Summary of Significant Accounting Policies (Policies)	3 Months Ended
Mar. 31, 2023
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation – On March 9, 2023, the Company effected a one-for-four reverse stock split of its issued, outstanding and authorized shares of common stock (the "Reverse Stock Split"). Accordingly, all common share and per common share data for all periods presented in these condensed consolidated financial statements and notes thereto have been adjusted on a retroactive basis to reflect the impact of the Reverse Stock Split. The accompanying condensed consolidated balance sheet as of December 31, 2022 has been derived from audited financial statements. The accompanying condensed consolidated balance sheet as of March 31, 2023, the accompanying condensed consolidated statements of operations for the three months ended March 31, 2023 and 2022, the accompanying condensed consolidated statements of comprehensive income (loss) for the three months ended March 31, 2023 and 2022, the accompanying condensed consolidated statements of changes in stockholders’ equity for the three months ended March 31, 2023 and 2022 and the accompanying condensed consolidated statements of cash flows for the three months ended March 31, 2023 and 2022 are unaudited. In our opinion, all adjustments (which include only normal recurring adjustments) necessary to present fairly the Company’s financial position, results of operations and cash flows have been made. Certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted in accordance with Article 10 of Regulation S-X and the instructions to Form 10-Q. These condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2022, as filed with the U.S. Securities and Exchange Commission (“SEC”). Accordingly, significant accounting policies and other disclosures have been omitted since such items are disclosed in Note 2 in the audited consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2022. Provided in this section is a summary of additional accounting policies that are significant to, or newly adopted by, the Company for the three months ended March 31, 2023. The results of operations for the three months ended March 31, 2023 are not necessarily indicative of the operating results for the full year. The accompanying condensed consolidated financial statements have been prepared on the accrual basis of accounting in accordance with 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. Management has made significant estimates in several areas, including fair valuation of its residential loans, multi-family loans, certain equity investments, real estate held by Consolidated VIEs and Consolidated SLST CDOs. Although the Company’s estimates contemplate current conditions and how it expects those conditions to change in the future, it is reasonably possible that actual conditions could be different than anticipated in those estimates, which could materially impact the Company’s results of operations and its financial condition.
Reclassifications	Reclassifications – Certain prior period amounts have been reclassified in the accompanying condensed consolidated financial statements to conform to current period presentation. In particular, prior period disclosures have been adjusted for the aforementioned Reverse Stock Split. Additionally, prior period disclosures have been conformed to the current period presentation of interest expense, mortgages payable on real estate. Starting in the fourth quarter of 2022, interest expense, mortgages payable on real estate is presented in expenses related to real estate on the Company's condensed consolidated statements of operations. Previously, interest expense, mortgages payable on real estate was presented in interest expense and net interest income on the Company's condensed consolidated statements of operations.
Principles of Consolidation and Variable Interest Entities	Principles of Consolidation and Variable Interest Entities – The accompanying condensed consolidated financial statements of the Company include the accounts of all its subsidiaries which are majority-owned, controlled by the Company or a variable interest entity (“VIE”) where the Company is the primary beneficiary. All significant intercompany accounts and transactions have been eliminated in consolidation (see Note 7). A VIE is an entity that lacks one or more of the characteristics of a voting interest entity. A VIE is defined as an entity in which equity investors do not have the characteristics of a controlling financial interest or do not have sufficient equity at risk for the entity to finance its activities without additional subordinated financial support from other parties. The Company consolidates a VIE in accordance with ASC 810, Consolidation ("ASC 810") when it is the primary beneficiary of such VIE, herein referred to as a "Consolidated VIE". As primary beneficiary, the Company 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 evaluates the initial consolidation of each Consolidated VIE, which includes a determination of whether the VIE constitutes the definition of a business in accordance with ASC 805, Business Combinations ("ASC 805"), by considering if substantially all of the fair value of the gross assets within the VIE are concentrated in either a single identifiable asset or group of single identifiable assets. Upon consolidation, the Company recognizes the assets acquired, the liabilities assumed, and any third-party ownership of membership interests as non-controlling interest as of the consolidation or acquisition date, measured at their relative fair values (see Note 7). Non-controlling interest in Consolidated VIEs is adjusted prospectively for its share of the allocation of income or loss and equity contributions and distributions from each respective Consolidated VIE. The third-party owners of certain of the non-controlling interests in Consolidated VIEs have the ability to sell their ownership interests to the Company, at their election, subject to certain conditions. The Company has classified these third-party ownership interests as redeemable non-controlling interest in Consolidated VIEs in mezzanine equity on the accompanying condensed consolidated balance sheets.
