Goodwill and Other Intangible Assets, net - Net Carrying Value of Other Intangibles (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Net book value of other intangible assets by the reportable segment
Other intangible assets, net	$ 1,140.6	$ 967.7
Goodwill	1,716.3	1,441.8	$ 1,452.1
Carlisle Construction Materials
Net book value of other intangible assets by the reportable segment
Other intangible assets, net	345.3	285.3
Goodwill	597.1	532.8	544.3
Carlisle Interconnect Technologies
Net book value of other intangible assets by the reportable segment
Other intangible assets, net	441.0	313.4
Goodwill	835.2	643.1	640.3
Carlisle Fluid Technologies
Net book value of other intangible assets by the reportable segment
Other intangible assets, net	272.8	280.9
Goodwill	187.5	169.5	171.0
Carlisle Brake & Friction
Net book value of other intangible assets by the reportable segment
Other intangible assets, net	80.2	86.6
Goodwill	96.5	96.4	$ 96.5
Corporate
Net book value of other intangible assets by the reportable segment
Other intangible assets, net	$ 1.3	$ 1.5