidated statements of operations.
Depreciation	Depreciation Leasehold Improvements and Other Depreciable Assets Depreciation is computed on the straight-line method over the estimated useful life of the related assets or, in the case of leasehold improvements, over the shorter of the useful life or the lease term. Furniture, fixtures, computers and related hardware have estimated useful lives ranging from five to eight years at the time of purchase.
Resecuritization and Senior Notes Related Costs	Loan Securitization and Other Debt Issuance Costs Loan securitization related costs are costs associated with the issuance of beneficial interests by consolidated VIEs and incurred by the Company in connection with various financing transactions completed by the Company. Other debt issuance and related costs include costs incurred by the Company in connection with issuing 8% Senior Notes due 2042 (“Senior Notes”) and certain other repurchase agreement financings. These costs may include underwriting, rating agency, legal, accounting and other fees. Such costs, which reflect deferred charges, are included on the Company’s consolidated balance sheets as a direct deduction from the corresponding debt liability. These deferred charges are amortized as an adjustment to interest expense using the effective interest method. For Senior Notes and other repurchase agreement financings, such costs are amortized over the shorter of the period to the expected or stated legal maturity of the debt instruments. The Company periodically reviews the recoverability of these deferred costs and in the event an impairment charge is required, such amount will be included in Operating and Other Expense on the Company’s consolidated statements of operations.
Repurchase Agreements and Other Advances	Repurchase Agreements The Company finances the holdings of a significant portion of its residential mortgage assets with repurchase agreements. Under repurchase agreements, the Company sells securities to a lender and agrees to repurchase the same securities in the future for a price that is higher than the original sale price. The difference between the sale price that the Company receives and the repurchase price that the Company pays represents interest paid to the lender. Although legally structured as sale and repurchase transactions, the Company accounts for repurchase agreements as secured borrowings. Under its repurchase agreements, the Company pledges its securities as collateral to secure the borrowing, in an amount which is equal to a specified percentage of the fair value of the pledged collateral, while the Company retains beneficial ownership of the pledged collateral. At the maturity of a repurchase financing, unless the repurchase financing is renewed with the same counterparty, the Company is required to repay the loan including any accrued interest and concurrently receives back its pledged collateral from the lender. With the consent of the lender, the Company may renew a repurchase financing at the then prevailing financing terms. Margin calls, whereby a lender requires that the Company pledge additional assets or cash as collateral to secure borrowings under its repurchase financing with such lender, are routinely experienced by the Company when the value of the assets pledged as collateral declines as a result of principal amortization and prepayments or due to changes in market interest rates, spreads or other market conditions. The Company also may make margin calls on counterparties when collateral values increase. The Company’s repurchase financings typically have terms ranging from one month to six months at inception, but may also have longer or shorter terms. Should a counterparty decide not to renew a repurchase financing at maturity, the Company must either refinance elsewhere or be in a position to satisfy the obligation. If, during the term of a repurchase financing, a lender should default on its obligation, the Company might experience difficulty recovering its pledged assets which could result in an unsecured claim against the lender for the difference between the amount loaned to the Company plus interest due to the counterparty and the fair value of the collateral pledged by the Company to such lender, including accrued interest receivable on such collateral. (See Notes 6 , 7 and 14 ) In addition to the repurchase agreement financing arrangements discussed above, as part of its financing strategy for Non-Agency MBS, the Company in prior periods entered into contemporaneous repurchase and reverse repurchase agreements with a single counterparty. Under a typical reverse repurchase agreement, the Company buys securities from a borrower for cash and agrees to sell the same securities in the future for a price that is higher than the original purchase price. The difference between the purchase price the Company originally paid and the sale price represents interest received from the borrower. In contrast, the contemporaneous repurchase and reverse repurchase transactions effectively resulted in the Company pledging Non-Agency MBS as collateral to the counterparty in connection with the repurchase agreement financing and obtaining U.S. Treasury securities as collateral from the same counterparty in connection with the reverse repurchase agreement. No net cash was exchanged between the Company and counterparty at the inception of the transactions. Securities obtained and pledged as collateral are recorded in Other assets on the Company’s consolidated balance sheets. Interest income is recorded on the reverse repurchase agreement and interest expense is recorded on the repurchase agreement on an accrual basis. The Company’s liability to the counterparty in prior periods in connection with this financing arrangement is recorded in Other liabilities on the Company’s consolidated balance sheets and disclosed as “Obligation to return securities obtained as collateral, at fair value.”
Equity-Based Compensation	Equity-Based Compensation Compensation expense for equity-based awards that are subject to vesting conditions, is recognized ratably over the vesting period of such awards, based upon the fair value of such awards at the grant date. For certain awards granted prior to January 1, 2017, compensation expense recognized included the impact of estimated forfeitures, with any changes in estimated forfeiture rates accounted for as a change in estimate. Upon adoption of new accounting guidance that was effective for the Company on January 1, 2017, the Company made a policy election to account for forfeitures as they occur. Beginning in 2014, the Company has made annual grants of restricted stock units (“RSUs”) certain of which cliff vest after a three -year period, subject only to continued employment, and others of which cliff vest after a three -year period, subject to both continued employment and the achievement of certain performance criteria based on a formula tied to the Company’s achievement of average total shareholder return during that three-year period, as well as the total shareholder return (“TSR”) of the Company relative to the TSR of a group of peer companies (over the three-year period) selected by the Compensation Committee of the Company’s Board of Directors (the “Compensation Committee”) at the date of grant. The features in these awards related to the attainment of total shareholder return over a specified period constitute a “market condition” which impacts the amount of compensation expense recognized for these awards. Specifically, the uncertainty regarding the achievement of the market condition was reflected in the grant date fair valuation of the RSUs, which is recognized as compensation expense over the relevant vesting period. The amount of compensation expense recognized is not dependent on whether the market condition was or will be achieved. The Company makes dividend equivalent payments in connection with certain of its equity-based awards. A dividend equivalent is a right to receive a distribution equal to the dividend distributions that would be paid on a share of the Company’s common stock. Dividend equivalents may be granted as a separate instrument or may be a right associated with the grant of another award (e.g., an RSU) under the Company’s Equity Compensation Plan (the “Equity Plan”), and they are paid in cash or other consideration at such times and in accordance with such rules, terms and conditions, as the Compensation Committee may determine in its discretion. Payments pursuant to dividend equivalents are generally charged to Stockholders’ Equity to the extent that the attached equity awards are expected to vest. Compensation expense is recognized for payments made for dividend equivalents to the extent that the attached equity awards (i) do not or are not expected to vest and (ii) grantees are not required to return payments of dividends or dividend equivalents to the Company.
Earnings per Common Share ("EPS")	Earnings per Common Share (“EPS”) Basic EPS is computed using the two-class method, which includes the weighted-average number of shares of common stock outstanding during the period and an estimate of other securities that participate in dividends, such as the Company’s unvested restricted stock and RSUs that have non-forfeitable rights to dividends and dividend equivalents attached to/associated with RSUs and vested stock options to arrive at total common equivalent shares. In applying the two-class method, earnings are allocated to both shares of common stock and estimated securities that participate in dividends based on their respective weighted-average shares outstanding for the period. For the diluted EPS calculation, common equivalent shares are further adjusted for the effect of dilutive unexercised stock options and RSUs outstanding that are unvested and have dividends that are subject to forfeiture using the treasury stock method. Under the treasury stock method, common equivalent shares are calculated assuming that all dilutive common stock equivalents are exercised and the proceeds, along with future compensation expenses associated with such instruments, are used to repurchase shares of the Company’s outstanding common stock at the average market price during the reported period.
Comprehensive Income/(Loss)	Comprehensive Income/(Loss) The Company’s comprehensive income/(loss) available to common stock and participating securities includes net income, the change in net unrealized gains/(losses) on its AFS securities and derivative hedging instruments (to the extent that such changes are not recorded in earnings), adjusted by realized net gains/(losses) reclassified out of AOCI for sold AFS securities, and is reduced by dividends declared on the Company’s preferred stock and issuance costs of redeemed preferred stock.
U.S. Federal Income Taxes	U.S. Federal Income Taxes The Company has elected to be taxed as a REIT under the provisions of the Internal Revenue Code of 1986, as amended, (the “Code”) and the corresponding provisions of state law. The Company expects to operate in a manner that will enable it to satisfy the various requirements to maintain its status as a REIT for federal income tax purposes. In order to maintain its status as a REIT, the Company must, among other things, distribute at least 90% of its REIT taxable income (excluding net long-term capital gains) to stockholders in the timeframe permitted by the Code. As long as the Company maintains its status as a REIT, the Company will not be subject to regular federal income tax to the extent that it distributes 100% of its REIT taxable income (including net long-term capital gains) to its stockholders within the permitted timeframe. Should this not occur, the Company would be subject to federal taxes at prevailing corporate tax rates on the difference between its REIT taxable income and the amounts deemed to be distributed for that tax year. As the Company’s objective is to distribute 100% of its REIT taxable income to its stockholders within the permitted timeframe, no provision for current or deferred income taxes has been made in the accompanying consolidated financial statements. Should the Company incur a liability for corporate income tax, such amounts would be recorded as REIT income tax expense on the Company’s consolidated statements of operations. Furthermore, if the Company fails to distribute during each calendar year, or by the end of January following the calendar year in the case of distributions with declaration and record dates falling in the last three months of the calendar year, at least the sum of (i) 85% of its REIT ordinary income for such year, (ii) 95% of its REIT capital gain income for such year, and (iii) any undistributed taxable income from prior periods, the Company would be subject to a 4% nondeductible excise tax on the excess of the required distribution over the amounts actually distributed. To the extent that the Company incurs interest, penalties or related excise taxes in connection with its tax obligations, including as a result of its assessment of uncertain tax positions, such amounts will be included in Operating and Other Expense on the Company’s consolidated statements of operations. In addition, the Company has elected to treat certain of its subsidiaries as a 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. Generally, a domestic TRS is subject to U.S. federal, state and local corporate income taxes. Since a portion of the Company’s business is conducted through one or more TRS, its net taxable income earned by TRS, if any, is subject to corporate income taxation. To maintain the Company’s REIT election, no more than 20% of the value of a REIT’s assets at the end of each calendar quarter may consist of stock or securities in TRS. For purposes of the determination of U. S. federal and state income taxes, the Company’s subsidiaries that elected to be treated as a TRS record current or deferred income taxes based on differences (both permanent and timing) between the determination of their taxable income and net income under GAAP. No net deferred tax benefit was recorded by the Company in 2018 or 2017 , related to the net taxable losses in the TRS, since a valuation allowance for the full amount of the associated deferred tax asset of approximately $22.3 million was recognized as its recovery is not considered more likely than not. The related net operating loss carryforwards generated prior to 2018 will begin to expire in 2034; those generated in 2018 do not expire. Based on its analysis of any potential uncertain tax positions, the Company concluded that it does not have any material uncertain tax positions that meet the relevant recognition or measurement criteria as of December 31, 2018 , 2017 or 2016 . The Company filed its 2017 tax return prior to October 15, 2018 . The Company’s tax returns for tax years 2015 through 2017 are open to examination.
Derivative Financial Instruments	Derivative Financial Instruments The Company may use a variety of derivative instruments to economically hedge a portion of its exposure to market risks, including interest rate risk and prepayment risk. The objective of the Company’s risk management strategy is to reduce fluctuations in net book value over a range of interest rate scenarios. In particular, the Company attempts to mitigate the risk of the cost of its variable rate liabilities increasing during a period of rising interest rates. The Company’s derivative instruments are currently comprised of Swaps, the majority which are designated as cash flow hedges against the interest rate risk associated with its borrowings. Swaps The Company documents its risk-management policies, including objectives and strategies, as they relate to its hedging activities and the relationship between the hedging instrument and the hedged liability for all Swaps designated as hedging transactions. The Company assesses, both at the inception of a hedge and on a quarterly basis thereafter, whether or not the hedge is “highly effective.” Swaps are carried on the Company’s consolidated balance sheets at fair value, in Other assets, if their fair value is positive, or in Other liabilities, if their fair value is negative. Beginning in January 2017, variation margin payments on the Company’s Swaps that have been novated to a clearing house are treated as a legal settlement of the exposure under the Swap contract. Previously such payments were treated as collateral pledged against the exposure under the Swap contract. The effect of this change is to reduce what would have otherwise been reported as the fair value of the Swap. All of the Company’s Swaps have been novated to a central clearing house. Changes in the fair value of the Company’s Swaps designated in hedging transactions are recorded in OCI provided that the hedge remains effective. Changes in fair value for any ineffective amount of a Swap are recognized in earnings. The Company has not recognized any change in the value of its existing Swaps designated as hedges through earnings as a result of hedge ineffectiveness. Periodic payments accrued in connection with Swaps designated as hedges are included in interest expense, and are treated as an operating cash flow. The Company discontinues hedge accounting on a prospective basis and recognizes changes in fair value through earnings when: (i) it is determined that the derivative is no longer effective in offsetting cash flows of a hedged item (including forecasted transactions); (ii) it is no longer probable that the forecasted transaction will occur; or (iii) it is determined that designating the derivative as a hedge is no longer appropriate. (See Notes 5(c), 7 and 14) Changes in the fair value of the Company’s Swaps not designated in hedging transactions are recorded in Other income, net on the Company’s consolidated statements of operations.
Fair Value Measurements and the Fair Value Option for Financial Assets and Financial Liabilities	Fair Value Measurements and the Fair Value Option for Financial Assets and Financial Liabilities The Company’s presentation of fair value for its financial assets and liabilities is determined within a framework that stipulates that the fair value of a financial asset or liability is an exchange price in an orderly transaction between market participants to sell the asset or transfer the liability in the market in which the reporting entity would transact for the asset or liability, that is, the principal or most advantageous market for the asset or liability. The transaction to sell the asset or transfer the liability is a hypothetical transaction at the measurement date, considered from the perspective of a market participant that holds the asset or owes the liability. This definition of fair value focuses on exit price and prioritizes the use of market-based inputs over entity-specific inputs when determining fair value. In addition, the framework for measuring fair value establishes a three-level hierarchy for fair value measurements based upon the observability of inputs to the valuation of an asset or liability as of the measurement date. In addition to the financial instruments that it is required to report at fair value, the Company has elected the fair value option for certain of its residential whole loans, Agency MBS and CRT securities at the time of acquisition. Subsequent changes in the fair value of these financial instruments are reported in Other income, net, in the Company’s consolidated statements of operations. A decision to elect the fair value option for an eligible financial instrument, which may be made on an instrument by instrument basis, is irrevocable.
Variable Interest Entities	Variable Interest Entities An entity is referred to as a VIE if it meets at least one of the following criteria: (i) the entity has equity that is insufficient to permit the entity to finance its activities without the additional subordinated financial support of other parties; or (ii) as a group, the holders of the equity investment at risk lack (a) the power to direct the activities of an entity that most significantly impact the entity’s economic performance; (b) the obligation to absorb the expected losses; or (c) the right to receive the expected residual returns; or (iii) the holders of the equity investment at risk have disproportional voting rights and the entity’s activities are conducted on behalf of the investor that has disproportionately few voting rights. The Company consolidates a VIE when it has both the power to direct the activities that most significantly impact the economic performance of the VIE and a right to receive benefits or absorb losses of the entity that could be potentially significant to the VIE. The Company is required to reconsider its evaluation of whether to consolidate a VIE each reporting period, based upon changes in the facts and circumstances pertaining to the VIE. The Company has entered into several financing transactions which resulted in the Company forming entities to facilitate these transactions. In determining the accounting treatment to be applied to these transactions, the Company concluded that the entities used to facilitate these transactions are VIEs and that they should be consolidated. If the Company had determined that consolidation was not required, it would have then assessed whether the transfers of the underlying assets would qualify as sale or should be accounted for as secured financings under GAAP. (See Note 15 ) The Company also includes on its consolidated balance sheets certain financial assets and liabilities that are acquired/issued by trusts and /or other special purpose entities that have been evaluated as being required to be consolidated by the Company under the applicable accounting guidance.
Offering Costs Related to Issuance and Redemption of Preferred Stock	Offering Costs Related to Issuance and Redemption of Preferred Stock Offering costs related to the issuance of preferred stock are recorded as a reduction in Additional paid-in capital, a component of Stockholders’ Equity, at the time such preferred stock is issued. On redemption of preferred stock, any excess of the fair value of the consideration transferred to the holders of the preferred stock over the carrying amount of the preferred stock in the Company’s consolidated balance sheets is included in the determination of Net Income Available to Common Stock and Participating Securities in the calculation of EPS.
New Accounting Standards and Interpretations	New Accounting Standards and Interpretations Accounting Standards Adopted in 2018 Compensation - Stock Compensation - Scope of Modification Accounting In May 2017, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2017-09, Scope of Modification Accounting (“ASU 2017-09”). The amendments in ASU 2017-09 provide guidance about which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting. Pursuant to this ASU, an entity should account for the effects of a modification unless all of the following are met: (1) the fair value (or calculated value or intrinsic value, if such an alternative measurement method is used) of the modified award is the same as the fair value (or calculated value or intrinsic value, if such an alternative measurement method is used) of the original award immediately before the original award is modified; (2) the vesting conditions of the modified award are the same as the vesting conditions of the original award immediately before the original award is modified; and (3) the classification of the modified award as an equity instrument or a liability instrument is the same as the classification of the original award immediately before the original award date is modified. The Company adopted ASU 2017-09 on January 1, 2018 and its adoption did not have an impact on its financial position or financial statement disclosures. Statement of Cash Flows - Restricted Cash In November 2016, the FASB issued ASU 2016-18, Restricted Cash (“ASU 2016-18”). ASU 2016-18 clarifies how entities should present restricted cash and restricted cash equivalents in the statement of cash flows with the objective of reducing the existing diversity in practice. The amendments in ASU 2016-18 require restricted cash and restricted cash equivalents to be included with cash and cash equivalents when reconciling the beginning-of-period and end-of period total amounts shown on the statement of cash flows. The Company adopted ASU 2016-18 on January 1, 2018 and its adoption did not have a significant impact on its financial position or financial statement disclosures. Statement of Cash Flows - Classification of Certain Cash Receipts and Cash Payments In August 2016, the FASB issued ASU 2016-15, Classification of Certain Cash Receipts and Cash Payments (“ASU 2016-15”). The amendments in ASU 2016-15 provide guidance for eight specific cash flow classification issues, certain cash receipts and cash payments on the statement of cash flows with the objective of reducing the existing diversity in practice. The Company adopted ASU 2016-15 on January 1, 2018 and its adoption did not have a significant impact on its financial position or financial statement disclosures. Financial Instruments - Overall - Recognition and Measurement of Financial Assets and Financial Liabilities In January 2016, the FASB issued ASU 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities (“ASU 2016-01”). The amendments in this ASU affect all entities that hold financial assets or owe financial liabilities, and address certain aspects of recognition, measurement, presentation, and disclosure of financial instruments. The classification and measurement guidance of investments in debt securities and loans are not affected by the amendments in this ASU. ASU 2016-01 was effective for the Company for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017. The Company’s adoption of this ASU on January 1, 2018 did not have a significant impact on the Company’s financial position or financial statement disclosures as the classification and measurement of its investments in debt securities and loans were not affected by the amendments in this ASU. Revenue from Contracts with Customers In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (“ASU 2014-09”). The ASU requires an entity to recognize revenue in an amount that reflects the consideration to which it expects to be entitled for the transfer of promised goods or services to customers. ASU 2014-09 replaced most existing revenue recognition guidance in GAAP when it became effective. The Company adopted this ASU on January 1, 2018 and its adoption did not have a material impact on the Company’s financial position or financial statement disclosures as the majority of the Company’s revenues are generated by financial instruments that are explicitly scoped out of this ASU. On adoption of the new standard on January 1, 2018, the Company recorded a transition adjustment, under the modified retrospective approach, of approximately $295,000 to the opening balance of retained earnings in order to reflect the recognition of a gain on sale of REO that was previously deferred under the prior accounting guidance.

