Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2023

Fair Value Disclosures [Abstract]

Carrying Amount and Fair Values of the Company's Assets and Liabilities Measured on a Recurring Basis

The following table presents the carrying amount and fair values of the Company’s financial assets and liabilities measured on a recurring basis:

	March 31, 2023				December 31, 2022
(in millions)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Assets
Non-derivatives:
Cash and cash equivalents	$	147.5	$	147.5	$	147.1	$	147.1
Derivatives (Level 1 measurement):
Other current and non-current assets:
Emissions Trading Scheme credits		2.5		2.5		2.7		2.7
Liabilities
Derivatives (Level 1 measurement):
Other current and non-current liabilities:
Foreign currency forward exchange contracts	$	0.8	$	0.8	$	0.5	$	0.5
Non-financial liabilities (Level 3 measurement):
Other current and non-current liabilities:
Stock equivalent units		16.6		16.6		26.4		26.4