Condensed Consolidated Balance Sheet (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Current assets
Cash and cash equivalents	$ 18,964	$ 16,909
Accounts receivable, net	162,464	150,676
Inventories
Raw materials and supplies	44,711	41,771
Work-in-process and finished goods	30,877	32,987
Prepaid expenses and other current assets	17,024	17,206
Total current assets	274,040	259,549
Property, plant and equipment, at cost	217,580	214,695
Less accumulated depreciation	(133,589)	(131,779)
Net property, plant and equipment	83,991	82,916
Goodwill	59,064	58,152
Other intangible assets, net	31,303	31,783
Investments in associated companies	7,458	7,942
Deferred income taxes	29,368	29,823
Other assets	37,181	35,356
Total assets	522,405	505,521
Current liabilities
Short-term borrowings and current portion of long-term debt	607	636
Accounts and other payables	76,257	68,125
Accrued compensation	9,906	16,987
Other current liabilities	22,889	20,901
Total current liabilities	109,659	106,649
Long-term debt	47,900	46,701
Deferred income taxes	7,236	7,094
Other non-current liabilities	86,946	89,351
Total liabilities	251,741	249,795
Equity
Common stock $1 par value; authorized 30,000,000 shares; issued and outstanding 2012 12,950,752 shares; 2011 12,911,508 shares	12,951	12,912
Capital in excess of par value	90,836	89,725
Retained earnings	184,764	175,932
Accumulated other comprehensive loss	(25,902)	(29,820)
Total Quaker shareholders equity	262,649	248,749
Noncontrolling interest	8,015	6,977
Total equity	270,664	255,726
Total liabilities and equity	$ 522,405	$ 505,521