Residential Morgage Securities

Residential Morgage Securities and MSR Related Assets (Tables)	12 Months Ended
	Dec. 31, 2018
Investments, Debt and Equity Securities [Abstract]
Schedule of information about MBS and CRT Securities	The following tables present certain information about the Company’s residential mortgage securities at December 31, 2018 and 2017 : December 31, 2018 (In Thousands) Principal/ Current Face Purchase Premiums Accretable Purchase Discounts Discount Designated as Credit Reserve and OTTI (1) Amortized Cost (2) Fair Value Gross Unrealized Gains Gross Unrealized Losses Net Unrealized Gain/(Loss) Agency MBS: (3) Fannie Mae $ 1,716,340 $ 65,930 $ (24 ) $ — $ 1,782,246 $ 1,762,032 $ 12,107 $ (32,321 ) $ (20,214 ) Freddie Mac 909,561 36,991 — — 947,588 931,318 907 (17,177 ) (16,270 ) Ginnie Mae 4,729 87 — — 4,816 4,863 47 — 47 Total Agency MBS 2,630,630 103,008 (24 ) — 2,734,650 2,698,213 13,061 (49,498 ) (36,437 ) Non-Agency MBS: Expected to Recover Par ( 4)(5) 1,536,485 40 (21,725 ) — 1,514,800 1,527,700 20,520 (7,620 ) 12,900 Expected to Recover Less than Par (4) 2,002,319 — (133,300 ) (516,116 ) 1,352,903 1,790,599 438,465 (769 ) 437,696 Total Non-Agency MBS (6) 3,538,804 40 (155,025 ) (516,116 ) 2,867,703 3,318,299 458,985 (8,389 ) 450,596 Total MBS 6,169,434 103,048 (155,049 ) (516,116 ) 5,602,353 6,016,512 472,046 (57,887 ) 414,159 CRT securities (7) 476,744 9,321 107 — 486,172 492,821 12,545 (5,896 ) 6,649 Total MBS and CRT securities $ 6,646,178 $ 112,369 $ (154,942 ) $ (516,116 ) $ 6,088,525 $ 6,509,333 $ 484,591 $ (63,783 ) $ 420,808 December 31, 2017 (In Thousands) Principal/ Current Face Purchase Premiums Accretable Purchase Discounts Discount Designated as Credit Reserve and OTTI (1) Amortized Cost (2) Fair Value Gross Unrealized Gains Gross Unrealized Losses Net Unrealized Gain/(Loss) Agency MBS: (3) Fannie Mae $ 2,170,974 $ 82,271 $ (40 ) $ — $ 2,253,205 $ 2,246,600 $ 21,736 $ (28,341 ) $ (6,605 ) Freddie Mac 561,346 21,683 — — 584,920 571,748 1,624 (14,796 ) (13,172 ) Ginnie Mae 6,142 112 — — 6,254 6,333 79 — 79 Total Agency MBS 2,738,462 104,066 (40 ) — 2,844,379 2,824,681 23,439 (43,137 ) (19,698 ) Non-Agency MBS: Expected to Recover Par (4)(5) 1,128,808 50 (22,737 ) — 1,106,121 1,132,205 26,518 (434 ) 26,084 Expected to Recover Less than Par (4) 2,589,935 — (192,588 ) (593,227 ) 1,804,120 2,401,761 597,660 (19 ) 597,641 Total Non-Agency MBS (6) 3,718,743 50 (215,325 ) (593,227 ) 2,910,241 3,533,966 624,178 (453 ) 623,725 Total MBS 6,457,205 104,116 (215,365 ) (593,227 ) 5,754,620 6,358,647 647,617 (43,590 ) 604,027 CRT securities (7) 602,799 8,887 (3,550 ) — 608,136 664,403 56,290 (23 ) 56,267 Total MBS and CRT securities $ 7,060,004 $ 113,003 $ (218,915 ) $ (593,227 ) $ 6,362,756 $ 7,023,050 $ 703,907 $ (43,613 ) $ 660,294 (1) Discount designated as Credit Reserve and amounts related to OTTI are generally not expected to be accreted into interest income. Amounts disclosed at December 31, 2018 reflect Credit Reserve of $503.3 million and OTTI of $12.8 million . Amounts disclosed at December 31, 2017 reflect Credit Reserve of $579.0 million and OTTI of $14.2 million . (2) Includes principal payments receivable of $1.0 million and $1.9 million at December 31, 2018 and 2017 , respectively, which are not included in the Principal/Current Face. (3) Amounts disclosed at December 31, 2018 include Agency MBS with a fair value of $736.5 million for which the fair value option has been elected. Such securities had no unrealized gains and gross unrealized losses of approximately $3.3 million at December 31, 2018 . The Company did not have any Agency MBS for which the fair value option had been elected at December 31, 2017 . (4) Based on management ’ s current estimates of future principal cash flows expected to be received. (5) Includes RPL/NPL MBS, which at December 31, 2018 had a $1.4 billion Principal/Current face, $1.4 billion amortized cost and $1.4 billion fair value. At December 31, 2017 , RPL/NPL MBS had a $922.0 million Principal/Current face, $920.1 million amortized cost and $923.1 million fair value. (6) At December 31, 2018 and 2017 , the Company expected to recover approximately 85% and 84% , respectively, of the then-current face amount of Non-Agency MBS. (7) Amounts disclosed at December 31, 2018 includes CRT securities with a fair value of $477.4 million for which the fair value option has been elected. Such securities had gross unrealized gains of approximately $12.5 million and gross unrealized losses of approximately $5.6 million at December 31, 2018 . Amounts disclosed at December 31, 2017 includes CRT securities with a fair value of $528.9 million for which the fair value option had been elected. Such securities had gross unrealized gains of approximately $40.5 million and gross unrealized losses of approximately $23,000 at December 31, 2017 .
Schedule of information about MBS and CRT Securities that were in an unrealized loss position	The following table presents information about the Company’s residential mortgage securities that were in an unrealized loss position at December 31, 2018 : Unrealized Loss Position For: Less than 12 Months 12 Months or more Total (Dollars in Thousands) Fair Value Unrealized Losses Number of Securities Fair Value Unrealized Losses Number of Securities Fair Value Unrealized Losses Agency MBS: (1) Fannie Mae $ 282,850 $ 1,215 67 $ 919,504 $ 31,106 293 $ 1,202,354 $ 32,321 Freddie Mac 608,458 3,331 15 287,637 13,846 123 896,095 17,177 Total Agency MBS 891,308 4,546 82 1,207,141 44,952 416 2,098,449 49,498 Non-Agency MBS: Expected to Recover Par (2) 1,193,422 6,187 31 91,469 1,433 9 1,284,891 7,620 Expected to Recover Less than Par (2) 54,223 660 11 2,028 109 1 56,251 769 Total Non-Agency MBS 1,247,645 6,847 42 93,497 1,542 10 1,341,142 8,389 Total MBS 2,138,953 11,393 124 1,300,638 46,494 426 3,439,591 57,887 CRT securities (3) 167,195 5,896 41 — — — 167,195 5,896 Total MBS and CRT securities $ 2,306,148 $ 17,289 165 $ 1,300,638 $ 46,494 426 $ 3,606,786 $ 63,783 (1) Amounts disclosed at December 31, 2018 include Agency MBS with a fair value of $736.5 million on which the fair value option has been elected. Such securities had unrealized losses of $3.3 million at December 31, 2018 . (2) Based on management’s current estimates of future principal cash flows expected to be received. (3) Amounts disclosed at December 31, 2018 includes CRT securities with a fair value of $151.8 million for which the fair value option has been elected.
Schedule of composition of OTTI charges recorded	The following table presents the composition of OTTI charges recorded by the Company for the years ended December 31, 2018 , 2017 and 2016 : For the Year Ended December 31, (In Thousands) 2018 2017 2016 Total OTTI losses $ (1,259 ) $ (63 ) $ (1,255 ) OTTI recognized in/(reclassified from) OCI — (969 ) 770 OTTI recognized in earnings $ (1,259 ) $ (1,032 ) $ (485 )
Schedule of changes in credit loss component of OTTI	The following table presents a roll-forward of the credit loss component of OTTI on the Company’s Non-Agency MBS for which a non-credit component of OTTI was previously recognized in OCI. Changes in the credit loss component of OTTI are presented based upon whether the current period is the first time OTTI was recorded on a security or a subsequent OTTI charge was recorded. For the Year Ended December 31, (In Thousands) 2018 2017 2016 Credit loss component of OTTI at beginning of period $ 38,337 $ 37,305 $ 36,820 Additions for credit related OTTI not previously recognized 1,259 63 314 Subsequent additional credit related OTTI recorded — 969 171 Credit loss component of OTTI at end of period $ 39,596 $ 38,337 $ 37,305
Schedule of changes in the components of the purchase discount on Non-Agency MBS	The following table presents the changes in the components of the Company’s purchase discount on its Non-Agency MBS between purchase discount designated as Credit Reserve and OTTI and accretable purchase discount for the years ended December 31, 2018 and 2017 : For the Year Ended December 31, 2018 2017 (In Thousands) Discount Designated as Credit Reserve and OTTI Accretable Discount (1) Discount Designated as Credit Reserve and OTTI Accretable Discount (1) Balance at beginning of period $ (593,227 ) $ (215,325 ) $ (694,241 ) $ (278,191 ) Impact of RMBS Issuer settlement (2)(3) — (14,822 ) — — Accretion of discount — 70,750 — 77,513 Realized credit losses 42,246 — 49,291 — Purchases (2,512 ) 1,685 (29,810 ) 18,386 Sales 12,987 28,336 31,730 17,802 Net impairment losses recognized in earnings (1,259 ) — (1,032 ) — Transfers/release of credit reserve 25,649 (25,649 ) 50,835 (50,835 ) Balance at end of period $ (516,116 ) $ (155,025 ) $ (593,227 ) $ (215,325 ) (1) Together with coupon interest, accretable purchase discount is recognized as interest income over the life of the security. (2) Includes the impact of approximately $2.7 million of cash proceeds (a one-time payment) received by the Company during the year ended December 31, 2018 in connection with the settlement of litigation related to certain residential mortgage backed securitization trusts that were sponsored by Lehman Brothers Holdings Inc. (3) Includes the impact of approximately $12.1 million of cash proceeds (a one-time payment) received by the Company during the year ended December 31, 2018 in connection with the settlement of litigation related to certain residential mortgage backed securitization trusts that were sponsored by JP Morgan Chase & Co. and affiliated entities.
Schedule of impact of AFS on AOCI	The following table presents the impact of the Company’s AFS securities on its AOCI for the years ended December 31, 2018 , 2017 , and 2016 : For the Year Ended December 31, (In Thousands) 2018 2017 2016 AOCI from AFS securities: Unrealized gain on AFS securities at beginning of period $ 620,648 $ 620,403 $ 585,250 Unrealized loss on Agency MBS, net (17,891 ) (39,158 ) (9,322 ) Unrealized (loss)/gain on Non-Agency MBS, net (131,939 ) 78,337 81,882 Unrealized (loss)/gain on MSR term notes, net (812 ) 805 — Reclassification adjustment for MBS sales included in net income (51,580 ) (38,707 ) (36,922 ) Reclassification adjustment for OTTI included in net income (1,259 ) (1,032 ) (485 ) Change in AOCI from AFS securities (203,481 ) 245 35,153 Balance at end of period $ 417,167 $ 620,648 $ 620,403
Schedule of interest income on MBS, CRT Securities and MSR Related Assets	The following table presents components of interest income on the Company’s residential mortgage securities and MSR-related assets for the years ended December 31, 2018 , 2017 and 2016 : For the Year Ended December 31, (In Thousands) 2018 2017 2016 Agency MBS Coupon interest $ 88,233 $ 96,678 $ 119,966 Effective yield adjustment (1) (25,930 ) (31,323 ) (36,897 ) Interest income $ 62,303 $ 65,355 $ 83,069 Legacy Non-Agency MBS Coupon interest $ 109,714 $ 127,645 $ 154,057 Effective yield adjustment (2)(3) 69,309 76,005 78,443 Interest income $ 179,023 $ 203,650 $ 232,500 RPL/NPL MBS Coupon interest $ 46,339 $ 65,957 $ 98,213 Effective yield adjustment (1)(4) 1,434 1,505 2,108 Interest income $ 47,773 $ 67,462 $ 100,321 CRT securities Coupon interest $ 30,628 $ 27,706 $ 13,023 Effective yield adjustment (2) 2,748 4,009 1,747 Interest income $ 33,376 $ 31,715 $ 14,770 MSR-related assets Coupon interest $ 27,176 $ 24,534 $ 2,090 Effective yield adjustment (1) 1,244 296 10 Interest income $ 28,420 $ 24,830 $ 2,100 (1) Includes amortization of premium paid net of accretion of purchase discount. For Agency MBS, RPL/NPL MBS and the corporate loan secured by MSRs, interest income is recorded at an effective yield, which reflects net premium amortization/accretion based on actual prepayment activity. (2) The effective yield adjustment is the difference between the net income calculated using the net yield, which is based on management’s estimates of the amount and timing of future cash flows, less the current coupon yield. (3) Includes accretion income recognized due to the impact of redemptions of certain securities that had been previously been purchased at a discount of $2.7 million , $1.7 million and $7,000 during the years ended December 31, 2018 , 2017 and 2016 , respectively. (4) Includes accretion income recognized due to the impact of redemptions of certain securities that had been previously been purchased at a discount of $1.4 million , $1.2 million and $1.6 million during the years ended December 31, 2018 , 2017 and 2016 , respectively.

Residential Whole Loans (Tables

Residential Whole Loans (Tables)	12 Months Ended
	Dec. 31, 2018
Receivables [Abstract]
Residential Whole Loans, at Carrying Value	The following table presents the components of the Company’s Residential whole loans, at carrying value at December 31, 2018 and 2017 : (Dollars In Thousands) December 31, 2018 December 31, 2017 Purchased performing loans: Non-QM loans $ 1,354,774 $ 55,612 Rehabilitation loans 494,576 56,706 Single-family rental loans 145,327 5,319 Seasoned performing loans 224,051 — Total purchased performing loans 2,218,728 117,637 Purchased credit impaired loans 797,987 790,879 Total Residential whole loans, at carrying value $ 3,016,715 908,516 Number of loans 11,149 4,792
Schedule of Interest Income Components	The following table presents components of interest income on the Company’s Residential whole loans, at carrying value for the years ended December 31, 2018 , 2017 and 2016 : For the Year Ended December 31, (In Thousands) 2018 2017 2016 Purchased performing loans: Non-QM loans $ 31,036 $ 84 $ — Rehabilitation loans 15,975 431 — Single-family rental loans 3,315 15 — Seasoned performing loans 5,818 — — Total purchased performing loans 56,144 530 — Purchased credit impaired loans 44,777 35,657 23,916 Residential whole loans, at carrying value $ 100,921 $ 36,187 $ 23,916
Financing Receivable Credit Quality Indicators	The following table presents additional information regarding the Company’s Residential whole loans, at carrying value at December 31, 2018 : December 31, 2018 Carrying Value Unpaid Principal Balance (“UPB”) Weighted Average Coupon (1) Weighted Average Term to Maturity (Months) Weighted Average LTV Ratio (2) Aging by UPB Past Due Days (Dollars In Thousands) Current 30-59 60-89 90+ Purchased performing loans: (3) Non-QM loans $ 1,338,360 $ 1,293,805 6.19 % 361 66 % $ 1,271,410 $ 14,535 $ 4,802 $ 3,058 Rehabilitation loans 494,576 494,576 7.39 9 65 465,033 18,353 6,451 4,739 Single-family rental loans 145,327 144,972 5.92 355 70 143,226 1,225 — 521 Seasoned performing loans 224,051 242,539 4.25 191 47 233,105 6,439 1,618 1,377 Purchased credit impaired loans 797,987 1,002,261 4.38 302 86 N/A N/A N/A N/A Residential whole loans, at carrying value, total or weighted average $ 3,000,301 $ 3,178,153 5.68 % 275 (1) Weighted average is calculated based on the interest bearing principal balance of each loan within the related category. For loans acquired with servicing rights released by the seller, interest rates included in the calculation do not reflect loan servicing fees. For loans acquired with servicing rights retained by the seller, interest rates included in the calculation are net of servicing fees. (2) LTV represents the ratio of the total unpaid principal balance of the loan to the estimated value of the collateral securing the related loan as of the most recent date available, which may be the origination date. For Rehabilitation loans, the LTV presented is the ratio of the maximum unpaid principal balance of the loan, including unfunded commitments, to the estimated “after repaired” value of the collateral securing the related loan, where available. For certain Rehabilitation loans, totaling $79.0 million , an after repaired valuation was not obtained and the loan was underwritten based on an“as is” valuation. The LTV of these loans based on the current unpaid principal balance and the valuation obtained during underwriting, is 67% . Excluded from the calculation of weighted average LTV are certain low value loans secured by vacant lots, for which the LTV ratio is not meaningful. (3) Excluded from the table above are approximately $16.4 million of purchased performing loans held at carrying value for which the closing of the purchase transaction had not occurred as of December 31, 2018 .
Schedule of Activity in Allowance for Loan Losses, Residential Whole Loans	The following table presents the activity in the Company’s allowance for loan losses on its purchased credit impaired loans held at carrying value for the years ended December 31, 2018 , 2017 and 2016 : For the Year Ended December 31, (In Thousands) 2018 2017 2016 Balance at the beginning of period $ 330 $ 990 $ 1,165 Provisions/(reversal of provisions) for loan losses 638 (660 ) (175 ) Balance at the end of period $ 968 $ 330 $ 990
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period	The following table presents information regarding the estimates of the contractually required payments, the cash flows expected to be collected, and the estimated fair value of the purchased credit impaired loans held at carrying value acquired by the Company for the years ended December 31, 2018 and 2017 : For the Year Ended December 31, (In Thousands) 2018 2017 Contractually required principal and interest $ 154,911 $ 534,112 Contractual cash flows not expected to be collected (non-accretable yield) (15,378 ) (129,547 ) Expected cash flows to be collected 139,533 404,565 Interest component of expected cash flows (accretable yield) (41,947 ) (137,378 ) Fair value at the date of acquisition $ 97,586 $ 267,187
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement	The following table presents accretable yield activity for the Company’s purchased credit impaired loans held at carrying value for the years ended December 31, 2018 and 2017 : For the Year Ended December 31, (In Thousands) 2018 2017 Balance at beginning of period $ 421,872 $ 334,379 Additions 41,947 137,378 Accretion (44,777 ) (35,657 ) Liquidations and other (35,156 ) (16,356 ) Reclassifications from non-accretable difference, net 31,443 2,128 Balance at end of period $ 415,329 $ 421,872
Residential Whole Loans, Fair Value	The following table presents information regarding the Company’s residential whole loans held at fair value at December 31, 2018 and 2017 : (Dollars in Thousands) December 31, 2018 (1) December 31, 2017 Less than 60 Days Past Due: Outstanding principal balance $ 610,290 $ 488,600 Aggregate fair value $ 561,770 $ 446,616 Weighted Average LTV Ratio (2) 76.18 % 74.98 % Number of loans 2,898 2,323 60 Days to 89 Days Past Due: Outstanding principal balance $ 63,938 $ 45,955 Aggregate fair value $ 54,947 $ 37,927 Weighted Average LTV Ratio (2) 82.86 % 89.25 % Number of loans 285 207 90 Days or More Past Due: Outstanding principal balance $ 970,758 $ 1,027,818 Aggregate fair value $ 854,545 $ 840,572 Weighted Average LTV Ratio (2) 90.24 % 94.50 % Number of loans 3,531 3,984 Total Residential whole loans, at fair value $ 1,471,262 $ 1,325,115 (1) Excluded from the table above are approximately $194.7 million of residential whole loans held at fair value for which the closing of the purchase transaction had not occurred as of December 31, 2018 . (2) LTV represents the ratio of the total unpaid principal balance of the loan, to the estimated value of the collateral securing the related loan. Excluded from the calculation of weighted average LTV are certain low value loans secured by vacant lots, for which the LTV ratio is not meaningful.
Residential Whole Loans, Fair Value, Component of Net gain on residential whole loans	The following table presents the components of Net gain on residential whole loans measured at fair value through earnings for the years ended December 31, 2018 , 2017 and 2016 : For the Year Ended December 31, (In Thousands) 2018 2017 2016 Coupon payments and other income received (1) $ 70,515 $ 41,399 $ 23,017 Net unrealized gains 36,725 33,617 31,254 Net gain on payoff/liquidation of loans 11,087 4,958 5,413 Net gain on transfers to REO 19,292 10,071 2,921 Total $ 137,619 $ 90,045 $ 62,605 (1) Primarily includes recovery of delinquent interest upon the liquidation of non-performing loans, recurring coupon interest payments received on mortgage loans that are contractually current, and cash payments received from private mortgage insurance on liquidated loans.

