Income Taxes	9 Months Ended
Income Taxes	Sep. 30, 2021
Income Tax Disclosure [Abstract]
Income Taxes	12. Income Taxes The effective tax rates for the three months ended September 30, 2021 and 2020 were 19.5% and 20.2%, respectively. The decrease in the effective tax rate for the three months ended September 30, 2021 relative to the prior comparable period was primarily driven by favorable audit settlements. The effective tax rates for the nine months ended September 30, 2021 and 2020 were 19.0% and 19.3%, respectively. The decrease in the effective tax rate for the nine months ended September 30, 2021 relative to the prior year comparable period was primarily driven by favorable audit settlements. 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 $9.7 million.

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.