Goodwill and Intangible Assets (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 28.8	$ 26.3
Technology & Shopping
Finite-Lived Intangible Assets [Line Items]
Goodwill accumulated impairment loss	$ 169.5		$ 169.5