Other Assets (Tables)

Other Assets (Tables)	12 Months Ended
	Dec. 31, 2018
Other Assets [Abstract]
Schedule of other assets	The following table presents the components of the Company’s Other assets at December 31, 2018 and 2017 : (In Thousands) December 31, 2018 December 31, 2017 Securities obtained and pledged as collateral, at fair value $ — $ 504,062 REO 249,413 152,356 MBS and loan related receivables 127,154 54,640 Other interest earning assets 92,022 — Goodwill 7,189 7,189 Other 52,007 23,983 Total Other Assets $ 527,785 $ 742,230
Schedule of activity for real estate owned	The following table presents the activity in the Company’s REO for the years ended December 31, 2018 and 2017 : For the Year Ended December 31, (Dollars In Thousands) 2018 2017 Balance at beginning of period $ 152,356 $ 80,503 Adjustments to record at lower of cost or fair value (15,929 ) (11,018 ) Transfer from residential whole loans (1) 215,038 136,734 Purchases and capital improvements 13,367 19,801 Disposals (115,419 ) (73,664 ) Balance at end of period $ 249,413 $ 152,356 Number of properties 1,093 709 (1) Includes net gain recorded on transfer of approximately $19.6 million and $10.2 million , respectively, for the years ended December 31, 2018 and 2017 .
Schedule of derivative instruments and balance sheet location	The following table presents the fair value of the Company’s derivative instruments and their balance sheet location at December 31, 2018 and 2017 : December 31, 2018 2017 Derivative Instrument (1) Designation Balance Sheet Location Notional Amount Fair Value Notional Amount Fair Value (In Thousands) Swaps Hedging Other assets $ 1,900,000 $ — $ 750,000 $ — Swaps Hedging Other liabilities $ 722,000 $ — $ 1,800,000 $ — Swaps Non-Hedging Other liabilities $ 595,000 $ — $ — $ — (1) Represents Swaps executed bilaterally with a counterparty in the over-the-counter market but then novated to a central clearing house, whereby the central clearing house becomes the counterparty to both of the original counterparties.
Schedule of assets pledged as collateral against derivative contracts	The following table presents the assets pledged as collateral against the Company’s Swap contracts at December 31, 2018 and 2017 : December 31, (In Thousands) 2018 2017 Agency MBS, at fair value $ 2,735 $ 21,756 Restricted cash 30,068 7,084 Total assets pledged against Swaps $ 32,803 $ 28,840
Schedule of information about swaps	The following table presents information about the Company’s Swaps at December 31, 2018 and 2017 : December 31, 2018 December 31, 2017 Maturity (1) Notional Amount Weighted Average Fixed-Pay Interest Rate Weighted Average Variable Interest Rate (2) Notional Amount Weighted Average Fixed-Pay Interest Rate Weighted Average Variable Interest Rate (2) (Dollars in Thousands) Within 30 days $ — — % — % $ — — % — % Over 30 days to 3 months 100,000 1.71 2.50 — — — Over 3 months to 6 months 100,000 1.71 2.50 50,000 1.45 1.56 Over 6 months to 12 months — — — 500,000 1.50 1.46 Over 12 months to 24 months 1,630,000 2.27 2.50 200,000 1.71 1.54 Over 24 months to 36 months 822,000 2.57 2.64 1,500,000 2.22 1.51 Over 36 months to 48 months — — — 200,000 2.20 1.53 Over 48 months to 60 months 395,000 2.88 2.63 — — — Over 60 months to 72 months — — — 100,000 2.75 1.50 Over 72 months to 84 months — — — — — — Over 84 months 170,000 3.00 2.66 — — — Total Swaps $ 3,217,000 2.42 % 2.56 % $ 2,550,000 2.04 % 1.50 % (1) Each maturity category reflects contractual amortization and/or maturity of notional amounts. (2) Reflects the benchmark variable rate due from the counterparty at the date presented, which rate adjusts monthly or quarterly based on one-month or three-month LIBOR, respectively.
Schedule of interest expense and the weighted average interest rate paid and received on swaps	The following table presents the net impact of the Company’s derivative hedging instruments on its interest expense and the weighted average interest rate paid and received for such Swaps for the years ended December 31, 2018 , 2017 and 2016 : For the Year Ended December 31, (Dollars in Thousands) 2018 2017 2016 Interest expense attributable to Swaps $ 3,780 $ 24,524 $ 40,898 Weighted average Swap rate paid 2.12 % 1.98 % 1.82 % Weighted average Swap rate received 1.96 % 1.07 % 0.48 %
Schedule of impact of hedging instruments on AOCI	The following table presents the impact of the Company’s derivative hedging instruments on its AOCI for the years ended December 31, 2018 , 2017 and 2016 : For the Year Ended December 31, (In Thousands) 2018 2017 2016 AOCI from derivative hedging instruments: Balance at beginning of period $ (11,424 ) $ (46,721 ) $ (69,399 ) Net gain on Swaps 14,545 35,297 22,678 Balance at end of period $ 3,121 $ (11,424 ) $ (46,721 )

Repurchase Agreements and Oth_2

Repurchase Agreements and Other Advances (Tables)	12 Months Ended
	Dec. 31, 2018
Disclosure of Repurchase Agreements [Abstract]
Schedule of Company's borrowings under repurchase agreements and associated assets pledged as collateral	The following table presents information with respect to the Company’s borrowings under repurchase agreements and associated assets pledged as collateral at December 31, 2018 and 2017 : (Dollars in Thousands) December 31, 2018 December 31, 2017 Repurchase agreement borrowings secured by Agency MBS $ 2,384,357 $ 2,501,340 Fair value of Agency MBS pledged as collateral under repurchase agreements $ 2,572,597 $ 2,705,754 Weighted average haircut on Agency MBS (1) 4.60 % 4.65 % Repurchase agreement borrowings secured by Legacy Non-Agency MBS $ 1,447,585 $ 1,256,033 Fair value of Legacy Non-Agency MBS pledged as collateral under repurchase agreements $ 1,817,650 $ 1,652,983 Weighted average haircut on Legacy Non-Agency MBS (1) 21.38 % 21.87 % Repurchase agreement borrowings secured by RPL/NPL MBS $ 1,084,532 $ 567,140 Fair value of RPL/NPL MBS pledged as collateral under repurchase agreements $ 1,377,250 $ 726,540 Weighted average haircut on RPL/NPL MBS (1) 21.31 % 22.05 % Repurchase agreements secured by U.S. Treasuries $ — $ 470,334 Fair value of U.S. Treasuries pledged as collateral under repurchase agreements $ — $ 472,095 Weighted average haircut on U.S. Treasuries (1) — % 1.47 % Repurchase agreements secured by CRT securities $ 391,586 $ 459,058 Fair value of CRT securities pledged as collateral under repurchase agreements $ 480,315 $ 595,900 Weighted average haircut on CRT securities (1) 20.01 % 22.16 % Repurchase agreements secured by residential whole loans (2) $ 2,020,508 $ 1,043,747 Fair value of residential whole loans pledged as collateral under repurchase agreements (3)(4) $ 2,441,931 $ 1,474,704 Weighted average haircut on residential whole loans (1) 16.55 % 26.10 % Repurchase agreements secured by MSR-related assets $ 474,127 $ 317,255 Fair value of MSR-related assets pledged as collateral under repurchase agreements $ 611,807 $ 482,158 Weighted average haircut on MSR-related assets (1) 21.88 % 33.19 % Repurchase agreements secured by other interest-earning assets $ 76,419 $ — Fair value of other interest-earning assets pledged as collateral under repurchase agreements $ 81,494 $ — Weighted average haircut on other interest-earning assets (1) 21.15 % — % (1) Haircut represents the percentage amount by which the collateral value is contractually required to exceed the loan amount. (2) Excludes $27,000 and $206,000 of unamortized debt issuance costs at December 31, 2018 and 2017 , respectively. (3) At December 31, 2018 includes Non-Agency MBS with an aggregate fair value of $27.0 million obtained in connection with the Company’s loan securitization transactions that are eliminated in consolidation. (4) At December 31, 2018 and 2017 , includes residential whole loans held at carrying value with an aggregate fair value of $1.7 billion and $478.5 million and aggregate amortized cost of $1.6 billion and $448.7 million , respectively and residential whole loans held at fair value with an aggregate fair value and amortized cost of $738.6 million and $996.2 million , respectively.
Schedule of repricing information about borrowings under repurchase agreements	The following table presents repricing information about the Company’s borrowings under repurchase agreements, which does not reflect the impact of associated derivative hedging instruments, at December 31, 2018 and 2017 : December 31, 2018 December 31, 2017 Time Until Interest Rate Reset Balance Weighted Average Interest Rate Balance Weighted Average Interest Rate (Dollars in Thousands) Within 30 days $ 6,747,166 3.35 % $ 6,161,008 2.39 % Over 30 days to 3 months 368,857 3.10 453,899 2.76 Over 3 months to 12 months 763,091 4.18 — — Total repurchase agreements $ 7,879,114 3.42 % $ 6,614,907 2.42 % Less debt issuance costs 27 206 Total repurchase agreements less debt issuance costs $ 7,879,087 $ 6,614,701
Schedule of contractual maturity information about repurchase agreements	The following table presents contractual maturity information about the Company’s borrowings under repurchase agreements, all of which are accounted for as secured borrowings, at December 31, 2018 and does not reflect the impact of derivative contracts that hedge such repurchase agreements: December 31, 2018 Contractual Maturity Overnight Within 30 Days Over 30 Days to 3 Months Over 3 Months to 12 Months Over 12 months Total (Dollars in Thousands) Agency MBS $ — $ 2,152,612 $ 231,745 $ — $ — $ 2,384,357 Legacy Non-Agency MBS — 1,402,625 44,960 — — 1,447,585 RPL/NPL MBS — 1,081,192 3,340 — — 1,084,532 CRT securities — 385,597 5,989 — — 391,586 Residential whole loans — 911,445 198,665 910,398 — 2,020,508 MSR-related assets — 342,227 131,900 — — 474,127 Other — 5,850 — 70,569 — 76,419 Total (1) $ — $ 6,281,548 $ 616,599 $ 980,967 $ — $ 7,879,114 Weighted Average Interest Rate — % 3.31 % 3.41 % 4.18 % — % 3.42 % (1) Excludes $27,000 of unamortized debt issuance costs at December 31, 2018 .
Schedule of information about counterparty for repurchase agreements for which the entity had greater than 5% of stockholders' equity at risk	The following table presents information with respect to each counterparty under repurchase agreements for which the Company had greater than 5% of stockholders’ equity at risk in the aggregate at December 31, 2018 : December 31, 2018 Counterparty Counterparty Rating (1) Amount at Risk (2) Weighted Average Months to Maturity for Repurchase Agreements Percent of Stockholders’ Equity (Dollars in Thousands) Goldman Sachs (3) BBB+/A3/A $ 319,685 1 9.4 % RBC (4) AA-/Aa2/AA 251,802 1 7.4 Wells Fargo (5) A+/Aa2/AA- 188,901 2 5.5 Barclay's Bank BBB/Aa3/A 174,998 4 5.1 (1) As rated at December 31, 2018 by S&P, Moody’s and Fitch, Inc., respectively. The counterparty rating presented is the lowest published for these entities. (2) The amount at risk reflects the difference between (a) the amount loaned to the Company through repurchase agreements, including interest payable, and (b) the cash and the fair value of the securities pledged by the Company as collateral, including accrued interest receivable on such securities. (3) Includes $190.4 million at risk with Goldman Sachs Bank USA and $129.3 million at risk with Goldman Sachs Lending Partners. (4) Includes $248.4 million at risk with RBC Barbados and $3.4 million at risk with RBC New York. Counterparty ratings are not published for RBC Barbados and RBS Capital Market LLC. (5) Includes $187.6 million at risk with Wells Fargo Bank, NA and $1.3 million at risk with Wells Fargo Securities LLC.

Other Liabilities (Tables)

Other Liabilities (Tables)	12 Months Ended
	Dec. 31, 2018
Other Liabilities [Abstract]
Other Liabilities	The following table presents the components of the Company’s Other liabilities at December 31, 2018 and 2017 : (In Thousands) December 31, 2018 December 31, 2017 Securitized debt (1) $ 684,420 $ 363,944 Obligation to return securities held as collateral, at fair value — 504,062 Senior Notes 96,816 96,773 Dividends and dividend equivalents payable 90,198 79,771 Accrued interest payable 16,280 12,263 Payable for unsettled residential whole loans purchases 211,129 — Accrued expenses and other 26,296 21,584 Total Other Liabilities $ 1,125,139 $ 1,078,397 (1) Securitized debt represents third-party liabilities of consolidated VIEs and excludes liabilities of the VIEs acquired by the Company that are eliminated in consolidation. The third-party beneficial interest holders in the VIEs have no recourse to the general credit of the Company. (See Notes 10 and 15 for further discussion.)

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Schedule of Future Minimum Rental Payments for Operating Leases	At December 31, 2018 , the contractual minimum rental payments (exclusive of possible rent escalation charges and normal recurring charges for maintenance, insurance and taxes) were as follows: Year Ended December 31, Minimum Rental Payments (1) (In Thousands) 2019 $ 2,553 2020 2,553 2021 1,292 2022 — 2023 — Thereafter — Total $ 6,398 (1) Table excludes amounts related to the lease agreement for new office space discussed above as the Company is not contractually obligated to make rental payments until fourteen months after a temporary certificate of occupancy is delivered to the landlord, which is currently expected to occur on or before October 2020.

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	12 Months Ended
	Dec. 31, 2018
Stockholders' Equity Note [Abstract]
Schedule of cash dividends declared on Series B preferred stock	The following table presents cash dividends declared by the Company on its Series B Preferred Stock from January 1, 2016 through December 31, 2018 : Year Declaration Date Record Date Payment Date Dividend Per Share 2018 November 26, 2018 December 7, 2018 December 28, 2018 $0.46875 August 20, 2018 September 7, 2018 September 28, 2018 0.46875 May 17, 2018 June 4, 2018 June 29, 2018 0.46875 February 20, 2018 March 2, 2018 March 30, 2018 0.46875 2017 November 17, 2017 December 1, 2017 December 29, 2017 $0.46875 August 10, 2017 September 1, 2017 September 29, 2017 0.46875 May 16, 2017 June 2, 2017 June 30, 2017 0.46875 February 17, 2017 March 6, 2017 March 31, 2017 0.46875 2016 November 22, 2016 December 6, 2016 December 30, 2016 $0.46875 August 12, 2016 September 2, 2016 September 30, 2016 0.46875 May 18, 2016 June 3, 2016 June 30, 2016 0.46875 February 12, 2016 February 29, 2016 March 31, 2016 0.46875
Schedule of cash dividends declared on common stock	The following table presents cash dividends declared by the Company on its common stock from January 1, 2016 through December 31, 2018 : Year Declaration Date Record Date Payment Date Dividend Per Share 2018 December 12, 2018 December 28, 2018 January 31, 2019 $0.20 (1) September 13, 2018 October 1, 2018 October 31, 2018 0.20 June 7, 2018 June 29, 2018 July 31, 2018 0.20 March 7, 2018 March 29, 2018 April 30, 2018 0.20 2017 December 13, 2017 December 28, 2017 January 31, 2018 $0.20 September 14, 2017 September 28, 2017 October 31, 2017 0.20 June 12, 2017 June 29, 2017 July 28, 2017 0.20 March 8, 2017 March 29, 2017 April 28, 2017 0.20 2016 December 14, 2016 December 28, 2016 January 31, 2017 $0.20 September 15, 2016 September 28, 2016 October 31, 2016 0.20 June 14, 2016 June 28, 2016 July 29, 2016 0.20 March 11, 2016 March 28, 2016 April 29, 2016 0.20 (1) At December 31, 2018 , the Company had accrued dividends and dividend equivalents payable of $90.2 million related to the common stock dividend declared on December 12, 2018 .
Public Offering of Common Stock	The table below presents information with respect to shares of the Company’s common stock issued through public offerings during the years ended December 31, 2018 and 2017 . Share Issue Date Shares Issued Gross Proceeds Per Share Gross Proceeds (In Thousands, Except Per Share Amounts) August 7, 2018 50,875 (1 ) $ 7.78 $ 395,807 (1) May 10, 2017 23,000 $ 7.85 $ 180,550 (2) (1) Includes approximately 875,000 shares issued on September 5, 2018 pursuant to the exercise of the underwriters’ option to purchase additional shares. The Company incurred approximately $6.4 million of underwriting discounts and related expenses in connection with this equity offering. (2) The Company incurred approximately $2.3 million of underwriting discounts and related expenses in connection with this equity offering.
Schedule of changes in balances in each component of the entity's AOCI	The following table presents changes in the balances of each component of the Company’s AOCI for the years ended December 31, 2018 , 2017 and 2016 : For the Year Ended December 31, 2018 2017 2016 (In Thousands) Net Unrealized Gain/(Loss) on AFS Securities Net Gain/(Loss) on Swaps Total AOCI Net Unrealized Gain/(Loss) on AFS Securities Net Total AOCI Net Net Total AOCI Balance at beginning of period $ 620,648 $ (11,424 ) $ 609,224 $ 620,403 $ (46,721 ) $ 573,682 $ 585,250 $ (69,399 ) $ 515,851 OCI before reclassifications (150,642 ) 14,545 (136,097 ) 39,984 35,297 75,281 72,560 22,678 95,238 Amounts reclassified from AOCI (1) (52,839 ) — (52,839 ) (39,739 ) — (39,739 ) (37,407 ) — (37,407 ) Net OCI during period (2) (203,481 ) 14,545 (188,936 ) 245 35,297 35,542 35,153 22,678 57,831 Balance at end of period $ 417,167 $ 3,121 $ 420,288 $ 620,648 $ (11,424 ) $ 609,224 $ 620,403 $ (46,721 ) $ 573,682 (1) See separate table below for details about these reclassifications. (2) For further information regarding changes in OCI, see the Company’s consolidated statements of comprehensive income/(loss).
Information about the significant amounts reclassified out of the entity's AOCI	The following table presents information about the significant amounts reclassified out of the Company’s AOCI for the years ended December 31, 2018 , 2017 , and 2016 : For the Year Ended December 31, 2018 2017 2016 Details about AOCI Components Amounts Reclassified from AOCI Affected Line Item in the Statement (In Thousands) AFS Securities: Realized gain on sale of securities $ (51,580 ) $ (38,707 ) $ (36,922 ) Net realized gain on sales of residential mortgage securities OTTI recognized in earnings (1,259 ) (1,032 ) (485 ) Other, net Total AFS Securities $ (52,839 ) $ (39,739 ) $ (37,407 ) Total reclassifications for period $ (52,839 ) $ (39,739 ) $ (37,407 )

EPS Calculation (Tables)

EPS Calculation (Tables)	12 Months Ended
	Dec. 31, 2018
Earnings Per Share [Abstract]
Schedule of reconciliation of the earnings and shares used in calculating basic and diluted EPS	The following table presents a reconciliation of the earnings and shares used in calculating basic and diluted EPS for the years ended December 31, 2018 , 2017 and 2016 : For the Year Ended December 31, (In Thousands, Except Per Share Amounts) 2018 2017 2016 Numerator: Net income $ 301,801 $ 322,393 $ 312,668 Dividends declared on preferred stock (15,000 ) (15,000 ) (15,000 ) Dividends, dividend equivalents and undistributed earnings allocated to participating securities (1,864 ) (1,708 ) (1,628 ) Net income to common stockholders - basic and diluted $ 284,937 $ 305,685 $ 296,040 Denominator: Weighted average common shares for basic and diluted earnings per share (1) 418,934 388,357 371,122 Basic and diluted earnings per share $ 0.68 $ 0.79 $ 0.80 (1) At December 31, 2018 , the Company had approximately 2.1 million equity instruments outstanding that were not included in the calculation of diluted EPS for the year ended December 31, 2018 , as their inclusion would have been anti-dilutive. These equity instruments reflect RSUs (based on current estimate of expected share settlement amount) with a weighted average grant date fair value of $6.78 . These equity instruments may have a dilutive impact on future EPS.

