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Supplemental Cash Flow Information Supplemental Cash Flow Detail (Tables)
 12 Months Ended
Jan. 31, 2017
Supplemental Cash Flow Elements [Abstract]  
Schedule of Cash Flow, Supplemental Disclosures
The following provides information concerning supplemental disclosures of cash flow activities:
Fiscal year ended January 31,
2017
 
2016
 
2015
Cash paid for:
 
 
 
 
 
Interest
$
13,458

 
$
12,094

 
$
11,937

Income taxes
$
17,358

 
$
15,103

 
$
11,427