BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES (Policies)	3 Months Ended
Mar. 31, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation — The accompanying unaudited Condensed Consolidated Financial Statements have been prepared by IPG Photonics Corporation, or "IPG", "its" or the "Company". Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission ("SEC"). The Condensed Consolidated Financial Statements include the Company's accounts and those of its subsidiaries. All intercompany balances have been eliminated in consolidation. These Condensed Consolidated Financial Statements should be read in conjunction with the Consolidated Financial Statements and notes thereto in the Company's Annual Report on Form 10-K for the year ended December 31, 2025.
Reclassifications	Beginning in the current period, the Company revised the categories used to disaggregate revenue by application and by product to better reflect how management evaluates the business. Certain prior-period amounts have been reclassified to conform to the current-period presentation. These changes had no impact on total revenue or other previously reported condensed consolidated financial statement amounts.
Subsequent Events	Subsequent Events — The Company has considered the impact of subsequent events through the filing date of these financial statements. There were no events through the filing date of these financial statements required to be disclosed other than from the Trumpf settlement agreement disclosed within Note 10 "Commitments and Contingencies".
Adopted Pronouncement / Pronouncements Currently Under Evaluation	Adopted Pronouncement — In July 2025, the FASB issued ASU No. 2025-05, "Financial Instruments - Credit Losses (Topic 326): Measurements of Credit Losses for Accounts Receivable and Contract Assets" ("ASU 2025-05"), which provides a practical expedient to apply ASC 326 to current accounts receivable and current contract assets. The practical expedient allows the Company to make a policy election to assume that current conditions as of the balance sheet date will not change for the remaining lives of the assets. ASU 2025-05 is effective for fiscal years beginning after December 15, 2025, and interim reporting periods within those years. The Company has adopted ASU No. 2025-05 in the first quarter of fiscal year 2026 and it did not have a material impact on the Condensed Consolidated Financial Statements and disclosures as a result of the adoption. Pronouncements Currently Under Evaluation — In November 2024, the FASB issued ASU No. 2024-03, "Income Statement - Reporting Comprehensive Income - Expense Aggregation Disclosures (Subtopic 220-40)" ("ASU 2024-03"), which requires more detailed disaggregated disclosure of income statement expenses. ASU 2024-03 is effective for fiscal years beginning after December 15, 2026, and interim periods beginning after December 15, 2027. The Company is evaluating the impact of this ASU on its Condensed Consolidated Financial Statements. In September 2025, the FASB issued ASU No. 2025-06, "Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40)" ("ASU 2025-06"), which updates guidance regarding the requirements to begin capitalizing internal-use software. ASU 2025-06 is effective for annual reporting periods beginning after December 15, 2027, and interim reporting periods within those annual reporting periods. The Company is evaluating the impact of this ASU on its Condensed Consolidated Financial Statements. In December 2025, the FASB issued ASU No. 2025‑10, “Government Grants (Topic 832): Accounting for Government Grants Received by Business Entities” (“ASU 2025‑10”), which establishes authoritative guidance on the accounting for government grants received by business entities, including guidance for a grant related to an asset and a grant related to income. The new standard allows for a number of accounting policy elections to be made upon adoption and be applied to the subsequent grants received on a prospective basis. ASU 2025‑10 is effective for annual reporting periods beginning after December 15, 2028, and interim periods within those annual reporting periods. The Company is currently evaluating the impact of this ASU on its Condensed Consolidated Financial Statements. In December 2025, the FASB issued ASU No. 2025‑11, “Interim Reporting (Topic 270): Narrow‑Scope Improvements” (“ASU 2025‑11”), which improves the navigability of the required interim disclosures and clarifies when that guidance is applicable. The ASU is effective for interim reporting periods within annual reporting periods beginning after December 15, 2027. The amendments can be applied either (1) prospectively or (2) retrospectively to any or all prior periods presented in the financial statements. The Company is currently evaluating the impact of the adoption of this ASU on its Condensed Consolidated Financial Statements. In December 2025, the FASB issued ASU No. 2025‑12, “Codification Improvements” (“ASU 2025‑12”), as part of its ongoing project to enhance the clarity and usability of the FASB Codification. The amendments address a broad range of topics and include technical corrections, clarifications, updates for unintended application issues, and other minor improvements. ASU 2025‑12 is effective for annual reporting periods beginning after December 15, 2026, and interim periods within those annual reporting periods. The Company is currently evaluating the impact of this ASU on its Condensed Consolidated Financial Statements.

BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES (Policies)

3 Months Ended

Mar. 31, 2026

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation — The accompanying unaudited Condensed Consolidated Financial Statements have been prepared by IPG Photonics Corporation, or "IPG", "its" or the "Company". Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission ("SEC"). The Condensed Consolidated Financial Statements include the Company's accounts and those of its subsidiaries. All intercompany balances have been eliminated in consolidation. These Condensed Consolidated Financial Statements should be read in conjunction with the Consolidated Financial Statements and notes thereto in the Company's Annual Report on Form 10-K for the year ended December 31, 2025.

Reclassifications

Beginning in the current period, the Company revised the categories used to disaggregate revenue by application and by product to better reflect how management evaluates the business. Certain prior-period amounts have been reclassified to conform to the current-period presentation. These changes had no impact on total revenue or other previously reported condensed consolidated financial statement amounts.

Subsequent Events

Subsequent Events — The Company has considered the impact of subsequent events through the filing date of these financial statements. There were no events through the filing date of these financial statements required to be disclosed other than from the Trumpf settlement agreement disclosed within Note 10 "Commitments and Contingencies".

Adopted Pronouncement / Pronouncements Currently Under Evaluation

Adopted Pronouncement — In July 2025, the FASB issued ASU No. 2025-05, "Financial Instruments - Credit Losses (Topic 326): Measurements of Credit Losses for Accounts Receivable and Contract Assets" ("ASU 2025-05"), which provides a practical expedient to apply ASC 326 to current accounts receivable and current contract assets. The practical expedient allows the Company to make a policy election to assume that current conditions as of the balance sheet date will not change for the remaining lives of the assets. ASU 2025-05 is effective for fiscal years beginning after December 15, 2025, and interim reporting periods within those years. The Company has adopted ASU No. 2025-05 in the first quarter of fiscal year 2026 and it did not have a material impact on the Condensed Consolidated Financial Statements and disclosures as a result of the adoption.

Pronouncements Currently Under Evaluation — In November 2024, the FASB issued ASU No. 2024-03, "Income Statement - Reporting Comprehensive Income - Expense Aggregation Disclosures (Subtopic 220-40)" ("ASU 2024-03"), which requires more detailed disaggregated disclosure of income statement expenses. ASU 2024-03 is effective for fiscal years beginning after December 15, 2026, and interim periods beginning after December 15, 2027. The Company is evaluating the impact of this ASU on its Condensed Consolidated Financial Statements.

In September 2025, the FASB issued ASU No. 2025-06, "Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40)" ("ASU 2025-06"), which updates guidance regarding the requirements to begin capitalizing internal-use software. ASU 2025-06 is effective for annual reporting periods beginning after December 15, 2027, and interim reporting periods within those annual reporting periods. The Company is evaluating the impact of this ASU on its Condensed Consolidated Financial Statements.

In December 2025, the FASB issued ASU No. 2025‑10, “Government Grants (Topic 832): Accounting for Government Grants Received by Business Entities” (“ASU 2025‑10”), which establishes authoritative guidance on the accounting for government grants received by business entities, including guidance for a grant related to an asset and a grant related to income. The new standard allows for a number of accounting policy elections to be made upon adoption and be applied to the subsequent grants received on a prospective basis. ASU 2025‑10 is effective for annual reporting periods beginning after December 15, 2028, and interim periods within those annual reporting periods. The Company is currently evaluating the impact of this ASU on its Condensed Consolidated Financial Statements.

In December 2025, the FASB issued ASU No. 2025‑11, “Interim Reporting (Topic 270): Narrow‑Scope Improvements” (“ASU 2025‑11”), which improves the navigability of the required interim disclosures and clarifies when that guidance is applicable. The ASU is effective for interim reporting periods within annual reporting periods beginning after December 15, 2027. The amendments can be applied either (1) prospectively or (2) retrospectively to any or all prior periods presented in the financial statements. The Company is currently evaluating the impact of the adoption of this ASU on its Condensed Consolidated Financial Statements.

In December 2025, the FASB issued ASU No. 2025‑12, “Codification Improvements” (“ASU 2025‑12”), as part of its ongoing project to enhance the clarity and usability of the FASB Codification. The amendments address a broad range of topics and include technical corrections, clarifications, updates for unintended application issues, and other minor improvements. ASU 2025‑12 is effective for annual reporting periods beginning after December 15, 2026, and interim periods within those annual reporting periods. The Company is currently evaluating the impact of this ASU on its Condensed Consolidated Financial Statements.