Contingencies and Litigation	6 Months Ended
Sep. 30, 2015
Contingencies and Litigation [Abstract]
Contingencies and Litigation	Note 15: Contingencies and Litigation Environmental: The United States Environmental Protection Agency has designated the Company as a potentially responsible party for remediation of three sites. These sites are: Auburn Incinerator, Inc./Lake Calumet Cluster (Illinois), Cam-Or (Indiana) and a scrap metal site known as Chemetco (Illinois). In addition, Modine is voluntarily participating in the care of an inactive landfill owned by the City of Trenton (Missouri). These sites are not Company-owned; however, they allegedly contain materials attributable to Modine from past operations. The percentage of material allegedly attributable to Modine is relatively low. Remediation of these sites is in various stages of administrative or judicial proceedings and includes recovery of past governmental costs and the costs of future investigations and remedial actions. The Company accrues for costs anticipated for the remedial settlement of the sites listed above if they are probable and can be reasonably determined. Costs anticipated for the remedial settlement of the sites listed above that are not probable or cannot be reasonably determined at this time have not been accrued; however, the Company does not believe any potential costs would be material to the Company’s financial position due to its relatively small portion of contributed materials. The Company has recorded environmental investigation and remediation accruals for subsurface contamination at its former manufacturing facility in the Netherlands and groundwater contamination at its manufacturing facility in its wholly-owned subsidiary in Brazil (“Modine Brazil”), along with other lesser environmental matters at certain facilities located in the United States. These accruals generally relate to facilities where past operations followed practices and procedures that were considered acceptable under then-existing regulations, or where the Company is a successor to the obligations of prior owners, and current laws and regulations require investigative and/or remedial work to ensure sufficient environmental compliance. The accruals for these environmental matters totaled $3.9 million and $3.8 million at September 30, 2015 and March 31, 2015, respectively. As additional information becomes available, the Company will re-assess any potential liability related to these matters and revise the estimated accrual, if necessary. Based on currently available information, the Company believes the ultimate outcome of these matters, individually and in the aggregate, will not have a material adverse effect on its financial position. However, these matters are subject to inherent uncertainties, and unfavorable outcomes could occur, including significant monetary damages. During fiscal 2011, one of the adjacent businesses to the Company’s facility in Brazil filed suit against Modine Brazil, seeking remediation and certain other damages as a result of contamination allegedly attributable to the Company’s operations. The Company is defending this suit and believes that the ultimate outcome of this matter will not be material. Brazil antitrust investigation: During the fourth quarter of fiscal 2015, Brazil’s Administrative Council for Economic Defense (CADE) provided formal notice to Modine Brazil of an administrative investigation regarding alleged violations of Brazil’s antitrust regulations by Modine Brazil and certain of its employees during a period of time at least seven years ago. As of September 30, 2015 and March 31, 2015, we accrued $2.5 million and $3.2 million (BRL 10.0 million at each date), respectively, representing the estimated amount that may be incurred in connection with the management and resolution of this matter. Due to the ongoing nature of this matter, the Company cannot provide assurance of its ultimate resolution at this time. Other litigation: In the normal course of business, the Company and its subsidiaries are named as defendants in various other lawsuits and enforcement proceedings by private parties, governmental agencies and/or others in which claims are asserted against Modine. In the opinion of management, the liabilities, if any, which may ultimately result from such lawsuits or proceedings are not expected to have a material adverse effect on the Company’s consolidated financial statements.

Note 15: Contingencies and Litigation

Environmental: The United States Environmental Protection Agency has designated the Company as a potentially responsible party for remediation of three sites. These sites are: Auburn Incinerator, Inc./Lake Calumet Cluster (Illinois), Cam-Or (Indiana) and a scrap metal site known as Chemetco (Illinois). In addition, Modine is voluntarily participating in the care of an inactive landfill owned by the City of Trenton (Missouri). These sites are not Company-owned; however, they allegedly contain materials attributable to Modine from past operations. The percentage of material allegedly attributable to Modine is relatively low. Remediation of these sites is in various stages of administrative or judicial proceedings and includes recovery of past governmental costs and the costs of future investigations and remedial actions. The Company accrues for costs anticipated for the remedial settlement of the sites listed above if they are probable and can be reasonably determined. Costs anticipated for the remedial settlement of the sites listed above that are not probable or cannot be reasonably determined at this time have not been accrued; however, the Company does not believe any potential costs would be material to the Company’s financial position due to its relatively small portion of contributed materials.

The Company has recorded environmental investigation and remediation accruals for subsurface contamination at its former manufacturing facility in the Netherlands and groundwater contamination at its manufacturing facility in its wholly-owned subsidiary in Brazil (“Modine Brazil”), along with other lesser environmental matters at certain facilities located in the United States. These accruals generally relate to facilities where past operations followed practices and procedures that were considered acceptable under then-existing regulations, or where the Company is a successor to the obligations of prior owners, and current laws and regulations require investigative and/or remedial work to ensure sufficient environmental compliance. The accruals for these environmental matters totaled $3.9 million and $3.8 million at September 30, 2015 and March 31, 2015, respectively. As additional information becomes available, the Company will re-assess any potential liability related to these matters and revise the estimated accrual, if necessary. Based on currently available information, the Company believes the ultimate outcome of these matters, individually and in the aggregate, will not have a material adverse effect on its financial position. However, these matters are subject to inherent uncertainties, and unfavorable outcomes could occur, including significant monetary damages. During fiscal 2011, one of the adjacent businesses to the Company’s facility in Brazil filed suit against Modine Brazil, seeking remediation and certain other damages as a result of contamination allegedly attributable to the Company’s operations. The Company is defending this suit and believes that the ultimate outcome of this matter will not be material.

Brazil antitrust investigation: During the fourth quarter of fiscal 2015, Brazil’s Administrative Council for Economic Defense (CADE) provided formal notice to Modine Brazil of an administrative investigation regarding alleged violations of Brazil’s antitrust regulations by Modine Brazil and certain of its employees during a period of time at least seven years ago. As of September 30, 2015 and March 31, 2015, we accrued $2.5 million and $3.2 million (BRL 10.0 million at each date), respectively, representing the estimated amount that may be incurred in connection with the management and resolution of this matter. Due to the ongoing nature of this matter, the Company cannot provide assurance of its ultimate resolution at this time.

Other litigation: In the normal course of business, the Company and its subsidiaries are named as defendants in various other lawsuits and enforcement proceedings by private parties, governmental agencies and/or others in which claims are asserted against Modine. In the opinion of management, the liabilities, if any, which may ultimately result from such lawsuits or proceedings are not expected to have a material adverse effect on the Company’s consolidated financial statements.