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Organization, Basis of Presentation, and Summary of Significant Accounting Policies - Fair Value of Assets and Liabilities (Details) - USD ($)
$ in Thousands
Nov. 24, 2019
May 26, 2019
Assets:    
Investment in non-public company $ 61,300 $ 61,100
Fair Value, Measurements, Recurring | Level 1    
Assets:    
Interest rate swap contracts 0 0
Investment in non-public company 0 0
Total assets 0 0
Liabilities:    
Interest rate swap contracts 0 0
Contingent consideration liability 0 0
Total liabilities 0 0
Fair Value, Measurements, Recurring | Level 2    
Assets:    
Interest rate swap contracts 161 644
Investment in non-public company 0 0
Total assets 161 644
Liabilities:    
Interest rate swap contracts 710 482
Contingent consideration liability 0 0
Total liabilities 710 482
Fair Value, Measurements, Recurring | Level 3    
Assets:    
Interest rate swap contracts 0 0
Investment in non-public company 61,300 61,100
Total assets 61,300 61,100
Liabilities:    
Interest rate swap contracts 0 0
Contingent consideration liability 0 500
Total liabilities $ 0 $ 500