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Acquisition - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Feb. 01, 2020
Jul. 31, 2020
Jul. 31, 2020
Business Acquisition [Line Items]      
Gain on acquisition of business     $ 11.9
Spartan Emergency Response [Member]      
Business Acquisition [Line Items]      
Business acquisition, purchase price $ 54.8    
Gain on acquisition of business 11.9    
Net sales   $ 74.5 137.1
Operating income   $ 4.5 $ 5.6
Spartan Emergency Response [Member] | Selling, General and Administrative Expenses [Member]      
Business Acquisition [Line Items]      
Acquisition related costs $ 1.6