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Restructuring and Other Expense, Net - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Nov. 30, 2020
Nov. 30, 2020
Restructuring Cost and Reserve [Line Items]    
Net (gain) loss on sale of assets   $ 7,072
Cryogenics    
Restructuring Cost and Reserve [Line Items]    
Net proceeds from sale of business $ 21,223  
Net (gain) loss on sale of assets $ 7,072