Basis of Presentation	6 Months Ended
Jun. 30, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	1. Basis of Presentation Sun Communities, Inc., and all wholly-owned or majority-owned and controlled subsidiaries, including Sun Communities Operating Limited Partnership (the "Operating Partnership"), Sun Home Services, Inc. ("SHS"), and our Park Holidays subsidiaries and the other entities through which we operate our business in the United Kingdom ("UK") are referred to herein as the "Company," "SUI," "us," "we," or "our." We have elected to be taxed as a real estate investment trust ("REIT") pursuant to Section 856(c) of the Internal Revenue Code of 1986, as amended ("Code"). We analyzed the various REIT tests and confirmed that we continued to qualify as a REIT during the three and six months ended June 30, 2026. We follow accounting standards set by the Financial Accounting Standards Board ("FASB"). FASB establishes accounting principles generally accepted in the United States of America ("GAAP"), which we follow to ensure that we consistently report our financial condition, results of operations, and cash flows. References to GAAP issued by the FASB in these footnotes are to the FASB Accounting Standards Codification ("ASC"). These unaudited Condensed Consolidated Financial Statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission ("SEC") for interim financial information and in accordance with GAAP. We present interim disclosures and certain information and footnote disclosures as required by SEC rules and regulations. Accordingly, the unaudited Condensed Consolidated Financial Statements do not include all of the information and footnotes required by GAAP for complete financial statements. The accompanying unaudited Condensed Consolidated Financial Statements reflect, in the opinion of management, all adjustments, including adjustments of a normal and recurring nature, necessary for a fair presentation of the interim financial statements. All significant intercompany transactions have been eliminated in consolidation. The results of operations for interim periods are not necessarily indicative of results that may be expected for any other interim period or for the full year. These unaudited Condensed Consolidated Financial Statements should be read in conjunction with the Consolidated Financial Statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2025 as filed with the SEC on February 25, 2026 (our "2025 Annual Report"). These statements have been prepared on a basis that is substantially consistent with the accounting principles applied in our 2025 Annual Report. Real Estate Held for Sale and Discontinued Operations We classify real estate assets or businesses as held for sale after an active program to sell an asset has commenced and when the sale is probable. Subsequent to the classification of assets as held for sale, no further depreciation expense is recorded. Assets or businesses classified as held for sale are recorded at the lower of the respective carrying amount and estimated fair value less costs to sell. When the carrying amount of the assets or business exceed the estimated fair value less costs to sell, a loss is recognized and updated each reporting period, as appropriate. We present businesses or components whose disposal represents a strategic shift that has, or will have, a major effect on our operations and financial results as discontinued operations when the components meet the criteria for held for sale, are sold, or spun-off under ASC 205-20, "Presentation of Financial Statements: Discontinued Operations." In May 2026, we entered into a definitive agreement to sell all of the outstanding equity of our UK subsidiaries to Panther Bidco Limited (the "Park Holidays Sale") for a base consideration amount of £785.7 million (or approximately $1.04 billion). The transaction consideration will be payable in cash and is subject to certain customary locked box adjustments, inclusive of the cash profits of Park Holidays up to the completion of the transaction. The Park Holidays Sale represents the expected disposition of our UK business and a strategic shift in operations. Accordingly, the results of the UK business and assets and liabilities included in the disposition are presented as held for sale and as discontinued operations for all periods presented herein. Certain reclassifications have been made to prior period financial statements and related notes in order to conform to current period presentation. In February 2025, we entered into a definitive agreement to sell our former Safe Harbor Marinas, LLC subsidiary ("Safe Harbor") for an aggregate purchase price of approximately $5.65 billion, subject to certain adjustments (the "Safe Harbor Sale"). The Safe Harbor Sale represented the sale of our former marina business and a strategic shift in operations. Accordingly, the results of the Safe Harbor business have been reflected as discontinued operations on our Condensed Consolidated Statements of Operations through the final transaction closing date of August 29, 2025. Unless otherwise noted, the information disclosed in Note 3 through Note 17 refer only to our continuing operations and do not include discussion of balances or activity related to the UK and Safe Harbor businesses, which are each included within discontinued operations. Refer to Note 2, "Assets Held for Sale and Discontinued Operations," for additional information. Reportable Segments As a result of the Park Holidays Sale, we have revised our reporting structure from a three-segment to a two-segment structure, effective during the three months ended June 30, 2026, which consists of (i) manufactured home ("MH") communities and (ii) recreational vehicle ("RV") communities. The new structure removes the UK business from our operating segments in conjunction with its classification as a discontinued operation and reflects how the chief operating decision maker manages the business, makes operating decisions, allocates resources, and evaluates operating performance. Beginning with the three months ended June 30, 2026, we are reporting our financial results consistent with our newly realigned operating segments and have recast prior period amounts to conform to the way we internally manage our business and monitor segment performance. Refer to Note 10, "Segment Reporting" for additional information.

