Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2025

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Changes in the Carrying Amount of Goodwill

The changes in the carrying amount of goodwill by reportable segment follows:

(in millions)	CCM		CWT		Total
Balance as of December 31, 2023	$	934.7	$	267.8	$	1,202.5
Goodwill acquired during year (1)	141.0		145.0		286.0
Currency translation and other	(2.6)		(7.9)		(10.5)
Balance as of December 31, 2024	$	1,073.1	$	404.9	$	1,478.0
Goodwill acquired during year (1)	—		69.6		69.6
Currency translation and other	5.8		(14.5)		(8.7)
Balance as of December 31, 2025	$	1,078.9	$	460.0	$	1,538.9

(1)Refer to Note 3 for further information on goodwill resulting from recent acquisitions.

Summary of Other Intangible Assets

Other Intangible Assets

A summary of the Company's other intangible assets follows:

	December 31, 2025						December 31, 2024
(in millions)	Acquired Cost		Accumulated Amortization		Net Book Value		Acquired Cost		Accumulated Amortization		Net Book Value
Customer relationships	$	1,479.6	$	(483.6)	$	996.0	$	1,456.0	$	(380.5)	$	1,075.5
Indefinite-lived trade names	254.4		—		254.4		252.0		—		252.0
Technology	203.3		(116.6)		86.7		185.6		(103.4)		82.2
Definite-lived trade names	117.6		(43.1)		74.5		117.0		(37.0)		80.0
Other	44.3		(30.4)		13.9		37.8		(22.6)		15.2
Other intangible assets	$	2,099.2	$	(673.7)	$	1,425.5	$	2,048.4	$	(543.5)	$	1,504.9

Summary of Intangible Assets Subject to Amortization

The remaining weighted-average amortization period of intangible assets subject to amortization as of December 31, 2025, follows (in years):

Customer relationships	12.3
Technology	7.3
Definite-lived trade names	14.6
Other	1.4
Total assets subject to amortization	11.9

Summary of Estimated Future Amortization Expense

Intangible assets subject to amortization as of December 31, 2025, will be amortized as follows:

(in millions)	2026		2027		2028		2029		2030		Thereafter
Estimated future amortization expense	$	123.5	$	109.6	$	105.9	$	99.1	$	90.7	$	642.3

Summary of the Net Book Values of Other Intangible Assets, Net by Reportable Segment

The net carrying values of the Company’s other intangible assets by reportable segment follows:

(in millions)	December 31, 2025		December 31, 2024
Carlisle Construction Materials	$	314.9	$	343.0
Carlisle Weatherproofing Technologies	1,110.2		1,159.7
Corporate	0.4		2.2
Total	$	1,425.5	$	1,504.9