Exit and Disposal Activities - Exit and Disposal Activity Liability (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Restructuring Reserve [Roll Forward]
Balance, beginning			$ 9.0
Charges	$ 5.0	$ 2.7	8.2	$ 4.1
Cash payments			(4.7)
Other adjustments and non-cash settlements			(0.2)
Balance, ending	12.3		12.3
Carlisle Interconnect Technologies
Restructuring Reserve [Roll Forward]
Balance, beginning			7.6
Charges	2.5	0.0	4.8	0.0
Cash payments			(1.5)
Other adjustments and non-cash settlements			0.7
Balance, ending	11.6		11.6
Carlisle Fluid Technologies
Restructuring Reserve [Roll Forward]
Balance, beginning			0.7
Charges	0.5	1.9	1.0	3.0
Cash payments			(1.4)
Other adjustments and non-cash settlements			(0.2)
Balance, ending	0.1		0.1
Carlisle Brake & Friction
Restructuring Reserve [Roll Forward]
Balance, beginning			0.0
Charges	1.7	0.0	2.0	0.0
Cash payments			(1.0)
Other adjustments and non-cash settlements			(0.7)
Balance, ending	0.3		0.3
Corporate
Restructuring Reserve [Roll Forward]
Balance, beginning			0.7
Charges	0.3	$ 0.8	0.4	$ 1.1
Cash payments			(0.8)
Other adjustments and non-cash settlements			0.0
Balance, ending	$ 0.3		$ 0.3