Exit and Disposal Activities (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Restructuring Cost and Reserve [Line Items]
Exit and disposal costs	$ 8.3	$ 1.5	$ 13.1	$ 8.3
Employee severance and benefit arrangements	6.5	0.4	8.4	6.1
Carlisle Interconnect Technologies
Restructuring Cost and Reserve [Line Items]
Exit and disposal costs	4.6	0.9	6.5	4.8
Employee severance and benefit arrangements	2.8
Carlisle Interconnect Technologies | Employee Termination Benefits
Restructuring Cost and Reserve [Line Items]
Exit and disposal costs	1.4		1.4
Carlisle Interconnect Technologies | Facility Closing
Restructuring Cost and Reserve [Line Items]
Exit and disposal costs	0.4		2.3
Exit and disposal costs, expected to be incurred	10.9		10.9
Carlisle Brake & Friction
Restructuring Cost and Reserve [Line Items]
Exit and disposal costs	1.4	0.5	4.2	1.2
Exit and disposal costs, expected to be incurred	5.8		5.8
Exit and disposal costs, remaining amount	1.6		1.6
Carlisle Fluid Technologies
Restructuring Cost and Reserve [Line Items]
Exit and disposal costs	2.1	0.1	2.1	2.1
Employee severance and benefit arrangements	2.1
Carlisle Construction Materials
Restructuring Cost and Reserve [Line Items]
Exit and disposal costs	0.2	$ 0.0	0.3	$ 0.2
Employee severance and benefit arrangements	$ 0.2		$ 0.3