Derivative Financial Instruments	Derivative Financial Instruments – The Company enters into various types of derivative financial instruments in connection with its risk management activities which are recorded on the accompanying condensed consolidated balance sheets as assets or liabilities at fair value in accordance with ASC 815, Derivatives and Hedging (“ASC 815”). Changes in fair value are accounted for depending on the use of the derivative financial instruments and whether they qualify for hedge accounting treatment. The Company elected not to apply hedge accounting for its derivative financial instruments; accordingly, all changes in fair value are reported on the accompanying condensed consolidated statements of operations as unrealized gains (losses), net.The Company is subject to interest rate risk exposure in the normal course of pursuing its investment objectives. Primarily to help mitigate interest rate risk, the Company may enter into interest rate swaps. Interest rate swaps are contractual agreements whereby one party pays a floating interest rate on a notional principal amount and receives a fixed-rate payment on the same notional principal, or vice versa, for a fixed period of time. Interest rate swaps change in value with movements in interest rates. All of the Company’s interest rate swaps are cleared through a central clearing house which requires that the Company post an initial margin amount determined by the central clearing house, which is generally intended to be set at a level sufficient to protect the exchange from the derivative financial instrument’s maximum estimated single-day price movement. The Company also exchanges variation margin based upon daily changes in fair value, as measured by the central clearing house. The exchange of variation margin is treated as a legal settlement of the exposure under the interest rate swap contract, as opposed to pledged collateral. Accordingly, the Company accounts for the receipt or payment of variation margin as a direct reduction to or increase in the carrying value of the interest rate swap asset or liability. The receipt or payment of initial margin is accounted for separate from the interest rate swap asset or liability and classified within restricted cash and included in other assets on the accompanying condensed consolidated balance sheets. Any additional margin fundings, in excess of initial margin and variation margin, are included in other assets on the accompanying condensed consolidated balance sheets.
Summary of Recent Accounting Pronouncements	Summary of Recent Accounting Pronouncements In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting ("ASU 2020-04"). ASU 2020-04 provides optional expedients and exceptions to GAAP requirements for modifications to debt agreements, leases, derivatives and other contracts, related to the expected market transition from LIBOR, and certain other floating rate benchmark indices, or collectively, IBORs, to alternative reference rates. ASU 2020-04 generally considers contract modifications related to reference rate reform to be an event that does not require contract remeasurement at the modification date nor a reassessment of a previous accounting determination. In January 2021, the FASB issued ASU 2021-01, Reference Rate Reform (Topic 848): Scope ("ASU 2021-01"). ASU 2021-01 clarifies that certain optional expedients and exceptions in Topic 848 for contract modifications and hedge accounting apply to derivatives that are affected by the "discounting transition" (i.e., changes in the interest rates used for margining, discounting, or contract price alignment for derivative instruments that are being implemented as part of the market-wide transition to new reference rates). Once ASU 2020-04 is elected, the guidance must be applied prospectively for all eligible contract modifications. The amendments in ASU 2021-01 were effective immediately and may be applied on a full retrospective basis as of any date from the beginning of an interim period that includes or is subsequent to March 12, 2020 or on a prospective basis for eligible contract modifications. In December 2022, the FASB issued ASU 2022-06, Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848 ("ASU 2022-06"), which allows ASU 2020-04 to be adopted and applied prospectively to contract modifications made on or before December 31, 2024. The Company continues to evaluate the impact of ASU 2020-04 and ASU 2021-01 on its financing transactions that are subject to LIBOR and may apply elections, as applicable, as the expected market transition from IBORs to alternative reference rates continues to develop.
Fair Value of Financial Instruments	The Company has established and documented processes for determining fair values. Fair value is based upon quoted market prices, where available. If listed prices or quotes are not available, then fair value is based upon internally developed models that primarily use inputs that are market-based or independently-sourced market parameters, including interest rate yield curves. 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, as well as the general classification of such instruments pursuant to the valuation hierarchy. a.Residential Loans Held in Consolidated SLST – Residential loans held in Consolidated SLST are carried at fair value and classified as Level 3 fair values. In accordance with the practical expedient in ASC 810, the Company determines the fair value of residential loans held in Consolidated SLST based on the fair value of the CDOs issued by the securitization and its investment in the securitization (eliminated in consolidation in accordance with GAAP), as the fair value of these instruments is more observable. The investment securities (eliminated in consolidation in accordance with GAAP) that we own in the securitization are generally illiquid and trade infrequently. As such, they are classified as Level 3 in the fair value hierarchy. The fair valuation of these investment securities is determined based on an internal valuation model that considers expected cash flows from the underlying loans and yields required by market participants. The significant unobservable inputs used in the measurement of these investments are projected losses within the pool of loans and a discount rate. The discount rate used in determining fair value incorporates default rate, loss severity, prepayment rate and current market interest rates. Significant increases or decreases in these inputs