Equity Compensation, Employme_2

Equity Compensation, Employment Agreements and Other Benefit Plans (Tables)	12 Months Ended
	Dec. 31, 2018
Compensation Related Costs [Abstract]
Schedule of restricted stock units activity	The following table presents information with respect to the Company’s RSUs during the years ended December 31, 2018 , 2017 and 2016 : For the Year Ended December 31, 2018 RSUs With Service Condition Weighted Average Grant Date Fair Value RSUs With Market and Service Conditions Weighted Average Grant Date Fair Value Total RSUs Total Weighted Average Grant Date Fair Value Outstanding at beginning of year: 1,025,028 $ 7.67 1,021,250 $ 5.80 2,046,278 $ 6.73 Granted (1) 428,802 7.65 415,000 6.91 843,802 7.29 Settled (237,384 ) 8.17 (275,000 ) 5.73 (512,384 ) 6.86 Cancelled/forfeited (10,000 ) 7.23 (10,000 ) 5.64 (20,000 ) 6.44 Outstanding at end of year 1,206,446 $ 7.57 1,151,250 $ 6.21 2,357,696 $ 6.90 RSUs vested but not settled at end of year 708,946 $ 7.47 290,000 $ 4.81 998,946 $ 6.70 RSUs unvested at end of year 497,500 $ 7.71 861,250 $ 6.69 1,358,750 $ 7.06 For the Year Ended December 31, 2017 RSUs With Service Condition Weighted Average Grant Date Fair Value RSUs With Market and Service Conditions Weighted Average Grant Date Fair Value Total RSUs Total Outstanding at beginning of year: 1,194,299 $ 7.38 863,800 $ 5.45 2,058,099 $ 6.57 Granted (2) 447,695 7.96 451,250 6.48 898,945 7.22 Settled (616,966 ) 7.32 (293,800 ) 5.83 (910,766 ) 6.84 Cancelled/forfeited — — — — — — Outstanding at end of year 1,025,028 $ 7.67 1,021,250 $ 5.80 2,046,278 $ 6.73 RSUs vested but not settled at end of year 586,419 $ 7.98 275,000 $ 5.73 861,419 $ 7.26 RSUs unvested at end of year 438,609 $ 7.25 746,250 $ 5.82 1,184,859 $ 6.35 For the Year Ended December 31, 2016 RSUs With Service Condition Weighted Average Grant Date Fair Value RSUs With Market and Service Conditions Weighted Average Grant Date Fair Value Total RSUs Total Outstanding at beginning of year: 1,138,930 $ 7.71 736,800 $ 5.66 1,875,730 $ 6.90 Granted (3) 420,695 6.81 307,500 4.81 728,195 5.96 Settled (360,326 ) 7.75 (175,500 ) 5.21 (535,826 ) 6.92 Cancelled/forfeited (5,000 ) 7.32 (5,000 ) 5.27 (10,000 ) 6.29 Outstanding at end of year 1,194,299 $ 7.38 863,800 $ 5.45 2,058,099 $ 6.57 RSUs vested but not settled at end of year 617,518 $ 7.45 293,800 $ 5.83 911,318 $ 6.93 RSUs unvested at end of year 576,781 $ 7.30 570,000 $ 5.25 1,146,781 $ 6.28 (1) The weighted average grant date fair value of these awards require the Company to estimate certain valuation inputs. In determining the fair value for 692,500 of these awards granted in 2018 , the Company applied: (i) a weighted average volatility estimate of approximately 17% , which was determined considering historic volatility in the price of the Company’s and its peer group companies’ common stock over the three -year period prior to the grant date and the implied volatility of certain exchange-traded options on the Company’s and peer group companies’ common stock at the grant date; and (ii) a weighted average risk-free rate of 2.36% based on the continuously compounded constant maturity treasury rate corresponding to a maturity commensurate with the expected vesting term of the awards. The weighted average grant date fair value for the remaining 151,302 awards with a service condition only was estimated based on the closing price of the Company’s common stock at the grant date of $7.70 . There are no post vesting conditions on these awards. (2) The weighted average grant date fair value of these awards require the Company to estimate certain valuation inputs. In determining the fair value for 758,750 of these awards granted in 2017 , the Company applied: (i) a weighted average volatility estimate of approximately 15% , which was determined considering historic volatility in the price of Company’s and its peer group companies’ common stock over the three -year period prior to the grant date and the implied volatility of certain exchange-traded options on the Company’s and peer group companies’ common stock at the grant date; and (ii) a weighted average risk-free rate of 1.46% based on the continuously compounded constant maturity treasury rate corresponding to a maturity commensurate with the expected vesting term of the awards. The weighted average grant date fair value for the remaining 140,195 awards with a service condition only was estimated based on the closing price of the Company’s common stock at the grant date of $8.31 . There are no post vesting conditions on these awards. (3) The weighted average grant date fair value of these awards require the Company to estimate certain valuation inputs. In determining the fair value for 615,000 of these awards granted in 2016 , the Company applied: (i) a weighted average volatility estimate of approximately 17% , which was determined considering historic volatility in the price of Company’s common stock over the three -year period prior to the grant date and the implied volatility of certain exchange-traded options on the Company’s common stock at the grant date; (ii) a weighted average risk-free rate of 1.20% based on the continuously compounded constant maturity treasury rate corresponding to a maturity commensurate with the expected vesting term of the awards; and (iii) an estimated annual dividend yield of 11% . The weighted average grant date fair value for the remaining 113,195 awards with a service condition only was estimated based on the closing price of the Company’s common stock at the grant date of $7.20 . There are no post vesting conditions on these awards.
Schedule of restricted stock activity	The following table presents information with respect to the Company’s restricted stock for the years ended December 31, 2018 , 2017 and 2016 : For the Year Ended December 31, 2018 2017 2016 Shares of Restricted Stock Weighted Average Grant Date Fair Value (1) Shares of Restricted Stock Weighted Average Grant Date Fair Value (1) Shares of Restricted Stock Weighted Average Grant Date Fair Value (1) Outstanding at beginning of year: — $ — 28,968 $ 7.12 110,920 $ 7.41 Granted 450,193 6.74 214,859 8.06 487,216 7.66 Vested (2) (450,193 ) 6.74 (243,827 ) 7.95 (567,851 ) 7.64 Cancelled/forfeited — — — — (1,317 ) 7.12 Outstanding at end of year — $ — — $ — 28,968 $ 7.12 (1) The grant date fair value of restricted stock awards is based on the closing market price of the Company’s common stock at the grant date. (2) All restrictions associated with restricted stock are removed on vesting.
Schedule of dividend equivalent rights activity	The following table presents information about the Company’s dividend equivalents rights awarded as separate instruments at and for the year ended December 31, 2016 . No such awards were granted during 2018 and 2017: For the Year Ended December 31, 2016 Number of Dividend Equivalent Rights Outstanding at beginning of year: 8,215 Granted — Cancelled, forfeited or expired (8,215 ) Outstanding at end of year —
Schedule of expenses related to equity-based compensation	The following table presents the Company’s expenses related to its equity-based compensation instruments for the years ended December 31, 2018 , 2017 and 2016 : For the Year Ended December 31, (In Thousands) 2018 2017 2016 RSUs (1) $ 4,974 $ 6,098 $ 4,792 Restricted shares of common stock 3,033 1,935 4,326 Dividend equivalent rights — — 44 Total $ 8,007 $ 8,033 $ 9,162 (1) Equity-based compensation for the year ended December 31, 2017 includes a one-time expense of approximately $900,000 for the accelerated vesting of certain time-based equity awards arising from the death of the Company’s former Chief Executive Officer.
Schedule of expenses related to deferred compensation plans	The following table presents the Company’s expenses related to its Deferred Plans for the years ended December 31, 2018 , 2017 and 2016 : For the Year Ended December 31, (In Thousands) 2018 2017 2016 Non-employee directors $ (165 ) $ 171 $ 231 Total $ (165 ) $ 171 $ 231
Schedule of aggregate income deferred by participants and associated liability under deferred compensation plans	The following table presents the aggregate amount of income deferred by participants of the Deferred Plans through December 31, 2018 and 2017 that had not been distributed and the Company’s associated liability for such deferrals at December 31, 2018 and 2017 : December 31, 2018 December 31, 2017 (In Thousands) Undistributed Income Deferred (1) Liability Under Deferred Plans Undistributed Income Deferred (1) Liability Under Deferred Plans Non-employee directors $ 2,263 $ 2,417 $ 1,688 $ 2,056 Total $ 2,263 $ 2,417 $ 1,688 $ 2,056 (1) Represents the cumulative amounts that were deferred by participants through December 31, 2018 and 2017 , which had not been distributed through such respective date.

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2018
Fair Value Disclosures [Abstract]
Schedule of quantitative information about significant unobservable inputs	The following tables present a summary of quantitative information about the significant unobservable inputs used in the fair value measurement of the Company’s residential whole loans held at fair value for which it has utilized Level 3 inputs to determine fair value as of December 31, 2018 and 2017 : December 31, 2018 (Dollars in Thousands) Fair Value (1) Valuation Technique Unobservable Input Weighted Average (2) Range Residential whole loans, at fair value $ 700,250 Discounted cash flow Discount rate 5.2 % 4.5-8.0% Prepayment rate 4.8 % 0.9-15.9% Default rate 4.1 % 0.0-24.1% Loss severity 12.9 % 0.0-100.0% $ 683,252 Liquidation model Discount rate 8.0 % 6.1-50.0% Annual change in home prices 3.5 % (0.5)-12.2% Liquidation timeline (in years) 1.8 0.1-4.5 Current value of underlying properties (3) $ 802 $2-$7,950 Total $ 1,383,502 December 31, 2017 (Dollars in Thousands) Fair Value (1) Valuation Technique Unobservable Input Weighted Average (2) Range Residential whole loans, at fair value $ 358,871 Discounted cash flow Discount rate 5.5 % 4.5-13.0% Prepayment rate 4.1 % 1.15-15.1% Default rate 2.9 % 0.0-6.5% Loss severity 13.8 % 0.0-100.0% $ 592,940 Liquidation model Discount rate 8.0 % 6.1-50.0% Annual change in home prices 2.5 % (8.0)-8.8% Liquidation timeline (in years) 1.6 0.1-4.5 Current value of underlying properties (3) $ 772 $0-$9,900 Total $ 951,811 (1) Excludes approximately $282.5 million and $373.3 million of loans for which management considers the purchase price continues to reflect the fair value of such loans at December 31, 2018 and 2017 , respectively. (2) Amounts are weighted based on the fair value of the underlying loan. (3) The simple average value of the properties underlying residential whole loans held at fair value valued via a liquidation model was approximately $400,000 and $336,000 as of December 31, 2018 and 2017 , respectively. The following tables present the Company’s financial instruments carried at fair value on a recurring basis as of December 31, 2018 and 2017 , on the consolidated balance sheets by the valuation hierarchy, as previously described: Fair Value at December 31, 2018 (In Thousands) Level 1 Level 2 Level 3 Total Assets: Agency MBS $ — $ 2,698,213 $ — $ 2,698,213 Non-Agency MBS — 3,318,299 — 3,318,299 CRT securities — 492,821 — 492,821 Residential whole loans, at fair value — — 1,665,978 1,665,978 Term notes backed by MSR-related collateral — — 538,499 538,499 Securities obtained and pledged as collateral — — — — Total assets carried at fair value $ — $ 6,509,333 $ 2,204,477 $ 8,713,810 Liabilities: Obligation to return securities obtained as collateral — — — — Total liabilities carried at fair value $ — $ — $ — $ — Fair Value at December 31, 2017 (In Thousands) Level 1 Level 2 Level 3 Total Assets: Agency MBS $ — $ 2,824,681 $ — $ 2,824,681 Non-Agency MBS, including MBS transferred to consolidated VIEs — 3,533,966 — 3,533,966 CRT securities — 664,403 — 664,403 Residential whole loans, at fair value — — 1,325,115 1,325,115 Term notes backed by MSR-related collateral — — 381,804 381,804 Securities obtained and pledged as collateral 504,062 — — 504,062 Total assets carried at fair value $ 504,062 $ 7,023,050 $ 1,706,919 $ 9,234,031 Liabilities: Obligation to return securities obtained as collateral 504,062 — — 504,062 Total liabilities carried at fair value $ 504,062 $ — $ — $ 504,062
Schedule of significant unobservable inputs used in fair value measurement	The following table presents additional information for the years ended December 31, 2018 and 2017 about the Company’s Residential whole loans, at fair value, which are classified as Level 3 and measured at fair value on a recurring basis: Residential Whole Loans, at Fair Value For the Year Ended December 31, (In Thousands) 2018 (1) 2017 Balance at beginning of period $ 1,325,115 $ 814,682 Purchases and capitalized advances 500,004 683,735 Changes in fair value recorded in Net gain on residential whole loans measured at fair value through earnings 36,725 33,617 Collection of principal, net of liquidation gains/losses (199,203 ) (87,072 ) Repurchases (1,807 ) (2,716 ) Transfer to REO (189,571 ) (117,131 ) Balance at end of period $ 1,471,263 $ 1,325,115 (1) Excluded from the table above are approximately $194.7 million of residential whole loans held at fair value for which the closing of the purchase transaction had not occurred as of December 31, 2018 . The following table presents additional information for the years ended December 31, 2018 and 2017 about the Company’s investments in term notes backed by MSR-related collateral held at fair value, which are classified as Level 3 and measured at fair value on a recurring basis: Term Notes Backed by MSR-Related Collateral Year Ended December 31, (In Thousands) 2018 2017 (1) Balance at beginning of period $ 381,804 $ — Purchases 548,404 381,000 Collection of principal (390,898 ) (140,980 ) Changes in unrealized gain/losses (811 ) 804 Transfers from Level 2 to Level 3 (1) — 140,980 Balance at end of period $ 538,499 381,804 (1) Investments in term notes backed by MSR-related collateral were transferred from Level 2 to Level 3 during the year ended December 31, 2017 as there had been very limited secondary market trading in these securities since issuance. Transfers between levels are deemed to take place on the first day of the reporting period in which the transfer has taken place.
Schedule of carrying value and fair value of financial instruments	The following table presents the carrying values and estimated fair values of the Company’s financial instruments at December 31, 2018 and 2017 : December 31, 2018 December 31, 2017 (In Thousands) Carrying Value Estimated Fair Value Carrying Value Estimated Fair Value Financial Assets: Agency MBS $ 2,698,213 $ 2,698,213 $ 2,824,681 $ 2,824,681 Non-Agency MBS 3,318,299 3,318,299 3,533,966 3,533,966 CRT securities 492,821 492,821 664,403 664,403 Residential whole loans, at carrying value 3,016,715 3,104,401 908,516 988,688 Residential whole loans, at fair value 1,665,978 1,665,978 1,325,115 1,325,115 MSR-related assets 611,807 611,807 492,080 493,026 Securities obtained and pledged as collateral — — 504,062 504,062 Cash and cash equivalents 51,965 51,965 449,757 449,757 Restricted cash 36,744 36,744 13,986 13,986 Financial Liabilities (1) : Repurchase agreements 7,879,087 7,896,672 6,614,701 6,623,255 Securitized debt 684,420 680,209 363,944 366,109 Obligation to return securities obtained as collateral — — 504,062 504,062 Senior Notes 96,816 99,951 96,773 103,729 (1) Carrying value of securitized debt, Senior Notes and certain repurchase agreements is net of associated debt issuance costs.

Use of Special Purpose Entiti_2

Use of Special Purpose Entities and Variable Interest Entities (Tables)	12 Months Ended
	Dec. 31, 2018
Use of Special Purpose Entities and Variable Interest Entities
Summary of key details related to securitization transactions	The following table summarizes the key details of the Company’s loan securitization transactions as of December 31, 2018 and 2017 : (Dollars in Thousands) December 2018 December 2017 Aggregate unpaid principal balance of residential whole loans sold $ 1,290,029 $ 620,924 Face amount of Senior Bonds issued by the VIE and purchased by third-party investors $ 802,817 $ 382,847 Outstanding amount of Senior Bonds $ 684,420 (1) $ 363,944 (1) Weighted average fixed rate for Senior Bonds issued 3.66 % (2) 3.14 % (2) Weighted average contractual maturity of Senior Bonds 31 years (2) 32 years (2) Face amount of Senior Support Certificates received by the Company (3) $ 275,174 $ 127,001 Cash received $ 802,815 $ 382,845 (1) Net of $3.8 million and $2.3 million of deferred financing costs at December 31, 2018 and 2017 , respectively. (2) At December 31, 2018 and 2017 , $582.8 million and $233.7 million , respectively, of Senior Bonds sold in securitization transactions contained a contractual coupon step-up feature whereby the coupon increases by 300 basis points at 36 months from issuance if the bond is not redeemed before such date. (3) Provides credit support to the Senior Bonds sold to third-party investors in the securitization transactions.

Summary of Quarterly Results _2

Summary of Quarterly Results of Operations (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract]
Summary of Quarterly Results of Operations (Unaudited)	2018 Quarter Ended (In Thousands, Except per Share Amounts) March 31 June 30 September 30 December 31 Interest income $ 103,752 $ 101,747 $ 117,432 $ 132,744 Interest expense (50,554 ) (51,810 ) (58,878 ) (70,944 ) Net interest income 53,198 49,937 58,554 61,800 Net gain on residential whole loans measured at fair value through earnings 38,498 32,443 34,942 31,736 Net realized gain on sales of residential mortgage securities 8,817 7,429 16,415 28,646 Other income 345 1,134 (2,998 ) (39,432 ) Operating and other expense (17,463 ) (20,548 ) (19,781 ) (21,871 ) Net income 83,395 70,395 87,132 60,879 Preferred stock dividends (3,750 ) (3,750 ) (3,750 ) (3,750 ) Net income available to common stock and participating securities $ 79,645 $ 66,645 $ 83,382 $ 57,129 Earnings per Common Share - Basic and Diluted $ 0.20 $ 0.17 $ 0.19 $ 0.13 2017 Quarter Ended (In Thousands, Except per Share Amounts) March 31 June 30 September 30 December 31 Interest income $ 117,257 $ 110,157 $ 105,133 $ 100,901 Interest expense (50,349 ) (49,022 ) (49,275 ) (48,495 ) Net interest income 66,908 61,135 55,858 52,406 Net gain on residential whole loans measured at fair value through earnings 13,773 16,208 18,679 41,385 Net realized gain on sales of residential mortgage securities 9,708 5,889 14,933 9,047 Other income 4,098 14,229 (4,515 ) 14,553 Operating and other expense (16,427 ) (17,526 ) (21,150 ) (16,798 ) Net income 78,060 79,935 63,805 100,593 Preferred stock dividends (3,750 ) (3,750 ) (3,750 ) (3,750 ) Net income available to common stock and participating securities $ 74,310 $ 76,185 $ 60,055 $ 96,843 Earnings per Common Share - Basic and Diluted $ 0.20 $ 0.20 $ 0.15 $ 0.24

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (MSR Related Assets, Residential Whole Loans, Cash and Goodwill) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)segment	Dec. 31, 2017USD ($)
Accounting Policies [Abstract]
Number of reportable segments | segment	1
Number of operating segments | segment	1
Number of days considered to classify loans delinquent (less than)	60 days
LTV percentage (or less)	80.00%
Cash and cash equivalents	$ 51,965	$ 449,757
Overnight money market funds	30,000	354,000
Restricted cash	36,744	13,986
Goodwill	$ 7,189	$ 7,189

Summary of Significant Accoun_4

Summary of Significant Accounting Policies (Depreciation) (Details) - Furniture, fixtures, computers and related hardwares	12 Months Ended
	Dec. 31, 2018
Minimum
Estimated useful life of long-lived assets
Estimated useful life	5 years
Maximum
Estimated useful life of long-lived assets
Estimated useful life	8 years

Summary of Significant Accoun_5

Summary of Significant Accounting Policies (Repurchase Agreements) (Details)	12 Months Ended
	Dec. 31, 2018
Accounting Policies [Abstract]
Repurchase financing period, low end of range	1 month
Repurchase financing period, high end of range	6 months

Summary of Significant Accoun_6

Summary of Significant Accounting Policies (Equity-Based Compensation, Taxes, Derivatives) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2014
Income Tax Disclosure
Percentage of annual REIT taxable income intended to be distributed to stockholders	100.00%
Income tax expense	$ 0
Deferred tax assets, TRS	$ 22,300,000
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of restricted share units (RSUs)		3 years

Summary of Significant Accoun_7

Summary of Significant Accounting Policies (New Accounting Standards and Interpretations) (Details)	Jan. 01, 2018USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect adjustment on adoption of new accounting standard for revenue recognition	$ 295,000
Retained Earnings | Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect adjustment on adoption of new accounting standard for revenue recognition	$ 295,000

Residential Morgage Securitie_2

Residential Morgage Securities and MSR Related Assets (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Debt Securities, Available-for-sale [Line Items]
Minimum term of fixed rate mortgages underlying MBS, years	15 years
Mortgage Backed Securities, Period of Fixed Rate Mortgages Maximum	30 years
Reclassification adjustment for other-than-temporary impairments included in net income	$ 1,259	$ 1,032	$ 485
Minimum | RPL/NPL MBS
Debt Securities, Available-for-sale [Line Items]
Debt instrument, basis spread on variable rate	3.00%
Debt instrument, coupon step-up period	36 months
Maximum | RPL/NPL MBS
Debt Securities, Available-for-sale [Line Items]
Debt instrument, basis spread on variable rate	4.00%
Debt instrument, coupon step-up period	48 months

