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Goodwill and Identifiable Intangible Assets - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2022
Dec. 31, 2021
Goodwill and Identifiable Intangible Assets [Line Items]    
Goodwill [1] $ 2,487.5 $ 2,465.1
Net identifiable intangible assets 1,382.5 $ 1,383.8
Decrease in gross identifiable intangible assets $ 15.8  
Tradenames and Customer Relationship [Member] | Minimum [Member]    
Goodwill and Identifiable Intangible Assets [Line Items]    
Amortizable identifiable intangible assets, estimated useful life 5 years  
Tradenames and Customer Relationship [Member] | Maximum [Member]    
Goodwill and Identifiable Intangible Assets [Line Items]    
Amortizable identifiable intangible assets, estimated useful life 30 years  
[1] Net of accumulated impairment losses of $399.5 million in the Outdoors & Security segment.