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Acquisitions - Additional Information (Detail) - USD ($)
3 Months Ended 9 Months Ended
Jul. 02, 2018
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Business Acquisition [Line Items]          
Sales   $ 1,771,647,000 $ 1,651,415,000 $ 5,046,652,000 $ 4,451,420,000
Gross profit   $ 436,542,000 $ 401,270,000 $ 1,225,438,000 $ 1,109,927,000
Senior Unsecured Notes 4.23% Due July 2028 | Senior Notes          
Business Acquisition [Line Items]          
Stated interest rate 4.23% 4.23%   4.23%  
Boat Holdings, LLC          
Business Acquisition [Line Items]          
Percentage of equity interests acquired 100.00%        
Aggregate consideration transferred $ 806,658,000        
Consideration, aggregate deferred annual payment $ 100,000,000        
Deferred annual payment term 12 years        
Sales   $ 119,078,000   $ 486,313,000  
Gross profit   22,335,000   98,976,000  
Weighted average useful life 19 years        
Transaction related costs   $ 1,431,000   $ 3,905,000  
Boat Holdings, LLC | Customer relationships | Minimum          
Business Acquisition [Line Items]          
Weighted average useful life 15 years        
Boat Holdings, LLC | Customer relationships | Maximum          
Business Acquisition [Line Items]          
Weighted average useful life 20 years