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General (Policies)	3 Months Ended
	Jun. 30, 2024
General [Abstract]
Basis of Presentation	The accompanying unaudited condensed consolidated financial statements of Modine Manufacturing Company (“Modine” or the “Company”) were prepared in conformity with accounting principles generally accepted in the United States (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X.  Accordingly, they do not include all of the information and footnotes necessary for a comprehensive presentation of financial position, results of operations and cash flows required by GAAP for complete financial statements.  The financial statements include all normal recurring adjustments that are, in the opinion of management, necessary for a fair statement of results for the interim periods.  Results for the first three months of fiscal 2025 are not necessarily indicative of the results to be expected for the full year.  These financial statements should be read in conjunction with the consolidated financial statements and related notes in Modine’s Annual Report on Form 10-K for the year ended March 31, 2024.
New Accounting Guidance	New accounting guidance Segment reporting disclosures In November 2023, the Financial Accounting Standards Board issued new disclosure guidance for reportable segments.  The new guidance will require disclosure of significant segment expenses, which are expenses that are (i) significant to the segment, (ii) regularly provided to the chief operating decision maker (“CODM”) and (iii) included in the reported measure of segment profit or loss. In addition, the new guidance will require companies to disclose the title and position of their CODM and expand interim disclosures to include the majority of the annual segment disclosures.  The definition of and method for determining reportable segments is unchanged.  The new disclosure requirements will become effective for the Company’s fiscal 2025 annual financial statements. The Company is currently evaluating the new disclosures, but does not expect the guidance will have a material impact on its consolidated financial statements.

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