Income Taxes (Tables)

3 Months Ended

Mar. 31, 2023

Income Tax Disclosure [Abstract]

Roll-forward of Unrecognized Tax Benefits and Associated Accrued Interest and Penalties

A roll-forward of unrecognized tax benefits and associated accrued interest and penalties is as follows:

(in millions)	Unrecognized Tax Benefits		Interest and Penalties		Total
Opening balance at January 1, 2023	$	10.2	$	3.2	$	13.4
Net change for tax positions of prior periods		0.1		0.2		0.3
Closing balance at March 31, 2023		10.3		3.4		13.7
Current		—		—		—
Non-current	$	10.3	$	3.4	$	13.7