Description of Business and Basis of Presentation (Policies) |
3 Months Ended |
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Aug. 29, 2026 | |
| Organization, Consolidation and Presentation of Financial Statements [Abstract] | |
| Basis of Presentation | Basis of Presentation The Condensed Consolidated Financial Statements have been prepared by MillerKnoll, Inc. in accordance with accounting principles generally accepted in the United States of America ("U.S. GAAP") for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. Management believes the disclosures made in this document are adequate with respect to interim reporting requirements. Unless otherwise noted or indicated by the context, all references to "MillerKnoll," "we," "our," "Company" and similar references are to MillerKnoll, Inc., its predecessors, and controlled subsidiaries. The accompanying unaudited Condensed Consolidated Financial Statements, taken as a whole, contain all adjustments that are of a normal recurring nature necessary to present fairly the financial position of the Company as of August 29, 2026. Operating results for the three months ended August 29, 2026, are not necessarily indicative of the results that may be expected for the year ending May 29, 2027 ("fiscal 2027"). These Condensed Consolidated Financial Statements should be read in conjunction with the financial statements and notes thereto included in the Company's Annual Report on Form 10-K for the year ended May 30, 2026 ("fiscal 2026").
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| Intercompany Transactions | All intercompany transactions have been eliminated in the Condensed Consolidated Financial Statements. |
| Fiscal Period | The Company's fiscal year is the 52 or 53 week period ending on the Saturday closest to May 31. The fiscal year ending May 29, 2027 ("fiscal 2027") and the fiscal year ended May 30, 2026 ("fiscal 2026") both contain 52 weeks. |
| Recently Issued Accounting Standards Not Yet Adopted | Recently Issued Accounting Standards Not Yet Adopted ASU 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses. In November 2024, the FASB issued this ASU which requires disclosure on an annual and interim basis, in the notes to the financial statements, of disaggregated information about specific categories underlying certain income statement expense line items. In January 2025, the FASB additionally issued ASU 2025-01, which clarified the effective date of ASU 2024-03 for entities that do not have a calendar year-end. The update will be effective for the Company's annual financial statements for fiscal 2028 and interim financial statements beginning in fiscal 2029, with early adoption permitted. The Company expects the adoption of this guidance will modify our disclosures, but we do not expect it to have a material effect on our financial position, results of operations, or cash flows. The Company has evaluated all other recently issued accounting standards not yet adopted and determined that they are either not applicable or are not expected to have a material impact on the Company's consolidated financial statements
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| Cash and Cash Equivalents | Certain of the Company’s subsidiaries participate in a notional cash pooling arrangement to manage global liquidity. Under the arrangement, participating accounts are maintained with the same financial institution and balances are subject to a master netting agreement that permits offsetting of cash balances and overdraft positions. Because the Company has the legal right, ability and intent to offset participating account balances, cash balances and overdraft positions are presented on a net basis. The resulting net cash pool position is included in Cash and cash equivalents in the accompanying Condensed Consolidated Balance Sheets. |
| Inventories | Inventories are valued primarily using the first-in first-out method. |
| Goodwill | Goodwill Goodwill is tested for impairment at the reporting unit level annually, or more frequently when events or changes in circumstances indicate that the fair value of a reporting unit has more likely than not declined below its carrying value. When testing goodwill for impairment, the Company may first assess qualitative factors. If an initial qualitative assessment identifies that it is more likely than not that the carrying value of a reporting unit exceeds its estimated fair value, additional quantitative testing is performed. The Company may also elect to bypass the qualitative testing and proceed directly to the quantitative testing. If the quantitative testing indicates that goodwill is impaired, the carrying value of goodwill is written down to fair value.
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| Share-Based Compensation | Certain of the Company's equity-based compensation awards contain provisions that allow for continued vesting into retirement. Stock-based awards are considered fully vested for expense attribution purposes when the employee's retention of the award is no longer contingent on providing subsequent service. Stock-based compensation expense is recorded within Selling, general and administrative expenses on the Condensed Consolidated Statements of Comprehensive Income (Loss).
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| Derivative Instruments and Hedging Activities | Derivative Instruments and Hedging Activities Foreign Currency Forward Contracts The Company transacts business in various foreign currencies and has established a program that primarily utilizes foreign currency forward contracts to offset the risks associated with the effects of certain foreign currency exposures. Under this program, the Company's strategy is to have increases or decreases in our foreign currency exposures offset by gains or losses on the foreign currency forward contracts to mitigate the risks and volatility associated with foreign currency transaction gains or losses. These foreign currency exposures typically arise from net liability or asset exposures in non-functional currencies on the balance sheets of our foreign subsidiaries. These foreign currency forward contracts generally settle within 30 days and are not used for trading purposes. These forward contracts are not designated as hedging instruments. Accordingly, we record the fair value of these contracts as of the end of the reporting period in the Condensed Consolidated Balance Sheets with changes in fair value recorded within the Condensed Consolidated Statements of Comprehensive Income. The balance sheet classification for the fair values of these forward contracts is Other current assets for unrealized gains and Other accrued liabilities for unrealized losses. The Condensed Consolidated Statements of Comprehensive Income classification for the fair values of these forward contracts is to Other (income) expense, net, for both realized and unrealized gains and losses. Interest Rate Swaps The Company uses interest rate swap agreements designated as cash flow hedges to manage its exposure to variability in cash flows associated with variable-rate debt. The Company's interest rate swaps continue to qualify for cash flow hedge accounting as of August 29, 2026. As of August 29, 2026, the Company had interest rate swap agreements with an aggregate notional amount outstanding of
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