Sun Communities, Inc., and all wholly-owned or majority-owned and controlled subsidiaries, including Sun Communities Operating Limited Partnership (the "Operating Partnership"), Sun Home Services, Inc. ("SHS"), and our Park Holidays subsidiaries and the other entities through which we operate our business in the United Kingdom ("UK") are referred to herein as the "Company," "SUI," "us," "we," or "our."

We have elected to be taxed as a real estate investment trust ("REIT") pursuant to Section 856(c) of the Internal Revenue Code of 1986, as amended ("Code"). We analyzed the various REIT tests and confirmed that we continued to qualify as a REIT during the three and six months ended June 30, 2026.

We follow accounting standards set by the Financial Accounting Standards Board ("FASB"). FASB establishes accounting principles generally accepted in the United States of America ("GAAP"), which we follow to ensure that we consistently report our financial condition, results of operations, and cash flows. References to GAAP issued by the FASB in these footnotes are to the FASB Accounting Standards Codification ("ASC"). These unaudited Condensed Consolidated Financial Statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission ("SEC") for interim financial information and in accordance with GAAP. We present interim disclosures and certain information and footnote disclosures as required by SEC rules and regulations. Accordingly, the unaudited Condensed Consolidated Financial Statements do not include all of the information and footnotes required by GAAP for complete financial statements. The accompanying unaudited Condensed Consolidated Financial Statements reflect, in the opinion of management, all adjustments, including adjustments of a normal and recurring nature, necessary for a fair presentation of the interim financial statements. All significant intercompany transactions have been eliminated in consolidation.

The results of operations for interim periods are not necessarily indicative of results that may be expected for any other interim period or for the full year. These unaudited Condensed Consolidated Financial Statements should be read in conjunction with the Consolidated Financial Statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2025 as filed with the SEC on February 25, 2026 (our "2025 Annual Report"). These statements have been prepared on a basis that is substantially consistent with the accounting principles applied in our 2025 Annual Report.

We classify real estate assets or businesses as held for sale after an active program to sell an asset has commenced and when the sale is probable. Subsequent to the classification of assets as held for sale, no further depreciation expense is recorded. Assets or businesses classified as held for sale are recorded at the lower of the respective carrying amount and estimated fair value less costs to sell. When the carrying amount of the assets or business exceed the estimated fair value less costs to sell, a loss is recognized and updated each reporting period, as appropriate. We present businesses or components whose disposal represents a strategic shift that has, or will have, a major effect on our operations and financial results as discontinued operations when the components meet the criteria for held for sale, are sold, or spun-off under ASC 205-20, "Presentation of Financial Statements: Discontinued Operations."

In May 2026, we entered into a definitive agreement to sell all of the outstanding equity of our UK subsidiaries to Panther Bidco Limited (the "Park Holidays Sale") for a base consideration amount of £785.7 million (or approximately $1.04 billion). The transaction consideration will be payable in cash and is subject to certain customary locked box adjustments, inclusive of the cash profits of Park Holidays up to the completion of the transaction. The Park Holidays Sale represents the expected disposition of our UK business and a strategic shift in operations. Accordingly, the results of the UK business and assets and liabilities included in the disposition are presented as held for sale and as discontinued operations for all periods presented herein. Certain reclassifications have been made to prior period financial statements and related notes in order to conform to current period presentation.

In February 2025, we entered into a definitive agreement to sell our former Safe Harbor Marinas, LLC subsidiary ("Safe Harbor") for an aggregate purchase price of approximately $5.65 billion, subject to certain adjustments (the "Safe Harbor Sale"). The Safe Harbor Sale represented the sale of our former marina business and a strategic shift in operations. Accordingly, the results of the Safe Harbor business have been reflected as discontinued operations on our Condensed Consolidated Statements of Operations through the final transaction closing date of August 29, 2025.

Unless otherwise noted, the information disclosed in Note 3 through Note 17 refer only to our continuing operations and do not include discussion of balances or activity related to the UK and Safe Harbor businesses, which are each included within discontinued operations. Refer to Note 2, "Assets Held for Sale and Discontinued Operations," for additional information.

As a result of the Park Holidays Sale, we have revised our reporting structure from a three-segment to a two-segment structure, effective during the three months ended June 30, 2026, which consists of (i) manufactured home ("MH") communities and (ii) recreational vehicle ("RV") communities. The new structure removes the UK business from our operating segments in conjunction with its classification as a discontinued operation and reflects how the chief operating decision maker manages the business, makes operating decisions, allocates resources, and evaluates operating performance. Beginning with the three months ended June 30, 2026, we are reporting our financial results consistent with our newly realigned operating segments and have recast prior period amounts to conform to the way we internally manage our business and monitor segment performance. Refer to Note 10, "Segment Reporting" for additional information.