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Debt - Outstanding Debt (Details) - USD ($)
$ in Thousands
Oct. 31, 2021
Jan. 31, 2021
Debt Instrument [Line Items]    
Total debt $ 1,848,209 $ 1,795,014
Less: current debt (1,212,215) (1,103,101)
Total debt, noncurrent 635,994 691,913
Term Loan    
Debt Instrument [Line Items]    
Unamortized debt discount 1,379 1,682
Unamortized debt issuance costs 127 155
Total debt 701,619 729,413
2022 Notes    
Debt Instrument [Line Items]    
Unamortized debt discount 0 79,562
Unamortized debt issuance costs 3,261 4,771
Total debt $ 1,146,590 $ 1,065,601