Residential Morgage Securitie_3

Residential Morgage Securities and MSR Related Assets (MBS and CRT Securities) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Debt Securities, Available-for-sale [Line Items]
Principal/ Current Face	$ 6,646,178,000	$ 7,060,004,000
Purchase Premiums	112,369,000	113,003,000
Accretable Purchase Discounts	(154,942,000)	(218,915,000)
Discount Designated as Credit Reserve and OTTI	(516,116,000)	(593,227,000)
Amortized Cost	6,088,525,000	6,362,756,000
Fair Value	6,509,333,000	7,023,050,000
Gross Unrealized Gains	484,591,000	703,907,000
Gross Unrealized Losses	63,783,000	43,613,000
Net Unrealized Gain/(Loss)	420,808,000	660,294,000
Principal payments receivable	1,000,000	1,900,000
Agency MBS
Debt Securities, Available-for-sale [Line Items]
Principal/ Current Face	2,630,630,000	2,738,462,000
Purchase Premiums	103,008,000	104,066,000
Accretable Purchase Discounts	(24,000)	(40,000)
Discount Designated as Credit Reserve and OTTI	0	0
Amortized Cost	2,734,650,000	2,844,379,000
Fair Value	2,698,213,000	2,824,681,000
Gross Unrealized Gains	13,061,000	23,439,000
Gross Unrealized Losses	49,498,000	43,137,000
Net Unrealized Gain/(Loss)	(36,437,000)	(19,698,000)
Agency MBS | Fannie Mae
Debt Securities, Available-for-sale [Line Items]
Principal/ Current Face	1,716,340,000	2,170,974,000
Purchase Premiums	65,930,000	82,271,000
Accretable Purchase Discounts	(24,000)	(40,000)
Discount Designated as Credit Reserve and OTTI	0	0
Amortized Cost	1,782,246,000	2,253,205,000
Fair Value	1,762,032,000	2,246,600,000
Gross Unrealized Gains	12,107,000	21,736,000
Gross Unrealized Losses	32,321,000	28,341,000
Net Unrealized Gain/(Loss)	(20,214,000)	(6,605,000)
Agency MBS | Freddie Mac
Debt Securities, Available-for-sale [Line Items]
Principal/ Current Face	909,561,000	561,346,000
Purchase Premiums	36,991,000	21,683,000
Accretable Purchase Discounts	0	0
Discount Designated as Credit Reserve and OTTI	0	0
Amortized Cost	947,588,000	584,920,000
Fair Value	931,318,000	571,748,000
Gross Unrealized Gains	907,000	1,624,000
Gross Unrealized Losses	17,177,000	14,796,000
Net Unrealized Gain/(Loss)	(16,270,000)	(13,172,000)
Agency MBS | Ginnie Mae
Debt Securities, Available-for-sale [Line Items]
Principal/ Current Face	4,729,000	6,142,000
Purchase Premiums	87,000	112,000
Accretable Purchase Discounts	0	0
Discount Designated as Credit Reserve and OTTI	0	0
Amortized Cost	4,816,000	6,254,000
Fair Value	4,863,000	6,333,000
Gross Unrealized Gains	47,000	79,000
Gross Unrealized Losses	0	0
Net Unrealized Gain/(Loss)	47,000	79,000
Non-Agency MBS
Debt Securities, Available-for-sale [Line Items]
Principal/ Current Face	3,538,804,000	3,718,743,000
Purchase Premiums	40,000	50,000
Accretable Purchase Discounts	(155,025,000)	(215,325,000)
Discount Designated as Credit Reserve and OTTI	(516,116,000)	(593,227,000)
Amortized Cost	2,867,703,000	2,910,241,000
Fair Value	3,318,299,000	3,533,966,000
Gross Unrealized Gains	458,985,000	624,178,000
Gross Unrealized Losses	8,389,000	453,000
Net Unrealized Gain/(Loss)	450,596,000	623,725,000
Credit reserve	503,300,000	579,000,000
OTTI	12,800,000	14,200,000
Non-Agency MBS | Expected to Recover Par
Debt Securities, Available-for-sale [Line Items]
Principal/ Current Face	1,536,485,000	1,128,808,000
Purchase Premiums	40,000	50,000
Accretable Purchase Discounts	(21,725,000)	(22,737,000)
Discount Designated as Credit Reserve and OTTI	0	0
Amortized Cost	1,514,800,000	1,106,121,000
Fair Value	1,527,700,000	1,132,205,000
Gross Unrealized Gains	20,520,000	26,518,000
Gross Unrealized Losses	7,620,000	434,000
Net Unrealized Gain/(Loss)	12,900,000	26,084,000
Non-Agency MBS | Expected to Recover Less Than Par
Debt Securities, Available-for-sale [Line Items]
Principal/ Current Face	2,002,319,000	2,589,935,000
Purchase Premiums	0	0
Accretable Purchase Discounts	(133,300,000)	(192,588,000)
Discount Designated as Credit Reserve and OTTI	(516,116,000)	(593,227,000)
Amortized Cost	1,352,903,000	1,804,120,000
Fair Value	1,790,599,000	2,401,761,000
Gross Unrealized Gains	438,465,000	597,660,000
Gross Unrealized Losses	769,000	19,000
Net Unrealized Gain/(Loss)	$ 437,696,000	$ 597,641,000
Percentage of current face amount of Non-Agency MBS to be recovered	85.00%	84.00%
Total MBS
Debt Securities, Available-for-sale [Line Items]
Principal/ Current Face	$ 6,169,434,000	$ 6,457,205,000
Purchase Premiums	103,048,000	104,116,000
Accretable Purchase Discounts	(155,049,000)	(215,365,000)
Discount Designated as Credit Reserve and OTTI	(516,116,000)	(593,227,000)
Amortized Cost	5,602,353,000	5,754,620,000
Fair Value	6,016,512,000	6,358,647,000
Gross Unrealized Gains	472,046,000	647,617,000
Gross Unrealized Losses	57,887,000	43,590,000
Net Unrealized Gain/(Loss)	414,159,000	604,027,000
CRT securities
Debt Securities, Available-for-sale [Line Items]
Principal/ Current Face	476,744,000	602,799,000
Purchase Premiums	9,321,000	8,887,000
Accretable Purchase Discounts	107,000	(3,550,000)
Discount Designated as Credit Reserve and OTTI	0	0
Amortized Cost	486,172,000	608,136,000
Fair Value	492,821,000	664,403,000
Gross Unrealized Gains	12,545,000	56,290,000
Gross Unrealized Losses	5,896,000	23,000
Net Unrealized Gain/(Loss)	6,649,000	56,267,000
Agency MBS, Fair Value Option
Debt Securities, Available-for-sale [Line Items]
Fair Value	736,500,000
Gross Unrealized Gains	0
Gross Unrealized Losses	3,300,000
Debt securities, fair value option	736,500,000
RPL/NPL MBS
Debt Securities, Available-for-sale [Line Items]
Principal/ Current Face	1,400,000,000	922,000,000
Amortized Cost	1,400,000,000	920,100,000
Fair Value	1,400,000,000	923,100,000
CRT, Fair Value Option
Debt Securities, Available-for-sale [Line Items]
Fair Value	477,400,000	528,900,000
Gross Unrealized Gains	12,500,000	40,500,000
Gross Unrealized Losses	$ 5,600,000	$ 23,000

Residential Morgage Securitie_4

Residential Morgage Securities and MSR Related Assets (Sales of Residential Mortgage Securities) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Agency MBS
Debt Securities, Available-for-sale [Line Items]
Proceeds from sale of MBS categorized as available-for-sale	$ 122
Gains on sales of MBS	6.8
CRT securities
Debt Securities, Available-for-sale [Line Items]
Proceeds from sale of MBS categorized as available-for-sale	299.9
Gains on sales of MBS	31.4
Non-Agency MBS
Debt Securities, Available-for-sale [Line Items]
Proceeds from sale of MBS categorized as available-for-sale	117.1	$ 104	$ 85.6
Gains on sales of MBS	$ 36.7	$ 39.9	$ 35.8

Residential Morgage Securitie_5

Residential Morgage Securities and MSR Related Assets (Unrealized Losses on Residential Mortgage Securities) (Details) $ in Thousands	Dec. 31, 2018USD ($)security	Dec. 31, 2017USD ($)
Debt Securities, Available-for-sale [Line Items]
Fair value, less than 12 months	$ 2,306,148
Unrealized losses, less than 12 months	$ 17,289
Number of securities, less than 12 months | security	165
Fair value, 12 months or more	$ 1,300,638
Unrealized losses, 12 months or more	$ 46,494
Number of securities, 12 months or more | security	426
Fair Value	$ 3,606,786
Unrealized losses	63,783
MBS and CRT securities	6,509,333	$ 7,023,050
Unrealized losses	63,783	43,613
Agency MBS
Debt Securities, Available-for-sale [Line Items]
Fair value, less than 12 months	891,308
Unrealized losses, less than 12 months	$ 4,546
Number of securities, less than 12 months | security	82
Fair value, 12 months or more	$ 1,207,141
Unrealized losses, 12 months or more	$ 44,952
Number of securities, 12 months or more | security	416
Fair Value	$ 2,098,449
Unrealized losses	49,498
MBS and CRT securities	2,698,213	2,824,681
Unrealized losses	49,498	43,137
Agency MBS | Fannie Mae
Debt Securities, Available-for-sale [Line Items]
Fair value, less than 12 months	282,850
Unrealized losses, less than 12 months	$ 1,215
Number of securities, less than 12 months | security	67
Fair value, 12 months or more	$ 919,504
Unrealized losses, 12 months or more	$ 31,106
Number of securities, 12 months or more | security	293
Fair Value	$ 1,202,354
Unrealized losses	32,321
MBS and CRT securities	1,762,032	2,246,600
Unrealized losses	32,321	28,341
Agency MBS | Freddie Mac
Debt Securities, Available-for-sale [Line Items]
Fair value, less than 12 months	608,458
Unrealized losses, less than 12 months	$ 3,331
Number of securities, less than 12 months | security	15
Fair value, 12 months or more	$ 287,637
Unrealized losses, 12 months or more	$ 13,846
Number of securities, 12 months or more | security	123
Fair Value	$ 896,095
Unrealized losses	17,177
MBS and CRT securities	931,318	571,748
Unrealized losses	17,177	14,796
Agency MBS | Ginnie Mae
Debt Securities, Available-for-sale [Line Items]
MBS and CRT securities	4,863	6,333
Unrealized losses	0	0
Non-Agency MBS
Debt Securities, Available-for-sale [Line Items]
Fair value, less than 12 months	1,247,645
Unrealized losses, less than 12 months	$ 6,847
Number of securities, less than 12 months | security	42
Fair value, 12 months or more	$ 93,497
Unrealized losses, 12 months or more	$ 1,542
Number of securities, 12 months or more | security	10
Fair Value	$ 1,341,142
Unrealized losses	8,389
MBS and CRT securities	3,318,299	3,533,966
Unrealized losses	8,389	453
Non-Agency MBS | Expected to Recover Par
Debt Securities, Available-for-sale [Line Items]
Fair value, less than 12 months	1,193,422
Unrealized losses, less than 12 months	$ 6,187
Number of securities, less than 12 months | security	31
Fair value, 12 months or more	$ 91,469
Unrealized losses, 12 months or more	$ 1,433
Number of securities, 12 months or more | security	9
Fair Value	$ 1,284,891
Unrealized losses	7,620
MBS and CRT securities	1,527,700	1,132,205
Unrealized losses	7,620	434
Non-Agency MBS | Expected to Recover Less Than Par
Debt Securities, Available-for-sale [Line Items]
Fair value, less than 12 months	54,223
Unrealized losses, less than 12 months	$ 660
Number of securities, less than 12 months | security	11
Fair value, 12 months or more	$ 2,028
Unrealized losses, 12 months or more	$ 109
Number of securities, 12 months or more | security	1
Fair Value	$ 56,251
Unrealized losses	769
MBS and CRT securities	1,790,599	2,401,761
Unrealized losses	769	19
Total MBS
Debt Securities, Available-for-sale [Line Items]
Fair value, less than 12 months	2,138,953
Unrealized losses, less than 12 months	$ 11,393
Number of securities, less than 12 months | security	124
Fair value, 12 months or more	$ 1,300,638
Unrealized losses, 12 months or more	$ 46,494
Number of securities, 12 months or more | security	426
Fair Value	$ 3,439,591
Unrealized losses	57,887
MBS and CRT securities	6,016,512	6,358,647
Unrealized losses	57,887	43,590
CRT securities
Debt Securities, Available-for-sale [Line Items]
Fair value, less than 12 months	167,195
Unrealized losses, less than 12 months	$ 5,896
Number of securities, less than 12 months | security	41
Fair value, 12 months or more	$ 0
Unrealized losses, 12 months or more	$ 0
Number of securities, 12 months or more | security	0
Fair Value	$ 167,195
Unrealized losses	5,896
MBS and CRT securities	492,821	664,403
Unrealized losses	5,896	$ 23
Agency MBS, Fair Value Option
Debt Securities, Available-for-sale [Line Items]
MBS and CRT securities	736,500
Unrealized losses	3,300
CRT in Loss Positions Only, Fair Value Option
Debt Securities, Available-for-sale [Line Items]
MBS and CRT securities	151,800
Unrealized losses	$ 5,600

Residential Morgage Securitie_6

Residential Morgage Securities and MSR Related Assets (Composition of OTTI Charges) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Investments, Debt and Equity Securities [Abstract]
Total OTTI losses	$ (1,259)	$ (63)	$ (1,255)
OTTI recognized in/(reclassified from) OCI	0	(969)	770
OTTI recognized in earnings	$ (1,259)	$ (1,032)	$ (485)

Residential Morgage Securitie_7

Residential Morgage Securities and MSR Related Assets (Credit Loss Component of OTTI) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]
Credit loss component of OTTI at beginning of period	$ 38,337	$ 37,305	$ 36,820
Additions for credit related OTTI not previously recognized	1,259	63	314
Subsequent additional credit related OTTI recorded	0	969	171
Credit loss component of OTTI at end of period	$ 39,596	$ 38,337	$ 37,305

Residential Morgage Securitie_8

Residential Morgage Securities and MSR Related Assets (Purchase Discounts) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Discount Designated as Credit Reserve and OTTI | Non-Agency MBS
Changes in the components of the purchase discount on Non-Agency MBS
Balance at beginning of period	$ (593,227)	$ (694,241)
Impact of RMBS Issuer Settlement	0	0
Accretion of discount	0	0
Other than Temporary Impairment Losses, Investments, Portion in Other Comprehensive Income Loss, Tax, Including Portion Attributable to Noncontrolling Interest, Available-for-sale Securities	42,246	49,291
Purchases	(2,512)	(29,810)
Sales	12,987	31,730
Net impairment losses recognized in earnings	(1,259)	(1,032)
Transfers/release of credit reserve	25,649	50,835
Balance at end of period	(516,116)	(593,227)
Accretable Discount | Non-Agency MBS
Changes in the components of the purchase discount on Non-Agency MBS
Balance at beginning of period	(215,325)	(278,191)
Impact of RMBS Issuer Settlement	(14,822)	0
Accretion of discount	70,750	77,513
Other than Temporary Impairment Losses, Investments, Portion in Other Comprehensive Income Loss, Tax, Including Portion Attributable to Noncontrolling Interest, Available-for-sale Securities	0	0
Purchases	1,685	18,386
Sales	28,336	17,802
Net impairment losses recognized in earnings	0	0
Transfers/release of credit reserve	(25,649)	(50,835)
Balance at end of period	(155,025)	$ (215,325)
Lehman Brothers
Changes in the components of the purchase discount on Non-Agency MBS
Proceeds from legal settlements	2,700
Jp Morgan Chase
Changes in the components of the purchase discount on Non-Agency MBS
Proceeds from legal settlements	$ 12,100

Residential Morgage Securitie_9

Residential Morgage Securities and MSR Related Assets (MSR-Related Assets - Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Term notes backed by MSR-related collateral
Debt Securities, Available-for-sale [Line Items]
Term notes backed by MSR-related collateral	$ 538,499	$ 381,804
Amortized costs	538,500	381,000
Gross unrealized gains	$ 7	$ 804
Weighted average yield	5.32%	5.80%
Weighted average to maturity	4 years 8 months 5 days	3 years 4 months 24 days
Corporate Loan
Debt Securities, Available-for-sale [Line Items]
Commitment to lend	$ 100,000		$ 130,000
Amount drawn	$ 73,300	$ 111,200
Interest coupon rate	5.88%
Remaining term	1 year 8 months 12 days
Commitment period on undrawn amount	1 year 8 months 12 days
Commitment fee income	$ 136
Interest income	5,000	7,900
Discount accretion	$ 1,300	$ 296
Minimum | Corporate Loan
Debt Securities, Available-for-sale [Line Items]
Financing Receivable, Commitment Fee Income Rate	0.25%
Maximum | Corporate Loan
Debt Securities, Available-for-sale [Line Items]
Financing Receivable, Commitment Fee Income Rate	1.00%

Residential Morgage Securiti_10

Residential Morgage Securities and MSR Related Assets (Impact of AFS Securities on AOCI) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
AOCI from AFS Securities:
Unrealized gain on AFS securities at beginning of period	$ 620,648	$ 620,403	$ 585,250
Reclassification adjustment for MBS sales included in net income	(51,580)	(38,707)	(36,922)
Reclassification adjustment for OTTI included in net income	(1,259)	(1,032)	(485)
Change in AOCI from AFS securities	(203,481)	245	35,153
Balance at end of period	417,167	620,648	620,403
Agency MBS
AOCI from AFS Securities:
Unrealized (loss)/gain on AFS securities, net	(17,891)	(39,158)	(9,322)
Non-Agency MBS
AOCI from AFS Securities:
Unrealized (loss)/gain on AFS securities, net	(131,939)	78,337	81,882
Unrealized (loss)/gain on MSR term notes, net
AOCI from AFS Securities:
Unrealized (loss)/gain on AFS securities, net	$ (812)	$ 805	$ 0

Residential Morgage Securiti_11

Residential Morgage Securities and MSR Related Assets (Interest Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Agency MBS
Debt Securities, Available-for-sale [Line Items]
Coupon interest	$ 88,233	$ 96,678	$ 119,966
Effective yield adjustment	(25,930)	(31,323)	(36,897)
Interest income	62,303	65,355	83,069
Legacy Non-Agency MBS
Debt Securities, Available-for-sale [Line Items]
Coupon interest	109,714	127,645	154,057
Effective yield adjustment	69,309	76,005	78,443
Interest income	179,023	203,650	232,500
Accretion Income	2,700	1,700	7
RPL/NPL MBS
Debt Securities, Available-for-sale [Line Items]
Coupon interest	46,339	65,957	98,213
Effective yield adjustment	1,434	1,505	2,108
Interest income	47,773	67,462	100,321
Accretion Income	1,400	1,200	1,600
CRT securities
Debt Securities, Available-for-sale [Line Items]
Coupon interest	30,628	27,706	13,023
Effective yield adjustment	2,748	4,009	1,747
Interest income	33,376	31,715	14,770
MSR related assets
Debt Securities, Available-for-sale [Line Items]
Coupon interest	27,176	24,534	2,090
Effective yield adjustment	1,244	296	10
Interest income	$ 28,420	$ 24,830	$ 2,100

Residential Whole Loans (Narrat

Residential Whole Loans (Narrative) (Details) - USD ($) $ in Billions	Dec. 31, 2018	Dec. 31, 2017
Receivables [Abstract]
Total residential whole loans	$ 4.7	$ 2.2

Residential Whole Loans (Reside

Residential Whole Loans (Residential Whole Loans, at Carrying Value) (Details) $ in Thousands	Dec. 31, 2018USD ($)loan	Dec. 31, 2017USD ($)loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Residential whole loans, at carrying value	$ 3,016,715	$ 908,516
Number of loans | loan	11,149	4,792
Non-QM loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchased credit impaired loans	$ 1,354,774	$ 55,612
Rehabilitation loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchased credit impaired loans	494,576	56,706
Single-family rental loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchased credit impaired loans	145,327	5,319
Seasoned performing loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchased credit impaired loans	224,051	0
Total purchased performing loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchased credit impaired loans	2,218,728	117,637
Purchased credit impaired loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchased credit impaired loans	$ 797,987	$ 790,879

Residential Whole Loans (Compon

Residential Whole Loans (Components of Interest Income) (Details) - Residential whole loans - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income	$ 100,921	$ 36,187	$ 23,916
Non-QM loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income	31,036	84	0
Rehabilitation loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income	15,975	431	0
Single-family rental loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income	3,315	15	0
Seasoned performing loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income	5,818	0	0
Purchased Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income	56,144	530	0
Purchased credit impaired loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income	$ 44,777	$ 35,657	$ 23,916

Residential Whole Loans (Resi_2

Residential Whole Loans (Residential Whole Loans, at Carrying Value - Additional Information) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other loans held at carrying value excluded	$ 211,100
Purchased credit impaired loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchased credit impaired loans	797,987	$ 790,879
Non-QM loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchased credit impaired loans	1,354,774	55,612
Rehabilitation loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchased credit impaired loans	494,576	56,706
Single-family rental loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchased credit impaired loans	145,327	5,319
Seasoned performing loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchased credit impaired loans	224,051	$ 0
Other residential whole loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other loans held at carrying value excluded	$ 16,400
90 or more
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average LTV Ratio	90.24%	94.50%
Settled Whole Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Residential whole loans, at carrying value, total or weighted average	$ 3,000,301
Unpaid Principal Balance (“UPB”)	$ 3,178,153
Weighted Average Coupon	5.68%
Weighted Average Term to Maturity (Months)	275 months
Settled Whole Loans [Member] | Purchased credit impaired loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchased credit impaired loans	$ 797,987
Unpaid Principal Balance (“UPB”)	$ 1,002,261
Weighted Average Coupon	4.38%
Weighted Average Term to Maturity (Months)	302 months
Weighted Average LTV Ratio	86.00%
Settled Whole Loans [Member] | Non-QM loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchased credit impaired loans	$ 1,338,360
Unpaid Principal Balance (“UPB”)	$ 1,293,805
Weighted Average Coupon	6.19%
Weighted Average Term to Maturity (Months)	361 months
Weighted Average LTV Ratio	66.00%
Settled Whole Loans [Member] | Rehabilitation loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchased credit impaired loans	$ 494,576
Unpaid Principal Balance (“UPB”)	$ 494,576
Weighted Average Coupon	7.39%
Weighted Average Term to Maturity (Months)	9 months
Weighted Average LTV Ratio	65.00%
Settled Whole Loans [Member] | Single-family rental loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchased credit impaired loans	$ 145,327
Unpaid Principal Balance (“UPB”)	$ 144,972
Weighted Average Coupon	5.92%
Weighted Average Term to Maturity (Months)	355 months
Weighted Average LTV Ratio	70.00%
Settled Whole Loans [Member] | Seasoned performing loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchased credit impaired loans	$ 224,051
Unpaid Principal Balance (“UPB”)	$ 242,539
Weighted Average Coupon	4.25%
Weighted Average Term to Maturity (Months)	191 months
Weighted Average LTV Ratio	47.00%
Settled Whole Loans [Member] | Certain rehabilitation loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchased credit impaired loans	$ 79,000
Weighted Average LTV Ratio	67.00%
Settled Whole Loans [Member] | Current | Non-QM loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance (“UPB”)	$ 1,271,410
Settled Whole Loans [Member] | Current | Rehabilitation loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance (“UPB”)	465,033
Settled Whole Loans [Member] | Current | Single-family rental loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance (“UPB”)	143,226
Settled Whole Loans [Member] | Current | Seasoned performing loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance (“UPB”)	233,105
Settled Whole Loans [Member] | 30-59 | Non-QM loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance (“UPB”)	14,535
Settled Whole Loans [Member] | 30-59 | Rehabilitation loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance (“UPB”)	18,353
Settled Whole Loans [Member] | 30-59 | Single-family rental loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance (“UPB”)	1,225
Settled Whole Loans [Member] | 30-59 | Seasoned performing loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance (“UPB”)	6,439
Settled Whole Loans [Member] | 60-89 | Non-QM loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance (“UPB”)	4,802
Settled Whole Loans [Member] | 60-89 | Rehabilitation loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance (“UPB”)	6,451
Settled Whole Loans [Member] | 60-89 | Single-family rental loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance (“UPB”)	0
Settled Whole Loans [Member] | 60-89 | Seasoned performing loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance (“UPB”)	1,618
Settled Whole Loans [Member] | 90 or more | Non-QM loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance (“UPB”)	3,058
Settled Whole Loans [Member] | 90 or more | Rehabilitation loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance (“UPB”)	4,739
Settled Whole Loans [Member] | 90 or more | Single-family rental loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance (“UPB”)	521
Settled Whole Loans [Member] | 90 or more | Seasoned performing loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance (“UPB”)	$ 1,377

