2.2.0.25truefalse00060 - Statement - Consolidated Statements of Shareholders' Equitytruefalsefalse1falsefalseUSDtruefalse{us-gaap_StatementEquityComponentsAxis} : Preferred Stock, No par value [Member] 1/1/2011 - 3/31/2011 USD ($) $FROM_Jan01_2011_TO_Mar31_2011_us-gaap_StatementEquityComponentsAxis_PreferredStockMemberhttp://www.sec.gov/CIK0001333141na0001-01-01T00:00:000001-01-01T00:00:00falsefalseus-gaap_PreferredStockMemberus-gaap_StatementEquityComponentsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_PreferredStockMemberus-gaap_StatementEquityComponentsAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2falsefalseUSDtruefalse{us-gaap_StatementEquityComponentsAxis} : Common Stock, No par value [Member] 1/1/2011 - 3/31/2011 USD ($) $FROM_Jan01_2011_TO_Mar31_2011_us-gaap_StatementEquityComponentsAxis_CommonStockMemberhttp://www.sec.gov/CIK0001333141na0001-01-01T00:00:000001-01-01T00:00:00falsefalseus-gaap_CommonStockMemberus-gaap_StatementEquityComponentsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CommonStockMemberus-gaap_StatementEquityComponentsAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDUSD$3falsefalseUSDtruefalse{us-gaap_StatementEquityComponentsAxis} : Additional paid in capital [Member] 1/1/2011 - 3/31/2011 USD ($) $FROM_Jan01_2011_TO_Mar31_2011_us-gaap_StatementEquityComponentsAxis_AdditionalPaidInCapitalMemberhttp://www.sec.gov/CIK0001333141na0001-01-01T00:00:000001-01-01T00:00:00falsefalseus-gaap_AdditionalPaidInCapitalMemberus-gaap_StatementEquityComponentsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_AdditionalPaidInCapitalMemberus-gaap_StatementEquityComponentsAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$4falsefalseUSDtruefalse{us-gaap_StatementEquityComponentsAxis} : Retained earnings [Member] 1/1/2011 - 3/31/2011 USD ($) $FROM_Jan01_2011_TO_Mar31_2011_us-gaap_StatementEquityComponentsAxis_RetainedEarningsMemberhttp://www.sec.gov/CIK0001333141na0001-01-01T00:00:000001-01-01T00:00:00falsefalseus-gaap_RetainedEarningsMemberus-gaap_StatementEquityComponentsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_RetainedEarningsMemberus-gaap_StatementEquityComponentsAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$5falsefalseUSDtruefalse{us-gaap_StatementEquityComponentsAxis} : Accumulated other comprehensive income (loss) [Member] 1/1/2011 - 3/31/2011 USD ($) $FROM_Jan01_2011_TO_Mar31_2011_us-gaap_StatementEquityComponentsAxis_AccumulatedOtherComprehensiveIncomeMemberhttp://www.sec.gov/CIK0001333141na0001-01-01T00:00:000001-01-01T00:00:00falsefalseus-gaap_AccumulatedOtherComprehensiveIncomeMemberus-gaap_StatementEquityComponentsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_AccumulatedOtherComprehensiveIncomeMemberus-gaap_StatementEquityComponentsAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$6falsefalseUSDtruefalse{us-gaap_StatementEquityComponentsAxis} : Total FMC-AG and Co. KGaA [Member] 1/1/2011 - 3/31/2011 USD ($) $FROM_Jan01_2011_TO_Mar31_2011_us-gaap_StatementEquityComponentsAxis_ParentMemberhttp://www.sec.gov/CIK0001333141na0001-01-01T00:00:000001-01-01T00:00:00falsefalseus-gaap_ParentMemberus-gaap_StatementEquityComponentsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_ParentMemberus-gaap_StatementEquityComponentsAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$7falsefalseUSDtruefalse{us-gaap_StatementEquityComponentsAxis} : Noncontrolling interests not subject to put provisions [Member] 1/1/2011 - 3/31/2011 USD ($) $FROM_Jan01_2011_TO_Mar31_2011_us-gaap_StatementEquityComponentsAxis_NoncontrollingInterestMemberhttp://www.sec.gov/CIK0001333141na0001-01-01T00:00:000001-01-01T00:00:00falsefalseus-gaap_NoncontrollingInterestMemberus-gaap_StatementEquityComponentsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_NoncontrollingInterestMemberus-gaap_StatementEquityComponentsAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$8falsefalseUSDfalsefalse1/1/2011 - 3/31/2011 USD ($) $FROM_Jan01_2011_TO_Mar31_2011http://www.sec.gov/CIK0001333141na0001-01-01T00:00:000001-01-01T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDUSD$1false0us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestus-gaaptruecreditinstantNo definition available.falsefalsefalsetruefalsefalsefalsetruefalsefalseperiodstartlabelinstant2010-01-01T00:00:000001-01-01T00:00:001truefalsefalse43430004343000falsetruefalsetruefalse2truefalsefalse365672000365672000falsetruefalsetruefalse3truefalsefalse32434660003243466000falsetruefalsetruefalse4truefalsefalse31115300003111530000falsetruefalsetruefalse5truefalsefalse-49724000-49724000falsetruefalsetruefalse6truefalsefalse66752870006675287000falsetruefalsetruefalse7truefalsefalse123103000123103000falsetruefalsetruefalse8truefalsefalse67983900006798390000falsetruefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryTotal of Stockholders' Equity (deficit) items, net of receivables from officers, directors owners, and affiliates of the entity including portions attributable to both the parent and noncontrolling interests (previously referred to as minority interest), if any. The entity including portions attributable to the parent and noncontrolling interests is sometimes referred to as the economic entity. This excludes temporary equity and is sometimes called permanent equity.