SHARE-BASED AWARDS (Tables)

12 Months Ended

Dec. 31, 2023

SHARE-BASED AWARDS

Summary of Compensation Expense and Other Information Related to Share-Based awards

	Years Ended December 31,
Share-based compensation expense, net of estimated forfeitures (in millions)	2023		2022		2021
Share-based compensation expense	$	23.8	$	18.3	$	19.3
Tax benefit realized upon stock vesting	$	6.1	$	10.6	$	8.0
Fair value of stock vested	$	27.8	$	44.0	$	33.5

Non-Vested Restricted Stock Unit Activity

The following table summarizes non-vested restricted stock unit activity through December 31, 2023 (in thousands, except weighted average grant-date fair value amounts):

	2016 Plan	Weighted
	Restricted	Average Grant-
	Stock Units	Date Fair Value
Outstanding at December 31, 2022	546	$	68.38
Granted	269		66.05
Vested	(439)		46.96
Canceled	(10)		70.07
Added by performance factor (1)	167		39.61
Outstanding at December 31, 2023	533	$	75.82

(1) Represents shares paid out above target.