Condensed Consolidated Statement of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017
Statement of Comprehensive Income [Abstract]
Net Income	$ 12,787	$ 7,614
Currency Translation Adjustments	6,859	5,448
Defined Benefit Retirement Plans	84	318
Unrealized Gain (loss) on Available-for-Sale Securities	(486)	200
Other Comprehensive (loss) income	6,457	5,966
Comprehensive Income	19,244	13,580
Less: Comprehensive Income Attributable to Noncontrolling Interest	(150)	(1,142)
Comprehensive Income Attributable to Quaker Chemical Corporation	$ 19,094	$ 12,438

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax, before reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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Amount after tax, before reclassification adjustments, of unrealized holding gain (loss) on available-for-sale securities.

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