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 25 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 26 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A3 -Appendix A falsefalseShareholders equity at Dec. 31, 20092false0us-gaap_SharesIssuedus-gaaptruenainstantNo definition available.falsefalsefalsetruefalsefalsefalsetruefalsefalseperiodstartlabelinstant2010-01-01T00:00:000001-01-01T00:00:001truefalsefalse38843283884328falsefalsefalsetruefalse2truefalsefalse295746635295746635falsefalsefalsetruefalse3falsefalsefalse00falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsetruefalse5falsefalsefalse00falsefalsefalsetruefalse6falsefalsefalse00falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsefalsefalseSharesxbrli:sharesItemTypesharesNumber of shares of stock issued as of the balance sheet date, including shares that had been issued and were previously outstanding but which are now held in the treasury.No authoritative reference available.falsefalseShares issued at Dec. 31, 20093false0us-gaap_StockIssuedDuringPeriodValueStockOptionsExercisedus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse9700097000falsefalsefalsetruefalse2truefalsefalse33300003330000falsefalsefalsetruefalse3truefalsefalse9881900098819000falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsetruefalse5falsefalsefalse00falsefalsefalsetruefalse6truefalsefalse102246000102246000falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8truefalsefalse102246000102246000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryValue stock issued during the period as a result of the exercise of stock options.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30, 31 -Article 5 falsefalseProceeds from exercise of options and related tax effects4false0us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercisedus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse7284072840falsefalsefalsetruefalse2truefalsefalse25323662532366falsefalsefalsetruefalse3falsefalsefalse00falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsetruefalse5falsefalsefalse00falsefalsefalsetruefalse6falsefalsefalse00falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsefalsefalseSharesxbrli:sharesItemTypesharesNumber of shares issued during the period as a result of the exercise of stock options.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 falsefalseShares from exercise of options and related tax effects5false0us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValueus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsetruefalse2falsefalsefalse00falsefalsefalsetruefalse3truefalsefalse2798100027981000falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsetruefalse5falsefalsefalse00falsefalsefalsetruefalse6truefalsefalse2798100027981000falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8truefalsefalse2798100027981000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThis element represents the amount of recognized share-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized).Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 39 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64 -Subparagraph b Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A91 falsefalseCompensation expense related to stock options6false0us-gaap_Dividendsus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsetruefalse2falsefalsefalse00falsefalsefalsetruefalse3falsefalsefalse00falsefalsefalsetruefalse4truefalsefalse231967000231967000falsefalsefalsetruefalse5falsefalsefalse00falsefalsefalsetruefalse6truefalsefalse231967000231967000falsefalsefalsetruefalse7truefalsefalse5861700058617000falsefalsefalsetruefalse8truefalsefalse290584000290584000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAggregate cash, stock, and paid-in-kind dividends declared for all securities (common shares, preferred shares) during the period.