would result in a significantly lower or higher fair value measurement. b.Residential Loans and Residential Loans Held in Securitization Trusts – The Company’s acquired residential loans are recorded at fair value and classified as Level 3 in the fair value hierarchy. The fair value for residential loans is determined using valuations obtained from a third party that specializes in providing valuations of residential loans. The valuation approach depends on whether the residential loan is considered performing, re-performing or non-performing at the date the valuation is performed. For performing and re-performing loans, estimates of fair value are derived using a discounted cash flow model, where estimates of cash flows are determined from scheduled payments for each loan, adjusted using forecast prepayment rates, default rates and rates for loss upon default. For non-performing loans, asset liquidation cash flows are derived based on the estimated time to liquidate the loan, expected liquidation 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. c.Preferred Equity and Mezzanine Loan Investments – Fair value for preferred equity and mezzanine loan investments is determined by both market comparable pricing and discounted cash flows. The discounted cash flows are based on the underlying estimated cash flows and estimated changes in market yields. The fair value also reflects consideration of changes in credit risk since origination or time of initial investment. This fair value measurement is generally based on unobservable inputs and, as such, is classified as Level 3 in the fair value hierarchy. d.Investment Securities Available for Sale – The Company determines the fair value of all of its investment securities available for sale based on discounted cash flows utilizing an internal pricing model. The methodology considers the characteristics of the particular security and its underlying collateral, which are observable inputs. These inputs include, but are not limited to, delinquency status, coupon, loan-to-value ("LTV"), historical performance, periodic and life caps, collateral type, rate reset period, seasoning, prepayment speeds and credit enhancement levels. The Company also considers several observable market data points, including prices obtained from third-party pricing services or dealers who make markets in similar financial instruments, trading activity, and dialogue with market participants. Third-party pricing services typically incorporate commonly used market pricing methods, trading activity observed in the marketplace and other data inputs similar to those used in the Company's internal pricing model. The Company has established thresholds to compare internally generated prices with independent third-party prices and any differences that exceed the thresholds are reviewed both internally and with the third-party pricing service. The Company reconciles and resolves all pricing differences in excess of the thresholds before a final price is established. The Company’s investment securities available for sale are valued based upon readily observable market parameters and are classified as Level 2 fair values. e.Equity Investments – Fair value for equity investments is determined (i) by the valuation process for preferred equity and mezzanine loan investments as described in c. above or (ii) using weighted multiples of origination volume and earnings before taxes, depreciation and amortization of the entity. These fair value measurements are generally based on unobservable inputs and, as such, are classified as Level 3 in the fair value hierarchy. f.Derivative Instruments – The fair values of the Company's interest rate cap agreements are measured using models developed by either third-party pricing providers or the respective counterparty that use the market-standard methodology of discounting the future expected cash receipts which would occur if floating interest rates rise above the strike rate of the caps. The floating interest rates used in the calculation of projected receipts on the interest rate caps are based on an expectation of future interest rates derived from observable market interest rate curves and volatilities. The inputs used in the valuation of interest rate caps fall within Level 2 of the fair value hierarchy. The Company's interest rate swaps are classified as Level 2 fair values and are measured using valuations reported by CME Clearing. The derivatives are presented net of variation margin payments pledged or received. The Company's options are classified as Level 2 fair values and are measured using prices obtained from the counterparty. g.Collateralized Debt Obligations – CDOs issued by Consolidated SLST are classified as Level 3 fair values for which fair value is determined by considering several market data points, including prices obtained from third-party pricing services or dealers who make markets in similar financial instruments. The third-party pricing service or dealers incorporate common market pricing methods, including a spread measurement to the Treasury curve or interest rate swap curve as well as underlying characteristics of the particular security. They will also consider contractual cash payments and yields expected by market participants. Refer to a. above for a description of the fair valuation of CDOs issued by Consolidated SLST that are eliminated in consolidation. Management reviews all prices used in determining fair value to ensure they represent current market conditions. This review includes surveying similar market transactions and comparisons to interest pricing models as well as offerings of like securities by dealers. Any changes to the valuation methodology are reviewed by management to ensure the changes are appropriate. As markets and products develop and the pricing for certain products becomes more transparent, the Company continues to refine its valuation methodologies. The methods described above may produce a fair value calculation 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 other 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 each reporting date, which may include periods of market dislocation, during which time price transparency may be reduced. This condition could cause the Company’s financial instruments to be reclassified from Level 2 to Level 3 in future periods.

