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Impact of the COVID-19 Pandemic - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 4 Months Ended 6 Months Ended 12 Months Ended
Apr. 30, 2020
Jun. 30, 2020
Jul. 31, 2021
Jan. 31, 2021
Jul. 31, 2020
Mar. 31, 2020
Unusual Or Infrequent Item [Line Items]            
Outstanding under revolving facility       $ 21,230 $ 48,341  
Covid 19            
Unusual Or Infrequent Item [Line Items]            
Impairment charges related to goodwill $ 133,700          
Impairment charges related to intangible assets $ 22,200          
North America | Covid 19            
Unusual Or Infrequent Item [Line Items]            
Percentage of workforce furloughing   80.00%        
Revolving Credit Facility | Covid 19            
Unusual Or Infrequent Item [Line Items]            
Line of credit facility additional borrowing capacity           $ 30,900
Repayment of revolving credit facility     $ 21,100 $ 64,500    
Outstanding under revolving facility     $ 0