Residential Whole Loans (Purcha

Residential Whole Loans (Purchased Performing Loans) (Details)	Dec. 31, 2018USD ($)loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of other loans at carrying value | loan	28
Unpaid balance of other loans	$ 9,700,000
Total outstanding principal balance of all of the Company’s Other Loans at Carrying Value	0.20%
Allowance for loan loss reserves	$ 0
Rehabilitation loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commitment to lend, unfunded	$ 49,800,000

Residential Whole Loans (Purc_2

Residential Whole Loans (Purchased Credit Impaired Loans - Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Impaired [Line Items]
Allowance for loan losses	$ 968,000	$ 330,000	$ 990,000	$ 1,165,000
Provisions/(reversal of provisions) for loan losses		(660,000)	(175,000)
Purchased credit impaired loans
Financing Receivable, Impaired [Line Items]
Allowance for loan losses	968,000	330,000	$ 990,000
Provisions/(reversal of provisions) for loan losses	$ 638,000	$ (660,000)

Residential Whole Loans (Provis

Residential Whole Loans (Provision for Loan Losses) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Allowance for Loan and Lease Losses [Roll Forward]
Balance at the beginning of period	$ 330,000	$ 990,000	$ 1,165,000
Provisions/(reversal of provisions) for loan losses		(660,000)	(175,000)
Balance at the end of period	968,000	330,000	990,000
Purchased credit impaired loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance at the beginning of period	330,000	990,000
Provisions/(reversal of provisions) for loan losses	638,000	(660,000)
Balance at the end of period	$ 968,000	$ 330,000	$ 990,000

Residential Whole Loans (Carryi

Residential Whole Loans (Carrying Value) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Contractually required principal and interest	$ 154,911	$ 534,112
Contractual cash flows not expected to be collected (non-accretable yield)	(15,378)	(129,547)
Expected cash flows to be collected	139,533	404,565
Interest component of expected cash flows (accretable yield)	(41,947)	(137,378)
Fair value at the date of acquisition	$ 97,586	$ 267,187

Residential Whole Loans (Carr_2

Residential Whole Loans (Carrying Value Accretable Yield Rollforward) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Residential Whole Loans Accretable Yield [Roll Forward]
Balance at beginning of period	$ 421,872	$ 334,379
Additions	41,947	137,378
Accretion	(44,777)	(35,657)
Liquidations and other	(35,156)	(16,356)
Reclassifications (to)/from non-accretable difference, net	31,443	2,128
Balance at end of period	$ 415,329	$ 421,872

Residential Whole Loans (Fair V

Residential Whole Loans (Fair Value) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)loan	Dec. 31, 2017USD ($)loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Residential whole loans, at fair value	$ 1,471,262	$ 1,325,115
Less than 60 Days Past Due:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding principal balance	610,290	488,600
Aggregate fair value	$ 561,770	$ 446,616
Weighted Average LTV Ratio	76.18%	74.98%
Number of loans | loan	2,898	2,323
60 Days to 89 Days Past Due:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding principal balance	$ 63,938	$ 45,955
Aggregate fair value	$ 54,947	$ 37,927
Weighted Average LTV Ratio	82.86%	89.25%
Number of loans | loan	285	207
90 Days or More Past Due:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding principal balance	$ 970,758	$ 1,027,818
Aggregate fair value	$ 854,545	$ 840,572
Weighted Average LTV Ratio	90.24%	94.50%
Number of loans | loan	3,531	3,984
Residential whole loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Excluded amount, unsettled purchases, residential whole loans, at fair value	$ 194,700

Residential Whole Loans (Fair_2

Residential Whole Loans (Fair Value Components of Net Income) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Receivables [Abstract]
Coupon payments and other income received									$ 70,515	$ 41,399	$ 23,017
Net unrealized gains									36,725	33,617	31,254
Net gain on payoff/liquidation of loans									11,087	4,958	5,413
Net gain on transfers to REO									19,292	10,071	2,921
Total	$ 31,736	$ 34,942	$ 32,443	$ 38,498	$ 41,385	$ 18,679	$ 16,208	$ 13,773	$ 137,619	$ 90,045	$ 62,605

Other Assets (Details)

Other Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Other Assets [Abstract]
Securities obtained and pledged as collateral, at fair value	$ 0	$ 504,062
REO	249,413	152,356	$ 80,503
MBS and loan related receivables	127,154	54,640
Other interest earning assets	92,022	0
Goodwill	7,189	7,189
Other	52,007	23,983
Total Other Assets	$ 527,785	$ 742,230

Other Assets (Real Estate Owned

Other Assets (Real Estate Owned) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)property	Dec. 31, 2017USD ($)property	Dec. 31, 2016USD ($)property
Real Estate Owned Properties [Line Items]
Number of real estate properties reclassified to REO during period | property	1,078	698
Transfer from residential whole loans	$ 215,038	$ 136,734	$ 91,896
Residential Whole Loans acquired through foreclosure ordered in lieu	$ 242,000
Number of REO properties sold during period | property	705	517	256
Proceeds from sale of real estate owned	$ 123,200	$ 78,400	$ 37,900
Gains/(losses) on sales of real estate owned	7,715	4,475	$ 3,229
Adjustments to record at lower of cost or fair value	15,929	11,018
Estimated fair value
Real Estate Owned Properties [Line Items]
Transfer from residential whole loans	215,000	$ 136,700
Mortgage loans in process of foreclosure	720,100
Carrying value
Real Estate Owned Properties [Line Items]
Mortgage loans in process of foreclosure	$ 49,000

Other Assets (Real Estate Own_2

Other Assets (Real Estate Owned - Activity) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)property	Dec. 31, 2017USD ($)property	Dec. 31, 2016USD ($)
Real Estate Owned [Roll Forward]
Balance at beginning of period	$ 152,356	$ 80,503
Adjustments to record at lower of cost or fair value	(15,929)	(11,018)
Transfer from residential whole loans	215,038	136,734	$ 91,896
Purchases and capital improvements	13,367	19,801
Disposals	(115,419)	(73,664)
Balance at end of period	$ 249,413	$ 152,356	$ 80,503
Number of properties | property	1,093	709
Gain recorded on transfer from residential whole loans to real estate owned	$ 19,600	$ 10,200

Other Assets (Derivative Instru

Other Assets (Derivative Instruments Balance Sheet Location) (Details) - Swaps - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Hedging | Other assets
Derivative Instruments
Notional amount of derivative assets	$ 1,900,000	$ 750,000
Derivative assets, fair value	0	0
Hedging | Liabilities
Derivative Instruments
Notional amount of derivative liabilities	722,000	1,800,000
Derivative liabilities, at fair value	0	$ 0
Non-Hedging | Liabilities
Derivative Instruments
Notional amount of derivative liabilities	$ 595,000

(Swaps) (Details)

(Swaps) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Derivative [Line Items]
Interest expense attributable to Swaps	$ 70,944	$ 58,878	$ 51,810	$ 50,554	$ 48,495	$ 49,275	$ 49,022	$ 50,349	$ 232,186	$ 197,141	$ 193,355
Interest Rate Contract
Derivative [Line Items]
Assets Pledged	32,803				28,840				32,803	28,840
Interest Rate Contract | Agency MBS, at fair value
Derivative [Line Items]
Assets Pledged	2,735				21,756				2,735	21,756
Interest Rate Contract | Restricted cash
Derivative [Line Items]
Assets Pledged	30,068				7,084				30,068	7,084
Swaps, at fair value
Derivative [Line Items]
Aggregate notional amount of derivatives	$ 3,217,000				$ 2,550,000				$ 3,217,000	$ 2,550,000
Average maturity term of swaps									32 months
Weighted average fixed-pay rate	2.42%				2.04%				2.42%	2.04%
Weighted Average Variable Interest Rate	2.56%				1.50%				2.56%	1.50%
Interest expense attributable to Swaps									$ 3,780	$ 24,524	$ 40,898
Weighted average Swap rate paid									2.12%	1.98%	1.82%
Weighted average Swap rate received									1.96%	1.07%	0.48%
Swaps, at fair value | Within 30 days
Derivative [Line Items]
Aggregate notional amount of derivatives	$ 0				$ 0				$ 0	$ 0
Weighted average fixed-pay rate	0.00%				0.00%				0.00%	0.00%
Weighted Average Variable Interest Rate	0.00%				0.00%				0.00%	0.00%
Swaps, at fair value | Over 30 days to 3 months
Derivative [Line Items]
Aggregate notional amount of derivatives	$ 100,000				$ 0				$ 100,000	$ 0
Weighted average fixed-pay rate	1.71%				0.00%				1.71%	0.00%
Weighted Average Variable Interest Rate	2.50%				0.00%				2.50%	0.00%
Swaps, at fair value | Over 3 months to 6 months
Derivative [Line Items]
Aggregate notional amount of derivatives	$ 100,000				$ 50,000				$ 100,000	$ 50,000
Weighted average fixed-pay rate	1.71%				1.45%				1.71%	1.45%
Weighted Average Variable Interest Rate	2.50%				1.56%				2.50%	1.56%
Swaps, at fair value | Over 6 months to 12 months
Derivative [Line Items]
Aggregate notional amount of derivatives	$ 0				$ 500,000				$ 0	$ 500,000
Weighted average fixed-pay rate	0.00%				1.50%				0.00%	1.50%
Weighted Average Variable Interest Rate	0.00%				1.46%				0.00%	1.46%
Swaps, at fair value | Over 12 months to 24 months
Derivative [Line Items]
Aggregate notional amount of derivatives	$ 1,630,000				$ 200,000				$ 1,630,000	$ 200,000
Weighted average fixed-pay rate	2.27%				1.71%				2.27%	1.71%
Weighted Average Variable Interest Rate	2.50%				1.54%				2.50%	1.54%
Swaps, at fair value | Over 24 months to 36 months
Derivative [Line Items]
Aggregate notional amount of derivatives	$ 822,000				$ 1,500,000				$ 822,000	$ 1,500,000
Weighted average fixed-pay rate	2.57%				2.22%				2.57%	2.22%
Weighted Average Variable Interest Rate	2.64%				1.51%				2.64%	1.51%
Swaps, at fair value | Over 36 months to 48 months
Derivative [Line Items]
Aggregate notional amount of derivatives	$ 0				$ 200,000				$ 0	$ 200,000
Weighted average fixed-pay rate	0.00%				2.20%				0.00%	2.20%
Weighted Average Variable Interest Rate	0.00%				1.53%				0.00%	1.53%
Swaps, at fair value | Over 48 months to 60 months
Derivative [Line Items]
Aggregate notional amount of derivatives	$ 395,000				$ 0				$ 395,000	$ 0
Weighted average fixed-pay rate	2.88%				0.00%				2.88%	0.00%
Weighted Average Variable Interest Rate	2.63%				0.00%				2.63%	0.00%
Swaps, at fair value | Over 60 months to 72 months
Derivative [Line Items]
Aggregate notional amount of derivatives	$ 0				$ 100,000				$ 0	$ 100,000
Weighted average fixed-pay rate	0.00%				2.75%				0.00%	2.75%
Weighted Average Variable Interest Rate	0.00%				1.50%				0.00%	1.50%
Swaps, at fair value | Over 72 months to 84 months
Derivative [Line Items]
Aggregate notional amount of derivatives	$ 0				$ 0				$ 0	$ 0
Weighted average fixed-pay rate	0.00%				0.00%				0.00%	0.00%
Weighted Average Variable Interest Rate	0.00%				0.00%				0.00%	0.00%
Swaps, at fair value | Over 84 months
Derivative [Line Items]
Aggregate notional amount of derivatives	$ 170,000				$ 0				$ 170,000	$ 0
Weighted average fixed-pay rate	3.00%				0.00%				3.00%	0.00%
Weighted Average Variable Interest Rate	2.66%				0.00%				2.66%	0.00%
Swaps, at fair value | Hedging
Derivative [Line Items]
Aggregate notional amount of derivatives	$ 3,200,000								$ 3,200,000
Swaps, at fair value | Minimum | LIBOR
Derivative [Line Items]
Derivative, variable interest rate, term									1 month
Swaps, at fair value | Maximum
Derivative [Line Items]
Maximum maturity term of swaps									120 months
Swaps, at fair value | Maximum | LIBOR
Derivative [Line Items]
Derivative, variable interest rate, term									3 months
Swaps | Non-Hedging
Derivative [Line Items]
Loss on derivative									$ 9,600

Other Assets (Impact of Derivat

Other Assets (Impact of Derivative Hedging Instruments on AOCI) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Other Assets [Abstract]
Balance at beginning of period	$ (11,424)	$ (46,721)	$ (69,399)
Net gain on Swaps	14,545	35,297	22,678
Balance at end of period	$ 3,121	$ (11,424)	$ (46,721)

Repurchase Agreements and Oth_3

Repurchase Agreements and Other Advances (Repurchase Agreements and Associated Assets Pledged as Collateral) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Repurchase Agreements
Repurchase agreements	$ 7,879,087	$ 6,614,701
Fair value pledged as collateral	9,400,000	8,100,000
Aggregate fair value	33,100	19,600
Agency MBS
Repurchase Agreements
Repurchase agreements	2,384,357	2,501,340
Fair value pledged as collateral	$ 2,572,597	$ 2,705,754
Weighted average haircut rate	4.60%	4.65%
Non-Agency MBS
Repurchase Agreements
Repurchase agreements	$ 1,447,585	$ 1,256,033
Fair value pledged as collateral	$ 1,817,650	$ 1,652,983
Weighted average haircut rate	21.38%	21.87%
RPL/NPL MBS
Repurchase Agreements
Repurchase agreements	$ 1,084,532	$ 567,140
Fair value pledged as collateral	$ 1,377,250	$ 726,540
Weighted average haircut rate	21.31%	22.05%
U.S. Treasury securities
Repurchase Agreements
Repurchase agreements	$ 0	$ 470,334
Fair value pledged as collateral	$ 0	$ 472,095
Weighted average haircut rate	0.00%	1.47%
CRT securities
Repurchase Agreements
Repurchase agreements	$ 391,586	$ 459,058
Fair value pledged as collateral	$ 480,315	$ 595,900
Weighted average haircut rate	20.01%	22.16%
Residential whole loans, at fair value
Repurchase Agreements
Repurchase agreements	$ 2,020,508	$ 1,043,747
Fair value pledged as collateral	$ 2,441,931	$ 1,474,704
Weighted average haircut rate	16.55%	26.10%
Term Notes Backed by MSR-Related Collateral
Repurchase Agreements
Repurchase agreements	$ 474,127	$ 317,255
Fair value pledged as collateral	$ 611,807	$ 482,158
Weighted average haircut rate	21.88%	33.19%
Other Interest Earning Assets
Repurchase Agreements
Repurchase agreements	$ 76,419	$ 0
Fair value pledged as collateral	$ 81,494	$ 0
Weighted average haircut rate	21.15%	0.00%
Repurchase agreements
Repurchase Agreements
Weighted average remaining term-to-interest rate reset of borrowings under repurchase agreements	31 days	16 days
Effective repricing period	8 months	11 months
Repurchase agreements	$ 7,879,114	$ 6,614,907
Unamortized debt issuance expense	27	206
Loan Securitization
Repurchase Agreements
Fair value pledged as collateral	27,000
Residential Loans At Fair Value | Assets Pledged Under Repurchase Agreements
Repurchase Agreements
Fair value	1,700,000	478,500
Amortized cost	1,600,000	448,700
Aggregate fair value	$ 738,600	$ 996,200

Repurchase Agreements and Oth_4

Repurchase Agreements and Other Advances (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Repurchase Agreement Counterparty [Line Items]
Cash collateral pledged	$ 6,700	$ 6,900
Repurchase agreements	7,879,087	6,614,701
MSR Asset Financing
Repurchase Agreement Counterparty [Line Items]
Repurchase agreement, borrowing commitment	75,000
Term Notes Backed by MSR-Related Collateral
Repurchase Agreement Counterparty [Line Items]
Repurchase agreements	474,127	$ 317,255
Term Notes Backed by MSR-Related Collateral | Corporate Loan
Repurchase Agreement Counterparty [Line Items]
Repurchase agreements	$ 55,000
Minimum | MSR Asset Financing
Repurchase Agreement Counterparty [Line Items]
Line of credit facility, commitment fee rate	0.125%
Maximum | MSR Asset Financing
Repurchase Agreement Counterparty [Line Items]
Line of credit facility, commitment fee rate	0.50%

Repurchase Agreements and Oth_5

Repurchase Agreements and Other Advances (Repricing Information) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	$ 7,879,087	$ 6,614,701
Repurchase agreements
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	7,879,114	6,614,907
Less debt issuance costs	27	206
Total repurchase agreements less debt issuance costs	$ 7,879,087	$ 6,614,701
Weighted Average Interest Rate	3.42%	2.42%
Within 30 days | Repurchase agreements
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	$ 6,747,166	$ 6,161,008
Weighted Average Interest Rate	3.35%	2.39%
Over 30 days to 3 months | Repurchase agreements
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	$ 368,857	$ 453,899
Weighted Average Interest Rate	3.10%	2.76%
Over 3 months to 12 months | Repurchase agreements
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	$ 763,091	$ 0
Weighted Average Interest Rate	4.18%	0.00%

Repurchase Agreements and Oth_6

Repurchase Agreements and Other Advances (Maturity Information) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	$ 7,879,087	$ 6,614,701
Agency MBS
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	2,384,357	2,501,340
Non-Agency MBS
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	1,447,585	1,256,033
RPL/NPL MBS
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	1,084,532	567,140
CRT securities
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	391,586	459,058
Residential whole loans, at fair value
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	2,020,508	1,043,747
Term Notes Backed by MSR-Related Collateral
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	474,127	317,255
Other
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	76,419	0
Repurchase agreements
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	$ 7,879,114	$ 6,614,907
Weighted Average Interest Rate	3.42%	2.42%
Unamortized debt issuance expense	$ 27	$ 206
Overnight | Agency MBS
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	0
Overnight | Non-Agency MBS
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	0
Overnight | RPL/NPL MBS
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	0
Overnight | CRT securities
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	0
Overnight | Residential whole loans, at fair value
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	0
Overnight | Term Notes Backed by MSR-Related Collateral
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	0
Overnight | Other
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	0
Overnight | Repurchase agreements
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	$ 0
Weighted Average Interest Rate	0.00%
Within 30 Days | Agency MBS
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	$ 2,152,612
Within 30 Days | Non-Agency MBS
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	1,402,625
Within 30 Days | RPL/NPL MBS
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	1,081,192
Within 30 Days | CRT securities
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	385,597
Within 30 Days | Residential whole loans, at fair value
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	911,445
Within 30 Days | Term Notes Backed by MSR-Related Collateral
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	342,227
Within 30 Days | Other
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	5,850
Within 30 Days | Repurchase agreements
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	$ 6,281,548
Weighted Average Interest Rate	3.31%
Over 30 Days to 3 Months | Agency MBS
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	$ 231,745
Over 30 Days to 3 Months | Non-Agency MBS
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	44,960
Over 30 Days to 3 Months | RPL/NPL MBS
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	3,340
Over 30 Days to 3 Months | CRT securities
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	5,989
Over 30 Days to 3 Months | Residential whole loans, at fair value
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	198,665
Over 30 Days to 3 Months | Term Notes Backed by MSR-Related Collateral
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	131,900
Over 30 Days to 3 Months | Other
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	0
Over 30 Days to 3 Months | Repurchase agreements
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	$ 616,599
Weighted Average Interest Rate	3.41%
Over 3 Months to 12 Months | Agency MBS
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	$ 0
Over 3 Months to 12 Months | Non-Agency MBS
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	0
Over 3 Months to 12 Months | RPL/NPL MBS
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	0
Over 3 Months to 12 Months | CRT securities
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	0
Over 3 Months to 12 Months | Residential whole loans, at fair value
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	910,398
Over 3 Months to 12 Months | Term Notes Backed by MSR-Related Collateral
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	0
Over 3 Months to 12 Months | Other
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	70,569
Over 3 Months to 12 Months | Repurchase agreements
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	$ 980,967
Weighted Average Interest Rate	4.18%
Over 12 months | Agency MBS
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	$ 0
Over 12 months | Non-Agency MBS
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	0
Over 12 months | RPL/NPL MBS
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	0
Over 12 months | CRT securities
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	0
Over 12 months | Residential whole loans, at fair value
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	0
Over 12 months | Term Notes Backed by MSR-Related Collateral
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	0
Over 12 months | Other
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	0
Over 12 months | Repurchase agreements
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	$ 0
Weighted Average Interest Rate	0.00%

