Income Taxes and Uncertain Tax Positions	9 Months Ended
Sep. 30, 2016
Income Tax Disclosure [Abstract]
Income Tax Disclosure [Text Block]	Note 8 – Income Taxes and Uncertain Income Tax Positions The Company’s effective tax rate for the nine months ended September 30, 2016 was 31.0% compared to 27.3% for the nine months ended September 30, 2015. The increase in the effective tax rate was primarily due to the Company recording earnings in one of its subsidiaries at a statutory tax rate of 25% during the nine months ended September 30, 2016, while it awaits recertification of a concessionary 15% tax rate, which was available to the Company during the nine months ended September 30, 2015. As of September 30, 2016, the Company’s cumulative liability for gross unrecognized tax benefits was $7.1 million. As of December 31, 2015, the Company’s cumulative liability for gross unrecognized tax benefits was $11.0 million. In both the nine months ended September 30, 2016 and 2015, the Company recognized a decrease of $1.5 million in its cumulative liability for gross unrecognized tax benefits due to the expiration of the applicable statutes of limitations for certain tax years. During the nine months ended September 30, 2016, the Company recognized a decrease of $3.6 million in its cumulative liability for gross unrecognized tax benefits due to settlements with tax authorities. There were no similar settlements during the nine months ended September 30, 2015. The Company continues to recognize interest and penalties associated with uncertain tax positions as a component of taxes on income before equity in net income of associated companies in its Condensed Consolidated Statements of Income. The Company recognized ($0.7) million and ($0.6) million for interest and ($0.1) million and $0.2 million for penalties in its Condensed Consolidated Statements of Income for the three and nine months ended September 30, 2016, respectively. The Company recognized ($0.1) million and ($0.2) million for interest and less than ($0.1) million and $0.2 million for penalties in its Condensed Consolidated Statements of Income during the three and nine months ended September 30, 2015, respectively. As of September 30, 2016, the Company had accrued $0.9 million for cumulative interest and $2.1 million for cumulative penalties in its Condensed Consolidated Balance Sheets, compared to $1.5 million for cumulative interest and $1.9 million for cumulative penalties accrued at December 31, 2015. The Company estimates that during the year ending December 31, 2016 it will reduce its cumulative liability for gross unrecognized tax benefits by approximately $2.0 million due to the expiration of the statute of limitations with regard to certain tax positions. This estimated reduction in the cumulative liability for unrecognized tax benefits does not consider any increase in liability for unrecognized tax benefits with regard to existing tax positions or any increase in cumulative liability for unrecognized tax benefits with regard to new tax positions for the year ending December 31, 2016. The Company and its subsidiaries are subject to U.S. Federal income tax, as well as the income tax of various state and foreign tax jurisdictions. Tax years that remain subject to examination by major tax jurisdictions include Brazil from 2000, Italy from 2007, France from 2008, the Netherlands and the United Kingdom from 2010, Spain and China from 2012, the United States from 2013, and various domestic state tax jurisdictions from 1993. In the fourth quarter of 2015, the Dutch tax authorities assessed the Company’s subsidiary, Quaker Chemical B.V., for additional income taxes related to the 2011 tax year and Quaker Chemical B.V. filed a protest of such assessment. During the third quarter of 2016 the Company settled with the Dutch tax authorities for matters related to transfer pricing issues for 2011, 2012, 2013, 2014, and 2015, with no change to the income tax returns as filed. In the first quarter of 2016, the French tax authorities gave notice that they were auditing the Company’s subsidiary Quaker Chemical S.A, and subsequently, during the second quarter of 2016, gave notice that they closed the audit with no additional tax assessed. Also, the Italian tax authorities have assessed additional tax due from the Company’s subsidiary, Quaker Italia S.r.l., relating to the tax years 2007, 2008, 2009 and 2010. In the first quarter of 2016, the Italian tax authorities delivered an audit report to Quaker Italia S.r.l. for the tax years 2011, 2012 and 2013 alleging additional tax due. As of September 30, 2016, the Company believes it has adequate reserves, where merited, for uncertain tax positions with respect to all of these audits.

