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Goodwill and Other Intangible Assets, net
 12 Months Ended
Dec. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Other Intangible Assets, net Goodwill and Other Intangible Assets, net 
Goodwill
The changes in the carrying amount of goodwill, net by reportable segment follows:
(in millions)CCMCWTTotal
Balance as of December 31, 2022$932.8 $244.8 $1,177.6 
Goodwill acquired during year (1)
— 20.6 20.6 
Currency translation and other1.9 2.4 4.3 
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 
(1)Refer to Note 3 for further information on goodwill resulting from recent acquisitions.
Other Intangible Assets, net
December 31, 2024December 31, 2023
(in millions)Acquired CostAccumulated AmortizationNet Book ValueAcquired CostAccumulated AmortizationNet Book Value
Assets subject to amortization:   
Customer relationships$1,456.0 $(380.5)$1,075.5 $1,209.8 $(298.9)$910.9 
Technology and intellectual property
185.6 (103.4)82.2 146.7 (97.6)49.1 
Trade names and other154.8 (59.6)95.2 88.2 (49.5)38.7 
Assets not subject to amortization:      
Trade names252.0 — 252.0 254.2 — 254.2 
Other intangible assets, net$2,048.4 $(543.5)$1,504.9 $1,698.9 $(446.0)$1,252.9 
The remaining weighted-average amortization period of intangible assets subject to amortization as of December 31, 2024, follows (in years):
Customer relationships13.1
Technology and intellectual property8.7
Trade names and other13.1
Total assets subject to amortization12.8
Intangible assets subject to amortization as of December 31, 2024, will be amortized as follows:
(in millions)20252026202720282029Thereafter
Estimated future amortization expense
$119.4 $117.4 $104.1 $102.9 $96.1 $713.0 
The net carrying values of the Company’s other intangible assets, net by reportable segment follows:
(in millions)December 31,
2024		December 31,
2023
Carlisle Construction Materials$343.0 $121.1 
Carlisle Weatherproofing Technologies 1,159.7 1,127.6 
Corporate2.2 4.2 
Total$1,504.9 $1,252.9