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Valuation and Qualifying Accounts (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Allowance for doubtful accounts receivable      
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at Beginning of Period $ 5.3 $ 9.3 $ 9.5
Additions Charged to Costs and Expenses 1.3 1.3 0.7
Reductions (0.2) 0.0 0.0
Other Changes Add (Deduct) (0.8) (5.3) (0.9)
Balance at End of Period 5.6 5.3 9.3
Allowance for obsolete inventory      
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at Beginning of Period 67.7 56.7 48.3
Additions Charged to Costs and Expenses 30.1 27.5 21.9
Reductions 2.4    
Additions Through Acquisition   0.0 0.5
Other Changes Add (Deduct) (14.1) (16.5) (14.0)
Balance at End of Period 81.3 67.7 56.7
SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset      
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at Beginning of Period 16.1 14.6 10.4
Additions Charged to Costs and Expenses 2.1 3.3 4.3
Reductions (1.2) (1.8) (0.1)
Balance at End of Period $ 17.0 $ 16.1 $ 14.6