Income Taxes	6 Months Ended
Jun. 30, 2017
Income Tax Disclosure [Abstract]
Income Taxes	10. Income Taxes The effective tax rates for the three months ended June 30, 2017 and 2016 were 28.9% and 28.1%, respectively. The increase in the effective tax rate for the three months ended June 30, 2017 relative to the prior comparable period is principally due to an increase in tax expense from discrete items in 2017 compared to 2016. The discrete items for the three months ended June 30, 2017 primarily resulted from the provision to return adjustments in foreign jurisdictions and the effect of the settlement of the 2013 IRS audit. The discrete items for the three months ended June 30, 2016 principally resulted from reassessment of the realizable benefits of certain state credits. The effective tax rates for the six months ended June 30, 2017 and 2016 were 27.3% and 25.5%, respectively. The increase in the effective tax rate for the six months ended June 30, 2017 relative to the prior comparable period is primarily due to the benefit in the prior year from the revaluation of deferred tax balances as a result of a tax rate reduction in a non-U.S. jurisdiction, as well as the current year recognition of foreign adjustments to filed tax returns. For the six months ended June 30, 2017, stock-based compensation excess tax benefits of $4,623 were reflected in the Condensed Consolidated Statement of Earnings as a component of the provision for income taxes as a result of adopting Accounting Standards Update ("ASU") 2016-09, Compensation Stock Compensation (Topic 718). See Note 18 — Recent Accounting Pronouncements regarding the adoption of the standard. Dover and its subsidiaries file tax returns in the U.S., including various state and local returns and in other foreign jurisdictions. We believe adequate provision has been made for all income tax uncertainties. The Company is routinely audited by taxing authorities in its filing jurisdictions, and a number of these audits are currently underway. The Company believes that within the next twelve months uncertain tax positions may be resolved and statutes of limitations will expire, which could result in a decrease in the gross amount of unrecognized tax benefits of approximately zero to $27,899.

Income Taxes

6 Months Ended

Jun. 30, 2017

10. Income Taxes

The effective tax rates for the three months ended June 30, 2017 and 2016 were 28.9% and 28.1%, respectively. The increase in the effective tax rate for the three months ended June 30, 2017 relative to the prior comparable period is principally due to an increase in tax expense from discrete items in 2017 compared to 2016.

The discrete items for the three months ended June 30, 2017 primarily resulted from the provision to return adjustments in foreign jurisdictions and the effect of the settlement of the 2013 IRS audit. The discrete items for the three months ended June 30, 2016 principally resulted from reassessment of the realizable benefits of certain state credits.

The effective tax rates for the six months ended June 30, 2017 and 2016 were 27.3% and 25.5%, respectively. The increase in the effective tax rate for the six months ended June 30, 2017 relative to the prior comparable period is primarily due to the benefit in the prior year from the revaluation of deferred tax balances as a result of a tax rate reduction in a non-U.S. jurisdiction, as well as the current year recognition of foreign adjustments to filed tax returns.

For the six months ended June 30, 2017, stock-based compensation excess tax benefits of $4,623 were reflected in the Condensed Consolidated Statement of Earnings as a component of the provision for income taxes as a result of adopting Accounting Standards Update ("ASU") 2016-09, Compensation Stock Compensation (Topic 718). See Note 18 — Recent Accounting Pronouncements regarding the adoption of the standard.

Dover and its subsidiaries file tax returns in the U.S., including various state and local returns and in other foreign jurisdictions. We believe adequate provision has been made for all income tax uncertainties. The Company is routinely audited by taxing authorities in its filing jurisdictions, and a number of these audits are currently underway. The Company believes that within the next twelve months uncertain tax positions may be resolved and statutes of limitations will expire, which could result in a decrease in the gross amount of unrecognized tax benefits of approximately zero to $27,899.