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Acquisitions - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended
Jan. 29, 2021
Aug. 03, 2020
Jan. 17, 2020
Mar. 27, 2021
Hart & Cooley Flexible Duct Business [Member]        
Business Acquisition [Line Items]        
Consideration transferred net of working capital adjustments $ 14.0      
Fair value of assets acquired 12.9      
Fair value of property, plant and equipment acquired 8.4      
Fair value of inventories acquired 4.5      
Tax-deductible goodwill $ 1.1      
Wieland-Kessler LLC [Member]        
Business Acquisition [Line Items]        
Consideration transferred net of working capital adjustments   $ 57.2    
Fair value of assets acquired   28.7    
Tax-deductible goodwill   $ 28.5    
Increase in intangible assets       $ 1.5
Decrease in goodwill       $ 1.5
Shoals Tubular, Inc. [Member]        
Business Acquisition [Line Items]        
Consideration transferred net of working capital adjustments     $ 15.3  
Fair value of assets acquired     6.2  
Fair value of property, plant and equipment acquired     3.7  
Fair value of inventories acquired     1.8  
Tax-deductible goodwill     9.3  
Cash portion of acquisition price     15.3  
Fair value of accounts receivable acquired     0.7  
Fair value of liabilities acquired     $ 0.2