Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Current assets
Cash and cash equivalents	$ 163,455	$ 181,833
Accounts receivable, net	411,523	372,974
Inventories
Raw materials and supplies	97,631	86,148
Work-in-process and finished goods	110,147	101,616
Prepaid expenses and other current assets	48,285	50,156
Total current assets	831,041	792,727
Property, plant and equipment, at cost	416,514	423,253
Less accumulated depreciation	(220,724)	(219,370)
Property, plant and equipment, net	195,790	203,883
Right of use lease assets	38,027	38,507
Goodwill	627,574	631,212
Other intangible assets, net	1,075,343	1,081,358
Investments in associated companies	96,213	95,785
Deferred tax assets	17,057	16,566
Other non-current assets	31,906	31,796
Total assets	2,912,951	2,891,834
Current liabilities
Short-term borrowings and current portion of long-term debt	43,330	38,967
Accounts and other payables	214,015	198,872
Accrued compensation	29,091	43,300
Accrued restructuring	5,970	8,248
Other current liabilities	104,029	93,573
Total current liabilities	396,435	382,960
Long-term debt	859,433	849,068
Long-term lease liabilities	27,050	27,070
Deferred tax liabilities	186,031	192,763
Other non-current liabilities	114,549	119,059
Total liabilities	1,583,498	1,570,920
Equity
Common stock $1 par value; authorized 30,000,000 shares; issued and outstanding 2021 - 17,875,076 shares; 2020 - 17,850,616 shares	17,875	17,851
Capital in excess of par value	908,748	905,171
Retained earnings	455,493	423,940
Accumulated other comprehensive loss	(53,228)	(26,598)
Total Quaker shareholders' equity	1,328,888	1,320,364
Noncontrolling interest	565	550
Total equity	1,329,453	1,320,914
Total liabilities and equity	$ 2,912,951	$ 2,891,834