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 01-6 -Paragraph 14 -Subparagraph l falsefalseDividends paid7false0us-gaap_MinorityInterestIncreaseFromStockIssuanceus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsetruefalse2falsefalsefalse00falsefalsefalsetruefalse3truefalsefalse-6263000-6263000falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsetruefalse5falsefalsefalse00falsefalsefalsetruefalse6truefalsefalse-6263000-6263000falsefalsefalsetruefalse7truefalsefalse1729500017295000falsefalsefalsetruefalse8truefalsefalse1103200011032000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryIncrease in noncontrolling interest balance from issuance of additional shares to noncontrolling interest holders or the sale of all or a portion of the parent's equity interest.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(2) falsefalsePurchase (sale) of noncontrolling interests8false0us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHoldersus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsetruefalse2falsefalsefalse00falsefalsefalsetruefalse3falsefalsefalse00falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsetruefalse5falsefalsefalse00falsefalsefalsetruefalse6falsefalsefalse00falsefalsefalsetruefalse7truefalsefalse-4392000-4392000falsefalsefalsetruefalse8truefalsefalse-4392000-4392000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryDecrease in noncontrolling interest balance from payment of dividends or other distributions to noncontrolling interest holders.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(2) falsefalseCash contributions from noncontrolling interests9false0fms_ChangesInFairValueOfNoncontrollingInterestsfmsfalsecreditdurationChanges in the fair value of noncontrolling interests.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsetruefalse2falsefalsefalse00falsefalsefalsetruefalse3truefalsefalse-24222000-24222000falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsetruefalse5falsefalsefalse00falsefalsefalsetruefalse6truefalsefalse-24222000-24222000falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8truefalsefalse-24222000-24222000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryChanges in the fair value of noncontrolling interests.No authoritative reference available.falsefalseChanges in fair value of noncontrolling interests10true0us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterestAbstractus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsetruefalse2falsefalsefalse00falsefalsefalsetruefalse3falsefalsefalse00falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsetruefalse5falsefalsefalse00falsefalsefalsetruefalse6falsefalsefalse00falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseComprehensive income (loss)11false0fms_ProfitLossLessAmountsAttributableToNoncontrollingInterestsSubjectToPutProvisionsfmsfalsecreditdurationThe consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsetruefalse2falsefalsefalse00falsefalsefalsetruefalse3falsefalsefalse00falsefalsefalsetruefalse4truefalsefalse978517000978517000falsefalsefalsetruefalse5falsefalsefalse00falsefalsefalsetruefalse6truefalsefalse978517000978517000falsefalsefalsetruefalse7truefalsefalse5804000058040000falsefalsefalsetruefalse8truefalsefalse10365570001036557000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest, but less amounts attributable to noncontrolling interests subject to put provisions.No authoritative reference available.falsefalseNet Income12false0fms_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseLessAmountsAttributableToNoncontrollingInterestsSubjectToPutProvisionsfmsfalsecreditdurationThis element represents Other Comprehensive Income (Loss), Net of Tax, for the period. Includes deferred gains (losses) on...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsetruefalse2falsefalsefalse00falsefalsefalsetruefalse3falsefalsefalse00falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsetruefalse5truefalsefalse-144321000-144321000falsefalsefalsetruefalse6truefalsefalse-144321000-144321000falsefalsefalsetruefalse7truefalsefalse24400002440000falsefalsefalsetruefalse8truefalsefalse-141881000-141881000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThis element represents Other Comprehensive Income (Loss), Net of Tax, for the period. Includes deferred gains (losses) on qualifying hedges, unrealized holding gains (losses) on available-for-sale securities, minimum pension liability, and cumulative translation adjustment, less amounts attributable to noncontrolling interests subject to put provisions.No authoritative reference available.falsefalseOther comprehensive income (loss) - net13false0fms_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterestLessAmountsAttributableToNoncontrollingInterestsSubjectToPutProvisionsfmsfalsecreditdurationThe change in equity [net assets] of a business enterprise during a period from transactions and other events and...