Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Other Intangible Assets

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

(in millions)	2023
Gross cost at January 1	$	291.1
Additions		4.3
Exchange effect		0.9
Gross cost at March 31		296.3
Accumulated amortization at January 1		(246.1	)
Amortization expense		(2.7	)
Exchange effect		(0.6	)
Accumulated amortization at March 31		(249.4	)
Net book amount at March 31	$	46.9