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Income Taxes
9 Months Ended
Sep. 30, 2020
Income Tax Disclosure [Abstract]  
Income Taxes
12. Income Taxes
 
The Company’s tax provision for interim periods is determined using an estimate of its annual current and deferred effective tax rates, adjusted for discrete items. The effective tax rate, based upon actual operating results, was 21.2% for the three months ended September 30, 2020, and 39.9% for the nine months ended September 30, 2020, compared to 22.5% for the three months ended September 30, 2019, and 24.3% for the nine months ended September 30, 2019.

The Company’s effective tax rate is typically impacted by non-deductible executive compensation and other permanent differences as well as state income taxes, which cause the Company’s effective tax rate to deviate from the federal statutory rate. In addition, the effective tax rate for three and nine months ended September 30, 2020, was impacted by the gain on the deconsolidation of 110 North Wacker (refer to Note 3 - Real Estate and Other Affiliates for additional details), a tax expense related to the recapture of federal and state historic preservation credits due to the sale of our interest in Mr. C Seaport (refer to Note 4 - Recent Transactions for additional details) and a valuation allowance on our carryover for charitable contributions.