Basis of Presentation	6 Months Ended
Jun. 30, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The Unaudited Consolidated Financial Statements of Sekisui House U.S., Inc. (formerly known as M.D.C. Holdings, Inc.) ("SHUS," “the Company," "we," "us," or "our," which refer to Sekisui House U.S., Inc. and its subsidiaries) have been prepared, without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (the "SEC"). Accordingly, they do not include all information and footnotes required by U.S. generally accepted accounting principles ("GAAP") for complete financial statements. These statements reflect all normal and recurring adjustments which, in the opinion of management, are necessary to present fairly the financial position, results of operations and cash flows of SHUS at June 30, 2026 and for all periods presented. These statements should be read in conjunction with SHUS’s Consolidated Financial Statements and Notes thereto and the Combined Consolidated Financial Statements and Notes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2025. On December 1, 2025, Parent contributed (for no consideration) to the Company all of Parent’s interests in its wholly owned subsidiary Woodside Group, LLC ("Woodside"). Woodside is a homebuilding company with operations in Arizona, California, Idaho, Nevada and Utah. On January 1, 2026, Parent contributed (for no consideration) to the Company all of Parent’s interests in its wholly owned subsidiaries Chesmar Homes, LLC ("Chesmar") and Holt Group Holdings, LLC ("Holt"). Chesmar and Holt are homebuilding companies with operations in Texas, Oregon, and Washington. The Woodside Merger and Chesmar and Holt Merger are collectively referred to as the Common Control Mergers. Immediately prior to the contributions, the sole stockholder of the Company was also the sole stockholder of Woodside, Chesmar and Holt. As a result of the common ownership, upon closing of the transactions, the acquisitions were considered common-control transactions and were outside the scope of the business combination guidance in Accounting Standards Codification ("ASC") Topic 805, Business Combinations ("ASC 805-50"). The entities are deemed to be under common control as of April 19, 2024, which was the date that the sole stockholder acquired control of the Company and, therefore, held control over each of the companies. The consolidated financial statements incorporate Woodside, Chesmar and Holt financial results and financial information beginning on April 19, 2024. Included in these footnotes are certain statements that constitute "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements include statements regarding our business, financial condition, results of operations, cash flows, strategies and prospects. These forward-looking statements may be identified by terminology such as "likely," "may," "will," "should," "expects," "plans," "anticipates," "believes," "estimates," "predicts," "potential" or "continue," or the negative of such terms and other comparable terminology. Although we believe that the expectations reflected in the forward-looking statements contained in this section are reasonable, we cannot guarantee future results. These statements involve known and unknown risks, uncertainties and other factors that may cause the actual results, performance or achievements of the Company to be materially different from those expressed or implied by the forward-looking statements. We undertake no obligation to publicly update any forward-looking statements, whether as a result of new information, future events or otherwise. However, any further disclosures made on related subjects in subsequent reports on Forms 10-K, 10-Q and 8-K should be considered. Where necessary, reclassifications have been made to our prior period financial information to conform to the current year presentation.

The Unaudited Consolidated Financial Statements of Sekisui House U.S., Inc. (formerly known as M.D.C. Holdings, Inc.) ("SHUS," “the Company," "we," "us," or "our," which refer to Sekisui House U.S., Inc. and its subsidiaries) have been prepared, without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (the "SEC"). Accordingly, they do not include all information and footnotes required by U.S. generally accepted accounting principles ("GAAP") for complete financial statements. These statements reflect all normal and recurring adjustments which, in the opinion of management, are necessary to present fairly the financial position, results of operations and cash flows of SHUS at June 30, 2026 and for all periods presented. These statements should be read in conjunction with SHUS’s Consolidated Financial Statements and Notes thereto and the Combined Consolidated Financial Statements and Notes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2025.

On December 1, 2025, Parent contributed (for no consideration) to the Company all of Parent’s interests in its wholly owned subsidiary Woodside Group, LLC ("Woodside"). Woodside is a homebuilding company with operations in Arizona, California, Idaho, Nevada and Utah. On January 1, 2026, Parent contributed (for no consideration) to the Company all of Parent’s interests in its wholly owned subsidiaries Chesmar Homes, LLC ("Chesmar") and Holt Group Holdings, LLC ("Holt"). Chesmar and Holt are homebuilding companies with operations in Texas, Oregon, and Washington. The Woodside Merger and Chesmar and Holt Merger are collectively referred to as the Common Control Mergers.

Immediately prior to the contributions, the sole stockholder of the Company was also the sole stockholder of Woodside, Chesmar and Holt. As a result of the common ownership, upon closing of the transactions, the acquisitions were considered common-control transactions and were outside the scope of the business combination guidance in Accounting Standards Codification ("ASC") Topic 805, Business Combinations ("ASC 805-50"). The entities are deemed to be under common control as of April 19, 2024, which was the date that the sole stockholder acquired control of the Company and, therefore, held control over each of the companies. The consolidated financial statements incorporate Woodside, Chesmar and Holt financial results and financial information beginning on April 19, 2024.

Included in these footnotes are certain statements that constitute "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements include statements regarding our business, financial condition, results of operations, cash flows, strategies and prospects. These forward-looking statements may be identified by terminology such as "likely," "may," "will," "should," "expects," "plans," "anticipates," "believes," "estimates," "predicts," "potential" or "continue," or the negative of such terms and other comparable terminology. Although we believe that the expectations reflected in the forward-looking statements contained in this section are reasonable, we cannot guarantee future results. These statements involve known and unknown risks, uncertainties and other factors that may cause the actual results, performance or achievements of the Company to be materially different from those expressed or implied by the forward-looking statements. We undertake no obligation to publicly update any forward-looking statements, whether as a result of new information, future events or otherwise. However, any further disclosures made on related subjects in subsequent reports on Forms 10-K, 10-Q and 8-K should be considered.