Organization, Basis of Presentation and Summary of Significant Accounting Policies (Policies)	3 Months Ended
Mar. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation Restatement of Prior Year Amounts As discussed in the Company's 2021 consolidated financial statements included in the Annual Report on Form 10-K for the year ended December 31, 2021 (the "Annual Report"), the Company restated each of the quarterly and year-to-date periods ended March 31, 2021, June 30, 2021 and September 30, 2021. Amounts as of or for the period ended March 31, 2021 depicted in these interim consolidated financial statements as "As Restated" are taken from the Company's restatement disclosures in the Annual Report. See the 2021 consolidated financial statements included in the Annual Report for details of the restatement adjustments.
Segments	Segments At March 31, 2022, the Company had three reportable operating segments: Core Portfolio, Funds and Structured Financing. The Company’s chief operating decision maker may review operational and financial data on a property-level basis and does not differentiate properties on a geographical basis for purposes of allocating resources or capital.
Principles of Consolidation	Principles of Consolidation The interim consolidated financial statements include the consolidated accounts of the Company and its investments in partnerships and limited liability companies in which the Company has control in accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 810 “Consolidation” (“ASC Topic 810”). The ownership interests of other investors in these entities are recorded as noncontrolling interests. All significant intercompany balances and transactions have been eliminated in consolidation. Investments in entities for which the Company has the ability to exercise significant influence over, but does not have financial or operating control, are accounted for using the equity method of accounting. Accordingly, the Company’s share of the earnings (or losses) of these entities are included in consolidated net income or loss. The interim consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim financial information and the rules and regulations of the U.S. Securities and Exchange Commission (“SEC”). Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. Operating results for the interim periods presented are not necessarily indicative of the results that may be expected for the full fiscal year. The information furnished in the accompanying consolidated financial statements reflects all adjustments that, in the opinion of management, are necessary for a fair presentation of the aforementioned consolidated financial statements for the interim periods. Such adjustments consisted of normal recurring items. These interim consolidated financial statements should be read in conjunction with the Company’s 2021 consolidated financial statements included in the Annual Report.
Use of Estimates	Use of Estimates GAAP requires the Company’s management to make estimates and assumptions that affect the amounts reported in the interim consolidated financial statements and accompanying notes. The most significant assumptions and estimates relate to the valuation of real estate, depreciable lives, revenue recognition and the collectability of notes receivable and rents receivable. Application of these estimates and assumptions requires the exercise of judgment as to future uncertainties and, as a result, actual results could differ from these estimates.
Recently Adopted Accounting and Reporting Guidance	Recently Adopted Accounting and Reporting Guidance In August 2020, the FASB issued ASU 2020-06—Debt with conversion and other options (Subtopic 470-20) and derivatives and hedging—contracts in entity's own equity (Subtopic 815-40)—accounting for convertible instruments and contracts in an entity's own equity. This ASU simplifies the accounting for certain financial instruments with characteristics of liabilities and equity, including convertible instruments and contracts on an entity’s own equity. The ASU simplifies accounting for convertible instruments and simplifies the diluted earnings per share (EPS) calculation in certain areas. This ASU is effective for fiscal years beginning after December 15, 2021. Currently, the Company does not have any such debt instruments and, as a result, the implementation of this guidance did not have an effect on the Company’s consolidated financial statements. In May 2021, the FASB issued ASU 2021-04 Modification of Equity-Classified Written Call Options — Earnings Per Share (Topic 260), Debt—Modifications and Extinguishments (Subtopic 470-50), Compensation—Stock Compensation (Topic 718), and Derivatives and Hedging— Contracts in Entity’s Own Equity (Subtopic 815-40): Issuer’s Accounting for Certain Modifications or Exchanges of Freestanding Equity-Classified Written Call Options — to codify how an issuer should account for modifications made to equity-classified written call options (a warrant to purchase the issuer’s common stock). The guidance in the ASU requires the issuer to treat a modification of an equity-classified warrant that does not cause the warrant to become liability-classified as an exchange whether structured as an amendment or reissuance and is effective for all periods beginning after December 15, 2021 with early application permitted. The Company does not currently have any outstanding equity awards with written call options. As a result, the implementation of this guidance did not have an effect on the Company’s consolidated financial statements. In July 2021, the FASB issued ASU 2021-05 Leases (Topic 842): Lessors—Certain Leases with Variable Lease Payments. This Update requires a lessor to classify a lease with entirely or