2.4.0.8090400 - Disclosure - Inventories (Details)truefalseIn Thousands, unless otherwise specifiedfalse1false USDfalsefalse$c20130630http://www.sec.gov/CIK0001059562instant2013-06-30T00:00:000001-01-01T00:00:00U002Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$2false USDfalsefalse$c20121231http://www.sec.gov/CIK0001059562instant2012-12-31T00:00:000001-01-01T00:00:00U002Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$1true 2us-gaap_InventoryNetAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Inventories [Abstract]2false 3lmia_RawMaterialsInventorylmia_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse1747800017478USD$falsetruefalse2truefalsefalse1494600014946USD$falsetruefalsexbrli:monetaryItemTypemonetaryGross amount of unprocessed items to be consumed in the manufacturing or production process.No definition available.false2Raw materials3false 3lmia_WorkInProgressInventorylmia_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse2168300021683falsefalsefalse2truefalsefalse2001200020012falsefalsefalsexbrli:monetaryItemTypemonetaryGross amount of merchandise or goods which are partially completed, are generally comprised of raw materials, detail components in the event of assemblies, processing charges and labor and factory overhead costs, and which require further materials, labor and overhead to be converted into finished goods.No definition available.false2Work in progress4false 3lmia_ManufacturedAndPurchasedComponentslmia_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse2213600022136falsefalsefalse2truefalsefalse1870200018702falsefalsefalsexbrli:monetaryItemTypemonetaryGross amount of components used by the entity which are manufactured and bought from another entity.No definition available.false2Manufactured and purchased components5false 3lmia_FinishedGoodsInventorylmia_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse3210200032102falsefalsefalse2truefalsefalse3098800030988falsefalsefalsexbrli:monetaryItemTypemonetaryAmount before valuation reserves for obsolescence of merchandise or goods held by the entity that are readily available for sale.No definition available.false2Finished goods6false 3lmia_ProductInventorylmia_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalsetotalLabel1truefalsefalse9339900093399falsefalsefalse2truefalsefalse8464800084648falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of raw materials, work in progress, manufactured and purchased components and finished goods.No definition available.true2Product inventory7false 3us-gaap_InventoryForLongTermContractsOrProgramsus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalselabel1truefalsefalse1150100011501falsefalsefalse2truefalsefalse53910005391falsefalsefalsexbrli:monetaryItemTypemonetaryAmount before progress payments and reserves of inventories associated with long-term contracts or programs.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 6 -Subparagraph a, d -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.6(a),(d)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 false2Capitalized contract costs8false 3us-gaap_InventoryNetus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalsetotalLabel1truefalsefalse104900000104900USD$falsetruefalse2truefalsefalse9003900090039USD$falsetruefalsexbrli:monetaryItemTypemonetaryCarrying amount (lower of cost or market) as of the balance sheet date of inventories less all valuation and other allowances. Excludes noncurrent inventory balances (expected to remain on hand past one year or one operating cycle, if longer).Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.6(a)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -SubTopic 10 -Section 35 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6386567&loc=d3e3927-108312 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6361293&loc=d3e6676-107765 true2Total inventoriesfalseInventories (Details) (USD $)ThousandsUnKnownUnKnownUnKnowntruefalsefalseSheethttp://lmiaerospace.com/role/InventoriesDetails28