Annual report pursuant to Section 13 and 15(d)

REVENUE RECOGNITION - Changes in Contract Liabilities (Details)

v3.20.4
REVENUE RECOGNITION - Changes in Contract Liabilities (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Change in Contract with Customer, Liability [Roll Forward]    
Outstanding at December 31, 2019 $ 955 $ 1,079
Increase (decrease) attributed to:    
Customer loyalty net deferrals 7,370 4,969
Customer loyalty redemptions (7,342) (5,093)
Outstanding at December 31, 2020 $ 983 $ 955