Exit and Disposal and Other Restructuring Activities (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Restructuring Cost and Reserve [Line Items]
Exit and disposal costs	$ 3.6	$ 5.1	$ 11.6	$ 14.0
Employee severance and benefit arrangements	1.2	3.4	6.3	9.4
Carlisle Interconnect Technologies
Restructuring Cost and Reserve [Line Items]
Exit and disposal costs	3.0	4.5	10.9	11.0
Carlisle Interconnect Technologies | Impact from COVID-19
Restructuring Cost and Reserve [Line Items]
Employee severance and benefit arrangements	0.2	1.0	3.0	3.8
Carlisle Interconnect Technologies | Facility Closing | CALIFORNIA
Restructuring Cost and Reserve [Line Items]
Exit and disposal costs			0.8	2.3
Exit and disposal costs, expected to be incurred	4.6		4.6
Exit and disposal costs, remaining amount	$ 3.8		3.8
Carlisle Interconnect Technologies | Facility Closing | Minimum | CALIFORNIA
Restructuring Cost and Reserve [Line Items]
Exit and disposal costs, expected period to complete	13 months
Carlisle Interconnect Technologies | Facility Closing | Maximum | CALIFORNIA
Restructuring Cost and Reserve [Line Items]
Exit and disposal costs, expected period to complete	17 months
Carlisle Interconnect Technologies | Employee Termination Benefit Costs | WASHINGTON
Restructuring Cost and Reserve [Line Items]
Exit and disposal costs		1.8		6.9
Exit and disposal costs, expected to be incurred	$ 14.6		14.6
Exit and disposal costs, remaining amount	1.1		1.1
Carlisle Interconnect Technologies | Employee Termination Benefit Costs | ALABAMA
Restructuring Cost and Reserve [Line Items]
Exit and disposal costs		0.2		1.6
Carlisle Fluid Technologies
Restructuring Cost and Reserve [Line Items]
Exit and disposal costs	0.5	0.0	0.6	2.1
Carlisle Fluid Technologies | Impact from COVID-19
Restructuring Cost and Reserve [Line Items]
Employee severance and benefit arrangements				2.1
Carlisle Construction Materials
Restructuring Cost and Reserve [Line Items]
Exit and disposal costs	$ 0.1	0.6	$ 0.1	0.9
Carlisle Construction Materials | Impact from COVID-19
Restructuring Cost and Reserve [Line Items]
Employee severance and benefit arrangements		$ 0.6		$ 0.9