Segment Information- Other Financial Information by Reportable Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Net Sales, EBIT, Assets continuing operations by reportable segment
Depreciation and Amortization	$ 48.9	$ 43.1	$ 96.7	$ 82.0
Capital Expenditures	28.8	21.0	57.8	45.0
Operating Segments
Net Sales, EBIT, Assets continuing operations by reportable segment
Depreciation and Amortization	48.0	42.2	94.9	80.2
Capital Expenditures	28.8	21.0	57.8	45.0
Corporate and unallocated
Net Sales, EBIT, Assets continuing operations by reportable segment
Depreciation and Amortization	0.9	0.9	1.8	1.8
Capital Expenditures	0.0	0.0	0.0	0.0
Carlisle Construction Materials | Operating Segments
Net Sales, EBIT, Assets continuing operations by reportable segment
Depreciation and Amortization	22.2	20.4	43.8	36.5
Capital Expenditures	18.9	12.6	37.3	29.5
Carlisle Weatherproofing Technologies | Operating Segments
Net Sales, EBIT, Assets continuing operations by reportable segment
Depreciation and Amortization	25.8	21.8	51.1	43.7
Capital Expenditures	$ 9.9	$ 8.4	$ 20.5	$ 15.5