Discontinued Operations - Results from Discontinued Operations (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Provision for income taxes									$ (0.9)	$ 47.6	$ 14.7
(Loss) income from discontinued operations	$ (1.4)	$ (1.4)	$ (0.1)	$ 2.0	$ (1.0)	$ 2.8	$ (1.0)	$ 251.7	(0.9)	252.5	24.9
Carlisle Food Service Products
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue									0.0	69.5	337.9
Cost of goods sold									0.0	49.5	238.5
Other operating expense, net									0.0	16.7	59.7
Operating income									0.0	3.3	39.7
Other non-operating expense, net									1.8	0.0	0.1
Income from discontinued operations before income taxes									(1.8)	3.3	39.6
Gain on sale of discontinued operations									0.0	296.8	0.0
Provision for income taxes									(0.9)	47.6	14.7
(Loss) income from discontinued operations									$ (0.9)	$ 252.5	$ 24.9