{"cik":"0001220665","entityType":"operating","sic":"6189","sicDescription":"Asset-Backed Securities","ownerOrg":null,"insiderTransactionForOwnerExists":0,"insiderTransactionForIssuerExists":0,"name":"WELLS FARGO MORTGAGE BACKED SECURITIES 2003-1 TRUST","tickers":[],"exchanges":[],"ein":null,"lei":null,"description":"","website":"","investorWebsite":"","category":"","fiscalYearEnd":"1231","stateOfIncorporation":"DE","stateOfIncorporationDescription":"DE","addresses":{"mailing":{"street1":null,"street2":null,"city":null,"stateOrCountry":null,"zipCode":null,"stateOrCountryDescription":null,"isForeignLocation":null,"foreignStateTerritory":null,"country":null,"countryCode":null},"business":{"street1":"7485 NEW HORIZON WAY","street2":null,"city":"FREDERICK","stateOrCountry":"MD","zipCode":"21703","stateOrCountryDescription":"MD","isForeignLocation":null,"foreignStateTerritory":null,"country":null,"countryCode":null}},"phone":null,"flags":"","formerNames":[],"filings":{"recent":{"accessionNumber":["0001056404-04-000957","0001056404-04-000351","0001056404-04-000063","0001056404-03-002437","0001056404-03-002436","0001056404-03-002146","0001056404-03-001847","0001056404-03-001593","0001056404-03-001428","0000914121-03-000833","0001056404-03-001124","0001056404-03-000897","0001056404-03-000806","0001056404-03-000679","0000914121-03-000364","0000950168-03-000524"],"filingDate":["2004-03-30","2004-01-23","2004-01-07","2003-12-09","2003-12-09","2003-11-10","2003-10-07","2003-09-08","2003-08-11","2003-07-08","2003-07-08","2003-06-04","2003-05-07","2003-04-09","2003-04-07","2003-02-25"],"reportDate":["2004-03-29","","2003-12-25","2003-03-25","2003-11-25","2003-10-25","2003-09-25","2003-08-25","2003-07-25","2003-06-20","2003-06-25","2003-05-25","2003-04-25","2003-03-25","2003-02-26",""],"acceptanceDateTime":["2004-03-29T22:54:49.000Z","2004-01-23T20:04:29.000Z","2004-01-07T19:50:24.000Z","2003-12-09T18:59:40.000Z","2003-12-09T18:59:24.000Z","2003-11-10T15:50:08.000Z","2003-10-07T12:33:02.000Z","2003-09-08T17:32:47.000Z","2003-08-08T22:45:06.000Z","2003-07-08T14:47:16.000Z","2003-07-08T13:58:32.000Z","2003-06-04T15:17:14.000Z","2003-05-07T16:44:56.000Z","2003-04-09T18:06:51.000Z","2003-04-07T20:08:36.000Z","2003-02-25T20:46:58.000Z"],"act":["","","","","","","","","","","","","","","",""],"form":["10-K","15-15D","8-K","8-K/A","8-K","8-K","8-K","8-K","8-K","8-K","8-K","8-K","8-K","8-K","8-K","424B5"],"fileNumber":["333-98129-13","333-98129-13","333-98129-13","333-98129-13","333-98129-13","333-98129-13","333-98129-13","333-98129-13","333-98129-13","333-98129-13","333-98129-13","333-98129-13","333-98129-13","333-98129-13","333-98129-13","333-98129-13"],"filmNumber":["04697495","04540441","04512827","031044484","031044482","03987020","03930516","03885609","03832924","03777938","03777848","03731577","03685672","03643853","03641555","03579309"],"items":["","","5,7","5,7","5,7","5,7","5,7","5,7","5,7","5,7","5,7","5,7","5,7","5,7","5,7",""],"core_type":["10-K","15-15D","8-K","8-K/A","8-K","8-K","8-K","8-K","8-K","8-K","8-K","8-K","8-K","8-K","8-K","424B5"],"size":[38274,4291,75366,75710,75323,75317,75310,75343,75316,12857,74985,74915,74990,74905,907101,3211811],"isXBRL":[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"isInlineXBRL":[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"isXBRLNumeric":[null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null],"primaryDocument":["wfm03001_form10k.txt","wfm03001_form15.txt","wfm03001.txt","wfm03001_march.txt","wfm03001.txt","wfm03001.txt","wfm03001.txt","wfm03001_aug.txt","wfm03001.txt","we717219-8k.txt","wfm03001.txt","wfm03001.txt","wfm03001.txt","wfm03001.txt","we705494-8k.txt","d424b5.htm"],"primaryDocDescription":["","","DECEMBER 8-K","MARCH 8-K/A","NOVEMBER 8K","OCTOBER 8K","SEPTEMBER 8-K","AUGUST 8-K","JULY 8K","CURRENT REPORT","JUNE 8-K","MAY 8K","APRIL 8K","MARCH 8K","CURRENT REPORT","2003-1 424B5"]},"files":[]}}