EARNINGS PER SHARE - Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Numerator:
Net income	$ 313.0	$ 352.0	$ 176.0
Denominator:
Weighted average shares outstanding (in shares)	110,100,000	118,000,000.0	99,700,000
Basic EPS (in dollars per share)	$ 2.84	$ 2.98	$ 1.77
Denominator:
Weighted average shares outstanding, diluted (in shares)	111,600,000	119,600,000	101,100,000
Diluted EPS (in dollars per share)	$ 2.80	$ 2.93	$ 1.75
Restricted Stock Units (RSUs)
Denominator:
Antidilutive securities excluded from computation of EPS (in shares)	0	0	0
Stock Options
Denominator:
Antidilutive securities excluded from computation of earnings value, amount	$ 0.8	$ 0.8	$ 0.7
Antidilutive securities excluded from computation of EPS (in shares)	818,000	760,000	652,000
Restricted Stock Units, Performance Share Units, Employee Stock And Employee Stock Purchase Plan
Denominator:
Weighted average shares outstanding (in shares)	1,500,000	1,600,000	1,400,000
Performance Shares
Denominator:
Weighted average shares outstanding (in shares)	0	0	0