Annual report pursuant to Section 13 and 15(d)

EMPLOYEE BENEFIT PLAN (Details)

v3.20.4
EMPLOYEE BENEFIT PLAN (Details) - USD ($)
12 Months Ended
Jan. 01, 2019
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Retirement Benefits [Abstract]        
Employee minimum service period 60 days      
Employee maximum annual contribution $ 19,500      
Annual vesting percentage of company contributions 25.00%      
Vesting term 4 years      
Employer match percentage of employee contribution 100.00%      
Maximum annual match, percentage of gross salary 6.00%      
Plan expense   $ 2,100,000 $ 3,000,000.0 $ 300,000