EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Basic and Diluted earnings per share numerator:
Net (loss) income	$ 150.2	$ 120.4	$ 75.3	$ 363.1
Net income allocated to participating securities	(0.6)	(0.4)	(0.6)	(1.1)
Net income allocated to common stockholders	$ 149.6	$ 120.0	$ 74.7	$ 362.0
Basic earnings per share denominator:
Weighted average shares outstanding (in shares)	106.2	106.8	106.4	107.0
Basic earnings per share (in dollars per share)	$ 1.41	$ 1.12	$ 0.70	$ 3.38
Diluted earnings per share denominator:
Weighted average shares outstanding (in shares)	106.2	106.8	106.4	107.0
Dilutive potential common shares outstanding (in shares)	0.2	0.2	0.2	0.2
Total dilutive weighted average shares (in shares)	106.4	107.0	106.6	107.2
Diluted earnings per share (in dollars per share)	$ 1.41	$ 1.12	$ 0.70	$ 3.38