2.4.0.82405403 - Disclosure - Goodwill and Other Intangible Assets Intangible Assets (Details)truefalseIn Thousands, unless otherwise specifiedfalse1false USDfalsefalse$I2014Q1http://www.sec.gov/CIK0001489096instant2013-06-30T00:00:000001-01-01T00:00:00usdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$2false USDfalsefalse$I2013Q4http://www.sec.gov/CIK0001489096instant2013-03-31T00:00:000001-01-01T00:00:00usdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$1true 3us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Acquired Finite-Lived Intangible Assets [Line Items]2false 4thr_IntangibleAssetsGrossthr_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse170698000170698USD$falsetruefalse2truefalsefalse172272000172272USD$falsetruefalsexbrli:monetaryItemTypemonetaryIntangible Assets, GrossNo definition available.false2Intangible Assets, Gross3false 4thr_IntangibleAssetsAccumulatedAmortizationthr_falsecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse-42697000-42697USD$falsefalsefalse2truefalsefalse-40356000-40356USD$falsefalsefalsexbrli:monetaryItemTypemonetaryIntangible Assets, Accumulated AmortizationNo definition available.false2Intangible Assets, Accumulated Amortization4false 4us-gaap_IntangibleAssetsNetExcludingGoodwillus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse128001000128001USD$falsefalsefalse2truefalsefalse131916000131916USD$falsefalsefalsexbrli:monetaryItemTypemonetarySum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 42, 45 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false2Intangible Assets, Net (Excluding Goodwill)5false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3false USDtruefalse$I2014Q1_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_us-gaap_DevelopedTechnologyRightsMemberhttp://www.sec.gov/CIK0001489096instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseDeveloped Technology Rights [Member]us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_DevelopedTechnologyRightsMemberus-gaap_FiniteLivedIntangibleAssetsByMajorClassAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Developed Technology Rights [Member]6true 3us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Acquired Finite-Lived Intangible Assets [Line Items]7false 4us-gaap_FiniteLivedIntangibleAssetsGrossus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse1083700010837USD$falsefalsefalse2truefalsefalse1092900010929USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false2Finite-Lived Intangible Assets, Gross8false 4us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortizationus-gaap_truecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse-1779000-1779USD$falsefalsefalse2truefalsefalse-1659000-1659USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAccumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false2Finite-Lived Intangible Assets, Accumulated Amortization9false 4us-gaap_FiniteLivedIntangibleAssetsNetus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse90580009058USD$falsefalsefalse2truefalsefalse92700009270USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false2Finite-Lived Intangible Assets, Net10false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse5false USDtruefalse$I2014Q1_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_us-gaap_CustomerRelationshipsMemberhttp://www.sec.gov/CIK0001489096instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseCustomer Relationships [Member]us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CustomerRelationshipsMemberus-gaap_FiniteLivedIntangibleAssetsByMajorClassAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Customer Relationships [Member]11true 3us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Acquired Finite-Lived Intangible Assets [Line Items]12false 4us-gaap_FiniteLivedIntangibleAssetsGrossus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse100419000100419USD$falsefalsefalse2truefalsefalse101355000101355USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false2Finite-Lived Intangible Assets, Gross13false 4us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortizationus-gaap_truecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse-30017000-30017USD$falsefalsefalse2truefalsefalse-27723000-27723USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAccumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false2Finite-Lived Intangible Assets, Accumulated Amortization14false 4us-gaap_FiniteLivedIntangibleAssetsNetus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse7040200070402USD$falsefalsefalse2truefalsefalse7363200073632USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false2Finite-Lived Intangible Assets, Net15false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse7false USDtruefalse$I2014Q1_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_thr_BacklogMemberhttp://www.sec.gov/CIK0001489096instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseBacklog [Member]us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxisxbrldihttp://xbrl.org/2006/xbrldithr_BacklogMemberus-gaap_FiniteLivedIntangibleAssetsByMajorClassAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Backlog [Member]16true 3us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Acquired Finite-Lived Intangible Assets [Line Items]17false 4us-gaap_FiniteLivedIntangibleAssetsGrossus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse1003000010030USD$falsefalsefalse2truefalsefalse1016700010167USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false2Finite-Lived Intangible Assets, Gross18false 4us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortizationus-gaap_truecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse-10030000-10030USD$falsefalsefalse2truefalsefalse-10167000-10167USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAccumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false2Finite-Lived Intangible Assets, Accumulated Amortization19false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse9false USDtruefalse$I2014Q1_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_us-gaap_OtherIntangibleAssetsMemberhttp://www.sec.gov/CIK0001489096instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseOther Intangible Assets [Member]us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_OtherIntangibleAssetsMemberus-gaap_FiniteLivedIntangibleAssetsByMajorClassAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Other Intangible Assets [Member]20true 3us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Acquired Finite-Lived Intangible Assets [Line Items]21false 4us-gaap_FiniteLivedIntangibleAssetsGrossus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse16290001629USD$falsefalsefalse2truefalsefalse16300001630USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false2Finite-Lived Intangible Assets, Gross22false 4us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortizationus-gaap_truecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse-871000-871USD$falsefalsefalse2truefalsefalse-807000-807USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAccumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false2Finite-Lived Intangible Assets, Accumulated Amortization23false 4us-gaap_FiniteLivedIntangibleAssetsNetus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse758000758USD$falsefalsefalse2truefalsefalse823000823USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false2Finite-Lived Intangible Assets, Net24false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse11false USDtruefalse$I2014Q1_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_us-gaap_TrademarksMemberhttp://www.sec.gov/CIK0001489096instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseTrademarks [Member]us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_TrademarksMemberus-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Trademarks [Member]25true 3us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Acquired Finite-Lived Intangible Assets [Line Items]26false 4us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwillus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse4728900047289USD$falsefalsefalse2truefalsefalse4769300047693USD$falsefalsefalsexbrli:monetaryItemTypemonetaryCarrying amount of assets (excluding financial assets) that lack physical substance, excluding goodwill, having a projected indefinite period of benefit.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false2Indefinite-Lived Intangible Assets (Excluding Goodwill)27false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse13false USDtruefalse$I2014Q1_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_us-gaap_CertificationMarksMemberhttp://www.sec.gov/CIK0001489096instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseCertification Marks [Member]us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CertificationMarksMemberus-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Certification Marks [Member]28true 3us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Acquired Finite-Lived Intangible Assets [Line Items]29false 4us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwillus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse494000494USD$falsetruefalse2truefalsefalse498000498USD$falsetruefalsexbrli:monetaryItemTypemonetaryCarrying amount of assets (excluding financial assets) that lack physical substance, excluding goodwill, having a projected indefinite period of benefit.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph b -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. false2Indefinite-Lived Intangible Assets (Excluding Goodwill)falseGoodwill and Other Intangible Assets Intangible Assets (Details) (USD $)ThousandsUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.thermon.com/role/GoodwillAndOtherIntangibleAssetsIntangibleAssetsDetails229