The Company and Financial Statement Presentation (Policies)	3 Months Ended
Mar. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and Consolidation	Basis of Presentation and Consolidation. The Company's unaudited condensed consolidated financial statements are prepared on the accrual basis of accounting in accordance with GAAP. The financial statements reflect the accounts of the Company and its consolidated subsidiaries.
Variable Interest Entity	The Company consolidates wholly-owned subsidiaries, partnerships and joint ventures which it controls (i) through voting rights or similar rights or (ii) by means other than voting rights if the Company is the primary beneficiary of a variable interest entity ("VIE"). Entities which the Company does not control and entities which are VIEs in which the Company is not a primary beneficiary are accounted for under appropriate GAAP.
Use of Estimates	Use of Estimates. Management has made a number of significant estimates and assumptions relating to the reporting of assets and liabilities, the disclosure of contingent assets and liabilities and the reported amounts of revenues and expenses to prepare these unaudited condensed consolidated financial statements in conformity with GAAP. These estimates and assumptions are based on management's best estimates and judgment. Management evaluates its estimates and assumptions on an ongoing basis using historical experience and other factors, including the current economic environment. Management adjusts such estimates when facts and circumstances dictate. The most significant estimates made include the recoverability of current and deferred accounts receivable, allocation of property purchase price to tangible and intangible assets acquired and liabilities assumed, the determination of VIEs and which entities should be consolidated, the determination of impairment of long-lived assets and equity method investments, valuation of derivative financial instruments, valuation of awards granted under compensation plans, the determination of the incremental borrowing rate for leases where the Company is the lessee, the determination of the term and fair value of sales-type leases, the estimated credit losses for investments in sales-type leases and the useful lives of long-lived assets. Actual results could differ materially from those estimates.
Reclassifications	Reclassifications. Certain amounts included in the 2023 unaudited condensed consolidated financial statements have been reclassified to conform to the 2024 presentation.
Recently Issued Accounting Guidance	Recently Issued Accounting Guidance. In November 2023, the Financial Accounting Standards Board ("FASB") issued ASU 2023-07, Improvements to Reportable Segment Disclosures (Topic 280). ASU 2023-07 requires disclosure of significant segment expenses that are regularly provided to the chief operating decision maker (“CODM”) and included within the segment measure of profit or loss, an amount and description of its composition for other segment items to reconcile to segment profit or loss, and the title and position of the entity's CODM. ASU 2023-07 will be effective retrospectively for fiscal years beginning after December 15, 2023 and interim periods beginning after December 15, 2024. The Company will continue to evaluate the impact of the guidance on its consolidated financial statements. In December 2023, the FASB issued ASU 2023-09, Improvements to Income Tax Disclosures that requires public companies to annually (1) disclose specific categories in the rate reconciliation and (2) provide additional information for reconciling items that meet a quantitative threshold (if the effect of those reconciling items is equal to or greater than five percent of the amount computed by multiplying pretax income or loss by the applicable statutory income tax rate). The ASU is effective for annual periods beginning after December 15, 2024. The Company is currently evaluating the impact of the guidance until it becomes effective. In March 2024, the U.S. Securities and Exchange Commission ("SEC") adopted the final rule under SEC Release No. 33-11275, The Enhancement and Standardization of Climate-Related Disclosures for Investors. This rule will require registrants to disclose certain climate-related information in registration statements and annual reports. In April 2024, the SEC voluntarily stayed the effectiveness of the new rules pending related litigation. If the stay is lifted and the effective times are unchanged, certain of the disclosure requirements will begin to apply to the Company's fiscal year beginning January 1, 2025. The Company is currently evaluating the final rule to determine its impact on the Company's disclosures.
Lessor	Lessor Operating Leases. The Company’s lease portfolio as a lessor primarily includes general purpose, single-tenant net-leased real estate assets. Most of the Company’s leases require tenants to pay fixed annual rental payments that escalate on an annual basis and variable payments for other operating expenses, such as real estate taxes, insurance, common area maintenance ("CAM"), and utilities, that are based on the actual expenses incurred. Certain leases allow for the tenant to renew the lease term upon expiration or earlier. Periods covered by a renewal option are included within the lease term only when renewals are deemed to be reasonably certain. Certain leases allow for the tenant to terminate the lease before the expiration of the lease term and certain leases provide the tenant with the right to purchase the leased property at fair market value or a stipulated price upon expiration of the lease term or before. Accounting guidance under ASC 842 requires the Company to make certain assumptions and judgments in applying the guidance, including determining whether an arrangement includes a lease and determining the lease term when the contract has renewal, purchase or early termination provisions. The Company analyzes its accounts receivable, customer creditworthiness and current economic trends when evaluating the adequacy of the collectability of the lessee's total accounts receivable balance on a lease by lease basis. In addition, tenants in bankruptcy are analyzed and considerations are made in connection with the expected pre-petition and post-petition claims. If a lessee's accounts receivable balance is considered uncollectible, the Company will write-off the receivable balances associated with the lease to rental revenue and cease to recognize lease income, including straight-line rent, unless cash is received. If the Company subsequently determines that it is probable it will collect substantially all of the lessee's remaining lease payments under the lease term; the Company will reinstate the straight-line balance adjusting for the amount related to the period when the lease was accounted for on a cash basis. The Company elected that the lease and non-lease components in its leases are a single lease component, which is, therefore, being recognized as rental revenue in its unaudited condensed consolidated statements of operations. The primary non-lease service included within rental revenue is CAM services provided as part of the Company’s real estate leases. ASC 842 requires that the Company capitalize, as initial direct costs, only those costs that are incurred due to the execution of a lease. For the three months ended March 31, 2024 and 2023, the Company did not incur any costs that were not incremental to the execution of leases. The Company manages the risk associated with the residual value of its leased properties by including contract clauses that make tenants responsible for surrendering the space in good condition upon lease termination, holding a diversified portfolio, and other activities. The Company does not have residual value guarantees on specific properties.
Lessee	Lessee The Company, as lessee, has ground leases, corporate leases for office space, and office equipment leases. All leases were classified as operating leases as of March 31, 2024. The leases have remaining lease terms of up to 33 years. Renewal periods are included in the lease term only when renewal is deemed to be reasonably certain. The lease term also includes periods covered by an option to terminate the lease if the Company is reasonably certain not to exercise the termination option. The Company measures its lease payments by including fixed rental payments and variable rental payments that tie to an index or a rate, such as CPI. The Company recognizes lease expense for its operating leases on a straight-line basis over the lease term and variable lease expense not included in the lease payment measurement as incurred. The accounting guidance under ASC 842 requires the Company to make certain assumptions and judgments in applying the guidance, including determining whether an arrangement includes a lease, determining the term of a lease when the contract has renewal or termination provisions and determining the discount rate. The Company determines whether an arrangement is or includes a lease at contract inception by evaluating whether the contract conveys the right to control the use of an identified asset for a period of time in exchange for consideration. If the Company has the right to obtain substantially all of the economic benefits from and can direct the use of, the identified asset for a period of time, the Company accounts for the contract as a lease. The Company uses the information available at the lease commencement date to determine the discount rate for any new leases. The Company used a portfolio approach to determine its incremental borrowing rate. Lease contracts were grouped based on similar lease terms and economic environments in a manner in which the Company reasonably expects that the outcome from applying a portfolio approach does not differ materially from an individual lease approach. The Company estimated a collateralized discount rate for each portfolio of leases.

