Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Other Intangible Assets

The following table analyzes other intangible assets movements in the year:

(in millions)	2024
Gross cost at January 1	$	315.1
Additions		3.6
Exchange effect		(1.2	)
Gross cost at March 31		317.5
Accumulated amortization at January 1		(257.8	)
Amortization expense		(2.8	)
Exchange effect		0.8
Accumulated amortization at March 31		(259.8	)
Net book amount at March 31	$	57.7