Income Taxes	6 Months Ended
Jun. 30, 2020
Income Tax Disclosure [Abstract]
Income Taxes	Note 9 — Income Taxes Forrester provides for income taxes on an interim basis according to management’s estimate of the effective tax rate expected to be applicable for the full fiscal year. Certain items such as changes in tax rates, tax benefits or expense related to settlements of share-based payment awards, and foreign currency gains or losses are treated as discrete items and are recorded in the period in which they arise. Income tax expense for the six months ended June 30, 2020 was $0.3 million resulting in an effective tax rate of 2.2% for the period. Income tax expense for the six months ended June 30, 2019 was $0.7 million resulting in an effective tax rate of (6.0)% for the period. The decrease in income tax expense during the 2020 period was due to the release of a U.S. valuation allowance on capital loss carryforwards. The Company anticipates that its effective tax rate for the full year 2020 will be approximately 1%. On March 27, 2020, Congress enacted the Coronavirus Aid, Relief and Economic Security ("CARES") Act to provide certain relief as a result of the COVID-19 outbreak. The Company is currently evaluating the potential impact that the provisions in the CARES may have on its financial position and results of operations. In July 2015, the U.S. Tax Court issued an opinion in Altera Corp. v. Commissioner related to the treatment of stock-based compensation expense in an intercompany cost-sharing arrangement. The opinion invalidates part of a treasury regulation requiring stock-based compensation to be included in any qualified intercompany cost-sharing arrangement. The Company previously recorded a tax benefit based on the opinion in the case. In June 2019, the U.S. Court of Appeals for Ninth Circuit reversed the U.S. Tax Court’s decision. Altera Corp. submitted its appeal for an en banc rehearing before the U.S. Court of Appeals for the Ninth Circuit, which was subsequently denied. During 2020, Altera Corp. submitted a request to the Supreme Court to accept the case for review, which was also denied, resulting in finality of any legal recourse. The Company maintains its previously recorded tax benefit in accordance with the U.S. Tax Court decision.

Income Taxes

6 Months Ended

Jun. 30, 2020

Note 9 — Income Taxes

Forrester provides for income taxes on an interim basis according to management’s estimate of the effective tax rate expected to be applicable for the full fiscal year. Certain items such as changes in tax rates, tax benefits or expense related to settlements of share-based payment awards, and foreign currency gains or losses are treated as discrete items and are recorded in the period in which they arise.

Income tax expense for the six months ended June 30, 2020 was $0.3 million resulting in an effective tax rate of 2.2% for the period. Income tax expense for the six months ended June 30, 2019 was $0.7 million resulting in an effective tax rate of (6.0)% for the period. The decrease in income tax expense during the 2020 period was due to the release of a U.S. valuation allowance on capital loss carryforwards.

The Company anticipates that its effective tax rate for the full year 2020 will be approximately 1%.

On March 27, 2020, Congress enacted the Coronavirus Aid, Relief and Economic Security ("CARES") Act to provide certain relief as a result of the COVID-19 outbreak. The Company is currently evaluating the potential impact that the provisions in the CARES may have on its financial position and results of operations.

In July 2015, the U.S. Tax Court issued an opinion in Altera Corp. v. Commissioner related to the treatment of stock-based compensation expense in an intercompany cost-sharing arrangement. The opinion invalidates part of a treasury regulation requiring stock-based compensation to be included in any qualified intercompany cost-sharing arrangement. The Company previously recorded a tax benefit based on the opinion in the case. In June 2019, the U.S. Court of Appeals for Ninth Circuit reversed the U.S. Tax Court’s decision. Altera Corp. submitted its appeal for an en banc rehearing before the U.S. Court of Appeals for the Ninth Circuit, which was subsequently denied. During 2020, Altera Corp. submitted a request to the Supreme Court to accept the case for review, which was also denied, resulting in finality of any legal recourse. The Company maintains its previously recorded tax benefit in accordance with the U.S. Tax Court decision.