partially variable payments that do not depend on an index or rate as an operating lease if another classification (i.e. sales-type or direct financing) would trigger a commencement date selling loss. The guidance in the ASU is effective for all periods beginning after December 15, 2021 with early application permitted and may be applied either retrospectively or prospectively. The Company does not currently have any sales-type or direct financing leases as lessor. As a result, the implementation of this guidance did not have an effect on the Company’s consolidated financial statements. In January 2021, the FASB issued ASU 2021-01 Reference Rate Reform (Topic 848) which modifies ASC 848, which was intended to provide relief related to “contracts and transactions that reference LIBOR or a reference rate that is expected to be discontinued as a result of reference rate reform.” ASU 2021-01 expands the scope of ASC 848 to include all affected derivatives and give reporting entities the ability to apply certain aspects of the contract modification and hedge accounting expedients to derivative contracts affected by the discounting transition. ASU 2021-01 also adds implementation guidance to clarify which optional expedients in ASC 848 may be applied to derivative instruments that do not reference LIBOR or a reference rate that is expected to be discontinued, but that are being modified as a result of the discounting transition. Currently, the Company does not anticipate the need to modify any existing debt agreements as a result of reference rate reform in the current year. If any modification is executed as a result of reference rate reform, the Company will elect the optional practical expedient under ASU 2020-04 and 2021-01, which allows entities to account for the modification as if the modification was not substantial. As a result, the implementation of this guidance is not expected to have an effect on the Company’s consolidated financial statements. Recently Issued Accounting Pronouncements In March 2022, the FASB issued ASU 2022-01 Derivatives and Hedging (Topic 815) Fair Value Hedging—Portfolio Layer Method. The amendments in this Update allow non-prepayable financial assets also to be included in a closed portfolio hedged using the portfolio layer method. That expanded scope permits an entity to apply the same portfolio hedging method to both prepayable and non-prepayable financial assets, thereby allowing consistent accounting for similar hedges. The guidance in the ASU is effective for all periods beginning after December 15, 2022 with early application permitted and may be applied prospectively. The Company does not currently utilize the portfolio layer method. As a result, the implementation of this guidance is not expected to have a material effect on the Company’s consolidated financial statements. In March 2022, the FASB issued ASU 2022-02 Financial Instruments—Credit Losses (Topic 326) Troubled Debt Restructurings and Vintage Disclosures. Rather than applying the recognition and measurement guidance for Troubled Debt Restructurings ("TDRs"), an entity must apply the loan refinancing and restructuring guidance in ASC 310-20-35-9 through 35-11 to determine whether a modification results in a new loan or a continuation of an existing loan. In addition, this Update requires that an entity disclose current-period gross write-offs by year of origination for financing receivables and net investments in leases within the scope of Subtopic 326-20, Financial Instruments—Credit Losses—Measured at Amortized Cost. The guidance in the ASU is effective for all periods beginning after December 15, 2022 with early application permitted and may be applied prospectively. The Company does not currently have any financial instruments that meet the definition of a TDR. As a result, the implementation of this guidance is not expected to have a material effect on the Company’s consolidated financial statements.
Lease Intangibles	Upon acquisitions of real estate (Note 2), the Company assesses the fair value of acquired assets (including land, buildings and improvements, and identified intangibles such as above- and below-market leases, including below-market options and acquired in-place leases) and assumed liabilities. The lease intangibles are amortized over the remaining terms of the respective leases, including option periods where applicable.
Earnings Per Common Share	Basic earnings per Common Share is computed by dividing net income attributable to Common Shareholders by the weighted-average Common Shares outstanding (Note 10). During the periods presented, the Company had unvested LTIP Units which provide for non-forfeitable rights to dividend equivalent payments. Accordingly, these unvested LTIP Units are considered participating securities and are included in the computation of basic earnings per Common Share pursuant to the two-class method. Diluted earnings per Common Share reflects the potential dilution of the conversion of obligations and the assumed exercises of securities including the effects of Restricted Share Units issued under the Company’s Share Incentive Plans (Note 13). The effect of such shares is excluded from the calculation of earnings per share when anti-dilutive as indicated in the table below. The effect of the conversion of Common OP Units is not reflected in the computation of basic and diluted earnings per share, as they are exchangeable for Common Shares on a one-for-one basis. The income allocable to such units is allocated on this same basis and reflected as noncontrolling interests in the accompanying consolidated financial statements. As such, the assumed conversion of these units would have no net impact on the determination of diluted earnings per share.

