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Business Combinations - Additional Information (Detail) - USD ($)
$ in Millions
9 Months Ended 12 Months Ended
Mar. 31, 2016
Sep. 30, 2017
Dec. 31, 2016
Business Acquisition [Line Items]      
Goodwill   $ 1,904.9 $ 1,870.7
Nissin Kogyo      
Business Acquisition [Line Items]      
Percentage of ownership interest retained by non-controlling owners 49.00%    
Autoliv Nissin Brake Systems      
Business Acquisition [Line Items]      
Percentage of ownership interest acquired by the company 51.00%    
Consideration transferred in cash $ 262.5    
Acquisition related costs   $ 0.1 $ 2.0
Business combination, intangible assets 112.1    
Goodwill 234.7    
Autoliv Nissin Brake Systems | Customer Contract      
Business Acquisition [Line Items]      
Business combination, intangible assets $ 50.7    
Intangible assets, amortization method   Straight-line  
Intangible assets useful life 7 years    
Autoliv Nissin Brake Systems | Technology      
Business Acquisition [Line Items]      
Business combination, intangible assets $ 61.4    
Intangible assets, amortization method   Straight-line  
Intangible assets useful life 10 years