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Supplemental Cash Flow Information Supplemental Cash Flow Detail (Tables)
 12 Months Ended
Jan. 31, 2015
Supplemental Cash Flow Elements [Abstract]  
Schedule of Cash Flow, Supplemental Disclosures
The following provides information concerning supplemental disclosures of cash flow activities:
 
Year ended January 31,
2015
 
2014
 
2013
Cash paid for:
 
 
 
 
 
Interest
$
11,937

 
$
12,225

 
$
11,981

Income taxes
$
11,427

 
$
11,871

 
$
10,777