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Goodwill and Intangible Assets - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
May 31, 2021
May 31, 2020
Feb. 28, 2021
Finite-Lived Intangible Assets [Line Items]      
Amortization of trade names, customer lists, and patent $ 2,091 $ 1,972  
Goodwill acquired     $ 6,120
Infoseal LLC [Member]      
Finite-Lived Intangible Assets [Line Items]      
Goodwill acquired     $ 6,100