DERIVATIVES AND HEDGING (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Other Commitments [Line Items]
Estimated amount to be reclassified as an increase to interest expense	$ 2.2
Estimated amount to be reclassified as an increase to interest income	1.6
Derivative liability, fair value, net	31.4	$ 50.5
Cash collateral	35.5	57.5
Termination value	$ 31.4	$ 50.5