Exit and Disposal Activities (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Mar. 31, 2018	Dec. 31, 2017
Restructuring Cost and Reserve [Line Items]
Exit and disposal costs	$ 4.6	$ 5.0	$ 7.7	$ 8.2
Carlisle Interconnect Technologies
Restructuring Cost and Reserve [Line Items]
Exit and disposal costs	0.8	2.5	1.9	4.8
Carlisle Fluid Technologies
Restructuring Cost and Reserve [Line Items]
Exit and disposal costs	0.5	0.5	0.5	1.0
Carlisle Brake & Friction
Restructuring Cost and Reserve [Line Items]
Exit and disposal costs	3.3	1.7	5.3	2.0
Exit and disposal costs, expected to be incurred	9.0		9.0
Corporate
Restructuring Cost and Reserve [Line Items]
Exit and disposal costs	0.0	$ 0.3	0.0	$ 0.4
Medical Business | Carlisle Interconnect Technologies | Employee Termination Benefits
Restructuring Cost and Reserve [Line Items]
Exit and disposal costs	0.5		1.2
Exit and disposal costs, aggregate expense recognized	15.3		15.3
Exit and disposal costs, expected to be incurred	15.7		15.7
Designated cash						$ 10.1
Restructuring of Global Footprint | Carlisle Fluid Technologies
Restructuring Cost and Reserve [Line Items]
Exit and disposal costs			0.5
Exit and disposal costs, aggregate expense recognized					$ 10.8
Manufacturing Operations | Carlisle Brake & Friction | Employee Retention and Termination Benefits
Restructuring Cost and Reserve [Line Items]
Exit and disposal costs, expected to be incurred	3.0		3.0
Minimum | Manufacturing Operations | Carlisle Brake & Friction
Restructuring Cost and Reserve [Line Items]
Exit and disposal costs, expected to be incurred	17.0		$ 17.0
Restructuring plan period			18 months
Minimum | Manufacturing Operations | Carlisle Brake & Friction | Non-cash Accelerated Depreciation
Restructuring Cost and Reserve [Line Items]
Exit and disposal costs, expected to be incurred	3.5		$ 3.5
Minimum | Manufacturing Operations | Carlisle Brake & Friction | Relocate and Reinstall Equipment
Restructuring Cost and Reserve [Line Items]
Exit and disposal costs, expected to be incurred	4.5		4.5
Minimum | Manufacturing Operations | Carlisle Brake & Friction | Other Miscellaneous Costs
Restructuring Cost and Reserve [Line Items]
Exit and disposal costs, expected to be incurred	6.0		6.0
Maximum | Manufacturing Operations | Carlisle Brake & Friction
Restructuring Cost and Reserve [Line Items]
Exit and disposal costs, expected to be incurred	20.5		$ 20.5
Restructuring plan period			21 months
Maximum | Manufacturing Operations | Carlisle Brake & Friction | Non-cash Accelerated Depreciation
Restructuring Cost and Reserve [Line Items]
Exit and disposal costs, expected to be incurred	4.0		$ 4.0
Maximum | Manufacturing Operations | Carlisle Brake & Friction | Relocate and Reinstall Equipment
Restructuring Cost and Reserve [Line Items]
Exit and disposal costs, expected to be incurred	6.5		6.5
Maximum | Manufacturing Operations | Carlisle Brake & Friction | Other Miscellaneous Costs
Restructuring Cost and Reserve [Line Items]
Exit and disposal costs, expected to be incurred	$ 7.0		$ 7.0