2.2.0.25falsefalse4040 - Disclosure - Inventories (Details)truefalseIn Thousandsfalse1falsefalseUSDfalsefalse3/31/2011 USD ($) $AS_OF_Mar31_2011http://www.sec.gov/CIK0001333141instant2011-03-31T00:00:000001-01-01T00:00:00SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$2falsefalseUSDfalsefalse12/31/2010 USD ($) $AS_OF_Dec31_2010http://www.sec.gov/CIK0001333141instant2010-12-31T00:00:000001-01-01T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$2true0fms_InventoriesDetailsAbstractfmsfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseInventories (Details) [Abstract]3false0us-gaap_InventoryRawMaterialsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse157442000157442falsetruefalsefalsefalse2truefalsefalse158163000158163falsetruefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryCarrying amount as of the balance sheet date of unprocessed items to be consumed in the manufacturing or production process. 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Excludes noncurrent inventory balances (expected to remain on hand past one year or one operating cycle, if longer).No authoritative reference available.truefalseInventories10true0us-gaap_RecordedUnconditionalPurchaseObligationLineItemsus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringLine items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.falsefalseRecorded Unconditional Purchase Obligation [Line Items]11false0us-gaap_RecordedUnconditionalPurchaseObligationus-gaaptruecreditinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse6504100065041falsetruefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe carrying amount of the long-term purchase obligation as of the balance sheet date, which equals the sum of all payments due.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 47 -Paragraph 10 -Subparagraph b Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 47 -Paragraph 6 falsefalseRecorded Unconditional Purchase Obligation28Inventories (Details) (USD $)ThousandsUnKnownUnKnownUnKnownfalsetrue