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Segment Information (Tables)
3 Months Ended
Jul. 31, 2017
Segment Information [Abstract]  
Segment Information
Segment information is as follows (in thousands):
 
 
For the Three Months
 
Ended July 31,
 
2017
 
2016
Revenue:
   
Research
$223,627
 
$207,223
Publishing
131,278
 
144,962
Solutions
56,539
 
52,100
Total Revenue
$411,444
 
$404,285
    
Contribution to Profit (Loss):
   
Research
$61,461
 
$60,435
Publishing
5,009
 
19,320
Solutions
(1,968)
 
146
Total Contribution to Profit
$64,502
 
$79,901
Corporate Expenses
(50,002)
 
(36,087)
Operating Income
$14,500
 
$43,814