Summary of Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2023

Basis of Presentation – On March 9, 2023, the Company effected a one-for-four reverse stock split of its issued, outstanding and authorized shares of common stock (the "Reverse Stock Split"). Accordingly, all common share and per common share data for all periods presented in these condensed consolidated financial statements and notes thereto have been adjusted on a retroactive basis to reflect the impact of the Reverse Stock Split.

The accompanying condensed consolidated balance sheet as of December 31, 2022 has been derived from audited financial statements. The accompanying condensed consolidated balance sheet as of March 31, 2023, the accompanying condensed consolidated statements of operations for the three months ended March 31, 2023 and 2022, the accompanying condensed consolidated statements of comprehensive income (loss) for the three months ended March 31, 2023 and 2022, the accompanying condensed consolidated statements of changes in stockholders’ equity for the three months ended March 31, 2023 and 2022 and the accompanying condensed consolidated statements of cash flows for the three months ended March 31, 2023 and 2022 are unaudited. In our opinion, all adjustments (which include only normal recurring adjustments) necessary to present fairly the Company’s financial position, results of operations and cash flows have been made. Certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted in accordance with Article 10 of Regulation S-X and the instructions to Form 10-Q. These condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2022, as filed with the U.S. Securities and Exchange Commission (“SEC”). Accordingly, significant accounting policies and other disclosures have been omitted since such items are disclosed in Note 2 in the audited consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2022. Provided in this section is a summary of additional accounting policies that are significant to, or newly adopted by, the Company for the three months ended March 31, 2023. The results of operations for the three months ended March 31, 2023 are not necessarily indicative of the operating results for the full year.

The accompanying condensed consolidated financial statements have been prepared on the accrual basis of accounting in accordance with 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. Management has made significant estimates in several areas, including fair valuation of its residential loans, multi-family loans, certain equity investments, real estate held by Consolidated VIEs and Consolidated SLST CDOs. Although the Company’s estimates contemplate current conditions and how it expects those conditions to change in the future, it is reasonably possible that actual conditions could be different than anticipated in those estimates, which could materially impact the Company’s results of operations and its financial condition.

