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, 2019
Dec. 31, 2018
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 2.90% 5.50%
U.S. tax impact of foreign operations 12.30% 102.50%
Valuation allowance change 10.30% (13.90%)
Unrecognized tax benefits (3.30%) (58.70%)
Permanent foreign items 4.40% 28.60%
Withholding tax on royalties 4.20% 20.00%
Stock compensation 7.10% 12.70%
Tax return to provision differences (3.70%) 11.70%
Elimination of provision on intercompany transactions (0.60%) 4.40%
Other 1.10% 3.80%
Effective income tax rate 55.70% 137.60%