2.2.0.25falsefalse009110 - Disclosure - Legal Proceedings (Details)truefalseIn Thousands, unless otherwise specifiedfalse1falsefalseUSDfalsefalse4/1/2010 - 12/31/2010 USD ($) USD ($) / shares $c00035http://www.sec.gov/CIK0000038074duration2010-04-01T00:00:002010-12-31T00:00:00u000Standardhttp://www.xbrl.org/2003/iso4217USDiso42170u003Standardhttp://www.xbrl.org/2003/instancesharesxbrli0u001Standardhttp://www.xbrl.org/2003/instancepurexbrli0u002Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2falsefalsefalsefalse8/11/2010 c00058http://www.sec.gov/CIK0000038074instant2010-08-11T00:00:000001-01-01T00:00:002true0frx_ScheduleToFinancialStatementsAbstractfrxfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseSchedule to Financial Statements [Abstract]3false0frx_LossContingencyNumberOfQuiTamLawsuitsfrxfalsenainstantNumber of previously disclosed qui tam lawsuits the company has settled with the USAO and the DOJ.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse22falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:integerItemTypeintegerNumber of previously disclosed qui tam lawsuits the company has settled with the USAO and the DOJ.No authoritative reference available.falsefalseNumber of qui tam lawsuits included in the settlement with the USAO and the DOJ4false0us-gaap_LossContingencyEstimateOfPossibleLossus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse313000000313000falsetruefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryReflects the estimated amount of loss from the specified contingency as of the balance sheet date.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 5 -Paragraph 9, 10, 11, 12 falsefalseTotal Reserve related to DOJ and USAO investigations plus accrued interest5false0frx_LossContingencyAccrualCarryingValuefrxfalsecreditinstantThe carrying amount as of the balance sheet date of a specific loss contingency reserve.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse162000000162000falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe carrying amount as of the balance sheet date of a specific loss contingency reserve.No authoritative reference available.falsefalseReserve balance6false0frx_RestrictedCashAndCashEquivalentsSettlementfrxfalsedebitinstantThe carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage pursuant to the...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse6292300062923falsetruefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage pursuant to the settlement agreement with the USAO and the DOJ.No authoritative reference available.falsefalseRestricted cash related to the USAO/DOJ settlement7false0frx_LossContingencySettlementGenericVersionLaunchfrxfalsenadurationTime period, prior to the expiration of a patent, where a company could launch a generic version of another company's...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00three calendar monthsthree calendar monthsfalsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringTime period, prior to the expiration of a patent, where a company could launch a generic version of another company's product.No authoritative reference available.falsefalseNumber of months prior to the expiration of a patent when Mylan could launch a generic version of Namenda8false0frx_ProductLiabilityContingencyActiveLawsuitsfrxfalsenadurationThe number of active product liability lawsuits naming the company.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse8080falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:integerItemTypeintegerThe number of active product liability lawsuits naming the company.No authoritative reference available.falsefalseActive product liability lawsuits naming the company9false0frx_ProductLiabilityContingencyActiveLawsuitsViolentEventsfrxfalsenadurationThe portion of active product liability lawsuits naming the company that allege a violent event occurred due to product...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse5050falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:integerItemTypeintegerThe portion of active product liability lawsuits naming the company that allege a violent event occurred due to product usage.No authoritative reference available.falsefalseApproximate number of active product liability lawsuits alleging a violent event occurred after product usage10false0frx_ProductLiabilityContingencySettledLawsuitsViolentEventsfrxfalsenadurationNumber of product liability lawsuits with an agreement in principle.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse2020falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:integerItemTypeintegerNumber of product liability lawsuits with an agreement in principle.No authoritative reference available.falsefalseNumber of product liability lawsuits, alleged to have caused a violent act, with an agreement in principle11false0frx_LossContingencyPastUnitedStatesEmploymentTermfrxfalsenainstantPeriod of time in which current and former sales representatives employed by the company throughout the United States may be...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00the past three yearsthe past three yearsfalsefalsefalsefalsefalseOtherxbrli:stringItemTypestringPeriod of time in which current and former sales representatives employed by the company throughout the United States may be included in the action.No authoritative reference available.falsefalsePeriod of employment for all current and former company sales representatives (throughout the United States) included in the action12false0frx_LossContingencyPastNewYorkEmploymentTermfrxfalsenainstantPeriod of time in which current and former sales representatives employed by the company in the State of New York may be...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00the past six yearsthe past six yearsfalsefalsefalsefalsefalseOtherxbrli:stringItemTypestringPeriod of time in which current and former sales representatives employed by the company in the State of New York may be included in the action.No authoritative reference available.falsefalsePeriod of employment for all current and former company sales representatives (in the State of New York) included in the action211Legal Proceedings (Details) (USD $)ThousandsUnKnownUnKnownUnKnowntruetrue