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Restructuring Activities (Narrative) (Details) - USD ($) $ in Thousands | 6 Months Ended |  |
--- | --- | --- | ---
Nov. 28, 2020 | May 30, 2020 | May 25, 2019
Restructuring Cost and Reserve [Line Items] |  |  |
Impairment of operating right-of-use assets | $ 650 |  |
North America And Asia Pacific Plan [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring costs incurred to date | 6,800 |  |
Restructuring liability | 1,100 |  |
European Plan [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring costs incurred to date | 6,000 |  |
Employee Termination Costs [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring liability | 5,302 | $ 1,874 |
Employee Termination Costs [Member] | North America And Asia Pacific Plan [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring costs incurred to date | 5,000 |  |
Employee Termination Costs [Member] | European Plan [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring costs incurred to date | 5,300 |  |
Expected restructuring costs | 100 |  |
Restructuring liability | 4,200 |  |
Real Estate Exit Costs [Member] | North America And Asia Pacific Plan [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Impairment of operating right-of-use assets | 1,800 |  |
Real Estate Exit Costs [Member] | European Plan [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring costs incurred to date | 700 |  |
Impairment Of Operating Right Of Use Assets [Member] | North America And Asia Pacific Plan [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Impairment of operating right-of-use assets | 1,300 |  |
Gain Loss On Disposal Of Fixed Assets [Member] | North America And Asia Pacific Plan [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring costs incurred to date | $ 500 |  |

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