Repurchase Agreements and Oth_7

Repurchase Agreements and Other Advances (Repurchase Agreements Counterparts) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)counterparty	Dec. 31, 2017counterparty
Repurchase Agreement Counterparty [Line Items]
Stockholder equity at risk	5.00%
Counterparties | counterparty	26	31
Goldman Sachs
Repurchase Agreement Counterparty [Line Items]
Amount at risk	$ 319,685
Weighted Average Months to Maturity for Repurchase Agreements	1 month
Percent of Stockholders’ Equity	9.40%
RBC
Repurchase Agreement Counterparty [Line Items]
Amount at risk	$ 251,802
Weighted Average Months to Maturity for Repurchase Agreements	1 month
Percent of Stockholders’ Equity	7.40%
Wells Fargo
Repurchase Agreement Counterparty [Line Items]
Amount at risk	$ 188,901
Weighted Average Months to Maturity for Repurchase Agreements	2 months
Percent of Stockholders’ Equity	5.50%
Barclay's Bank
Repurchase Agreement Counterparty [Line Items]
Amount at risk	$ 174,998
Weighted Average Months to Maturity for Repurchase Agreements	4 months
Percent of Stockholders’ Equity	5.10%
Goldman Sachs Lending Partners
Repurchase Agreement Counterparty [Line Items]
Amount at risk	$ 190,400
Goldman Sachs Bank USA
Repurchase Agreement Counterparty [Line Items]
Amount at risk	129,300
RBC Barbados
Repurchase Agreement Counterparty [Line Items]
Amount at risk	248,400
RBC Capital Markets LLC
Repurchase Agreement Counterparty [Line Items]
Amount at risk	3,400
Wells Fargo Bank
Repurchase Agreement Counterparty [Line Items]
Amount at risk	187,600
Wells Fargo Securities LLC
Repurchase Agreement Counterparty [Line Items]
Amount at risk	$ 1,300

Collateral Positions (Collatera

Collateral Positions (Collateral Pledged and Held) (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Fair value pledged as collateral	$ 9,400	$ 8,100
Accrued interest on pledged assets	$ 33.1	19.6
Legacy Non-Agency MBS | Repurchase agreements
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Non-Agency MBS pledged as collateral in connection with contemporaneous repurchase and reverse repurchase agreements entered into with a single counterparty		688.1
U.S. Treasury securities | Reverse Repurchase Agreements
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Collateral Held		$ 504.1

Offsetting Assets and Liabili_2

Offsetting Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Offsetting [Abstract]
Fair value of securities pledged against the repurchase agreements	$ 9,400	$ 8,100
Fair value of securities pledged against the swaps	$ 2.7	$ 21.8

Other Liabilities (Details)

Other Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Other Liabilities [Abstract]
Securitized debt	$ 684,420	$ 363,944
Obligation to return securities held as collateral, at fair value	0	504,062
Senior Notes	96,816	96,773
Dividends and dividend equivalents declared and unpaid	90,198	79,771	$ 74,657
Accrued interest payable	16,280	12,263
Payable for unsettled residential whole loans purchases	211,129	0
Accrued expenses and other	26,296	21,584
Total Other Liabilities	$ 1,125,139	$ 1,078,397

Other Liabilities (Senior Notes

Other Liabilities (Senior Notes) (Details) - Senior Notes - USD ($)	Apr. 11, 2012	Dec. 31, 2017	Dec. 31, 2018
Debt Instrument [Line Items]
Proceeds from issuance of debt	$ 100,000,000
Proceed from senior notes net of offering expenses and underwriting discount	$ 96,600,000
Stated interest rate			8.00%
Effective interest rate			8.31%
Redemption price as percentage of principal amount		100.00%

Commitments and Contingencies_2

Commitments and Contingencies (Lease Commitments) (Details)	12 Months Ended
	Dec. 31, 2018USD ($)lease	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)
Lease Commitments
Number of operating leases | lease	2
Rent expense	$ 2,700,000	$ 2,700,000	$ 2,500,000
Corporate headquarters
Lease Commitments
Aggregate annual lease payments	2,700,000
Irrevocable standby letter of credit provided to landlord	785,000
Off-site back-up facility
Lease Commitments
Aggregate annual lease payments	$ 32,000
New Corporate Headquarters Location
Lease Commitments
Additional space	50.00%
Term of lease	15 years
Renewal term	5 years
Future rent payments for new office location	$ 4,600,000

Commitments and Contingencies_3

Commitments and Contingencies (Minimum Payments) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)
Commitments and Contingencies Disclosure [Abstract]
2,019	$ 2,553
2,020	2,553
2,021	1,292
2,022	0
2,023	0
Thereafter	0
Total	$ 6,398
Grace period for payments on new space	14 months

Commitments and Contingencies_4

Commitments and Contingencies (Representations and Warranties in Connection with Loan Securitization Transactions) (Details)	Dec. 31, 2018USD ($)
Commitments and Contingencies Disclosure [Abstract]
Allowance for repurchased loans	$ 0

Commitments and Contingencies_5

Commitments and Contingencies (Corporate Loans) (Details) - Corporate Loan - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Other Commitments [Line Items]
Commitment to lend	$ 100		$ 130
Amount drawn	$ 73.3	$ 111.2

Commitments and Contingencies_6

Commitments and Contingencies (Rehabilitation Loan Commitments) (Details) $ in Millions	Dec. 31, 2018USD ($)
Commitments and Contingencies Disclosure [Abstract]
Unfunded commitment for rehabilitation loans	$ 49.8

Commitments and Contingencies_7

Commitments and Contingencies (Residential Whole Loan Purchase Commitments) (Details) $ in Millions	Dec. 31, 2018USD ($)
Other Commitments [Line Items]
Other loans held at carrying value excluded	$ 211.1
Other residential whole loans
Other Commitments [Line Items]
Other loans held at carrying value excluded	16.4
Residential whole loans
Other Commitments [Line Items]
Excluded amount, unsettled purchases, residential whole loans, at fair value	$ 194.7

Stockholders' Equity (Details)

Stockholders' Equity (Details) $ / shares in Units, $ in Thousands	Dec. 12, 2018$ / shares	Nov. 26, 2018$ / shares	Sep. 13, 2018$ / shares	Aug. 20, 2018$ / shares	Jun. 07, 2018$ / shares	May 17, 2018$ / shares	Mar. 07, 2018$ / shares	Feb. 20, 2018$ / shares	Dec. 17, 2017$ / shares	Nov. 17, 2017$ / shares	Sep. 14, 2017$ / shares	Aug. 10, 2017$ / shares	Jun. 12, 2017$ / shares	May 16, 2017$ / shares	Mar. 08, 2017$ / shares	Feb. 17, 2017$ / shares	Dec. 14, 2016$ / shares	Nov. 22, 2016$ / shares	Sep. 15, 2016$ / shares	Aug. 12, 2016$ / shares	Jun. 14, 2016$ / shares	May 18, 2016$ / shares	Mar. 11, 2016$ / shares	Feb. 12, 2016$ / shares	Apr. 15, 2013$ / sharesshares	Dec. 31, 2018USD ($)quarterdirector$ / sharesshares	Dec. 31, 2017USD ($)$ / sharesshares	Dec. 31, 2016USD ($)$ / sharesshares	Dec. 31, 2017USD ($)$ / sharesshares	Dec. 31, 2013shares	Aug. 08, 2013shares	Aug. 31, 2005shares
Dividends on Preferred Stock
Preferred stock, shares issued (in shares)																										8,000,000	8,000,000		8,000,000
Preferred stock, dividend rate																									7.50%	7.50%	7.50%
Preferred stock, par value (in dollars per share) | $ / shares																										$ 0.01	$ 0.01		$ 0.01
Maximum quarters without dividends to get voting rights, in quarters | quarter																										6
Minimum percentage of preferred shareholders required for approval																										66.67%
Dividends on Common Stock
Common stock, cash dividends declared (in dollars per share) | $ / shares	$ 0.20		$ 0.20		$ 0.20		$ 0.20		$ 0.20		$ 0.20		$ 0.20		$ 0.20		$ 0.20		$ 0.20		$ 0.20		$ 0.20
Dividends payable | $																										$ 90,198	$ 79,771	$ 74,657	$ 79,771
Residential whole loans, at fair value | $																										$ 1,665,978	$ 1,325,115		$ 1,325,115
Common stock dividends, capital gains | $ / shares																										$ 0.1290	$ 0.0831	$ 0.0361	$ 0.0831
Common stock, shares authorized (in shares)																										886,950,000	886,950,000		886,950,000
Number of shares authorized to be repurchased under the Repurchase Program (in shares)																														10,000,000		4,000,000
Number of shares repurchased through the Company's publicly announced stock repurchase program (in shares)																										0
Number of remaining shares authorized to be repurchased under the Repurchase Program (in shares)																										6,616,355
DRSPP
Dividends on Common Stock
Common stock, shares authorized (in shares)																															15,000,000
Shares of common stock authorized and available for issuance																										11,800,000
Shares issued (in shares)																										379,903	2,293,192	653,793	34,055,880
Net proceeds | $																										$ 2,800	$ 18,500	$ 1,200	$ 284,200
Series B Preferred Stock
Dividends on Preferred Stock
Preferred stock, cash dividends declared (in dollars per share) | $ / shares		$ 0.46875		$ 0.46875		$ 0.46875		$ 0.46875		$ 0.46875		$ 0.46875		$ 0.46875		$ 0.46875		$ 0.46875		$ 0.46875		$ 0.46875		$ 0.46875
Preferred Stock | Series B Preferred Stock
Dividends on Preferred Stock
Preferred stock, shares issued (in shares)																									8,000,000
Preferred stock, dividend rate																									7.50%	7.50%	7.50%	7.50%
Preferred stock, par value (in dollars per share) | $ / shares																									$ 0.01
Preferred stock, liquidation preference (in dollars per share) | $ / shares																									25	$ 25	$ 25	$ 25	$ 25
Preferred stock, redemption price (in dollars per share) | $ / shares																									$ 25
Number of additional directors that can be elected by preferred stock holders | director																										2

Stockholders' Equity (AOCI) (De

Stockholders' Equity (AOCI) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
AOCI Attributable to Parent, Net of Tax [Roll Forward]
OCI before reclassifications	$ (136,097)	$ 75,281	$ 95,238
Amounts reclassified from AOCI	(52,839)	(39,739)	(37,407)
Other Comprehensive Income/(Loss)	(188,936)	35,542	57,831
Net Unrealized Gain/(Loss) on AFS Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	620,648	620,403	585,250
OCI before reclassifications	(150,642)	39,984	72,560
Amounts reclassified from AOCI	(52,839)	(39,739)	(37,407)
Other Comprehensive Income/(Loss)	(203,481)	245	35,153
Balance at end of period	417,167	620,648	620,403
Net Gain/(Loss) on Swaps
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(11,424)	(46,721)	(69,399)
OCI before reclassifications	14,545	35,297	22,678
Amounts reclassified from AOCI	0	0	0
Other Comprehensive Income/(Loss)	14,545	35,297	22,678
Balance at end of period	3,121	(11,424)	(46,721)
Accumulated Other Comprehensive Income
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	609,224	573,682	515,851
Balance at end of period	$ 420,288	$ 609,224	$ 573,682

Stockholders' Equity (Public Of

Stockholders' Equity (Public Offering) (Details) - USD ($) $ / shares in Units, $ in Thousands	Aug. 07, 2018	May 10, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Subsidiary, Sale of Stock [Line Items]
Payments made for costs related to common stock issuances			$ 329	$ 415	$ 0
Public Offering
Subsidiary, Sale of Stock [Line Items]
Shares Issued	50,875,000	23,000,000
Gross Proceeds Per Share	$ 7.78	$ 7.85
Gross Proceeds	$ 395,807	$ 180,550
Shares issued (in shares)	875,000
Payments made for costs related to common stock issuances	$ 6,400	$ 2,300

Stockholders' Equity (AOCI Recl

Stockholders' Equity (AOCI Reclassifications) (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net realized gain on sales of residential mortgage securities									$ 61,307,000	$ 39,577,000	$ 35,837,000
Net Income Available to Common Stock and Participating Securities	$ 57,129,000	$ 83,382,000	$ 66,645,000	$ 79,645,000	$ 96,843,000	$ 60,055,000	$ 76,185,000	$ 74,310,000	286,801,000	307,393,000	297,668,000
Total reclassifications for period									(52,839,000)	(39,739,000)	(37,407,000)
Accumulated Other Comprehensive Income/(Loss)
Unrealized losses recorded in AOCI on securities for which Other-than-temporary impairments had been recognized in earnings in prior periods	$ 224,000				$ 0				224,000	0
Amounts Reclassified from AOCI | Accumulated Net Investment Gain (Loss) Including Portion Attributable to Noncontrolling Interest [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net realized gain on sales of residential mortgage securities									(51,580,000)	(38,707,000)	(36,922,000)
OTTI recognized in earnings									(1,259,000)	(1,032,000)	(485,000)
Net Income Available to Common Stock and Participating Securities									$ (52,839,000)	$ (39,739,000)	$ (37,407,000)

EPS Calculation (Details)

EPS Calculation (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Numerator:
Net income	$ 60,879	$ 87,132	$ 70,395	$ 83,395	$ 100,593	$ 63,805	$ 79,935	$ 78,060	$ 301,801	$ 322,393	$ 312,668
Dividends declared on preferred stock									(15,000)	(15,000)	(15,000)
Dividends, dividend equivalents and undistributed earnings allocated to participating securities									(1,864)	(1,708)	(1,628)
Net income to common stockholders - basic and diluted									$ 284,937	$ 305,685	$ 296,040
Denominator:
Weighted average common shares for basic and diluted earnings per share									418,934	388,357	371,122
Earnings per Common Share - Basic and Diluted	$ 0.13	$ 0.19	$ 0.17	$ 0.20	$ 0.24	$ 0.15	$ 0.20	$ 0.20	$ 0.68	$ 0.79	$ 0.80
Anti-dilutive securities excluded from diluted earnings per share calculations (in shares)									2,100
Restricted Stock Units
Denominator:
Weighted average grant date fair value (in dollars per share)	$ 6.78								$ 6.78

Equity Compensation, Employme_3

Equity Compensation, Employment Agreements and Other Benefit Plans (Narrative) (Details)	12 Months Ended
	Dec. 31, 2018shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum shares authorized for grant (in shares)	12,000,000
Shares available for grant	5,200,000
Equity Compensation Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum number of common shares that can be granted to participant in any one year (in shares)	1,500,000
Period during which a participant can be awarded the maximum number of shares allowable under the Plan	1 year
Maximum percentage of common shares that can be owned or deemed to be owned by a participant (more than)	9.80%

Equity Compensation, Employme_4

Equity Compensation, Employment Agreements and Other Benefit Plans (Restricted Stock Units) (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
RSUs With Service Condition
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
Outstanding at beginning of year (in shares)	1,025,028	1,194,299	1,138,930
Outstanding at beginning of year (in dollars per share)	$ 7.67	$ 7.38	$ 7.71
Granted (in shares)	428,802	447,695	420,695
Granted (in dollars per share)	$ 7.65	$ 7.96	$ 6.81
Settled (in shares)	(237,384)	(616,966)	(360,326)
Settled (in dollars per share)	$ 8.17	$ 7.32	$ 7.75
Cancelled, forfeited or expired (in shares)	(10,000)	0	(5,000)
Cancelled/forfeited (in dollars per share)	$ 7.23	$ 0	$ 7.32
Outstanding at end of year (in shares)	1,206,446	1,025,028	1,194,299
Outstanding at end of year (in dollars per share)	$ 7.57	$ 7.67	$ 7.38
RSUs vested but not settled at end of year (in shares)	708,946	586,419	617,518
RSUs vested but not settled at end of year (in dollars per share)	$ 7.47	$ 7.98	$ 7.45
RSUs unvested at end of year	497,500	438,609	576,781
Weighted average grant date fair value (in dollars per share)	$ 7.71	$ 7.25	$ 7.30
RSUs With Market and Service Conditions
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
Outstanding at beginning of year (in shares)	1,021,250	863,800	736,800
Outstanding at beginning of year (in dollars per share)	$ 5.80	$ 5.45	$ 5.66
Granted (in shares)	415,000	451,250	307,500
Granted (in dollars per share)	$ 6.91	$ 6.48	$ 4.81
Settled (in shares)	(275,000)	(293,800)	(175,500)
Settled (in dollars per share)	$ 5.73	$ 5.83	$ 5.21
Cancelled, forfeited or expired (in shares)	(10,000)	0	(5,000)
Cancelled/forfeited (in dollars per share)	$ 5.64	$ 0	$ 5.27
Outstanding at end of year (in shares)	1,151,250	1,021,250	863,800
Outstanding at end of year (in dollars per share)	$ 6.21	$ 5.80	$ 5.45
RSUs vested but not settled at end of year (in shares)	290,000	275,000	293,800
RSUs vested but not settled at end of year (in dollars per share)	$ 4.81	$ 5.73	$ 5.83
RSUs unvested at end of year	861,250	746,250	570,000
Weighted average grant date fair value (in dollars per share)	$ 6.69	$ 5.82	$ 5.25
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$ 5.2	$ 4.1
Period for recognizing unrecognized compensation cost	1 year 8 months 1 day
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
Outstanding at beginning of year (in shares)	2,046,278	2,058,099	1,875,730
Outstanding at beginning of year (in dollars per share)	$ 6.73	$ 6.57	$ 6.90
Granted (in shares)	843,802	898,945	728,195
Granted (in dollars per share)	$ 7.29	$ 7.22	$ 5.96
Settled (in shares)	(512,384)	(910,766)	(535,826)
Settled (in dollars per share)	$ 6.86	$ 6.84	$ 6.92
Cancelled, forfeited or expired (in shares)	(20,000)	0	(10,000)
Cancelled/forfeited (in dollars per share)	$ 6.44	$ 0	$ 6.29
Outstanding at end of year (in shares)	2,357,696	2,046,278	2,058,099
Outstanding at end of year (in dollars per share)	$ 6.90	$ 6.73	$ 6.57
RSUs vested but not settled at end of year (in shares)	998,946	861,419	911,318
RSUs vested but not settled at end of year (in dollars per share)	$ 6.70	$ 7.26	$ 6.93
RSUs unvested at end of year	1,358,750	1,184,859	1,146,781
Weighted average grant date fair value (in dollars per share)	$ 7.06	$ 6.35	$ 6.28
RSUs with Service Condition and both Service and Market Conditions
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
Granted (in shares)	692,500	758,750	615,000
Weighted average volatility estimated	17.00%	15.00%	17.00%
Expected term	3 years	3 years	3 years
Weighted average risk-free rate	2.36%	1.46%	1.20%
Estimated annual dividend yield			11.00%
RSUs with Service Condition, weighted average grant date fair value based on share closing price
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
Granted (in shares)	151,302	140,195	113,195
Share price (dollars per share)	$ 7.70	$ 8.31	$ 7.20

Equity Compensation, Employme_5

Equity Compensation, Employment Agreements and Other Benefit Plans (Restricted Stock) (Details) - Restricted Stock - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total fair value of stock vested	$ 3	$ 2	$ 4.3
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
Outstanding at beginning of year (in shares)	0	28,968	110,920
Outstanding at beginning of year (in dollars per share)	$ 0	$ 7.12	$ 7.41
Granted (in shares)	450,193	214,859	487,216
Granted (in dollars per share)	$ 6.74	$ 8.06	$ 7.66
Vested (in shares)	(450,193)	(243,827)	(567,851)
Vested (in dollars per share)	$ 6.74	$ 7.95	$ 7.64
Cancelled, forfeited or expired (in shares)	0	0	(1,317)
Cancelled/forfeited (in dollars per share)	$ 0	$ 0	$ 7.12
Outstanding at end of year (in shares)	0	0	28,968
Outstanding at end of year (in dollars per share)	$ 0	$ 0	$ 7.12

Equity Compensation, Employme_6

Equity Compensation, Employment Agreements and Other Benefit Plans (Dividend Equivalents) (Details) - DER - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payments attributable to DERs	$ 0	$ 0	$ 5,000
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
Outstanding at beginning of year (in shares)		0	8,215
Granted (in shares)			0
Cancelled, forfeited or expired (in shares)			(8,215)
Outstanding at end of year (in shares)	0		0
Granted (in dollars per share)	$ 2.77
Weighted average volatility estimated	31.00%
Expected term	6 years
Weighted average risk-free rate	2.23%
Estimated annual dividend yield	13.00%

Equity Compensation, Employme_7

Equity Compensation, Employment Agreements and Other Benefit Plans (Expense Allocation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expense related to equity-based compensation instruments	$ 8,007	$ 8,033	$ 9,162
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expense related to equity-based compensation instruments	3,033	1,935	4,326
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expense related to equity-based compensation instruments	4,974	6,098	4,792
DER
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expense related to equity-based compensation instruments	0	$ 0	$ 44
Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expense related to equity-based compensation instruments	$ 900