Reclassifications

Reclassifications – Certain prior period amounts have been reclassified in the accompanying condensed consolidated financial statements to conform to current period presentation. In particular, prior period disclosures have been adjusted for the aforementioned Reverse Stock Split. Additionally, prior period disclosures have been conformed to the current period presentation of interest expense, mortgages payable on real estate. Starting in the fourth quarter of 2022, interest expense, mortgages payable on real estate is presented in expenses related to real estate on the Company's condensed consolidated statements of operations. Previously, interest expense, mortgages payable on real estate was presented in interest expense and net interest income on the Company's condensed consolidated statements of operations.

Principles of Consolidation and Variable Interest Entities

Principles of Consolidation and Variable Interest Entities – The accompanying condensed consolidated financial statements of the Company include the accounts of all its subsidiaries which are majority-owned, controlled by the Company or a variable interest entity (“VIE”) where the Company is the primary beneficiary. All significant intercompany accounts and transactions have been eliminated in consolidation (see Note 7).

A VIE is an entity that lacks one or more of the characteristics of a voting interest entity. A VIE is defined as an entity in which equity investors do not have the characteristics of a controlling financial interest or do not have sufficient equity at risk for the entity to finance its activities without additional subordinated financial support from other parties. The Company consolidates a VIE in accordance with ASC 810, Consolidation ("ASC 810") when it is the primary beneficiary of such VIE, herein referred to as a "Consolidated VIE". As primary beneficiary, the Company 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 evaluates the initial consolidation of each Consolidated VIE, which includes a determination of whether the VIE constitutes the definition of a business in accordance with ASC 805, Business Combinations ("ASC 805"), by considering if substantially all of the fair value of the gross assets within the VIE are concentrated in either a single identifiable asset or group of single identifiable assets. Upon consolidation, the Company recognizes the assets acquired, the liabilities assumed, and any third-party ownership of membership interests as non-controlling interest as of the consolidation or acquisition date, measured at their relative fair values (see Note 7). Non-controlling interest in Consolidated VIEs is adjusted prospectively for its share of the allocation of income or loss and equity contributions and distributions from each respective Consolidated VIE. The third-party owners of certain of the non-controlling interests in Consolidated VIEs have the ability to sell their ownership interests to the Company, at their election, subject to certain conditions. The Company has classified these third-party ownership interests as redeemable non-controlling interest in Consolidated VIEs in mezzanine equity on the accompanying condensed consolidated balance sheets.

Derivative Financial Instruments

Derivative Financial Instruments – The Company enters into various types of derivative financial instruments in connection with its risk management activities which are recorded on the accompanying condensed consolidated balance sheets as assets or liabilities at fair value in accordance with ASC 815, Derivatives and Hedging (“ASC 815”). Changes in fair value are accounted for depending on the use of the derivative financial instruments and whether they qualify for hedge accounting treatment. The Company elected not to apply hedge accounting for its derivative financial instruments; accordingly, all changes in fair value are reported on the accompanying condensed consolidated statements of operations as unrealized gains (losses), net.The Company is subject to interest rate risk exposure in the normal course of pursuing its investment objectives. Primarily to help mitigate interest rate risk, the Company may enter into interest rate swaps. Interest rate swaps are contractual agreements whereby one party pays a floating interest rate on a notional principal amount and receives a fixed-rate payment on the same notional principal, or vice versa, for a fixed period of time. Interest rate swaps change in value with movements in interest rates. All of the Company’s interest rate swaps are cleared through a central clearing house which requires that the Company post an initial margin amount determined by the central clearing house, which is generally intended to be set at a level sufficient to protect the exchange from the derivative financial instrument’s maximum estimated single-day price movement. The Company also exchanges variation margin based upon daily changes in fair value, as measured by the central clearing house. The exchange of variation margin is treated as a legal settlement of the exposure under the interest rate swap contract, as opposed to pledged collateral. Accordingly, the Company accounts for the receipt or payment of variation margin as a direct reduction to or increase in the carrying value of the interest rate swap asset or liability. The receipt or payment of initial margin is accounted for separate from the interest rate swap asset or liability and classified within restricted cash and included in other assets on the accompanying condensed consolidated balance sheets. Any additional margin fundings, in excess of initial margin and variation margin, are included in other assets on the accompanying condensed consolidated balance sheets.

