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Goodwill and Intangible Assets, Net - Future Amortization (Details) - USD ($)
$ in Thousands
Jan. 31, 2020
Jan. 31, 2019
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]    
2021 $ 13,818  
2022 8,370  
2023 6,023  
2024 6,023  
2025 6,023  
Thereafter 15,609  
Acquisition-related intangibles, net, excluding cumulative translation adjustment $ 55,866 $ 73,583