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Inventories
9 Months Ended
Oct. 31, 2013
Inventory Disclosure [Abstract]  
Inventories
INVENTORIES
(in thousands)
October 31,
2013
 
January 31,
2013
 
October 31,
2012
Finished goods
$
1,440,114

 
$
1,291,235

 
$
1,377,518

Raw materials
860,507

 
790,732

 
745,334

Work-in-process
118,089

 
152,367

 
166,719

Inventories, net
$
2,418,710

 
$
2,234,334

 
$
2,289,571