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Warranties
 9 Months Ended
Oct. 31, 2017
Product Warranties Disclosures [Abstract]  
Warranties WARRANTIES

Accruals necessary for product warranties are estimated based on historical warranty costs and average time elapsed between purchases and returns for each division. Additional accruals are made for any significant, discrete warranty issues. Changes in the warranty accrual were as follows:
 
Three Months Ended
 
Nine Months Ended
 
October 31,
2017
 
October 31,
2016
 
October 31,
2017
 
October 31,
2016
Beginning balance
$
2,265

 
$
2,076

 
$
1,547

 
$
1,835

Change in provision
(274
)
 
202

 
1,504

 
1,288

Settlements made
(774
)
 
(426
)
 
(1,834
)
 
(1,271
)
Ending balance
$
1,217

 
$
1,852

 
$
1,217

 
$
1,852