EARNINGS (LOSS) PER SHARE - Earnings Per Share Reconciliation (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Basic earnings (loss) per share computation:
Net income (loss)	$ 20.3	$ 8.5	$ 9.7	$ 31.7	$ 28.8	$ 41.4
Weighted-average number of shares outstanding - basic (in shares)	376,594,660		352,199,184		376,285,196	350,908,612
Basic earnings per share (USD per share)	$ 0.05		$ 0.03		$ 0.08	$ 0.12
Diluted earnings (loss) per share computation:
Net income (loss)	$ 20.3	$ 8.5	$ 9.7	$ 31.7	$ 28.8	$ 41.4
Dilutive Securities, Effect On Basic Earnings Per Share, Dilutive Warrant Liabilities	0.0		0.0		(133.8)	0.0
Net income (loss) adjusted for the gain on fair value of warrant liabilities	$ 20.3		$ 9.7		$ (105.0)	$ 41.4
Weighted-average number of shares outstanding - basic (in shares)	376,594,660		352,199,184		376,285,196	350,908,612
Dilutive effect of private warrants (in shares)	0		0		2,208,018	0
Dilutive effect of equity-based compensation (in shares)	663,194		4,453,627		0	3,975,257
Weighted-average number of shares outstanding - diluted (in shares)	377,257,854		356,652,811		378,493,214	354,883,869
Diluted earnings (loss) per share (USD per share)	$ 0.05		$ 0.03		$ (0.28)	$ 0.12