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Credit Agreement and Long- Term Debt - Schedule of Long Term Debt in the Accompanying Condensed Consolidated Balance Sheets (Parenthetical) (Detail)
12 Months Ended
Jan. 31, 2021
Term Loan Due June 15, 2022 [Member]  
Debt Instrument [Line Items]  
Debt instrument, description of variable rate basis 4.65% as of January 31, 2021); maturity date of June 15, 2022
Interest rate 4.65%
Debt instrument, maturity date Jun. 15, 2022
Term Loan Due November 30, 2022 [Member]  
Debt Instrument [Line Items]  
Interest rate 3.03%
Term Loan Due January 31, 2022 [Member]  
Debt Instrument [Line Items]  
Interest rate 3.03%