Consolidated Statement of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Statement [Abstract]
Net sales	$ 729,395	$ 708,226	$ 683,231
Cost of goods sold	468,320	469,515	460,581
Selling, general and administrative expenses	189,832	175,487	164,738
Costs and Expenses, Total	658,152	645,002	625,319
Operating income	71,243	63,224	57,912
Other income, net	3,519	3,415	5,050
Interest expense	(2,922)	(4,283)	(4,666)
Interest income	986	592	1,081
Income before taxes and equity in net income of associated companies	72,826	62,948	59,377
Taxes on income before equity in net income of associated companies	20,489	15,575	14,256
Income before equity in net income of associated companies	52,337	47,373	45,121
Equity in net income of associated companies	6,514	2,867	3,102
Net income	58,851	50,240	48,223
Net income attributable to noncontrolling interest	2,512	2,835	2,331
Net income attributable to Quaker Chemical Corporation	$ 56,339	$ 47,405	$ 45,892
Per share data:
Net income attributable to Quaker Chemical Corporation Common Shareholders - basic	$ 4.28	$ 3.64	$ 3.71
Net income attributable to Quaker Chemical Corporation Common Shareholders - diluted	$ 4.27	$ 3.63	$ 3.66