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LEASES - Narrative (Details)
$ in Millions
12 Months Ended
Dec. 31, 2020
USD ($)
renewal_Option
Leases [Abstract]  
Number of subleases | renewal_Option 2
Lease term 5 years
Loss on early lease terminations $ 0.7
Sublease rental income, to be received 2021 1.5
Sublease rental income, to be received 2022 1.5
Sublease rental income, to be received 2023 $ 1.5