Segment Information (Details) $ in Millions	3 Months Ended
	Mar. 31, 2022 USD ($) business	Mar. 31, 2021 USD ($)
Net Sales, EBIT, Assets continuing operations by reportable segment
Number of reportable segments | business	4
Revenues	$ 1,496.3	$ 940.9
Operating Income (Loss)	277.3	84.7
Operating segments
Net Sales, EBIT, Assets continuing operations by reportable segment
Revenues	1,496.3	940.9
Operating Income (Loss)	300.9	114.9
Corporate and unallocated
Net Sales, EBIT, Assets continuing operations by reportable segment
Revenues	0.0	0.0
Operating Income (Loss)	(23.6)	(30.2)
Carlisle Construction Materials | Operating segments
Net Sales, EBIT, Assets continuing operations by reportable segment
Revenues	881.1	556.4
Operating Income (Loss)	261.1	110.7
Carlisle Weatherproofing Technologies | Operating segments
Net Sales, EBIT, Assets continuing operations by reportable segment
Revenues	359.1	162.9
Operating Income (Loss)	37.5	10.6
Carlisle Interconnect Technologies | Operating segments
Net Sales, EBIT, Assets continuing operations by reportable segment
Revenues	185.0	155.8
Operating Income (Loss)	(2.5)	(10.7)
Carlisle Fluid Technologies | Operating segments
Net Sales, EBIT, Assets continuing operations by reportable segment
Revenues	71.1	65.8
Operating Income (Loss)	$ 4.8	$ 4.3