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Inventories (Tables)
 6 Months Ended
Jul. 31, 2016
Inventory Disclosure [Abstract]  
Components of Inventories

Inventories consisted of the following (in thousands):

 

 

July 31,

2016

 

 

January 31,

2016

 

 

July 31,

2015

 

Finished goods

$

134,421

 

 

$

117,627

 

 

$

135,112

 

Component parts

 

47,717

 

 

 

41,041

 

 

 

48,505

 

Work-in-process

 

3,952

 

 

 

3,797

 

 

 

4,898

 

 

$

186,090

 

 

$

162,465

 

 

$

188,515