2.4.0.8147 - Disclosure - Investments in Policies Account (Detail)truefalsefalse1false USDfalsefalse$PAsOn05_31_2013http://www.sec.gov/CIK0000049534instant2013-05-31T00:00:000001-01-01T00:00:00pureStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$2false USDfalsefalse$PAsOn02_28_2013http://www.sec.gov/CIK0000049534instant2013-02-28T00:00:000001-01-01T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$1true 4us-gaap_LifeSettlementContractsInvestmentMethodNumberOfContractsFiscalYearMaturityAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Number of Interests in Life Settlement Contracts2false 5us-gaap_LifeSettlementContractsInvestmentMethodNumberOfContractsMaturingInNextTwelveMonthsus-gaap_truenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse11falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:integerItemTypeintegerNumber of life settlement contracts accounted for under the investment method maturing in the next fiscal year following the latest fiscal year.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Life Settlement Contract -URI http://asc.fasb.org/extlink&oid=6516907 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6385267&loc=d3e42674-111610 false00-1 (in years)3false 5us-gaap_LifeSettlementContractsInvestmentMethodNumberOfContractsMaturingInYearTwous-gaap_truenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:integerItemTypeintegerNumber of life settlement contracts accounted for under the investment method maturing in the second fiscal year following the latest fiscal year.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Life Settlement Contract -URI http://asc.fasb.org/extlink&oid=6516907 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6385267&loc=d3e42674-111610 false01-2 (in years)4false 5us-gaap_LifeSettlementContractsInvestmentMethodNumberOfContractsMaturingInYearThreeus-gaap_truenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse1414falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:integerItemTypeintegerNumber of life settlement contracts accounted for under the investment method maturing in the third fiscal year following the latest fiscal year.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Life Settlement Contract -URI http://asc.fasb.org/extlink&oid=6516907 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6385267&loc=d3e42674-111610 false02-3 (in years)5false 5us-gaap_LifeSettlementContractsInvestmentMethodNumberOfContractsMaturingInYearFourus-gaap_truenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse44falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:integerItemTypeintegerNumber of life settlement contracts accounted for under the investment method maturing in the fourth fiscal year following the latest fiscal year.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Life Settlement Contract -URI http://asc.fasb.org/extlink&oid=6516907 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6385267&loc=d3e42674-111610 false03-4 (in years)6false 5us-gaap_LifeSettlementContractsInvestmentMethodNumberOfContractsMaturingInYearFiveus-gaap_truenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse88falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:integerItemTypeintegerNumber of life settlement contracts accounted for under the investment method maturing in the fifth fiscal year following the latest fiscal year.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Life Settlement Contract -URI http://asc.fasb.org/extlink&oid=6516907 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6385267&loc=d3e42674-111610 false04-5 (in years)7false 5us-gaap_LifeSettlementContractsInvestmentMethodNumberOfContractsMaturingAfterYearFiveus-gaap_truenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse137137falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:integerItemTypeintegerNumber of life settlement contracts accounted for under the investment method maturing after the fifth fiscal year following the latest fiscal year.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Life Settlement Contract -URI http://asc.fasb.org/extlink&oid=6516907 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6385267&loc=d3e42674-111610 false0Thereafter8false 5us-gaap_LifeSettlementContractsInvestmentMethodNumberOfContractsus-gaap_truenainstantfalsefalsefalsefalsefalsefalsefalsefalsetotalLabel1truefalsefalse164164falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:integerItemTypeintegerNumber of life settlement contracts accounted for under the investment method.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Life Settlement Contract -URI http://asc.fasb.org/extlink&oid=6516907 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6385267&loc=d3e42674-111610 true0Total9true 4us-gaap_LifeSettlementContractsInvestmentMethodCarryingAmountFiscalYearMaturityAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Carrying Value10false 5us-gaap_LifeSettlementContractsInvestmentMethodCarryingAmountMaturingInNextTwelveMonthsus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse35063506USD$falsetruefalse2falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryCarrying amount of life settlement contracts accounted for under the investment method maturing in the next fiscal year following the latest fiscal year.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Life Settlement Contract -URI http://asc.fasb.org/extlink&oid=6516907 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6385267&loc=d3e42674-111610 false20-1 (in years)11false 5us-gaap_LifeSettlementContractsInvestmentMethodCarryingAmountMaturingInYearTwous-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryCarrying amount of life settlement contracts accounted for under the investment method maturing in the second fiscal year following the latest fiscal year.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Life Settlement Contract -URI http://asc.fasb.org/extlink&oid=6516907 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6385267&loc=d3e42674-111610 false21-2 (in years)12false 5us-gaap_LifeSettlementContractsInvestmentMethodCarryingAmountMaturingInYearThreeus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse686247686247falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryCarrying amount of life settlement contracts accounted for under the investment method maturing in the third fiscal year following the latest fiscal year.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Life Settlement Contract -URI http://asc.fasb.org/extlink&oid=6516907 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6385267&loc=d3e42674-111610 false22-3 (in years)13false 5us-gaap_LifeSettlementContractsInvestmentMethodCarryingAmountMaturingInYearFourus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse4511745117falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryCarrying amount of life settlement contracts accounted for under the investment method maturing in the fourth fiscal year following the latest fiscal year.