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Goodwill and Other Intangible Assets, net - Net Carrying Value of Other Intangibles (Details) - USD ($)
$ in Millions
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Sep. 30, 2016
Net book value of other intangible assets by the reportable segment        
Other intangible assets, net $ 967.7 $ 1,065.0    
Goodwill 1,441.8 1,452.1 $ 1,020.9  
Carlisle Construction Materials        
Net book value of other intangible assets by the reportable segment        
Other intangible assets, net 285.3 325.1    
Goodwill 532.8 544.3 117.5  
Carlisle Interconnect Technologies        
Net book value of other intangible assets by the reportable segment        
Other intangible assets, net 313.4 344.5    
Goodwill 643.1 640.3 639.1  
Carlisle Fluid Technologies        
Net book value of other intangible assets by the reportable segment        
Other intangible assets, net 280.9 302.5    
Goodwill 169.5 171.0 167.9  
Carlisle Brake & Friction        
Net book value of other intangible assets by the reportable segment        
Other intangible assets, net 86.6 92.9    
Goodwill 96.4 96.5 $ 96.4 $ 96.5
Corporate        
Net book value of other intangible assets by the reportable segment        
Other intangible assets, net $ 1.5 $ 0.0