Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of indefinite-lived intangible assets

At December 31, 2024	Cost		Accumulated amortization		Net book value
Trade names and trademarks	$	220.5	$	(63.2)	$	157.3
Customer relationships	2,538.1		(393.7)		2,144.4
Software and technology assets	781.1		(416.9)		364.2
Software under development	2.8		—		2.8
	$	3,542.5	$	(873.8)	$	2,668.7

At December 31, 2023	Cost		Accumulated amortization		Net book value
Trade names and trademarks	$	221.9	$	(29.7)	$	192.2
Customer relationships	2,553.1		(225.0)		2,328.1
Software and technology assets	670.4		(285.5)		384.9
Software under development	8.9		—		8.9
	$	3,454.3	$	(540.2)	$	2,914.1

Schedule of finite-lived intangible assets

Amortization is recognized in earnings on a straight-line basis over the estimated useful lives of intangible assets from the date that they are available for use. The amortization periods of finite-lived intangible assets are re-evaluated periodically when facts and circumstances indicate that the remaining useful lives may have changed. Indefinite-lived trade names and trademarks are not amortized. The estimated useful lives of the Company's intangible assets are as follows:

Asset	Rate / term
Trade names and trademarks	2 - 15 years or indefinite-lived
Customer relationships	6 - 20 years
Software and technology assets	3 - 7 years

At December 31, 2024	Cost		Accumulated amortization		Net book value
Trade names and trademarks	$	220.5	$	(63.2)	$	157.3
Customer relationships	2,538.1		(393.7)		2,144.4
Software and technology assets	781.1		(416.9)		364.2
Software under development	2.8		—		2.8
	$	3,542.5	$	(873.8)	$	2,668.7

At December 31, 2023	Cost		Accumulated amortization		Net book value
Trade names and trademarks	$	221.9	$	(29.7)	$	192.2
Customer relationships	2,553.1		(225.0)		2,328.1
Software and technology assets	670.4		(285.5)		384.9
Software under development	8.9		—		8.9
	$	3,454.3	$	(540.2)	$	2,914.1

Schedule of annual amortization expense

At December 31, 2024, estimated annual amortization expense for the next five years ended December 31 are as follows:

2025	$	340.2
2026	319.3
2027	244.9
2028	192.9
2029	178.7
	$	1,276.0