Exit and Disposal Activities - Exit and Disposal Activity Liability (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Restructuring Reserve [Roll Forward]
Balance, beginning			$ 9.0
Charges	$ 11.6	$ 1.4	19.8	$ 5.5
Cash payments			(9.3)
Other adjustments and non-cash settlements			(1.4)
Balance, ending	18.1		18.1
Carlisle Interconnect Technologies
Restructuring Reserve [Roll Forward]
Balance, beginning			7.6
Charges	2.7	0.0	7.5	0.0
Cash payments			(5.4)
Other adjustments and non-cash settlements			0.0
Balance, ending	9.7		9.7
Carlisle Fluid Technologies
Restructuring Reserve [Roll Forward]
Balance, beginning			0.7
Charges	7.5	0.6	8.5	3.6
Cash payments			(1.5)
Other adjustments and non-cash settlements			(0.1)
Balance, ending	7.6		7.6
Carlisle Brake & Friction
Restructuring Reserve [Roll Forward]
Balance, beginning			0.0
Charges	1.0	0.0	3.0	0.0
Cash payments			(1.0)
Other adjustments and non-cash settlements			(1.3)
Balance, ending	0.7		0.7
Corporate
Restructuring Reserve [Roll Forward]
Balance, beginning			0.7
Charges	0.4	$ 0.8	0.8	$ 1.9
Cash payments			(1.4)
Other adjustments and non-cash settlements			0.0
Balance, ending	$ 0.1		$ 0.1