Note 8 – Income Taxes and Uncertain Income Tax Positions

The Company’s effective tax rate for the nine months ended September 30, 2016 was 31.0% compared to 27.3% for the nine months ended September 30, 2015. The increase in the effective tax rate was primarily due to the Company recording earnings in one of its subsidiaries at a statutory tax rate of 25% during the nine months ended September 30, 2016, while it awaits recertification of a concessionary 15% tax rate, which was available to the Company during the nine months ended September 30, 2015.

As of September 30, 2016, the Company’s cumulative liability for gross unrecognized tax benefits was $7.1 million. As of December 31, 2015, the Company’s cumulative liability for gross unrecognized tax benefits was $11.0 million. In both the nine months ended September 30, 2016 and 2015, the Company recognized a decrease of $1.5 million in its cumulative liability for gross unrecognized tax benefits due to the expiration of the applicable statutes of limitations for certain tax years. During the nine months ended September 30, 2016, the Company recognized a decrease of $3.6 million in its cumulative liability for gross unrecognized tax benefits due to settlements with tax authorities. There were no similar settlements during the nine months ended September 30, 2015.

The Company continues to recognize interest and penalties associated with uncertain tax positions as a component of taxes on income before equity in net income of associated companies in its Condensed Consolidated Statements of Income. The Company recognized ($0.7) million and ($0.6) million for interest and ($0.1) million and $0.2 million for penalties in its Condensed Consolidated Statements of Income for the three and nine months ended September 30, 2016, respectively. The Company recognized ($0.1) million and ($0.2) million for interest and less than ($0.1) million and $0.2 million for penalties in its Condensed Consolidated Statements of Income during the three and nine months ended September 30, 2015, respectively. As of September 30, 2016, the Company had accrued $0.9 million for cumulative interest and $2.1 million for cumulative penalties in its Condensed Consolidated Balance Sheets, compared to $1.5 million for cumulative interest and $1.9 million for cumulative penalties accrued at December 31, 2015.

The Company estimates that during the year ending December 31, 2016 it will reduce its cumulative liability for gross unrecognized tax benefits by approximately $2.0 million due to the expiration of the statute of limitations with regard to certain tax positions. This estimated reduction in the cumulative liability for unrecognized tax benefits does not consider any increase in liability for unrecognized tax benefits with regard to existing tax positions or any increase in cumulative liability for unrecognized tax benefits with regard to new tax positions for the year ending December 31, 2016.

The Company and its subsidiaries are subject to U.S. Federal income tax, as well as the income tax of various state and foreign tax jurisdictions. Tax years that remain subject to examination by major tax jurisdictions include Brazil from 2000, Italy from 2007, France from 2008, the Netherlands and the United Kingdom from 2010, Spain and China from 2012, the United States from 2013, and various domestic state tax jurisdictions from 1993.

In the fourth quarter of 2015, the Dutch tax authorities assessed the Company’s subsidiary, Quaker Chemical B.V., for additional income taxes related to the 2011 tax year and Quaker Chemical B.V. filed a protest of such assessment. During the third quarter of 2016 the Company settled with the Dutch tax authorities for matters related to transfer pricing issues for 2011, 2012, 2013, 2014, and 2015, with no change to the income tax returns as filed. In the first quarter of 2016, the French tax authorities gave notice that they were auditing the Company’s subsidiary Quaker Chemical S.A, and subsequently, during the second quarter of 2016, gave notice that they closed the audit with no additional tax assessed. Also, the Italian tax authorities have assessed additional tax due from the Company’s subsidiary, Quaker Italia S.r.l., relating to the tax years 2007, 2008, 2009 and 2010. In the first quarter of 2016, the Italian tax authorities delivered an audit report to Quaker Italia S.r.l. for the tax years 2011, 2012 and 2013 alleging additional tax due. As of September 30, 2016, the Company believes it has adequate reserves, where merited, for uncertain tax positions with respect to all of these audits.