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Restructuring and Integration Expense - Summary of Restructuring Expenses by Segment (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Dec. 03, 2022 | Nov. 27, 2021 | Dec. 03, 2022 | Nov. 27, 2021
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expense | $ 14.7 | $ 0.0 | $ 15.2 | $ 0.0
Americas Contract |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expense | 13.2 | 0.0 | 13.2 | 0.0
International Contract & Specialty |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expense | 0.7 | 0.0 | 0.7 | 0.0
Retail |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expense | 0.8 | 0.0 | 1.3 | 0.0
Knoll Integration |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expense | 4.1 | 40.2 | 8.7 | 95.8
Knoll Integration | Corporate |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expense | 2.0 | 20.3 | 3.0 | 74.9
Knoll Integration | Americas Contract | Operating Segments |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expense | 1.1 | 19.9 | 4.0 | 20.9
Knoll Integration | International Contract & Specialty | Operating Segments |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expense | 1.0 | 0.0 | 1.5 | 0.0
Knoll Integration | Retail | Operating Segments |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expense | $ 0.0 | $ 0.0 | $ 0.2 | $ 0.0

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