v3.26.1
Goodwill and Intangible Assets - Goodwill (Details) - USD ($)
$ in Thousands
3 Months Ended
Jul. 31, 2026
Apr. 30, 2026
Goodwill [Roll Forward]    
Balance, beginning of period $ 1,132,392  
Acquisition 263,165  
Foreign Translation Adjustment (4,800)  
Balance, end of period 1,390,757  
Research    
Goodwill [Roll Forward]    
Balance, beginning of period 639,367  
Acquisition 263,165  
Foreign Translation Adjustment (3,304)  
Balance, end of period 899,228  
Learning    
Goodwill [Roll Forward]    
Balance, beginning of period 493,025  
Acquisition 0  
Foreign Translation Adjustment (1,496)  
Balance, end of period $ 491,529  
Held for Sale or Sold    
Goodwill [Roll Forward]    
Cumulative pretax noncash goodwill impairment   $ 318,200