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Restructuring Costs - Narrative (Details) - USD ($)
 3 Months Ended 9 Months Ended 12 Months Ended
Feb. 28, 2021
May 31, 2020
Feb. 27, 2022
May 29, 2022
May 30, 2021
May 31, 2020
Restructuring Cost and Reserve [Line Items]            
Proceeds from sales of property and equipment     $ 1,096,000 $ 1,141,000 $ 12,913,000 $ 2,434,000
Operating lease, impairment loss         1,700,000  
Expected restructuring costs       23,000,000    
BreatheWay            
Restructuring Cost and Reserve [Line Items]            
Impairment of long-lived assets to be disposed of       0    
Equipment | BreatheWay            
Restructuring Cost and Reserve [Line Items]            
Impairment of long-lived assets to be disposed of $ 1,900,000 $ 1,900,000        
Santa Maria Office            
Restructuring Cost and Reserve [Line Items]            
Impairment of long-lived assets to be disposed of       3,700,000    
Impairment of leasehold       5,300,000    
Operating lease, impairment loss       $ 1,600,000    
San Rafael            
Restructuring Cost and Reserve [Line Items]            
Impairment of long-lived assets to be disposed of         400,000  
Proceeds from sales of property and equipment         $ 2,400,000