LEASES - Additional Information (Details) $ in Millions	Jun. 30, 2019 USD ($)
Leases [Line Items]
Finance lease assets, net of accumulated amortization	$ 20.9
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:PropertyPlantAndEquipmentNet
Operating lease, not yet commenced, liability	$ 12.0
Minimum
Leases [Line Items]
Operating leases, not yet commenced, lease term	1 year
Maximum
Leases [Line Items]
Operating leases, not yet commenced, lease term	15 years