Stock-Based Compensation

9 Months Ended

Sep. 30, 2022

Share-Based Payment Arrangement [Abstract]

Stock-Based Compensation

Stock-Based Compensation

The following table summarizes stock-based compensation by type of award:

	Three months ended September 30,				Nine months ended September 30,
	2022		2021		2022		2021
	(In millions)
Stock Appreciation Rights	$	(2.1)	$	(3.5)	$	(6.4)	$	(3.8)
Restricted stock and restricted stock units, service based	1.4		1.5		4.1		4.5
Restricted stock and restricted stock units, performance based	1.0		2.5		4.6		9.4
Employee stock purchase plan	0.2		—		0.2		0.5
Total stock-based compensation expense	$	0.5	$	0.5	$	2.5	$	10.6