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Basis of Presentation | 9 Months Ended
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Sep. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Basis of Presentation | 1) Basis of P resentation The terms "MKS" and the "Company" refer to MKS Instruments, Inc. and its subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. The interim financial data as of September 30, 2022, and for the three and nine months ended September 30, 2022, are unaudited; however, in the opinion of MKS, the interim data includes all adjustments, consisting of normal recurring adjustments, necessary for a fair statement of the results for the interim periods. The condensed consolidated balance sheet presented as of December 31, 2021 has been derived from the consolidated audited financial statements as of that date. The unaudited condensed consolidated financial statements presented herein have been prepared in accordance with the instructions to Form 10-Q and do not include all of the information and note disclosures required by United States generally accepted accounting principles ("U.S. GAAP"). The unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the MKS Annual Report on Form 10-K for the year ended December 31, 2021 filed with the U.S. Securities and Exchange Commission on February 28, 2022. The preparation of these unaudited condensed consolidated financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent liabilities at the date of the unaudited condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. On an on-going basis, management evaluates its estimates and judgments, including those related to revenue recognition, inventory valuation, warranty costs, stock-based compensation, intangible assets, goodwill, other long-lived assets and income taxes. Management bases its estimates and judgments on historical experience and on various other factors that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions. In the first quarter of 2022, MKS updated the names of its then-three divisions in order to simplify its naming convention. These divisions, formerly known as the Vacuum & Analysis Division, the Light & Motion Division and the Equipment & Solutions Division, were renamed the Vacuum Solutions Division ("VSD"), the Photonics Solutions Division ("PSD") and the Equipment Solutions Division ("ESD"), respectively. On August 17, 2022, the Company completed its acquisition of Atotech Limited ("Atotech") and refers to Atotech as its Materials Solutions Division ("MSD"). During the third quarter of 2022, MKS consolidated its Equipment Solutions business, previously ESD, into a component of PSD and prior periods were recast to reflect this change. MKS' reportable segments as of September 30, 2022 consist of its current three divisions, VSD, PSD and MSD. For additional information about the acquisition of Atotech (the "Atotech Acquisition"), see Note 8 to the condensed consolidated financial statements.

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