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsetruefalse2falsefalsefalse00falsefalsefalsetruefalse3falsefalsefalse00falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsetruefalse5falsefalsefalse00falsefalsefalsetruefalse6truefalsefalse834196000834196000falsefalsefalsetruefalse7truefalsefalse6048000060480000falsefalsefalsetruefalse8truefalsefalse894676000894676000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the economic entity, including both controlling (parent) and noncontrolling interests. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, including any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent. It does not include amounts related to noncontrolling interests subject to put provisions.No authoritative reference available.falsefalseTotal comprehensive income14false0us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestus-gaaptruecreditinstantNo definition available.falsefalsefalsetruefalsefalsefalsefalsetruefalseperiodendlabelinstant2010-12-31T00:00:000001-01-01T00:00:001truefalsefalse44400004440000falsefalsefalsetruefalse2truefalsefalse369002000369002000falsefalsefalsetruefalse3truefalsefalse33397810003339781000falsefalsefalsetruefalse4truefalsefalse38580800003858080000falsefalsefalsetruefalse5truefalsefalse-194045000-194045000falsefalsefalsetruefalse6truefalsefalse73772580007377258000falsefalsefalsetruefalse7truefalsefalse146653000146653000falsefalsefalsetruefalse8truefalsefalse75239110007523911000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryTotal of Stockholders' Equity (deficit) items, net of receivables from officers, directors owners, and affiliates of the entity including portions attributable to both the parent and noncontrolling interests (previously referred to as minority interest), if any. The entity including portions attributable to the parent and noncontrolling interests is sometimes referred to as the economic entity. This excludes temporary equity and is sometimes called permanent equity.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 25 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 26 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A3 -Appendix A falsefalseShareholders equity at Dec. 31, 201015false0us-gaap_SharesIssuedus-gaaptruenainstantNo definition available.falsefalsefalsetruefalsefalsefalsefalsetruefalseperiodendlabelinstant2010-12-31T00:00:000001-01-01T00:00:001truefalsefalse39571683957168falsefalsefalsetruefalse2truefalsefalse298279001298279001falsefalsefalsetruefalse3falsefalsefalse00falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsetruefalse5falsefalsefalse00falsefalsefalsetruefalse6falsefalsefalse00falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsefalsefalseSharesxbrli:sharesItemTypesharesNumber of shares of stock issued as of the balance sheet date, including shares that had been issued and were previously outstanding but which are now held in the treasury.No authoritative reference available.falsefalseShares issued at Dec. 31, 201016false0us-gaap_StockIssuedDuringPeriodValueStockOptionsExercisedus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse10001000falsefalsefalsetruefalse2truefalsefalse6200062000falsefalsefalsetruefalse3truefalsefalse16640001664000falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsetruefalse5falsefalsefalse00falsefalsefalsetruefalse6truefalsefalse17270001727000falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8truefalsefalse17270001727000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryValue stock issued during the period as a result of the exercise of stock options.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30, 31 -Article 5 falsefalseProceeds from exercise of options and related tax effects17false0us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercisedus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse751751falsefalsefalsetruefalse2truefalsefalse4515545155falsefalsefalsetruefalse3falsefalsefalse00falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsetruefalse5falsefalsefalse00falsefalsefalsetruefalse6falsefalsefalse00falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsefalsefalseSharesxbrli:sharesItemTypesharesNumber of shares issued during the period as a result of the exercise of stock options.