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REVENUE FROM CONTRACTS WITH CUSTOMERS (Details)

v3.21.2
REVENUE FROM CONTRACTS WITH CUSTOMERS (Details) - OLD PlayStudios, Inc. - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Disaggregation of Revenue [Line Items]          
Total net revenue $ 74,097 $ 58,302 $ 269,882 $ 239,421 $ 195,499
United States          
Disaggregation of Revenue [Line Items]          
Total net revenue 64,074 49,152 228,568 200,418 162,135
All other countries          
Disaggregation of Revenue [Line Items]          
Total net revenue 10,023 9,150 41,314 39,003 33,364
Virtual currency          
Disaggregation of Revenue [Line Items]          
Total net revenue 73,226 58,168 268,137 231,726 193,849
Advertising          
Disaggregation of Revenue [Line Items]          
Total net revenue $ 871 $ 134 $ 1,745 383 356
Other          
Disaggregation of Revenue [Line Items]          
Total net revenue       $ 7,312 $ 1,294