Intangible Assets (Schedule of Intangible Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Accumulated amortization	$ (541,300)	$ (271,400)
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Cost	3,455,400	594,100
Accumulated amortization	(541,300)	(271,400)
Net book value	2,914,100	322,700
Software under development
Indefinite-lived Intangible Assets [Line Items]
Software under development	8,900	4,500
Trade names and trademarks
Finite-Lived Intangible Assets [Line Items]
Cost	221,900	54,000
Accumulated amortization	(29,700)	(2,900)
Net book value	192,200	51,100
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Accumulated amortization	(29,700)	(2,900)
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Cost	2,553,100	245,400
Accumulated amortization	(225,000)	(85,600)
Net book value	2,328,100	159,800
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Accumulated amortization	(225,000)	(85,600)
Software and technology assets
Finite-Lived Intangible Assets [Line Items]
Cost	670,400	289,100
Accumulated amortization	(285,500)	(182,300)
Net book value	384,900	106,800
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Accumulated amortization	(285,500)	(182,300)
Backlog
Finite-Lived Intangible Assets [Line Items]
Cost	1,100	1,100
Accumulated amortization	(1,100)	(600)
Net book value	0	500
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Accumulated amortization	$ (1,100)	$ (600)