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INTANGIBLE ASSETS AND GOODWILL INTANGIBLE ASSETS AND GOODWILL - FUTURE AMORTIZATION OF INTANGIBLE ASSETS (Details) - USD ($)
$ in Thousands
3 Months Ended
Apr. 30, 2020
Apr. 30, 2019
Jan. 31, 2020
Intangible Assets - Future Amortization [Abstract]      
2021 (remainder of year) $ 36,856    
2022 45,885    
2023 37,978    
2024 27,805    
2025 11,754    
2026 and thereafter 22,225    
Intangible assets with finite lives, Net 182,503   $ 197,764
Impairment of Intangible Assets, Finite-lived $ 0 $ 0