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Warranties
 6 Months Ended
Jul. 31, 2021
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 EndedSix Months Ended
July 31,
2021		July 31,
2020		July 31,
2021		July 31,
2020
Beginning balance$2,655 $1,606 $2,068 $2,019 
Change in provision
659 497 1,363 1,000 
Settlements made
(229)(494)(346)(1,410)
Ending balance$3,085 $1,609 $3,085 $1,609