Business Combinations	3 Months Ended
Business Combinations	Mar. 31, 2021
Business Combination Separately Recognized Transaction [Abstract]
Business Combination Disclosure [Text Block]	Note 2 – Business Acquisitions 2021 Acquisitions In February 2021, the Company acquired a tin-plating solutions business for the steel end market for approximately $ 25 million. The Company allocated $ 19.6 million of the purchase price to intangible assets, comprised of $ 18.3 million of customer relationships, to be amortized over 19 years; $ 0.9 million of existing product technology to be amortized over 14 years; and $ 0.4 million of a licensed trademark to be amortized over 3 years. In addition, the Company recorded $ 5.0 million of goodwill related to expected value not allocated to other acquired assets, all of which is expected to be tax deductible. As of March 31, 2021, the allocation of the purchase price has not been finalized and the one-year measurement period has not ended. Further adjustments may be necessary as a result of the Company’s on-going assessment of additional information related to the fair value of assets acquired and liabilities assumed. Additionally, in February 2021, the Company acquired a 38 % ownership interest in Grindaix-GmbH (“Grindaix”), a privately held, German-based, high-tech provider of coolant control and delivery systems for approximately 1.4 million EUR or approximately $ 1.7 million. Grindaix's solutions apply to a wide range of machining processes, including grinding applications in the metalworking sector. The Company recorded the investment in Grindaix as an equity method investment within the Condensed Consolidated Financial Statements. The results of operations of the acquired businesses subsequent to the respective acquisition dates are included in the Condensed Consolidated Statements of Operations as of March 31, 2021. Transaction expenses associated with these acquisitions are included in Combination, integration and other acquisition-related expenses in the Company’s Condensed Consolidated Statements of Operations. Certain pro forma and other information is not presented, as the operations of the acquired businesses are not considered material to the overall operations of the Company for the periods presented. Previous Acquisitions In December 2020, the Company completed its acquisition of Coral Chemical Company (“Coral”), a privately held, U.S.-based provider of metal finishing fluid solutions. The acquisition provides technical expertise and product solutions for pre-treatment, metalworking and wastewater treatment applications to the beverage cans and general industrial end markets. The original purchase price was approximately $ 54.1 million, subject to routine and customary post-closing adjustments related to working capital and net indebtedness levels. The Company anticipates finalizing its post-closing adjustments for the Coral acquisition in the second quarter of 2021 and currently estimates it will receive approximately $ 0.4 million to settle such adjustments. The following table presents the preliminary estimated fair values of Coral net assets acquired: Measurement December 22, December 22, Period 2020 2020 (1) Adjustments (as adjusted) Cash and cash equivalents $ 958 $ — $ 958 Accounts receivable 8,473 — 8,473 Inventories 4,527 — 4,527 Prepaid expenses and other assets 181 — 181 Property, plant and equipment 10,467 652 11,119 Intangible assets 30,300 (500) 29,800 Goodwill 2,814 53 2,867 Total assets purchased 57,720 205 57,925 Long-term debt including current portions and finance leases 183 556 739 Accounts payable, accrued expenses and other accrued liabilities 3,482 — 3,482 Total liabilities assumed 3,665 556 4,221 Total consideration paid for Coral 54,055 (351) 53,704 Less: estimated purchase price settlement — (351) (351) Less: cash acquired 958 — 958 Net cash paid for Coral $ 53,097 $ — $ 53,097 (1) As previously disclosed in the Company’s 2020 Form 10-K. Measurement period adjustments recorded during the first quarter of 2021 include certain adjustments related to refining original estimates for assets and liabilities for certain acquired finance leases, as well the adjustment to reflect the expected settlement of post- closing working capital and net indebtedness true ups to the original purchase price. As of March 31, 2021, the allocation of the purchase price for Coral has not been finalized and the one-year measurement period has not ended. Further adjustments may be necessary as a result of the Company’s on-going assessment of additional information related to the fair value of assets acquired and liabilities assumed. In May 2020, the Company acquired Tel Nordic ApS (“TEL”), a company that specializes in lubricants and engineering primarily in high pressure aluminum die casting for its Europe, Middle East and Africa (“EMEA”) reportable segment. Consideration paid was in the form of a convertible promissory note in the amount of 20.0 million DKK, or approximately $ 2.9 million, which was subsequently converted into shares of the Company’s common stock. An adjustment to the purchase price of approximately 0.4 million DKK, or less than $ 0.1 million, was made as a result of finalizing a post-closing settlement in the second quarter of 2020. The Company allocated approximately $ 2.4 million of the purchase price to intangible assets to be amortized over 17 years. In addition, the Company recorded approximately $ 0.5 million of goodwill, related to expected value not allocated to other acquired assets, none of which will be tax deductible. As of March 31, 2021, the allocation of the purchase price of TEL has not been finalized and the one- measurement period has not ended. Further adjustments may be necessary as a result of the Company’s on-going assessment of additional information related to the fair value of assets acquired and liabilities assumed. In March 2020, the Company acquired the remaining 49 % ownership interest in one of its South African affiliates, Quaker Chemical South Africa Limited (“QSA”) for 16.7 million ZAR, or approximately $ 1.0 million, from its joint venture partner PQ Holdings South Africa. QSA is a part of the Company’s Europe, Middle East and Africa (“EMEA”) reportable segment. As this acquisition was a change in an existing controlling ownership, the Company recorded $ 0.7 million of excess purchase price over the carrying value of the non-controlling interest in Capital in excess of par value. In October 2019, the Company completed its acquisition of the operating divisions of Norman Hay plc (“Norman Hay”), a private U.K. company that provides specialty chemicals, operating equipment, and services to industrial end markets. The acquisition adds new technologies in automotive, original equipment manufacturer, and aerospace, as well as engineering expertise which is expected to strengthen the Company’s existing equipment solutions platform. The original purchase price was 80.0 million GBP, on a cash-free and debt-free basis, subject to routine and customary post-closing adjustments related to working capital and net indebtedness levels. The Company finalized its post-closing adjustments for the Norman Hay acquisition and paid approximately 2.5 million GBP during the first quarter of 2020 to settle such adjustments.