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INCOME TAXES
 9 Months Ended
Sep. 30, 2021
Income Tax Disclosure [Abstract]  
INCOME TAXES INCOME TAXES
The Company recorded an income tax expense of $0.5 million and an income tax benefit of $8.0 million for the three and nine months ended September 30, 2021, respectively, compared to an income tax benefit of $1.4 million and $1.6 million for the three and nine months ended September 30, 2020, respectively. The difference between income before income tax and the income tax benefit recorded for the three and nine months ended September 30, 2021 is primarily due to a change in the valuation allowance in the U.S. and excess share-based compensation tax deductions. The difference between the income tax benefit for the three and nine months ended September 30, 2021 and the income tax benefit for the three and nine months ended September 30, 2020 primarily relates to an increase in excess share-based compensation deductions.

The tax provision for the three and nine months ended September 30, 2021 and September 30, 2020, is calculated on a jurisdictional basis. The Company estimated the worldwide income tax provision using the estimated annual effective income tax rate expected to be applicable for the full year. The Company’s effective tax rate may be subject to fluctuations during the year as new information is obtained, which may affect the assumptions used to estimate the annual effective tax rate, including factors such as the mix of forecasted pre-tax earnings in the various jurisdictions in which the Company operates, changes in valuation allowances against deferred tax assets, the recognition and de-recognition of tax benefits related to uncertain tax positions, and changes in or the interpretation of tax laws in jurisdictions where the Company conducts business.

As of September 30, 2021, the Company retains a full valuation allowance on its net deferred tax assets in the U.S. and certain foreign jurisdictions. The realization of the Company’s deferred tax assets depends primarily on its ability to generate taxable income in future periods. The amount of deferred tax assets considered realizable in future periods may change as management continues to reassess the underlying factors it uses in estimating future taxable income.