Goodwill (Tables)

12 Months Ended

Dec. 31, 2022

Goodwill.

Schedule of changes in the carrying amount of goodwill

	(in millions)
Balance at January 1, 2021	$	1,935.2
Acquisitions		172.0
Effect of foreign currency translation		0.4
Balance at December 31, 2021		2,107.6
Purchase price allocation adjustments		5.3
Effect of foreign currency translation		(7.0)
Balance at December 31, 2022	$	2,105.9