Annual report pursuant to Section 13 and 15(d)

INCOME TAXES (Provision (Benefit) for Income Taxes as a Percent) (Details)

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INCOME TAXES (Provision (Benefit) for Income Taxes as a Percent) (Details)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Income Tax Disclosure [Abstract]    
Statutory U.S. federal income tax rate 21.00% 21.00%
State income taxes, net of U.S. federal income tax benefit 1.30% 2.90%
U.S. tax impact of foreign operations 6.70% 12.30%
Valuation allowance change (25.00%) 10.30%
Unrecognized tax benefits (6.10%) (3.30%)
Permanent foreign items 3.10% 4.40%
Withholding tax on royalties 2.80% 4.20%
Stock compensation (0.40%) 7.10%
Tax return to provision differences (3.30%) (3.70%)
Elimination of provision on intercompany transactions (2.00%) (0.60%)
Other 1.30% 1.10%
Effective income tax rate (0.60%) 55.70%