Summary of Recent Accounting Pronouncements

In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting ("ASU 2020-04"). ASU 2020-04 provides optional expedients and exceptions to GAAP requirements for modifications to debt agreements, leases, derivatives and other contracts, related to the expected market transition from LIBOR, and certain other floating rate benchmark indices, or collectively, IBORs, to alternative reference rates. ASU 2020-04 generally considers contract modifications related to reference rate reform to be an event that does not require contract remeasurement at the modification date nor a reassessment of a previous accounting determination. In January 2021, the FASB issued ASU 2021-01, Reference Rate Reform (Topic 848): Scope ("ASU 2021-01"). ASU 2021-01 clarifies that certain optional expedients and exceptions in Topic 848 for contract modifications and hedge accounting apply to derivatives that are affected by the "discounting transition" (i.e., changes in the interest rates used for margining, discounting, or contract price alignment for derivative instruments that are being implemented as part of the market-wide transition to new reference rates). Once ASU 2020-04 is elected, the guidance must be applied prospectively for all eligible contract modifications. The amendments in ASU 2021-01 were effective immediately and may be applied on a full retrospective basis as of any date from the beginning of an interim period that includes or is subsequent to March 12, 2020 or on a prospective basis for eligible contract modifications. In December 2022, the FASB issued ASU 2022-06, Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848 ("ASU 2022-06"), which allows ASU 2020-04 to be adopted and applied prospectively to contract modifications made on or before December 31, 2024. The Company continues to evaluate the impact of ASU 2020-04 and ASU 2021-01 on its financing transactions that are subject to LIBOR and may apply elections, as applicable, as the expected market transition from IBORs to alternative reference rates continues to develop.

Fair Value of Financial Instruments

The Company has established and documented processes for determining fair values. Fair value is based upon quoted market prices, where available. If listed prices or quotes are not available, then fair value is based upon internally developed models that primarily use inputs that are market-based or independently-sourced market parameters, including interest rate yield curves.

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, as well as the general classification of such instruments pursuant to the valuation hierarchy.

a.Residential Loans Held in Consolidated SLST – Residential loans held in Consolidated SLST are carried at fair value and classified as Level 3 fair values. In accordance with the practical expedient in ASC 810, the Company determines the fair value of residential loans held in Consolidated SLST based on the fair value of the CDOs issued by the securitization and its investment in the securitization (eliminated in consolidation in accordance with GAAP), as the fair value of these instruments is more observable.

The investment securities (eliminated in consolidation in accordance with GAAP) that we own in the securitization are generally illiquid and trade infrequently. As such, they are classified as Level 3 in the fair value hierarchy. The fair valuation of these investment securities is determined based on an internal valuation model that considers expected cash flows from the underlying loans and yields required by market participants. The significant unobservable inputs used in the measurement of these investments are projected losses within the pool of loans and a discount rate. The discount rate used in determining fair value incorporates default rate, loss severity, prepayment rate and current market interest rates. Significant increases or decreases in these inputs would result in a significantly lower or higher fair value measurement.

b.Residential Loans and Residential Loans Held in Securitization Trusts – The Company’s acquired residential loans are recorded at fair value and classified as Level 3 in the fair value hierarchy. The fair value for residential loans is determined using valuations obtained from a third party that specializes in providing valuations of residential loans. The valuation approach depends on whether the residential loan is considered performing, re-performing or non-performing at the date the valuation is performed.