Organization, Basis of Presentation and Summary of Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2022

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Restatement of Prior Year Amounts

As discussed in the Company's 2021 consolidated financial statements included in the Annual Report on Form 10-K for the year ended December 31, 2021 (the "Annual Report"), the Company restated each of the quarterly and year-to-date periods ended March 31, 2021, June 30, 2021 and September 30, 2021. Amounts as of or for the period ended March 31, 2021 depicted in these interim consolidated financial statements as "As Restated" are taken from the Company's restatement disclosures in the Annual Report. See the 2021 consolidated financial statements included in the Annual Report for details of the restatement adjustments.

Segments

At March 31, 2022, the Company had three reportable operating segments: Core Portfolio, Funds and Structured Financing. The Company’s chief operating decision maker may review operational and financial data on a property-level basis and does not differentiate properties on a geographical basis for purposes of allocating resources or capital.

Principles of Consolidation

The interim consolidated financial statements include the consolidated accounts of the Company and its investments in partnerships and limited liability companies in which the Company has control in accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 810 “Consolidation” (“ASC Topic 810”). The ownership interests of other investors in these entities are recorded as noncontrolling interests. All significant intercompany balances and transactions have been eliminated in consolidation. Investments in entities for which the Company has the ability to exercise significant influence over, but does not have financial or operating control, are accounted for using the equity method of accounting. Accordingly, the Company’s share of the earnings (or losses) of these entities are included in consolidated net income or loss.

The interim consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim financial information and the rules and regulations of the U.S. Securities and Exchange Commission (“SEC”). Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. Operating results for the interim periods presented are not necessarily indicative of the results that may be expected for the full fiscal year. The information furnished in the accompanying consolidated financial statements reflects all adjustments that, in the opinion of management, are necessary for a fair presentation of the aforementioned consolidated financial statements for the interim periods. Such adjustments consisted of normal recurring items.

These interim consolidated financial statements should be read in conjunction with the Company’s 2021 consolidated financial statements included in the Annual Report.

Use of Estimates

GAAP requires the Company’s management to make estimates and assumptions that affect the amounts reported in the interim consolidated financial statements and accompanying notes. The most significant assumptions and estimates relate to the valuation of real estate, depreciable lives, revenue recognition and the collectability of notes receivable and rents receivable. Application of these estimates and assumptions requires the exercise of judgment as to future uncertainties and, as a result, actual results could differ from these estimates.

Recently Adopted Accounting and Reporting Guidance

In August 2020, the FASB issued ASU 2020-06—Debt with conversion and other options (Subtopic 470-20) and derivatives and hedging—contracts in entity's own equity (Subtopic 815-40)—accounting for convertible instruments and contracts in an entity's own equity. This ASU simplifies the accounting for certain financial instruments with characteristics of liabilities and equity, including convertible instruments and contracts on an entity’s own equity. The ASU simplifies accounting for convertible instruments and simplifies the diluted earnings per share (EPS) calculation in certain areas. This ASU is effective for fiscal years beginning after December 15, 2021. Currently, the Company does not have any such debt instruments and, as a result, the implementation of this guidance did not have an effect on the Company’s consolidated financial statements.

In May 2021, the FASB issued ASU 2021-04 Modification of Equity-Classified Written Call Options — Earnings Per Share (Topic 260), Debt—Modifications and Extinguishments (Subtopic 470-50), Compensation—Stock Compensation (Topic 718), and Derivatives and Hedging— Contracts in Entity’s Own Equity (Subtopic 815-40): Issuer’s Accounting for Certain Modifications or Exchanges of Freestanding

Equity-Classified Written Call Options — to codify how an issuer should account for modifications made to equity-classified written call options (a warrant to purchase the issuer’s common stock). The guidance in the ASU requires the issuer to treat a modification of an equity-classified warrant that does not cause the warrant to become liability-classified as an exchange whether structured as an amendment or reissuance and is effective for all periods beginning after December 15, 2021 with early application permitted. The Company does not currently have any outstanding equity awards with written call options. As a result, the implementation of this guidance did not have an effect on the Company’s consolidated financial statements.

