Quarterly report pursuant to Section 13 or 15(d)

INTANGIBLE ASSETS - Additional Information (Details)

v3.21.2
INTANGIBLE ASSETS - Additional Information (Details) - USD ($)
3 Months Ended 6 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Jun. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]            
Impairment on indefinite lived intangible assets     $ 0      
Total amortization expense $ 500,000 $ 500,000   $ 1,600,000 $ 1,600,000  
Accumulated amortization $ 4,600,000     4,600,000   $ 3,000,000.0
Impairment on finite lived intangible assets     0      
Goodwill activity       $ 0    
ACT            
Finite-Lived Intangible Assets [Line Items]            
Goodwill acquired     $ 6,000,000.0