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v3.25.3

Acquisitions and Divestitures - Narrative (Details) $ / shares in Units, $ in Millions |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended
--- | --- | --- | --- | --- | ---
Aug. 08, 2025 shares | Aug. 03, 2025 USD ($) day board_member $ / shares | Apr. 30, 2025 USD ($) | Sep. 27, 2025 USD ($) | Sep. 27, 2025 USD ($)
Other Assets |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |
Addition capitalized costs |  |  |  | $ 3.3 | $ 3.3
Prepaid Expenses and Other Current Assets |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |
Addition capitalized costs |  |  |  | 1.4 | 1.4
Equity Attributable to Parent |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |
Addition capitalized costs |  |  |  | 1.0 | 1.0
Selling, General and Administrative Expenses |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |
Acquisition related expenses |  |  |  | 8.3 |
Nonoperating Income (Expense) |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |
Acquisition related expenses |  |  |  | 1.4 |
Discontinued Operations, Disposed of by Sale | HNI India |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |
Gross cash proceeds related to sale |  |  | $ 9.5 |  |
Net of cash and transaction fees |  |  | 8.1 |  |
Pre-tax loss on the sale |  |  |  |  | $ 6.6
Foreign currency translation loss |  |  | 6.0 |  |
Transaction-related expenses |  |  | $ 0.6 |  |
Common Class A | Steelcase Inc |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |
Common stock, par value (in dollars per share) | $ / shares |  | $ 0 |  |  |
Common stock, shares outstanding (in shares) | shares | 114,717,466 |  |  |  |
Common Class B | Steelcase Inc |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |
Common stock, par value (in dollars per share) | $ / shares |  | 0 |  |  |
Common stock, shares outstanding (in shares) | shares | 0 |  |  |  |
Steelcase Inc |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |
Total consideration |  |  |  | $ 2,100.0 |
Common stock, par value (in dollars per share) | $ / shares |  | $ 1.00 |  |  |
Share conversion ratio |  | 0.2192 |  |  |
Mixed consideration (in dollars per share) | $ / shares |  | $ 7.20 |  |  |
Threshold consecutive trading days | day |  | 10 |  |  |
Increase in board members | board_member |  | 2 |  |  |
Number of board members | board_member |  | 12 |  |  |
Number of board members from aquiree | board_member |  | 2 |  |  |
Steelcase Inc | Line of Credit |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |
Borrowings |  | $ 925.0 |  |  |
Steelcase Inc | Minimum |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |
Termination fee payable |  | 71.0 |  |  |
Steelcase Inc | Maximum |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |
Termination fee payable |  | 134.0 |  |  |
Steelcase Inc | Steelcase Inc |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |
Termination fee payable |  | $ 67.0 |  |  |
Steelcase Inc | Common Class A | Steelcase Inc |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |
Total number of shares for cash consideration (in shares) | shares | 2,216,114 |  |  |  |
Steelcase Inc | Common Class B | Steelcase Inc |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |
Total number of shares for cash consideration (in shares) | shares | 2,216,114 |  |  |  |

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