INCOME TAXES - Difference between actual rate and federal statutory rate (Details) - OLD PlayStudios, Inc.	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statutory rate	21.00%	21.00%	21.00%
Foreign provision	(0.30%)	(6.50%)	10.20%
State/province income tax	0.10%	5.60%	5.60%
Stock compensation	(19.20%)	7.50%	40.10%
Other effects of check-the-box election	(6.20%)	0.20%	0.00%
Research credit	(11.50%)	(5.90%)	(24.10%)
Adjustment to carrying value	(4.00%)	(0.30%)	(0.90%)
Foreign tax credit	(9.10%)	(0.70%)	(0.00%)
Valuation allowance	9.00%	0.00%	0.00%
Foreign-derived intangible income deduction (FDII)	(2.70%)	(1.10%)	(3.40%)
Non-deductible expenses-other	2.40%	2.00%	3.60%
Foreign branch income	4.50%	1.00%	0.00%
Other	1.00%	(0.20%)	(0.90%)
Effective tax rate	(15.00%)	22.60%	51.20%

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.

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Percentage of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations attributable to deduction. Includes, but is not limited to, dividend deduction, deduction for dividend paid to employee stock ownership plan (ESOP), Medicare prescription drug benefit subsidy deduction, and other deductions.

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