LEASES - Terms and Discount Rates (Details)	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Weighted-average remaining lease term, Operating leases (in years)	3 years 8 months 12 days	4 years 6 months
Weighted-average remaining lease term, Finance leases (in years)	0 years	0 years
Weighted-average discount rate, Operating leases	4.50%	4.50%
Weighted-average discount rate, Finance leases	0.00%	0.00%