2.4.0.82201201 - Disclosure - Basis of Presentation and Accounting Policy Information (Policies)truefalsefalse1false falsefalseD2014Q1YTDhttp://www.sec.gov/CIK0001489096duration2013-04-01T00:00:002013-06-30T00:00:001true 1us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Organization, Consolidation and Presentation of Financial Statements [Abstract]2false 2us-gaap_UseOfEstimatesus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:12px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Use of Estimates</font></div><div style="line-height:120%;padding-top:12px;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> Generally accepted accounting principles ("GAAP") requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reported period. While our management has based their assumptions and estimates on the facts and circumstances existing at </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">June&#160;30, 2013</font><font style="font-family:inherit;font-size:10pt;">, actual results could differ from those estimates and affect the reported amounts of assets and liabilities, disclosures of contingent assets and liabilities and the corresponding revenues and expenses as of the date of the financial statements.&#160; The operating results for the </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">three months ended June 30, 2013</font><font style="font-family:inherit;font-size:10pt;"> are not necessarily indicative of the results that may be achieved for the fiscal year ending </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">March&#160;31, 2014</font><font style="font-family:inherit;font-size:10pt;">.&#160;</font></div></div>falsefalsefalsenonnum:textBlockItemTypenaDisclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6143-108592 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6132-108592 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6061-108592 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 94-6 -Paragraph 11, 14 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false0Use of Estimates3false 2us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:12px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Recent Accounting Pronouncements</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></div>falsefalsefalsenonnum:textBlockItemTypenaDisclosure of the adoption of new accounting pronouncements that may impact the entity's financial reporting.No definition available.false0Recent Accounting PronouncementsfalseBasis of Presentation and Accounting Policy Information (Policies)UnKnownUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.thermon.com/role/BasisOfPresentationAndAccountingPolicyInformationPolicies13