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 falsefalseShares from exercise of options and related tax effects18false0us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValueus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsetruefalse2falsefalsefalse00falsefalsefalsetruefalse3truefalsefalse71320007132000falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsetruefalse5falsefalsefalse00falsefalsefalsetruefalse6truefalsefalse71320007132000falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8truefalsefalse71320007132000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThis element represents the amount of recognized share-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized).Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 39 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64 -Subparagraph b Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A91 falsefalseCompensation expense related to stock options19false0us-gaap_Dividendsus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsetruefalse2falsefalsefalse00falsefalsefalsetruefalse3falsefalsefalse00falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsetruefalse5falsefalsefalse00falsefalsefalsetruefalse6falsefalsefalse00falsefalsefalsetruefalse7truefalsefalse1070900010709000falsefalsefalsetruefalse8truefalsefalse1070900010709000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAggregate cash, stock, and paid-in-kind dividends declared for all securities (common shares, preferred shares) during the period.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 01-6 -Paragraph 14 -Subparagraph l falsefalseDividends paid20false0us-gaap_MinorityInterestIncreaseFromStockIssuanceus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsetruefalse2falsefalsefalse00falsefalsefalsetruefalse3truefalsefalse-327000-327000falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsetruefalse5falsefalsefalse00falsefalsefalsetruefalse6truefalsefalse-327000-327000falsefalsefalsetruefalse7truefalsefalse-1628000-1628000falsefalsefalsetruefalse8truefalsefalse-1955000-1955000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryIncrease in noncontrolling interest balance from issuance of additional shares to noncontrolling interest holders or the sale of all or a portion of the parent's equity interest.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(2) falsefalsePurchase (sale) of noncontrolling interests21false0us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHoldersus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsetruefalse2falsefalsefalse00falsefalsefalsetruefalse3falsefalsefalse00falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsetruefalse5falsefalsefalse00falsefalsefalsetruefalse6falsefalsefalse00falsefalsefalsetruefalse7truefalsefalse-603000-603000falsefalsefalsetruefalse8truefalsefalse-603000-603000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryDecrease in noncontrolling interest balance from payment of dividends or other distributions to noncontrolling interest holders.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(2) falsefalseCash contributions from noncontrolling interests22false0fms_ChangesInFairValueOfNoncontrollingInterestsfmsfalsecreditdurationChanges in the fair value of noncontrolling interests.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsetruefalse2falsefalsefalse00falsefalsefalsetruefalse3truefalsefalse-4377000-4377000falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsetruefalse5falsefalsefalse00falsefalsefalsetruefalse6truefalsefalse-4377000-4377000falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8truefalsefalse-4377000-4377000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryChanges in the fair value of noncontrolling interests.No authoritative reference available.falsefalseChanges in fair value of noncontrolling interests23true0us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterestAbstractus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsetruefalse2falsefalsefalse00falsefalsefalsetruefalse3falsefalsefalse00falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsetruefalse5falsefalsefalse00falsefalsefalsetruefalse6falsefalsefalse00falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseComprehensive income (loss)24false0fms_ProfitLossLessAmountsAttributableToNoncontrollingInterestsSubjectToPutProvisionsfmsfalsecreditdurationThe consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsetruefalse2falsefalsefalse00falsefalsefalsetruefalse3falsefalsefalse00falsefalsefalsetruefalse4truefalsefalse220701000220701000falsefalsefalsetruefalse5falsefalsefalse00falsefalsefalsetruefalse6truefalsefalse220701000220701000falsefalsefalsetruefalse7truefalsefalse1839400018394000falsefalsefalsetruefalse8truefalsefalse239095000239095000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest, but less amounts attributable to noncontrolling interests subject to put provisions.No authoritative reference available.falsefalseNet Income25false0fms_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseLessAmountsAttributableToNoncontrollingInterestsSubjectToPutProvisionsfmsfalsecreditdurationThis element represents Other Comprehensive Income (Loss), Net of Tax, for the period. Includes deferred gains (losses) on...