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Life Settlement Contract -URI http://asc.fasb.org/extlink&oid=6516907 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6385267&loc=d3e42674-111610 false23-4 (in years)14false 5us-gaap_LifeSettlementContractsInvestmentMethodCarryingAmountMaturingInYearFiveus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse7141371413falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryCarrying amount of life settlement contracts accounted for under the investment method maturing in the fifth fiscal year following the latest fiscal year.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Life Settlement Contract -URI http://asc.fasb.org/extlink&oid=6516907 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6385267&loc=d3e42674-111610 false24-5 (in years)15false 5us-gaap_LifeSettlementContractsInvestmentMethodCarryingAmountMaturingAfterYearFiveus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse15005741500574falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryCarrying amount of life settlement contracts accounted for under the investment method maturing after the fifth fiscal year following the latest fiscal year.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Life Settlement Contract -URI http://asc.fasb.org/extlink&oid=6516907 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6385267&loc=d3e42674-111610 false2Thereafter16false 5us-gaap_LifeSettlementContractsInvestmentMethodCarryingAmountMaturingInRemainderOfFiscalYearus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalsetotalLabel1truefalsefalse23068572306857falsefalsefalse2truefalsefalse23290052329005falsefalsefalsexbrli:monetaryItemTypemonetaryCarrying amount of life settlement contracts accounted for under the investment method maturing in the remainder of the fiscal year following the latest fiscal year ended.No definition available.true2Total17true 4us-gaap_LifeSettlementContractsInvestmentMethodFaceValueFiscalYearMaturityAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Face Value18false 5us-gaap_LifeSettlementContractsInvestmentMethodFaceValueMaturingInNextTwelveMonthsus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse1818218182falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryFace value (death benefits) of the life insurance policies underlying the life settlement contracts accounted for under the investment method maturing in the next fiscal year following the latest fiscal year.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Life Settlement Contract -URI http://asc.fasb.org/extlink&oid=6516907 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6385267&loc=d3e42674-111610 false20-1 (in years)19false 5us-gaap_LifeSettlementContractsInvestmentMethodFaceValueMaturingInYearTwous-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryFace value (death benefits) of the life insurance policies underlying the life settlement contracts accounted for under the investment method maturing in the second fiscal year following the latest fiscal year.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Life Settlement Contract -URI http://asc.fasb.org/extlink&oid=6516907 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6385267&loc=d3e42674-111610 false21-2 (in years)20false 5us-gaap_LifeSettlementContractsInvestmentMethodFaceValueMaturingInYearThreeus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse969345969345falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryFace value (death benefits) of the life insurance policies underlying the life settlement contracts accounted for under the investment method maturing in the third fiscal year following the latest fiscal year.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Life Settlement Contract -URI http://asc.fasb.org/extlink&oid=6516907 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6385267&loc=d3e42674-111610 false22-3 (in years)21false 5us-gaap_LifeSettlementContractsInvestmentMethodFaceValueMaturingInYearFourus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse227992227992falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryFace value (death benefits) of the life insurance policies underlying the life settlement contracts accounted for under the investment method maturing in the fourth fiscal year following the latest fiscal year.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Life Settlement Contract -URI http://asc.fasb.org/extlink&oid=6516907 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6385267&loc=d3e42674-111610 false23-4 (in years)22false 5us-gaap_LifeSettlementContractsInvestmentMethodFaceValueMaturingInYearFiveus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse134883134883falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryFace value (death benefits) of the life insurance policies underlying the life settlement contracts accounted for under the investment method maturing in the fifth fiscal year following the latest fiscal year.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Life Settlement Contract -URI http://asc.fasb.org/extlink&oid=6516907 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6385267&loc=d3e42674-111610 false24-5 (in years)23false 5us-gaap_LifeSettlementContractsInvestmentMethodFaceValueMaturingAfterYearFiveus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse51084875108487falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryFace value (death benefits) of the life insurance policies underlying the life settlement contracts accounted for under the investment method maturing after the fifth fiscal year following the latest fiscal year.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Life Settlement Contract -URI http://asc.fasb.org/extlink&oid=6516907 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6385267&loc=d3e42674-111610 false2Thereafter24false 5us-gaap_LifeSettlementContractsInvestmentMethodFaceValueus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalsetotalLabel1truefalsefalse64588896458889USD$falsetruefalse2falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryFace value (death benefits) of the life insurance policies underlying the life settlement contracts accounted for under the investment method.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Life Settlement Contract -URI http://asc.fasb.org/extlink&oid=6516907 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6385267&loc=d3e42674-111610 true2TotalfalseInvestments in Policies Account (Detail) (USD $)NoRoundingUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.lphi.com/role/InvestmentsInPoliciesAccountDetail224