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Intangible Assets, Net
3 Months Ended
Mar. 31, 2025
Intangible Assets, Net  
Intangible Assets, Net

Note 6. Intangible Assets, Net

Intangible assets, net consisted of the following:

March 31, 2025

December 31, 2024

Weighted Average

Gross

Gross

Amortizable

Carrying

Accumulated

Carrying

Accumulated

Life in Years

   

Amount

   

Amortization

   

Amount

   

Amortization

(in millions)

Intangible assets subject to amortization:

Customer lists/relationships

13.9

$

753.6

$

(569.4)

$

753.4

$

(559.6)

Backlog of orders

7.9

20.9

(8.8)

21.0

(8.2)

Other

9.3

10.1

(9.6)

10.2

(9.6)

784.6

(587.8)

784.6

(577.4)

Intangible assets not subject to amortization:

Trade names

800.2

800.0

$

1,584.8

$

(587.8)

$

1,584.6

$

(577.4)

Changes in the carrying amount of intangible assets, net are as follows:

   

   

(in millions)

Balance as of January 1, 2025

$

1,007.2

Amortization expense

(10.4)

Effect of foreign currency translation

0.2

Balance as of March 31, 2025

$

997.0

The following is a summary of estimated future amortization expense:

   

(in millions)

2025 (remaining nine months)

$

28.7

2026

29.5

2027

28.9

2028

27.4

2029

25.3

Thereafter

57.0

$

196.8