INCOME TAXES - Additional Information (Details) $ in Millions	Sep. 30, 2017 USD ($)
Federal
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	$ 389.1
Net operating loss carryforwards subject to annual limitation	13.6
State
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	$ 432.8