Equity Compensation, Employme_8

Equity Compensation, Employment Agreements and Other Benefit Plans (Employment Agreements) (Details)	Dec. 31, 2018officer
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Number of officers having employment agreements with the company	4

Equity Compensation, Employme_9

Equity Compensation, Employment Agreements and Other Benefit Plans (Deferred Compensation Plans) (Details) - Deferred Compensation Plans - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Deferrable compensation by the employee, maximum	100.00%
Expenses related to Deferred Plans	$ (165)	$ 171	$ 231
Cash distributed to the participants	124	0	122
Undistributed Income Deferred	2,263	1,688
Liability Under Deferred Plans	2,417	2,056
Non-employee directors
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Expenses related to Deferred Plans	(165)	171	$ 231
Undistributed Income Deferred	2,263	1,688
Liability Under Deferred Plans	$ 2,417	$ 2,056

Equity Compensation, Employm_10

Equity Compensation, Employment Agreements and Other Benefit Plans (Savings Plan) (Details) - Savings Plan - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employer contribution percentage on first 3 percent of eligible compensation deferred by employees	100.00%
Percentage of eligible compensation deferred by employees qualifying for 100 percent matching contribution	3.00%
Employer contribution percentage on next 2 percent of eligible compensation deferred by employees	50.00%
Percentage of eligible compensation deferred by employees qualifying for 50 percent matching contribution	2.00%
Percentage of employer matching contributions that vest immediately	100.00%
Expenses for matching contributions	$ 371	$ 363	$ 359

Fair Value of Financial Instr_3

Fair Value of Financial Instruments (Fair Value Hierarchy) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	$ 6,509,333	$ 7,023,050
Residential whole loans, at fair value	1,665,978	1,325,115
Securities obtained and pledged as collateral	0	504,062
Total assets carried at fair value	8,713,810	9,234,031
Obligation to return securities held as collateral, at fair value	0	504,062
Total liabilities carried at fair value	0	504,062
Agency MBS
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	2,698,213	2,824,681
Non-Agency MBS
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	3,318,299	3,533,966
CRT securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	492,821	664,403
Residential whole loans, at fair value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Residential whole loans, at fair value	1,665,978	1,325,115
Term notes backed by MSR-related collateral
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Term notes backed by MSR-related collateral	538,499	381,804
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities obtained and pledged as collateral	0	504,062
Total assets carried at fair value	0	504,062
Obligation to return securities held as collateral, at fair value	0	504,062
Total liabilities carried at fair value	0	504,062
Level 1 | Agency MBS
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	0	0
Level 1 | Non-Agency MBS
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	0	0
Level 1 | CRT securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	0	0
Level 1 | Residential whole loans, at fair value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Residential whole loans, at fair value	0	0
Level 1 | Term notes backed by MSR-related collateral
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Term notes backed by MSR-related collateral	0	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities obtained and pledged as collateral	0	0
Total assets carried at fair value	6,509,333	7,023,050
Obligation to return securities held as collateral, at fair value	0	0
Total liabilities carried at fair value	0	0
Level 2 | Agency MBS
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	2,698,213	2,824,681
Level 2 | Non-Agency MBS
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	3,318,299	3,533,966
Level 2 | CRT securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	492,821	664,403
Level 2 | Residential whole loans, at fair value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Residential whole loans, at fair value	0	0
Level 2 | Term notes backed by MSR-related collateral
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Term notes backed by MSR-related collateral	0	0
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities obtained and pledged as collateral	0	0
Total assets carried at fair value	2,204,477	1,706,919
Obligation to return securities held as collateral, at fair value	0	0
Total liabilities carried at fair value	0	0
Level 3 | Agency MBS
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	0	0
Level 3 | Non-Agency MBS
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	0	0
Level 3 | CRT securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	0	0
Level 3 | Residential whole loans, at fair value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Residential whole loans, at fair value	1,665,978	1,325,115
Level 3 | Term notes backed by MSR-related collateral
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Term notes backed by MSR-related collateral	$ 538,499	$ 381,804

Fair Value of Financial Instr_4

Fair Value of Financial Instruments (Level 3 Assets) (Details) - Recurring basis - Level 3 - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Residential whole loans, at fair value
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period	$ 1,325,115	$ 814,682
Purchases	500,004	683,735
Changes in unrealized gain/losses	36,725	33,617
Collection of principal	(199,203)	(87,072)
Repurchases	(1,807)	(2,716)
Transfer to REO	(189,571)	(117,131)
Balance at end of period	1,471,263	1,325,115
Term Notes Backed by MSR-Related Collateral
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period	381,804	0
Purchases	548,404	381,000
Collection of principal	(390,898)	(140,980)
Changes in unrealized gain/losses	(811)	804
Transfers from Level 2 to Level 3	0	140,980
Balance at end of period	$ 538,499	$ 381,804

Fair Value of Financial Instr_5

Fair Value of Financial Instruments (Fair Value Methodology) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Residential whole loans, at fair value	$ 1,383,502	$ 951,811
Loan purchases excluded from Level 3 fair value methodology disclosures	282,500	373,300
Discounted cash flow
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Residential whole loans, at fair value	700,250	358,871
Liquidation model
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Residential whole loans, at fair value	683,252	592,940
Residential loans, simple average, amount	$ 400	$ 336
Residential whole loans, at fair value | Level 3 | Liquidation model | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Annual change in home prices	12.20%	8.80%
Liquidation timeline (in years)	4 years 6 months	4 years 6 months
Current value of underlying properties	$ 7,950	$ 9,900
Residential whole loans, at fair value | Level 3 | Liquidation model | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Annual change in home prices	(0.50%)	(8.00%)
Liquidation timeline (in years)	1 month 6 days	1 month 6 days
Current value of underlying properties	$ 2	$ 0
Discount rate | Residential whole loans, at fair value | Level 3 | Discounted cash flow | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.080	0.130
Discount rate | Residential whole loans, at fair value | Level 3 | Discounted cash flow | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.045	0.045
Discount rate | Residential whole loans, at fair value | Level 3 | Discounted cash flow | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.052	0.055
Discount rate | Residential whole loans, at fair value | Level 3 | Liquidation model | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.500	0.500
Discount rate | Residential whole loans, at fair value | Level 3 | Liquidation model | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.061	0.061
Discount rate | Residential whole loans, at fair value | Level 3 | Liquidation model | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.080	0.080
Prepayment rate | Residential whole loans, at fair value | Level 3 | Discounted cash flow | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.159	0.151
Prepayment rate | Residential whole loans, at fair value | Level 3 | Discounted cash flow | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.009	0.0115
Prepayment rate | Residential whole loans, at fair value | Level 3 | Discounted cash flow | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.048	0.041
Prepayment rate | Residential whole loans, at fair value | Level 3 | Liquidation model | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Annual change in home prices	3.50%	2.50%
Default rate | Residential whole loans, at fair value | Level 3 | Discounted cash flow | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.241	0.065
Default rate | Residential whole loans, at fair value | Level 3 | Discounted cash flow | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0	0
Default rate | Residential whole loans, at fair value | Level 3 | Discounted cash flow | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.041	0.029
Default rate | Residential whole loans, at fair value | Level 3 | Liquidation model | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liquidation timeline (in years)	1 year 9 months 18 days	1 year 7 months 6 days
Loss severity | Residential whole loans, at fair value | Level 3 | Discounted cash flow | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	1	1
Loss severity | Residential whole loans, at fair value | Level 3 | Discounted cash flow | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0	0
Loss severity | Residential whole loans, at fair value | Level 3 | Discounted cash flow | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.129	0.138
Loss severity | Residential whole loans, at fair value | Level 3 | Liquidation model | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Current value of underlying properties	$ 802	$ 772

Fair Value of Financial Instr_6

Fair Value of Financial Instruments (Carry Value vs Fair Value) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale Securities	$ 6,509,333	$ 7,023,050
MSR related assets	611,807	492,080
Residential whole loans, at carrying value	3,016,715	908,516
Residential whole loans, at fair value	1,665,978	1,325,115
Securities obtained and pledged as collateral	0	504,062
Restricted cash	36,744	13,986
Repurchase agreements	7,879,087	6,614,701
Securitized debt	684,420	363,944
Obligation to return securities held as collateral, at fair value	0	504,062
Senior Notes	96,816	96,773
Carrying value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
MSR related assets	611,807	492,080
Securities obtained and pledged as collateral	0	504,062
Cash and cash equivalents	51,965	449,757
Restricted cash	36,744	13,986
Repurchase agreements	7,879,087	6,614,701
Securitized debt	684,420	363,944
Obligation to return securities held as collateral, at fair value	0	504,062
Senior Notes	96,816	96,773
Estimated fair value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
MSR related assets	611,807	493,026
Securities obtained and pledged as collateral	0	504,062
Cash and cash equivalents	51,965	449,757
Restricted cash	36,744	13,986
Repurchase agreements	7,896,672	6,623,255
Securitized debt	680,209	366,109
Obligation to return securities held as collateral, at fair value	0	504,062
Senior Notes	99,951	103,729
Agency MBS
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale Securities	2,698,213	2,824,681
Repurchase agreements	2,384,357	2,501,340
Agency MBS | Carrying value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale Securities	2,698,213	2,824,681
Agency MBS | Estimated fair value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale Securities	2,698,213	2,824,681
Non-Agency MBS
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale Securities	3,318,299	3,533,966
Repurchase agreements	1,447,585	1,256,033
Non-Agency MBS | Carrying value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale Securities	3,318,299	3,533,966
Non-Agency MBS | Estimated fair value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale Securities	3,318,299	3,533,966
CRT securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale Securities	492,821	664,403
Repurchase agreements	391,586	459,058
CRT securities | Carrying value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale Securities	492,821	664,403
CRT securities | Estimated fair value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale Securities	492,821	664,403
Residential whole loans, at fair value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Residential whole loans, at fair value	1,665,978	1,325,115
Repurchase agreements	2,020,508	1,043,747
Residential whole loans, at fair value | Carrying value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Residential whole loans, at carrying value	3,016,715	908,516
Residential whole loans, at fair value	1,665,978	1,325,115
Residential whole loans, at fair value | Estimated fair value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Residential whole loans, at carrying value	3,104,401	988,688
Residential whole loans, at fair value	$ 1,665,978	$ 1,325,115

Fair Value of Financial Instr_7

Fair Value of Financial Instruments (Narrative) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Fair Value Disclosures [Abstract]
Real estate owned	$ 249,413	$ 152,356	$ 80,503
Other real estate, fair value	$ 273,400	$ 175,800

Use of Special Purpose Entiti_3

Use of Special Purpose Entities and Variable Interest Entities (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Variable Interest Entity [Line Items]
Residential whole loans, at fair value	$ 1,665,978,000	$ 1,325,115,000
Securitized debt	684,420,000	363,944,000
Residential whole loans	4,700,000,000	2,200,000,000
Residential whole loans, at carrying value	3,016,715,000	908,516,000
Real estate owned	249,413,000	152,356,000	$ 80,503,000
Other real estate, fair value	273,400,000	175,800,000
Residential whole loans
Variable Interest Entity [Line Items]
Unpaid principal balance residential whole loans sold	666,800,000
Asset-backed Securities, Securitized Loans and Receivables
Variable Interest Entity [Line Items]
Unpaid principal balance residential whole loans sold	$ 1,290,029,000	$ 620,924,000
Weighted average interest rate	3.66%	3.14%
Proceeds from issuance of debt	$ 802,815,000	$ 382,845,000
Residential whole loans, at carrying value	209,400,000	183,200,000
Residential whole loans, at fair value	694,700,000	289,300,000
Securitized debt	684,420,000	363,944,000
Asset-backed Securities, Securitized Loans and Receivables | Trust, Ownership in Residential Whole Loans
Variable Interest Entity [Line Items]
Proceeds from issuance of debt	420,000,000
Bonds | Asset-backed Securities, Securitized Loans and Receivables
Variable Interest Entity [Line Items]
Face amount	802,817,000	382,847,000
Bonds | Asset-backed Securities, Securitized Loans and Receivables | Trust, Ownership in Residential Whole Loans
Variable Interest Entity [Line Items]
Face amount	$ 419,970,000
Weighted average interest rate	4.04%
Non Rated Certificates | Asset-backed Securities, Securitized Loans and Receivables | Trust, Ownership in Residential Whole Loans
Variable Interest Entity [Line Items]
Face amount	$ 148,100,000
Other Assets | Asset-backed Securities, Securitized Loans and Receivables
Variable Interest Entity [Line Items]
Real estate owned at fair value	$ 79,000,000	$ 5,500,000

Use of Special Purpose Entiti_4

Use of Special Purpose Entities and Variable Interest Entities (Loan Securitization Transactions) (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Variable Interest Entity [Line Items]
Securitized debt	$ 363,944	$ 684,420	$ 363,944
Asset-backed Securities, Securitized Loans and Receivables
Variable Interest Entity [Line Items]
Unpaid principal balance residential whole loans sold	620,924	1,290,029	620,924
Securitized debt	$ 363,944	$ 684,420	$ 363,944
Weighted average interest rate	3.14%	3.66%	3.14%
Weighted average contractual maturity of Senior Bonds		31 years	32 years
Cash received		$ 802,815	$ 382,845
Debt issuance cost	$ 2,300	3,800	$ 2,300
Spread			300.00%
Debt instrument, coupon step-up period	36 months
Senior Notes | Asset-backed Securities, Securitized Loans and Receivables
Variable Interest Entity [Line Items]
Face amount	$ 382,847	802,817	$ 382,847
Proceeds from senior bonds sold with step-up feature		582,800	233,700
Rated and Non-Rated Certificates | Asset-backed Securities, Securitized Loans and Receivables
Variable Interest Entity [Line Items]
Face amount	$ 127,001	$ 275,174	$ 127,001

Summary of Quarterly Results _3

Summary of Quarterly Results of Operations (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Interest income	$ 132,744	$ 117,432	$ 101,747	$ 103,752	$ 100,901	$ 105,133	$ 110,157	$ 117,257	$ 455,675	$ 433,448	$ 457,450
Interest expense	(70,944)	(58,878)	(51,810)	(50,554)	(48,495)	(49,275)	(49,022)	(50,349)	(232,186)	(197,141)	(193,355)
Net Interest Income	61,800	58,554	49,937	53,198	52,406	55,858	61,135	66,908	223,489	236,307	264,095
Net gain on residential whole loans measured at fair value through earnings	31,736	34,942	32,443	38,498	41,385	18,679	16,208	13,773	137,619	90,045	62,605
Net realized gain on sales of residential mortgage securities	28,646	16,415	7,429	8,817	9,047	14,933	5,889	9,708
Other income	(39,432)	(2,998)	1,134	345	14,553	(4,515)	14,229	4,098
Operating and other expense	(21,871)	(19,781)	(20,548)	(17,463)	(16,798)	(21,150)	(17,526)	(16,427)	(79,663)	(71,901)	(59,984)
Net Income	60,879	87,132	70,395	83,395	100,593	63,805	79,935	78,060	301,801	322,393	312,668
Preferred stock dividends	(3,750)	(3,750)	(3,750)	(3,750)	(3,750)	(3,750)	(3,750)	(3,750)	(15,000)	(15,000)	(15,000)
Net Income Available to Common Stock and Participating Securities	$ 57,129	$ 83,382	$ 66,645	$ 79,645	$ 96,843	$ 60,055	$ 76,185	$ 74,310	$ 286,801	$ 307,393	$ 297,668
Earnings per Common Share - Basic and Diluted (usd per share)	$ 0.13	$ 0.19	$ 0.17	$ 0.20	$ 0.24	$ 0.15	$ 0.20	$ 0.20	$ 0.68	$ 0.79	$ 0.80

Schedule IV - Mortgage Loans _2

Schedule IV - Mortgage Loans on Real Estate (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)loan
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Other loans held at carrying value excluded	$ 211,100
SEC Schedule, 12-29, Real Estate Companies, Investment in Movement in Mortgage Loans on Real Estate [Roll Forward]
Residential whole loans, at fair value, beginning balance	1,325,115
Residential whole loans, at fair value, ending balance	$ 1,665,978
Residential whole loans, at fair value
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number (loans) | loan	17,826
Balance Sheet Reported Amount	$ 4,471,563
Principal Amount of Loans Subject to Delinquent Principal or Interest	1,093,412
Tax basis of loans	$ 4,300,000
Residential whole loans, at fair value | Carrying value
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number (loans) | loan	11,112
Balance Sheet Reported Amount	$ 3,000,301
Principal Amount of Loans Subject to Delinquent Principal or Interest	122,654
SEC Schedule, 12-29, Real Estate Companies, Investment in Movement in Mortgage Loans on Real Estate [Roll Forward]
Residential whole loans, at carrying value, beginning balance	908,516
Purchases and capitalized advances	2,467,398
Discount accretion	4,741
Cash collections for principal and liquidations	(355,413)
Provision for loan loss	(638)
Repurchases	(1,597)
Transfer to REO	(6,292)
Residential whole loans, at carrying value, ending balance	$ 3,016,715
Residential whole loans, at fair value | Fair value
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number (loans) | loan	6,714
Balance Sheet Reported Amount	$ 1,471,262
Principal Amount of Loans Subject to Delinquent Principal or Interest	970,758
SEC Schedule, 12-29, Real Estate Companies, Investment in Movement in Mortgage Loans on Real Estate [Roll Forward]
Residential whole loans, at fair value, beginning balance	1,325,115
Purchases and capitalized advances	741,113
Cash collections for principal and liquidations	(199,203)
Changes in unrealized gain/losses	36,725
Repurchases	(1,807)
Transfer to REO	(189,571)
Residential whole loans, at fair value, ending balance	$ 1,712,372
Original loan balance $0 - $149,999 | Residential whole loans, at fair value | Carrying value
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number (loans) | loan	3,360
Balance Sheet Reported Amount	$ 272,407
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 16,726
Original loan balance $0 - $149,999 | Residential whole loans, at fair value | Carrying value | Minimum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	0.00%
Original loan balance $0 - $149,999 | Residential whole loans, at fair value | Carrying value | Maximum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	13.08%
Original loan balance $0 - $149,999 | Residential whole loans, at fair value | Fair value
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number (loans) | loan	2,172
Balance Sheet Reported Amount	$ 165,419
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 92,672
Original loan balance $0 - $149,999 | Residential whole loans, at fair value | Fair value | Minimum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	0.00%
Original loan balance $0 - $149,999 | Residential whole loans, at fair value | Fair value | Maximum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	14.99%
Original loan balance $150,000 - $299,999 | Residential whole loans, at fair value | Carrying value
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number (loans) | loan	3,781
Balance Sheet Reported Amount	$ 679,899
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 42,262
Original loan balance $150,000 - $299,999 | Residential whole loans, at fair value | Carrying value | Minimum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	0.00%
Original loan balance $150,000 - $299,999 | Residential whole loans, at fair value | Carrying value | Maximum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	11.00%
Original loan balance $150,000 - $299,999 | Residential whole loans, at fair value | Fair value
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number (loans) | loan	2,280
Balance Sheet Reported Amount	$ 392,509
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 243,609
Original loan balance $150,000 - $299,999 | Residential whole loans, at fair value | Fair value | Minimum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	1.00%
Original loan balance $150,000 - $299,999 | Residential whole loans, at fair value | Fair value | Maximum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	12.38%
Original loan balance $300,000 - $449,999 | Residential whole loans, at fair value | Carrying value
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number (loans) | loan	2,205
Balance Sheet Reported Amount	$ 704,255
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 39,720
Original loan balance $300,000 - $449,999 | Residential whole loans, at fair value | Carrying value | Minimum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	1.30%
Original loan balance $300,000 - $449,999 | Residential whole loans, at fair value | Carrying value | Maximum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	11.13%
Original loan balance $300,000 - $449,999 | Residential whole loans, at fair value | Fair value
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number (loans) | loan	1,515
Balance Sheet Reported Amount	$ 461,389
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 304,731
Original loan balance $300,000 - $449,999 | Residential whole loans, at fair value | Fair value | Minimum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	0.00%
Original loan balance $300,000 - $449,999 | Residential whole loans, at fair value | Fair value | Maximum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	10.80%
Original loan balance greater than $449,999 | Residential whole loans, at fair value | Carrying value
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number (loans) | loan	1,766
Balance Sheet Reported Amount	$ 1,343,740
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 23,946
Original loan balance greater than $449,999 | Residential whole loans, at fair value | Carrying value | Minimum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	1.30%
Original loan balance greater than $449,999 | Residential whole loans, at fair value | Carrying value | Maximum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	9.50%
Original loan balance greater than $449,999 | Residential whole loans, at fair value | Fair value
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number (loans) | loan	747
Balance Sheet Reported Amount	$ 451,945
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 329,746
Original loan balance greater than $449,999 | Residential whole loans, at fair value | Fair value | Minimum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	1.63%
Original loan balance greater than $449,999 | Residential whole loans, at fair value | Fair value | Maximum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	10.20%
Other residential whole loans
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Other loans held at carrying value excluded	$ 16,400
Residential whole loans
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Excluded amount, unsettled purchases, residential whole loans, at fair value	$ 194,700

Uncategorized Items - mfa-20181

Label	Element	Value
Retained Earnings [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ 295,000