INCOME TAXES - Operating Loss Carryforwards (Details) $ in Millions	Dec. 31, 2022 USD ($)
Operating Loss Carryforwards [Line Items]
Operating loss and tax credit carryforwards, subject to expiration	$ 880.0
Operating loss and tax credit carryforwards, not subject to expiration	683.9
Operating loss and tax credit carryforwards	1,563.9
Research and development credits
Operating Loss Carryforwards [Line Items]
Carryforward with Expiration	0.9
Carryforward Indefinitely	0.0
Total	0.9
Federal
Operating Loss Carryforwards [Line Items]
Carryforward with Expiration	640.7
Carryforward Indefinitely	628.2
Total	1,268.9
State (gross, apportioned)
Operating Loss Carryforwards [Line Items]
Carryforward with Expiration	238.4
Carryforward Indefinitely	55.7
Total	$ 294.1