2.2.0.25falsefalse0614 - Disclosure - Contingencies (Details)truefalseIn Millions, unless otherwise specifiedfalse1falsefalseUSDfalsefalse1/1/2011 - 3/31/2011 USD ($) USD ($) / shares $Jan-01-2011_Mar-31-2011http://www.sec.gov/CIK0001037868duration2011-01-01T00:00:002011-03-31T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDEPSDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0PureStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDUSD$2falsefalseUSDfalsefalse12/31/2010 USD ($) $BalanceAsOf_31Dec2010http://www.sec.gov/CIK0001037868instant2010-12-31T00:00:000001-01-01T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$3true0ame_ContingenciesTextualsAbstractamefalsenadurationContingencies.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringContingencies.falsefalseContingencies (Textuals)4false0ame_NumberOfNonOwnedSitesCompanyIsNamedPotentiallyResponsiblePartyamefalsenadurationNumber of non-owned sites the Company is named a Potentially Responsible Party.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse1616falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:integerItemTypeintegerNumber of non-owned sites the Company is named a Potentially Responsible Party.No authoritative reference available.falsefalseNumber of non-owned sites the Company is named a Potentially Responsible Party5false0ame_NumberOfNonOwnedSitesCompanyIsIdentifiedAsDeminimisPartyamefalsenadurationNumber of non-owned sites the Company is identified as a deminimis party.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse1414falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:integerItemTypeintegerNumber of non-owned sites the Company is identified as a deminimis party.No authoritative reference available.falsefalseNumber of non-owned sites the Company is identified as a de minimis party6false0ame_NumberOfNonOwnedSitesCompanyHasReachedTentativeSettlementAgreementamefalsenadurationNumber of non-owned sites the Company has reached a tentative settlement agreement.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse1010falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:integerItemTypeintegerNumber of non-owned sites the Company has reached a tentative settlement agreement.No authoritative reference available.falsefalseNumber of non-owned sites the Company has reached a tentative settlement agreement7false0ame_NumberOfNonOwnedSitesCompanyIsStillWorkingToEstablishSettlementAmountamefalsenadurationNumber of non-owned sites the Company is still working to establish a settlement amount.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse44falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:integerItemTypeintegerNumber of non-owned sites the Company is still working to establish a settlement amount.No authoritative reference available.falsefalseNumber of non-owned sites the Company is still working to establish a settlement amount8false0ame_NumberOfNonOwnedSitesWhereReservesHaveBeenEstablishedAndAreSufficientToSatisfyCompanysExpectedObligationamefalsenadurationNumber of non-owned sites where reserves have been established and are sufficient to satisfy the Companys expected...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse22falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:integerItemTypeintegerNumber of non-owned sites where reserves have been established and are sufficient to satisfy the Companys expected obligation.No authoritative reference available.falsefalseNumber of non-owned sites where reserves have been established and are sufficient to satisfy the Company's expected obligation9false0us-gaap_AccrualForEnvironmentalLossContingenciesus-gaaptruecreditinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse3120000031.2falsetruefalsefalsefalse2truefalsefalse3130000031.3falsetruefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryTotal costs accrued as of the balance sheet date for environmental loss contingencies.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 96-1 -Paragraph 161 -Subparagraph a Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 5 -Paragraph 9 falsefalseTotal environmental reserves10false0us-gaap_AccrualForEnvironmentalLossContingenciesIncreaseDecreaseForAcquisitionsAndDivestituresus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse10000001.0falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe increase (decrease) in the accrual for environmental loss contingencies in the period arising from business acquisitions or divestitures.No authoritative reference available.falsefalseReserves related to a business acquisition11false0us-gaap_AccrualForEnvironmentalLossContingenciesPaymentsus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse11000001.1falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe aggregate amount disbursed during the reporting period to settle environmental loss contingencies.No authoritative reference available.falsefalseTotal expenses related to environmental matters12false0ame_ReservesRelatedToOwnedSiteAcquiredamefalsecreditinstantReserves related to owned site acquired.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse1950000019.5falsefalsefalsefalsefalse2truefalsefalse1890000018.9falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryReserves related to owned site acquired.No authoritative reference available.falsefalseReserves related to an owned site acquired13false0us-gaap_RecordedThirdPartyEnvironmentalRecoveriesReceivableus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse1480000014.8falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryCarrying amount as of the balance sheet date of known and reasonably estimable amounts of recoveries from third-parties pertaining to an entity's environmental remediation obligations. An entity's balance sheet may include several assets that relate to an environmental remediation obligation. Among them are the following: a. Receivables from other potentially responsible parties that are not providing initial funding; b. anticipated recoveries from insurers; and c. anticipated recoveries from prior owners as a result of indemnification agreements.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 96-1 -Paragraph 161 falsefalseReceivables related to HCC for probable recoveries from third-party funds14false0us-gaap_SiteContingencyRecoveryFromThirdPartyOfEnvironmentalRemediationCostus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse1900000019.0falsetruefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAmount of the estimated recovery from third parties recorded in the period for an individual site that reduces environmental remediation expense.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 96-1 -Paragraph 163 -Subparagraph e falsefalseAmount for which the Company is indemnified by HCC's former owners212Contingencies (Details) (USD $)HundredThousandsUnKnownUnKnownUnKnowntruetrue