REVENUE FROM CONTRACTS WITH CUSTOMERS - Transaction Price Allocated to Remaining Performance Obligations (Details) $ in Thousands	Sep. 30, 2020 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue expected to be recognized on contract liability amounts as of end of period	$ 2,734
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue expected to be recognized on contract liability amounts as of end of period	$ 1,446
Revenue, Performance Obligation [Abstract]
Revenue expected to be recognized on contract liability, satisfaction period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue expected to be recognized on contract liability amounts as of end of period	$ 1,288
Revenue, Performance Obligation [Abstract]
Revenue expected to be recognized on contract liability, satisfaction period	2 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue expected to be recognized on contract liability amounts as of end of period	$ 0
Revenue, Performance Obligation [Abstract]
Revenue expected to be recognized on contract liability, satisfaction period	2 years