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Financial Risk Management and Financial Instruments - Additional Information (Details)
$ in Thousands
 12 Months Ended
May 31, 2022
USD ($)
May 31, 2021
USD ($)
Financial Risk Management And Financial Instrument [Line Items]    
Long-term debt, subject to fixed interest rates $ 17,839 $ 20,358
Allowance for doubtful accounts $ 5,404 $ 4,571
Hypothetical decrease in fair value of investments 10.00%  
Estimated decrease in fair values of investments upon hypothetical decrease of 10% in the prices $ 12,123  
Hypothetical increase in common stock 10.00%  
Estimated increase in fair values of warrant liability upon hypothetical increase of 10% in the price of common stock $ 1,787  
Discount Rate    
Financial Risk Management And Financial Instrument [Line Items]    
Business combination, contingent consideration, liability, measurement input 0.05  
Business combination contingent consideration,Probability achievement 25.00%