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsetruefalse2falsefalsefalse00falsefalsefalsetruefalse3falsefalsefalse00falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsetruefalse5truefalsefalse120301000120301000falsefalsefalsetruefalse6truefalsefalse120301000120301000falsefalsefalsetruefalse7truefalsefalse-155000-155000falsefalsefalsetruefalse8truefalsefalse120146000120146000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThis element represents Other Comprehensive Income (Loss), Net of Tax, for the period. Includes deferred gains (losses) on qualifying hedges, unrealized holding gains (losses) on available-for-sale securities, minimum pension liability, and cumulative translation adjustment, less amounts attributable to noncontrolling interests subject to put provisions.No authoritative reference available.falsefalseOther comprehensive income (loss) - net26false0fms_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterestLessAmountsAttributableToNoncontrollingInterestsSubjectToPutProvisionsfmsfalsecreditdurationThe change in equity [net assets] of a business enterprise during a period from transactions and other events and...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsetruefalse2falsefalsefalse00falsefalsefalsetruefalse3falsefalsefalse00falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsetruefalse5falsefalsefalse00falsefalsefalsetruefalse6truefalsefalse341002000341002000falsefalsefalsetruefalse7truefalsefalse1823900018239000falsefalsefalsetruefalse8truefalsefalse359241000359241000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the economic entity, including both controlling (parent) and noncontrolling interests. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, including any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent. It does not include amounts related to noncontrolling interests subject to put provisions.No authoritative reference available.falsefalseTotal comprehensive income27false0us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestus-gaaptruecreditinstantNo definition available.falsefalsefalsetruefalsefalsefalsefalsetruefalseperiodendlabelinstant2011-03-31T00:00:000001-01-01T00:00:001truefalsefalse44410004441000falsetruefalsetruefalse2truefalsefalse369064000369064000falsetruefalsetruefalse3truefalsefalse33438730003343873000falsetruefalsetruefalse4truefalsefalse40787810004078781000falsetruefalsetruefalse5truefalsefalse-73744000-73744000falsetruefalsetruefalse6truefalsefalse77224150007722415000falsetruefalsetruefalse7truefalsefalse153158000153158000falsetruefalsetruefalse8truefalsefalse78755730007875573000falsetruefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryTotal of Stockholders' Equity (deficit) items, net of receivables from officers, directors owners, and affiliates of the entity including portions attributable to both the parent and noncontrolling interests (previously referred to as minority interest), if any. The entity including portions attributable to the parent and noncontrolling interests is sometimes referred to as the economic entity. This excludes temporary equity and is sometimes called permanent equity.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 25 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 26 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A3 -Appendix A falsefalseShareholders equity at Mar. 31, 201128false0us-gaap_SharesIssuedus-gaaptruenainstantNo definition available.falsefalsefalsetruefalsefalsefalsefalsetruefalseperiodendlabelinstant2011-03-31T00:00:000001-01-01T00:00:001truefalsefalse39579193957919falsefalsefalsetruefalse2truefalsefalse298324156298324156falsefalsefalsetruefalse3falsefalsefalse00falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsetruefalse5falsefalsefalse00falsefalsefalsetruefalse6falsefalsefalse00falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsefalsefalseSharesxbrli:sharesItemTypesharesNumber of shares of stock issued as of the balance sheet date, including shares that had been issued and were previously outstanding but which are now held in the treasury.No authoritative reference available.falsefalseShares issued at Mar. 31, 2011828Consolidated Statements of Shareholders' Equity (USD $)NoRoundingNoRoundingUnKnownUnKnownfalsetrue