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Restructuring and Integration Expense - Schedule of Restructuring Rollforward (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Nov. 27, 2021 | Nov. 28, 2020 | Nov. 27, 2021 | Nov. 28, 2020 | May 29, 2021
Changes in Restructuring Liability Balance [Roll Forward] |  |  |  |  |
Restructuring Costs | $ 0.0 | $ 2.4 | $ 0.0 | $ 1.2 |
Americas Contract |  |  |  |  |
Changes in Restructuring Liability Balance [Roll Forward] |  |  |  |  |
Restructuring Costs | 0.0 | 0.8 | 0.0 | 2.4 |
International Contract |  |  |  |  |
Changes in Restructuring Liability Balance [Roll Forward] |  |  |  |  |
Restructuring Costs | 0.0 | 1.6 | 0.0 | (1.2) |
Global Retail: |  |  |  |  |
Changes in Restructuring Liability Balance [Roll Forward] |  |  |  |  |
Restructuring Costs | 0.0 | 0.0 | 0.0 | 0.0 |
Knoll |  |  |  |  |
Changes in Restructuring Liability Balance [Roll Forward] |  |  |  |  |
Restructuring Costs | 0.0 | 0.0 | 0.0 | 0.0 |
Knoll Integration |  |  |  |  |
Changes in Restructuring Liability Balance [Roll Forward] |  |  |  |  |
Restructuring Costs | 24.6 | 0.0 | 95.8 | 0.0 |
Knoll Integration | Americas Contract |  |  |  |  |
Changes in Restructuring Liability Balance [Roll Forward] |  |  |  |  |
Restructuring Costs | 3.4 | 0.0 | 4.4 | 0.0 |
Knoll Integration | International Contract |  |  |  |  |
Changes in Restructuring Liability Balance [Roll Forward] |  |  |  |  |
Restructuring Costs | 0.6 | 0.0 | 0.6 | 0.0 |
Knoll Integration | Global Retail: |  |  |  |  |
Changes in Restructuring Liability Balance [Roll Forward] |  |  |  |  |
Restructuring Costs | 0.5 | 0.0 | 0.5 | 0.0 |
Knoll Integration | Knoll |  |  |  |  |
Changes in Restructuring Liability Balance [Roll Forward] |  |  |  |  |
Restructuring Costs | 11.6 | 0.0 | 56.5 | 0.0 |
Knoll Integration | Corporate |  |  |  |  |
Changes in Restructuring Liability Balance [Roll Forward] |  |  |  |  |
Restructuring Costs | 8.5 | $ 0.0 | 33.8 | $ 0.0 |
Other Restructuring Plans |  |  |  |  |
Changes in Restructuring Liability Balance [Roll Forward] |  |  |  |  |
Beginning balance |  |  | 1.5 |  |
Restructuring Costs |  |  | 0.0 |  |
Amounts Paid |  |  | (0.3) |  |
Ending balance | 1.2 |  | 1.2 |  | $ 1.5
Severance and Employee Benefit | Knoll Integration |  |  |  |  |
Changes in Restructuring Liability Balance [Roll Forward] |  |  |  |  |
Beginning balance |  |  | 0.0 |  |
Restructuring Costs |  |  | 46.4 |  |
Amounts Paid |  |  | (26.6) |  |
Non-cash costs |  |  | (14.2) |  |
Ending balance | 5.6 |  | 5.6 |  | 0.0
Severance and Employee Benefit | Other Restructuring Plans |  |  |  |  |
Changes in Restructuring Liability Balance [Roll Forward] |  |  |  |  |
Beginning balance |  |  | 0.9 |  |
Restructuring Costs |  |  | 0.0 |  |
Amounts Paid |  |  | (0.3) |  |
Ending balance | 0.6 |  | 0.6 |  | 0.9
Severance and Employee Benefit | May 2020 Restructuring Plan |  |  |  |  |
Changes in Restructuring Liability Balance [Roll Forward] |  |  |  |  |
Beginning balance |  |  | 1.0 |  |
Restructuring Costs |  |  | 0.0 |  | 3.4
Amounts Paid |  |  | (0.6) |  |
Ending balance | 0.4 |  | 0.4 |  | 1.0
Exit and Disposal Activities | Knoll Integration |  |  |  |  |
Changes in Restructuring Liability Balance [Roll Forward] |  |  |  |  |
Beginning balance |  |  | 0.0 |  |
Restructuring Costs |  |  | 15.5 |  |
Amounts Paid |  |  | 0.0 |  |
Non-cash costs |  |  | (15.5) |  |
Ending balance | 0.0 |  | 0.0 |  | 0.0
Exit and Disposal Activities | Other Restructuring Plans |  |  |  |  |
Changes in Restructuring Liability Balance [Roll Forward] |  |  |  |  |
Beginning balance |  |  | 0.6 |  |
Restructuring Costs |  |  | 0.0 |  |
Amounts Paid |  |  | 0.0 |  |
Ending balance | 0.6 |  | 0.6 |  | 0.6
Total | Knoll Integration |  |  |  |  |
Changes in Restructuring Liability Balance [Roll Forward] |  |  |  |  |
Beginning balance |  |  | 0.0 |  |
Restructuring Costs |  |  | 61.9 |  |
Amounts Paid |  |  | (26.6) |  |
Non-cash costs |  |  | (29.7) |  |
Ending balance | $ 5.6 |  | $ 5.6 |  | $ 0.0

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