The Company and Financial Statement Presentation (Policies)

3 Months Ended

Mar. 31, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation and Consolidation. The Company's unaudited condensed consolidated financial statements are prepared on the accrual basis of accounting in accordance with GAAP. The financial statements reflect the accounts of the Company and its consolidated subsidiaries.

Variable Interest Entity

The Company consolidates wholly-owned subsidiaries, partnerships and joint ventures which it controls (i) through voting rights or similar rights or (ii) by means other than voting rights if the Company is the primary beneficiary of a variable interest entity ("VIE"). Entities which the Company does not control and entities which are VIEs in which the Company is not a primary beneficiary are accounted for under appropriate GAAP.

Use of Estimates

Use of Estimates. Management has made a number of significant estimates and assumptions relating to the reporting of assets and liabilities, the disclosure of contingent assets and liabilities and the reported amounts of revenues and expenses to prepare these unaudited condensed consolidated financial statements in conformity with GAAP. These estimates and assumptions are based on management's best estimates and judgment. Management evaluates its estimates and assumptions on an ongoing basis using historical experience and other factors, including the current economic environment. Management adjusts such estimates when facts and circumstances dictate. The most significant estimates made include the recoverability of current and deferred accounts receivable, allocation of property purchase price to tangible and intangible assets acquired and liabilities assumed, the determination of VIEs and which entities should be consolidated, the determination of impairment of long-lived assets and equity method investments, valuation of derivative financial instruments, valuation of awards granted under compensation plans, the determination of the incremental borrowing rate for leases where the Company is the lessee, the determination of the term and fair value of sales-type leases, the estimated credit losses for investments in sales-type leases and the useful lives of long-lived assets. Actual results could differ materially from those estimates.

Reclassifications

Reclassifications. Certain amounts included in the 2023 unaudited condensed consolidated financial statements have been reclassified to conform to the 2024 presentation.

Recently Issued Accounting Guidance

Recently Issued Accounting Guidance. In November 2023, the Financial Accounting Standards Board ("FASB") issued ASU 2023-07, Improvements to Reportable Segment Disclosures (Topic 280). ASU 2023-07 requires disclosure of significant segment expenses that are regularly provided to the chief operating decision maker (“CODM”) and included within the segment measure of profit or loss, an amount and description of its composition for other segment items to reconcile to segment profit or loss, and the title and position of the entity's CODM. ASU 2023-07 will be effective retrospectively for fiscal years beginning after December 15, 2023 and interim periods beginning after December 15, 2024. The Company will continue to evaluate the impact of the guidance on its consolidated financial statements.

