Condensed Consolidated Statement of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Income Statement [Abstract]
Net Sales	$ 184,059	$ 180,923	$ 545,098	$ 535,358
Cost of goods sold	118,069	121,797	349,186	355,801
Gross profit	65,990	59,126	195,912	179,557
Selling, general and administrative expenses	47,183	43,263	139,901	130,009
Operating income	18,807	15,863	56,011	49,548
Other (Expense) Income, Net	(685)	322	1,962	529
Interest Expense	(717)	(1,034)	(2,223)	(3,359)
Interest Income	267	149	665	409
Income Before Taxes and Equity in Net Income of Associated Companies	17,672	15,300	56,415	47,127
Taxes on income before equity in net income of associated companies	5,972	4,373	16,933	12,692
Income before equity in net income of associated companies	11,700	10,927	39,482	34,435
Equity in net income of associated companies	1,605	696	4,689	2,038
Net Income	13,305	11,623	44,171	36,473
Less: Net income attributable to noncontrolling interest	754	698	1,918	2,075
Net Income Attributable to Quaker Chemical Corporation	$ 12,551	$ 10,925	$ 42,253	$ 34,398
Per share data:
Basic Earnings Per Common Share	$ 0.95	$ 0.84	$ 3.21	$ 2.65
Diluted Earnings per Common Share	$ 0.95	$ 0.83	$ 3.21	$ 2.63
Dividends Declared	$ 0.25	$ 0.245	$ 0.745	$ 0.73