For performing and re-performing loans, estimates of fair value are derived using a discounted cash flow model, where estimates of cash flows are determined from scheduled payments for each loan, adjusted using forecast prepayment rates, default rates and rates for loss upon default. For non-performing loans, asset liquidation cash flows are derived based on the estimated time to liquidate the loan, expected liquidation 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.

c.Preferred Equity and Mezzanine Loan Investments – Fair value for preferred equity and mezzanine loan investments is determined by both market comparable pricing and discounted cash flows. The discounted cash flows are based on the underlying estimated cash flows and estimated changes in market yields. The fair value also reflects consideration of changes in credit risk since origination or time of initial investment. This fair value measurement is generally based on unobservable inputs and, as such, is classified as Level 3 in the fair value hierarchy.

d.Investment Securities Available for Sale – The Company determines the fair value of all of its investment securities available for sale based on discounted cash flows utilizing an internal pricing model. The methodology considers the characteristics of the particular security and its underlying collateral, which are observable inputs. These inputs include, but are not limited to, delinquency status, coupon, loan-to-value ("LTV"), historical performance, periodic and life caps, collateral type, rate reset period, seasoning, prepayment speeds and credit enhancement levels. The Company also considers several observable market data points, including prices obtained from third-party pricing services or dealers who make markets in similar financial instruments, trading activity, and dialogue with market participants. Third-party pricing services typically incorporate commonly used market pricing methods, trading activity observed in the marketplace and other data inputs similar to those used in the Company's internal pricing model. The Company has established thresholds to compare internally generated prices with independent third-party prices and any differences that exceed the thresholds are reviewed both internally and with the third-party pricing service. The Company reconciles and resolves all pricing differences in excess of the thresholds before a final price is established. The Company’s investment securities available for sale are valued based upon readily observable market parameters and are classified as Level 2 fair values.

e.Equity Investments – Fair value for equity investments is determined (i) by the valuation process for preferred equity and mezzanine loan investments as described in c. above or (ii) using weighted multiples of origination volume and earnings before taxes, depreciation and amortization of the entity. These fair value measurements are generally based on unobservable inputs and, as such, are classified as Level 3 in the fair value hierarchy.

f.Derivative Instruments – The fair values of the Company's interest rate cap agreements are measured using models developed by either third-party pricing providers or the respective counterparty that use the market-standard methodology of discounting the future expected cash receipts which would occur if floating interest rates rise above the strike rate of the caps. The floating interest rates used in the calculation of projected receipts on the interest rate caps are based on an expectation of future interest rates derived from observable market interest rate curves and volatilities. The inputs used in the valuation of interest rate caps fall within Level 2 of the fair value hierarchy.

The Company's interest rate swaps are classified as Level 2 fair values and are measured using valuations reported by CME Clearing. The derivatives are presented net of variation margin payments pledged or received.

The Company's options are classified as Level 2 fair values and are measured using prices obtained from the counterparty.

g.Collateralized Debt Obligations – CDOs issued by Consolidated SLST are classified as Level 3 fair values for which fair value is determined by considering several market data points, including prices obtained from third-party pricing services or dealers who make markets in similar financial instruments. The third-party pricing service or dealers incorporate common market pricing methods, including a spread measurement to the Treasury curve or interest rate swap curve as well as underlying characteristics of the particular security. They will also consider contractual cash payments and yields expected by market participants.

Refer to a. above for a description of the fair valuation of CDOs issued by Consolidated SLST that are eliminated in consolidation.

Management reviews all prices used in determining fair value to ensure they represent current market conditions. This review includes surveying similar market transactions and comparisons to interest pricing models as well as offerings of like securities by dealers. Any changes to the valuation methodology are reviewed by management to ensure the changes are appropriate. As markets and products develop and the pricing for certain products becomes more transparent, the Company continues to refine its valuation methodologies. The methods described above may produce a fair value calculation 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 other 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 each reporting date, which may include periods of market dislocation, during which time price transparency may be reduced. This condition could cause the Company’s financial instruments to be reclassified from Level 2 to Level 3 in future periods.