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Inventories (Tables)
 6 Months Ended
Jul. 31, 2018
Inventory Disclosure [Abstract]  
Components of Inventories

Inventories consisted of the following (in thousands):

 

 

 

July 31,

2018

 

 

January 31,

2018

 

 

July 31,

2017

 

Finished goods

 

$

129,587

 

 

$

112,712

 

 

$

132,659

 

Component parts

 

 

39,880

 

 

 

37,404

 

 

 

41,932

 

Work-in-process

 

 

1,950

 

 

 

1,560

 

 

 

2,376

 

 

 

$

171,417

 

 

$

151,676

 

 

$

176,967