In December 2023, the FASB issued ASU 2023-09, Improvements to Income Tax Disclosures that requires public companies to annually (1) disclose specific categories in the rate reconciliation and (2) provide additional information for reconciling items that meet a quantitative threshold (if the effect of those reconciling items is equal to or greater than five percent of the amount computed by multiplying pretax income or loss by the applicable statutory income tax rate). The ASU is effective for annual periods beginning after December 15, 2024. The Company is currently evaluating the impact of the guidance until it becomes effective.

In March 2024, the U.S. Securities and Exchange Commission ("SEC") adopted the final rule under SEC Release No. 33-11275, The Enhancement and Standardization of Climate-Related Disclosures for Investors. This rule will require

registrants to disclose certain climate-related information in registration statements and annual reports. In April 2024, the SEC voluntarily stayed the effectiveness of the new rules pending related litigation. If the stay is lifted and the effective times are unchanged, certain of the disclosure requirements will begin to apply to the Company's fiscal year beginning January 1, 2025. The Company is currently evaluating the final rule to determine its impact on the Company's disclosures.

Lessor

Operating Leases. The Company’s lease portfolio as a lessor primarily includes general purpose, single-tenant net-leased real estate assets. Most of the Company’s leases require tenants to pay fixed annual rental payments that escalate on an annual basis and variable payments for other operating expenses, such as real estate taxes, insurance, common area maintenance ("CAM"), and utilities, that are based on the actual expenses incurred.

Certain leases allow for the tenant to renew the lease term upon expiration or earlier. Periods covered by a renewal option are included within the lease term only when renewals are deemed to be reasonably certain. Certain leases allow for the tenant to terminate the lease before the expiration of the lease term and certain leases provide the tenant with the right to purchase the leased property at fair market value or a stipulated price upon expiration of the lease term or before.

Accounting guidance under ASC 842 requires the Company to make certain assumptions and judgments in applying the guidance, including determining whether an arrangement includes a lease and determining the lease term when the contract has renewal, purchase or early termination provisions.

The Company analyzes its accounts receivable, customer creditworthiness and current economic trends when evaluating the adequacy of the collectability of the lessee's total accounts receivable balance on a lease by lease basis. In addition, tenants in bankruptcy are analyzed and considerations are made in connection with the expected pre-petition and post-petition claims. If a lessee's accounts receivable balance is considered uncollectible, the Company will write-off the receivable balances associated with the lease to rental revenue and cease to recognize lease income, including straight-line rent, unless cash is received. If the Company subsequently determines that it is probable it will collect substantially all of the lessee's remaining lease payments under the lease term; the Company will reinstate the straight-line balance adjusting for the amount related to the period when the lease was accounted for on a cash basis.

The Company elected that the lease and non-lease components in its leases are a single lease component, which is, therefore, being recognized as rental revenue in its unaudited condensed consolidated statements of operations. The primary non-lease service included within rental revenue is CAM services provided as part of the Company’s real estate leases. ASC 842 requires that the Company capitalize, as initial direct costs, only those costs that are incurred due to the execution of a lease. For the three months ended March 31, 2024 and 2023, the Company did not incur any costs that were not incremental to the execution of leases.

The Company manages the risk associated with the residual value of its leased properties by including contract clauses that make tenants responsible for surrendering the space in good condition upon lease termination, holding a diversified portfolio, and other activities. The Company does not have residual value guarantees on specific properties.

Lessee

The Company, as lessee, has ground leases, corporate leases for office space, and office equipment leases. All leases were classified as operating leases as of March 31, 2024. The leases have remaining lease terms of up to 33 years. Renewal periods are included in the lease term only when renewal is deemed to be reasonably certain. The lease term also includes periods covered by an option to terminate the lease if the Company is reasonably certain not to exercise the termination option. The Company measures its lease payments by including fixed rental payments and variable rental payments that tie to an index or a rate, such as CPI. The Company recognizes lease expense for its operating leases on a straight-line basis over the lease term and variable lease expense not included in the lease payment measurement as incurred.

The accounting guidance under ASC 842 requires the Company to make certain assumptions and judgments in applying the guidance, including determining whether an arrangement includes a lease, determining the term of a lease when the contract has renewal or termination provisions and determining the discount rate.

The Company determines whether an arrangement is or includes a lease at contract inception by evaluating whether the contract conveys the right to control the use of an identified asset for a period of time in exchange for consideration. If the Company has the right to obtain substantially all of the economic benefits from and can direct the use of, the identified asset for a period of time, the Company accounts for the contract as a lease.

The Company uses the information available at the lease commencement date to determine the discount rate for any new leases. The Company used a portfolio approach to determine its incremental borrowing rate. Lease contracts were grouped based on similar lease terms and economic environments in a manner in which the Company reasonably expects that the outcome from applying a portfolio approach does not differ materially from an individual lease approach. The Company estimated a collateralized discount rate for each portfolio of leases.