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Operating Segment and Geographic Information (Tables)
 12 Months Ended
Apr. 30, 2016
Segment Reporting [Abstract]  
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]
Revenue by geography is based on the billing address of the customer. The following table presents the Company’s revenue from continuing operations by geographic region for the periods presented (in thousands):
 
Year Ended April 30,
 
2016
 
2015
 
2014
Revenue by geographic location for continuing operations:
 
 
 
 
 
Americas (1)
$
150,758

 
$
146,086

 
$
127,766

EMEA (2)
42,620

 
38,101

 
33,499

Other
6,388

 
6,994

 
6,880

Total revenues from continuing operations
$
199,766

 
$
191,181

 
$
168,145

(1)
United States, Canada and Brazil
(2)
Europe, the Middle East and Africa