Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current assets
Cash and cash equivalents	$ 123,524	$ 104,147
Accounts receivable, net	375,982	202,139
Inventories, net	174,950	94,090
Prepaid expenses and other current assets	41,516	18,134
Total current assets	715,972	418,510
Property, plant and equipment, net	213,469	83,923
Right of use lease assets	42,905	0
Goodwill	607,205	83,333
Other intangible assets, net	1,121,765	63,582
Investments in associated companies	93,822	21,316
Deferred tax assets	14,745	6,946
Other non-current assets	40,433	32,055
Total assets	2,850,316	709,665
Current liabilities
Short-term borrowings and current portion of long-term debt	38,332	670
Accounts payable	164,101	87,819
Dividends payable	6,828	4,935
Accrued compensation	45,620	25,727
Accrued restructuring	18,043	0
Accrued pension and postretirement benefits	3,405	1,211
Other accrued liabilities	83,605	31,108
Total current liabilities	359,934	151,470
Long-term debt	882,437	35,934
Long-term lease liabilities	31,273	0
Deferred tax liabilities	211,094	10,003
Non-current accrued pension and post-retirment benefits	56,828	32,360
Other non-current liabilities	66,384	43,529
Total liabilities	1,607,950	273,296
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Common stock, $1 par value; authorized 30,000,000 shares; issued and outstanding 2019 - 17,735,162 shares; 2018 - 13,338,026 shares	17,735	13,338
Capital in excess of par value	888,218	97,304
Retained earnings	412,979	405,125
Accumulated other comprehensive loss	(78,170)	(80,715)
Total Quaker shareholders' equity	1,240,762	435,052
Noncontrolling interest	1,604	1,317
Total equity	1,242,366	436,369
Total liabilities and equity	$ 2,850,316	$ 709,665