Segment Information - Net Sales and Long-lived Assets (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
Segment Information
Revenues	$ 1,144.3	$ 1,280.6	$ 1,314.8	$ 1,071.9	$ 1,077.3	$ 1,181.4	$ 1,236.1	$ 984.7	$ 4,811.6	$ 4,479.5	$ 3,750.8
Long-lived assets	793.2				776.1				793.2	776.1
United States
Segment Information
Revenues									3,847.1	3,461.3	2,860.4
Long-lived assets	571.8				574.8				571.8	574.8
International [Member]
Segment Information
Revenues									964.5	1,018.2	890.4
Europe
Segment Information
Revenues									428.3	443.5	402.5
Long-lived assets	117.1				99.3				117.1	99.3
Asia
Segment Information
Revenues									288.3	306.5	267.0
Long-lived assets	44.7				42.7				44.7	42.7
Canada
Segment Information
Revenues									104.7	112.1	83.3
Mexico
Segment Information
Revenues									70.0	72.0	71.1
Long-lived assets	31.3				30.8				31.3	30.8
United Kingdom
Segment Information
Long-lived assets	28.1				28.0				28.1	28.0
Middle East and Africa
Segment Information
Revenues									39.4	46.8	40.8
Other
Segment Information
Revenues									33.8	37.3	25.7
Long-lived assets	$ 0.2				$ 0.5				0.2	0.5
Carlisle Construction Materials
Segment Information
Revenues									3,233.3	2,880.3	2,336.2
Carlisle Construction Materials | United States
Segment Information
Revenues									2,895.5	2,552.6	2,080.5
Carlisle Construction Materials | International [Member]
Segment Information
Revenues									337.8	327.7	255.7
Carlisle Construction Materials | Europe
Segment Information
Revenues									204.2	186.2	156.5
Carlisle Construction Materials | Asia
Segment Information
Revenues									19.7	16.4	13.2
Carlisle Construction Materials | Canada
Segment Information
Revenues									89.7	97.9	67.7
Carlisle Construction Materials | Mexico
Segment Information
Revenues									3.0	4.1	2.1
Carlisle Construction Materials | Middle East and Africa
Segment Information
Revenues									13.1	15.2	12.0
Carlisle Construction Materials | Other
Segment Information
Revenues									8.1	7.9	4.2
Carlisle Interconnect Technologies
Segment Information
Revenues									972.9	933.8	815.3
Carlisle Interconnect Technologies | United States
Segment Information
Revenues									699.5	634.0	537.8
Carlisle Interconnect Technologies | International [Member]
Segment Information
Revenues									273.4	299.8	277.5
Carlisle Interconnect Technologies | Europe
Segment Information
Revenues									71.7	89.7	96.3
Carlisle Interconnect Technologies | Asia
Segment Information
Revenues									107.9	114.0	98.1
Carlisle Interconnect Technologies | Canada
Segment Information
Revenues									5.5	4.8	5.1
Carlisle Interconnect Technologies | Mexico
Segment Information
Revenues									53.0	48.2	46.6
Carlisle Interconnect Technologies | Middle East and Africa
Segment Information
Revenues									23.0	27.7	24.4
Carlisle Interconnect Technologies | Other
Segment Information
Revenues									12.3	15.4	7.0
Carlisle Fluid Technologies
Segment Information
Revenues									278.4	291.6	281.4
Carlisle Fluid Technologies | United States
Segment Information
Revenues									124.1	116.9	110.1
Carlisle Fluid Technologies | International [Member]
Segment Information
Revenues									154.3	174.7	171.3
Carlisle Fluid Technologies | Europe
Segment Information
Revenues									54.8	58.6	55.5
Carlisle Fluid Technologies | Asia
Segment Information
Revenues									87.9	100.1	93.0
Carlisle Fluid Technologies | Canada
Segment Information
Revenues									6.2	6.5	6.9
Carlisle Fluid Technologies | Mexico
Segment Information
Revenues									2.7	5.4	9.5
Carlisle Fluid Technologies | Middle East and Africa
Segment Information
Revenues									1.9	2.5	2.0
Carlisle Fluid Technologies | Other
Segment Information
Revenues									0.8	1.6	4.4
Carlisle Brake & Friction
Segment Information
Revenues									327.0	373.8	317.9
Carlisle Brake & Friction | United States
Segment Information
Revenues									128.0	157.8	132.0
Carlisle Brake & Friction | International [Member]
Segment Information
Revenues									199.0	216.0	185.9
Carlisle Brake & Friction | Europe
Segment Information
Revenues									97.6	109.0	94.2
Carlisle Brake & Friction | Asia
Segment Information
Revenues									72.8	76.0	62.7
Carlisle Brake & Friction | Canada
Segment Information
Revenues									3.3	2.9	3.6
Carlisle Brake & Friction | Mexico
Segment Information
Revenues									11.3	14.3	12.9
Carlisle Brake & Friction | Middle East and Africa
Segment Information
Revenues									1.4	1.4	2.4
Carlisle Brake & Friction | Other
Segment Information
Revenues									$ 12.6	$ 12.4	$ 10.1