3.25.1 html 506 96 1 true 260 0 false 3 false false R1.htm 01001 - Document - Document and Entity Information {Elements} Sheet http://www.lordabbett.com/20241130/role/DocumentAndEntityInformation1 Document and Entity Information Risk/Return 1 false true R2.htm 01002 - Document - Risk/Return Summary (Lord Abbett Multi-Asset Balanced Opportunity Fund) {Unlabeled} Sheet http://www.lordabbett.com/20241130/role/RRSummary2 Risk/Return Summary (Lord Abbett Multi-Asset Balanced Opportunity Fund) Risk/Return 2 false false R3.htm 01003 - Disclosure - Risk/Return Detail Data (Lord Abbett Multi-Asset Balanced Opportunity Fund) {Elements} Sheet http://www.lordabbett.com/20241130/role/RRDetailData3 Risk/Return Detail Data (Lord Abbett Multi-Asset Balanced Opportunity Fund) Risk/Return 3 false true R11.htm 01011 - Document - Risk/Return Summary (Lord Abbett Multi-Asset Income Fund) {Unlabeled} Sheet http://www.lordabbett.com/20241130/role/RRSummary11 Risk/Return Summary (Lord Abbett Multi-Asset Income Fund) Risk/Return 4 false false R12.htm 01012 - Disclosure - Risk/Return Detail Data (Lord Abbett Multi-Asset Income Fund) {Elements} Sheet http://www.lordabbett.com/20241130/role/RRDetailData12 Risk/Return Detail Data (Lord Abbett Multi-Asset Income Fund) Risk/Return 5 false true R20.htm 01020 - Document - Risk/Return Summary (Lord Abbett Convertible Fund) {Unlabeled} Sheet http://www.lordabbett.com/20241130/role/RRSummary20 Risk/Return Summary (Lord Abbett Convertible Fund) Risk/Return 6 false false R21.htm 01021 - Disclosure - Risk/Return Detail Data (Lord Abbett Convertible Fund) {Elements} Sheet http://www.lordabbett.com/20241130/role/RRDetailData21 Risk/Return Detail Data (Lord Abbett Convertible Fund) Risk/Return 7 false true R29.htm 01029 - Document - Risk/Return Summary (Lord Abbett Core Fixed Income Fund) {Unlabeled} Sheet http://www.lordabbett.com/20241130/role/RRSummary29 Risk/Return Summary (Lord Abbett Core Fixed Income Fund) Risk/Return 8 false false R30.htm 01030 - Disclosure - Risk/Return Detail Data (Lord Abbett Core Fixed Income Fund) {Elements} Sheet http://www.lordabbett.com/20241130/role/RRDetailData30 Risk/Return Detail Data (Lord Abbett Core Fixed Income Fund) Risk/Return 9 false true R38.htm 01038 - Document - Risk/Return Summary (Lord Abbett Core Plus Bond Fund) {Unlabeled} Sheet http://www.lordabbett.com/20241130/role/RRSummary38 Risk/Return Summary (Lord Abbett Core Plus Bond Fund) Risk/Return 10 false false R39.htm 01039 - Disclosure - Risk/Return Detail Data (Lord Abbett Core Plus Bond Fund) {Elements} Sheet http://www.lordabbett.com/20241130/role/RRDetailData39 Risk/Return Detail Data (Lord Abbett Core Plus Bond Fund) Risk/Return 11 false true R47.htm 01047 - Document - Risk/Return Summary (Lord Abbett Floating Rate Fund) {Unlabeled} Sheet http://www.lordabbett.com/20241130/role/RRSummary47 Risk/Return Summary (Lord Abbett Floating Rate Fund) Risk/Return 12 false false R48.htm 01048 - Disclosure - Risk/Return Detail Data (Lord Abbett Floating Rate Fund) {Elements} Sheet http://www.lordabbett.com/20241130/role/RRDetailData48 Risk/Return Detail Data (Lord Abbett Floating Rate Fund) Risk/Return 13 false true R56.htm 01056 - Document - Risk/Return Summary (Lord Abbett High Yield Fund) {Unlabeled} Sheet http://www.lordabbett.com/20241130/role/RRSummary56 Risk/Return Summary (Lord Abbett High Yield Fund) Risk/Return 14 false false R57.htm 01057 - Disclosure - Risk/Return Detail Data (Lord Abbett High Yield Fund) {Elements} Sheet http://www.lordabbett.com/20241130/role/RRDetailData57 Risk/Return Detail Data (Lord Abbett High Yield Fund) Risk/Return 15 false true R65.htm 01065 - Document - Risk/Return Summary (Lord Abbett Income Fund) {Unlabeled} Sheet http://www.lordabbett.com/20241130/role/RRSummary65 Risk/Return Summary (Lord Abbett Income Fund) Risk/Return 16 false false R66.htm 01066 - Disclosure - Risk/Return Detail Data (Lord Abbett Income Fund) {Elements} Sheet http://www.lordabbett.com/20241130/role/RRDetailData66 Risk/Return Detail Data (Lord Abbett Income Fund) Risk/Return 17 false true R74.htm 01074 - Document - Risk/Return Summary (Lord Abbett Inflation Focused Fund) {Unlabeled} Sheet http://www.lordabbett.com/20241130/role/RRSummary74 Risk/Return Summary (Lord Abbett Inflation Focused Fund) Risk/Return 18 false false R75.htm 01075 - Disclosure - Risk/Return Detail Data (Lord Abbett Inflation Focused Fund) {Elements} Sheet http://www.lordabbett.com/20241130/role/RRDetailData75 Risk/Return Detail Data (Lord Abbett Inflation Focused Fund) Risk/Return 19 false true R83.htm 01083 - Document - Risk/Return Summary (Lord Abbett Short Duration Core Bond Fund) {Unlabeled} Sheet http://www.lordabbett.com/20241130/role/RRSummary83 Risk/Return Summary (Lord Abbett Short Duration Core Bond Fund) Risk/Return 20 false false R84.htm 01084 - Disclosure - Risk/Return Detail Data (Lord Abbett Short Duration Core Bond Fund) {Elements} Sheet http://www.lordabbett.com/20241130/role/RRDetailData84 Risk/Return Detail Data (Lord Abbett Short Duration Core Bond Fund) Risk/Return 21 false true R92.htm 01092 - Document - Risk/Return Summary (Lord Abbett Short Duration Income Fund) {Unlabeled} Sheet http://www.lordabbett.com/20241130/role/RRSummary92 Risk/Return Summary (Lord Abbett Short Duration Income Fund) Risk/Return 22 false false R93.htm 01093 - Disclosure - Risk/Return Detail Data (Lord Abbett Short Duration Income Fund) {Elements} Sheet http://www.lordabbett.com/20241130/role/RRDetailData93 Risk/Return Detail Data (Lord Abbett Short Duration Income Fund) Risk/Return 23 false true R101.htm 01101 - Document - Risk/Return Summary (Lord Abbett Total Return Fund) {Unlabeled} Sheet http://www.lordabbett.com/20241130/role/RRSummary101 Risk/Return Summary (Lord Abbett Total Return Fund) Risk/Return 24 false false R102.htm 01102 - Disclosure - Risk/Return Detail Data (Lord Abbett Total Return Fund) {Elements} Sheet http://www.lordabbett.com/20241130/role/RRDetailData102 Risk/Return Detail Data (Lord Abbett Total Return Fund) Risk/Return 25 false true R110.htm 01110 - Document - Risk/Return Summary (Lord Abbett Ultra Short Bond Fund) {Unlabeled} Sheet http://www.lordabbett.com/20241130/role/RRSummary110 Risk/Return Summary (Lord Abbett Ultra Short Bond Fund) Risk/Return 26 false false R111.htm 01111 - Disclosure - Risk/Return Detail Data (Lord Abbett Ultra Short Bond Fund) {Elements} Sheet http://www.lordabbett.com/20241130/role/RRDetailData111 Risk/Return Detail Data (Lord Abbett Ultra Short Bond Fund) Risk/Return 27 false false All Reports Book All Reports c111543_485bpos-ixbrl.htm c485bpos-20250327.xsd c485bpos-20250327_cal.xml c485bpos-20250327_def.xml c485bpos-20250327_lab.xml c485bpos-20250327_pre.xml img_02a900f5cfd44f3.jpg img_2f82faa4d3e04f2.jpg img_30542c8ec5e54f2.jpg img_340ad81fc80f4f2.jpg img_4fed33f5b2164f2.jpg img_50de55e1eb094f2.jpg img_6076ba19db274f2.jpg img_6fef79c0854d4f2.jpg img_895ae59aa68d4f3.jpg img_8a309754defa4f2.jpg img_a3c5590eaed54f3.jpg img_a8e345ebda6a4f2.jpg img_ae9f79e10c604f2.jpg img_af8892b67d9e4f2.jpg img_c227889870394f2.jpg img_c9086e83454a4f2.jpg img_ec30003bfbc44f2.jpg img_fa130c5190b64f2.jpg BarChart1.png BarChart2.png BarChart3.png BarChart4.png BarChart5.png BarChart6.png BarChart7.png BarChart8.png BarChart9.png BarChart10.png BarChart11.png BarChart12.png BarChart13.png BarChart1.png BarChart2.png BarChart3.png BarChart4.png BarChart5.png BarChart6.png BarChart7.png BarChart8.png BarChart9.png BarChart10.png BarChart11.png BarChart12.png BarChart13.png http://xbrl.sec.gov/dei/2023 http://xbrl.sec.gov/rr/2023 true true