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PROPERTY AND EQUIPMENT
12 Months Ended
May 31, 2016
Property, Plant and Equipment [Abstract]  
PROPERTY AND EQUIPMENT
PROPERTY AND EQUIPMENT
 
As of May 31, 2016 and 2015, property and equipment consisted of the following:
 
Range of Useful Lives (Years)
 
2016
  
2015
 
 
 
(in thousands)
Land
N/A
 
$
6,221

 
$
1,571

Buildings
25-38
 
62,901

 
26,236

Equipment
2-10
 
209,201

 
197,186

Software
2-10
 
290,997

 
248,137

Leasehold improvements
3-15
 
40,452

 
20,458

Furniture and fixtures
3-7
 
17,489

 
3,705

 
 
 
627,261

 
497,293

Less accumulated depreciation and amortization
 
 
(200,669
)
 
(179,932
)
Work in progress
 
 
67,086

 
56,782

 
 
 
$
493,678

 
$
374,143