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Fair Value Measurements - Derivative instruments at fair value (Details) - USD ($)
$ in Thousands
Jul. 31, 2025
Jan. 31, 2025
Fair Value Measurements    
Equity derivative contracts $ 19,766 $ 26,372
Contingent consideration 7,387 8,674
Level 2    
Fair Value Measurements    
Equity derivative contracts 19,766 26,372
Level 3    
Fair Value Measurements    
Contingent consideration $ 7,387 $ 8,674