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Investment in Nikola - Additional Information (Detail) - USD ($)
12 Months Ended
Jun. 03, 2020
May 31, 2022
May 31, 2021
Marketable Securities [Line Items]      
Gains on investment in Nikola     $ 655,102,000
Proceeds from sale of Nikola shares     634,449,000
Charitable contribution of Nikola shares     20,653,000
Nikola Corporation      
Marketable Securities [Line Items]      
Marketable securities effective date   Jun. 03, 2020  
Marketable securities number of shares owned 19,048,020    
Gains on investment in Nikola     655,102,000
Proceeds from sale of Nikola shares     634,449,000
Charitable contribution of Nikola shares     20,653,000
Incremental expenses on gains from marketable securities     50,624,000
Profit sharing and bonus expense on marketable securities gain     29,971,000
Marketable securities contribution expense     $ 20,653,000