Goodwill and Other Intangible Assets, net

12 Months Ended

Dec. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets, net

Goodwill

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


(in millions)	CCM		CIT		CFT		Total
Net balance as of December 31, 2018	$	532.8	$	643.1	$	169.5	$	1,345.4
Goodwill acquired during year(1), (2)	64.3		194.1		16.1		274.5

Measurement period adjustments	0.5		(1.9)		1.6		0.2
Currency translation and other	(0.5)		(0.1)		0.3		(0.3)
Net balance as of December 31, 2019	$	597.1	$	835.2	$	187.5	$	1,619.8
Goodwill acquired during year(1), (2)	12.5		2.8		2.8		18.1

Measurement period adjustments	—		(2.3)		—		(2.3)
Currency translation and other	3.4		(0.1)		2.8		6.1
Net balance as of December 31, 2020	$	613.0	$	835.6	$	193.1	$	1,641.7

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

(2)In addition to the acquisitions disclosed in Note 3, the Company acquired one business for an aggregate purchase price of $3.2 million during 2020 and five businesses for an aggregate purchase price of $42.4 million during 2019.

Other Intangible Assets, net


	December 31, 2020						December 31, 2019
(in millions)	Acquired Cost		Accumulated Amortization		Net Book Value		Acquired Cost		Accumulated Amortization		Net Book Value
Assets subject to amortization:
Customer relationships	$	1,000.7	$	(393.7)	$	607.0	$	994.5	$	(315.6)	$	678.9
Technology and intellectual property	263.0		(172.6)		90.4		253.6		(133.8)		119.8
Trade names and other	115.6		(48.7)		66.9		97.9		(36.9)		61.0
Assets not subject to amortization:
Trade names	196.6		—		196.6		200.7		—		200.7
Other intangible assets, net	$	1,575.9	$	(615.0)	$	960.9	$	1,546.7	$	(486.3)	$	1,060.4

The remaining weighted-average amortization period of intangible assets subject to amortization as of December 31, 2020, follows (in years):


Customer relationships						9.2
Technology and intellectual property						5.9
Trade names and other						9.8
Total assets subject to amortization						8.9

Intangible assets subject to amortization as of December 31, 2020, will be amortized as follows:


(in millions)	2021		2022		2023		2024		2025		Thereafter
Estimated future amortization expense	$	112.6	$	96.8	$	91.1	$	82.0	$	79.5	$	302.3

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


(in millions)	December 31, 2020		December 31, 2019
Carlisle Construction Materials	$	300.9	$	345.3
Carlisle Interconnect Technologies	384.8		441.0
Carlisle Fluid Technologies	261.3		272.8
Corporate	13.9		1.3
Total	$	960.9	$	1,060.4