In July 2021, the FASB issued ASU 2021-05 Leases (Topic 842): Lessors—Certain Leases with Variable Lease Payments. This Update requires a lessor to classify a lease with entirely or partially variable payments that do not depend on an index or rate as an operating lease if another classification (i.e. sales-type or direct financing) would trigger a commencement date selling loss. The guidance in the ASU is effective for all periods beginning after December 15, 2021 with early application permitted and may be applied either retrospectively or prospectively. The Company does not currently have any sales-type or direct financing leases as lessor. As a result, the implementation of this guidance did not have an effect on the Company’s consolidated financial statements.

In January 2021, the FASB issued ASU 2021-01 Reference Rate Reform (Topic 848) which modifies ASC 848, which was intended to provide relief related to “contracts and transactions that reference LIBOR or a reference rate that is expected to be discontinued as a result of reference rate reform.” ASU 2021-01 expands the scope of ASC 848 to include all affected derivatives and give reporting entities the ability to apply certain aspects of the contract modification and hedge accounting expedients to derivative contracts affected by the discounting transition. ASU 2021-01 also adds implementation guidance to clarify which optional expedients in ASC 848 may be applied to derivative instruments that do not reference LIBOR or a reference rate that is expected to be discontinued, but that are being modified as a result of the discounting transition. Currently, the Company does not anticipate the need to modify any existing debt agreements as a result of reference rate reform in the current year. If any modification is executed as a result of reference rate reform, the Company will elect the optional practical expedient under ASU 2020-04 and 2021-01, which allows entities to account for the modification as if the modification was not substantial. As a result, the implementation of this guidance is not expected to have an effect on the Company’s consolidated financial statements.

Recently Issued Accounting Pronouncements

In March 2022, the FASB issued ASU 2022-01 Derivatives and Hedging (Topic 815) Fair Value Hedging—Portfolio Layer Method. The amendments in this Update allow non-prepayable financial assets also to be included in a closed portfolio hedged using the portfolio layer method. That expanded scope permits an entity to apply the same portfolio hedging method to both prepayable and non-prepayable financial assets, thereby allowing consistent accounting for similar hedges. The guidance in the ASU is effective for all periods beginning after December 15, 2022 with early application permitted and may be applied prospectively. The Company does not currently utilize the portfolio layer method. As a result, the implementation of this guidance is not expected to have a material effect on the Company’s consolidated financial statements.

In March 2022, the FASB issued ASU 2022-02 Financial Instruments—Credit Losses (Topic 326) Troubled Debt Restructurings and Vintage Disclosures. Rather than applying the recognition and measurement guidance for Troubled Debt Restructurings ("TDRs"), an entity must apply the loan refinancing and restructuring guidance in ASC 310-20-35-9 through 35-11 to determine whether a modification results in a new loan or a continuation of an existing loan. In addition, this Update requires that an entity disclose current-period gross write-offs by year of origination for financing receivables and net investments in leases within the scope of Subtopic 326-20, Financial Instruments—Credit Losses—Measured at Amortized Cost. The guidance in the ASU is effective for all periods beginning after December 15, 2022 with early application permitted and may be applied prospectively. The Company does not currently have any financial instruments that meet the definition of a TDR. As a result, the implementation of this guidance is not expected to have a material effect on the Company’s consolidated financial statements.

Lease Intangibles

Upon acquisitions of real estate (Note 2), the Company assesses the fair value of acquired assets (including land, buildings and improvements, and identified intangibles such as above- and below-market leases, including below-market options and acquired in-place leases) and assumed liabilities. The lease intangibles are amortized over the remaining terms of the respective leases, including option periods where applicable.

Earnings Per Common Share

Basic earnings per Common Share is computed by dividing net income attributable to Common Shareholders by the weighted-average Common Shares outstanding (Note 10). During the periods presented, the Company had unvested LTIP Units which provide for non-forfeitable rights to dividend equivalent payments. Accordingly, these unvested LTIP Units are considered participating securities and are included in the computation of basic earnings per Common Share pursuant to the two-class method.

Diluted earnings per Common Share reflects the potential dilution of the conversion of obligations and the assumed exercises of securities including the effects of Restricted Share Units issued under the Company’s Share Incentive Plans (Note 13). The effect of such shares is excluded from the calculation of earnings per share when anti-dilutive as indicated in the table below.

The effect of the conversion of Common OP Units is not reflected in the computation of basic and diluted earnings per share, as they are exchangeable for Common Shares on a one-for-one basis. The income allocable to such units is allocated on this same basis and reflected as noncontrolling interests in the accompanying consolidated financial statements. As such, the assumed conversion of these units would have no net impact on the determination of diluted earnings per share.