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Credit Agreement and Debt - Schedule of Long Term Debt in the Accompanying Condensed Consolidated Balance Sheets (Parenthetical) (Detail)
6 Months Ended 12 Months Ended
Jul. 31, 2021
Jan. 31, 2021
Term Loan Due September 30, 2025 [Member]    
Debt Instrument [Line Items]    
Debt instrument, description of variable rate basis 2.60% as of July 31, 2021); maturity date of September 30, 2025  
Interest rate 2.60%  
Debt instrument, maturity date Sep. 30, 2025  
Term Loan Due January 31, 2021 [Member]    
Debt Instrument [Line Items]    
Debt instrument, description of variable rate basis   4.65% as of January 31, 2021
Interest rate   4.65%