Accounting Policies	9 Months Ended
Oct. 02, 2026
Accounting Policies [Abstract]
Accounting Policies	Accounting Policies Basis of Presentation: The accompanying consolidated financial statements of Materion Corporation and its subsidiaries (referred to herein as the Company, our, we, or us) contain all of the adjustments necessary to present fairly the financial position, results of operations, and cash flows for the interim periods reported. All adjustments were of a normal and recurring nature. These consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes included in the Company's 2025 Annual Report on Form 10-K. The interim period results are not necessarily indicative of the results to be expected for the full year. New Accounting Guidance Issued and Not Yet Adopted: In November 2024, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses, which is intended to improve disclosures about a public business entity's expenses and address requests from investors for more detailed information about the types of expenses in commonly presented expense captions. Such information should allow investors to better understand an entity's performance, assess future cash flows, and compare performance over time and with other entities. The amendments will require public business entities to disclose in the notes to the financial statements, at each interim and annual reporting period, specific information about certain costs and expenses, including purchases of inventory, employee compensation, depreciation, and intangible asset amortization included in each expense caption presented on the face of the income statement, and the total amount of an entity's selling expenses. The amendments are effective for annual reporting periods beginning after December 15, 2026, and interim reporting periods beginning after December 15, 2027, and may be applied either prospectively or retrospectively. Early adoption is permitted. While the adoption of ASU 2024-03 will result in enhanced disclosures, the Company does not expect it will have a material impact on its financial condition or results of operations. In September 2025, the FASB issued ASU 2025-06, Intangibles-Goodwill and Other-internal-use software (Subtopic 350-40): Targeted Improvements to the Accounting for internal-use software. The amendments in this ASU make targeted improvements to Subtopic 350-40, Intangibles-Goodwill and Other-internal-use software, to increase the operability of the recognition guidance considering different methods of software development. This ASU is effective for fiscal years beginning after December 15, 2027, and interim periods within those annual reporting periods, with early adoption permitted. The Company is currently evaluating the impact that the adoption of this ASU will have on its condensed consolidated financial statements and related disclosures. In December 2025, the FASB issued 2025‑10, Government Grants (Topic 832): Accounting for Government Grants Received by Business Entities. This ASU establishes comprehensive U.S. GAAP guidance for the recognition, measurement, and presentation of government grants received by business entities. The amendments incorporate principles similar to those in International Accounting Standards (IAS) 20 and are intended to reduce diversity in practice by providing a consistent framework for accounting for monetary and tangible nonmonetary government grants. This ASU is effective for fiscal years beginning after December 15, 2028, and interim periods within those annual reporting periods, with early adoption permitted. The Company is currently evaluating the impact that the adoption of this ASU will have on its condensed consolidated financial statements and related disclosures. In December 2025, the FASB issued ASU 2025-11, Interim Reporting (Topic 270): Narrow-scope improvements. The amendments clarify the scope, form, and content of interim financial statement disclosures and improve the navigability of Topic 270 without changing existing interim reporting requirements. This ASU is effective for fiscal years beginning after December 15, 2027, and interim periods within those annual reporting periods, with early adoption permitted. The Company is currently evaluating the impact that the adoption of this ASU will have on its interim financial reporting and related disclosures.

The accompanying consolidated financial statements of Materion Corporation and its subsidiaries (referred to herein as the Company, our, we, or us) contain all of the adjustments necessary to present fairly the financial position, results of operations, and cash flows for the interim periods reported. All adjustments were of a normal and recurring nature.

In November 2024, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses, which is intended to improve disclosures about a public business entity's expenses and address requests from investors for more detailed information about the types of expenses in commonly presented expense captions. Such information should allow investors to better understand an entity's performance, assess future cash flows, and compare performance over time and with other entities. The amendments will require public business entities to disclose in the notes to the financial statements, at each interim and annual reporting period, specific information about certain costs and expenses, including purchases of inventory, employee compensation, depreciation, and intangible asset amortization included in each expense caption presented on the face of the income statement, and the total amount of an entity's selling expenses. The amendments are effective for annual reporting periods beginning after December 15, 2026, and interim reporting periods beginning after December 15, 2027, and may be applied either prospectively or retrospectively. Early adoption is permitted. While the adoption of ASU 2024-03 will result in enhanced disclosures, the Company does not expect it will have a material impact on its financial condition or results of operations.

In September 2025, the FASB issued ASU 2025-06, Intangibles-Goodwill and Other-internal-use software (Subtopic 350-40): Targeted Improvements to the Accounting for internal-use software. The amendments in this ASU make targeted improvements to Subtopic 350-40, Intangibles-Goodwill and Other-internal-use software, to increase the operability of the recognition guidance considering different methods of software development. This ASU is effective for fiscal years beginning after December 15, 2027, and interim periods within those annual reporting periods, with early adoption permitted. The Company is currently evaluating the impact that the adoption of this ASU will have on its condensed consolidated financial statements and related disclosures.

In December 2025, the FASB issued 2025‑10, Government Grants (Topic 832): Accounting for Government Grants Received by Business Entities. This ASU establishes comprehensive U.S. GAAP guidance for the recognition, measurement, and presentation of government grants received by business entities. The amendments incorporate principles similar to those in International Accounting Standards (IAS) 20 and are intended to reduce diversity in practice by providing a consistent framework for accounting for monetary and tangible nonmonetary government grants. This ASU is effective for fiscal years beginning after December 15, 2028, and interim periods within those annual reporting periods, with early adoption permitted. The Company is currently evaluating the impact that the adoption of this ASU will have on its condensed consolidated financial statements and related disclosures.