LEASES - Supplemental Balance Sheet Information (Details) $ in Thousands	Sep. 30, 2020 USD ($)
Leases [Abstract]
Other current liabilities	$ 798
Other non-current liabilities	27,922
Total lease liabilities	$ 28,720
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesCurrent
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesNoncurrent