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Summary of Significant Accounting Policies (Tables)
 12 Months Ended
May 31, 2018
Accounting Policies [Abstract]  
Supplemental Cash Flow Information

Supplemental cash flow information was as follows for the fiscal years ended May 31:

 

(in thousands)

 

2018

 

 

2017

 

 

2016

 

Interest paid, net of amount capitalized

 

$

34,839

 

 

$

29,826

 

 

$

30,431

 

Income taxes paid, net of refunds

 

$

44,819

 

 

$

55,652

 

 

$

50,750