{"cik":"0001345230","entityType":"operating","sic":"6189","sicDescription":"Asset-Backed Securities","ownerOrg":null,"insiderTransactionForOwnerExists":0,"insiderTransactionForIssuerExists":0,"name":"Structured Asset Securities Corp 2005-WF4","tickers":[],"exchanges":[],"ein":null,"lei":null,"description":"","website":"","investorWebsite":"","category":"","fiscalYearEnd":"1231","stateOfIncorporation":"DE","stateOfIncorporationDescription":"DE","addresses":{"mailing":{"street1":"745 7TH AVENUE","street2":null,"city":"NEW YORK","stateOrCountry":"NY","zipCode":"10019","stateOrCountryDescription":"NY","isForeignLocation":null,"foreignStateTerritory":null,"country":null,"countryCode":null},"business":{"street1":"745 7TH AVENUE","street2":null,"city":"NEW YORK","stateOrCountry":"NY","zipCode":"10019","stateOrCountryDescription":"NY","isForeignLocation":null,"foreignStateTerritory":null,"country":null,"countryCode":null}},"phone":"2125267000","flags":"","formerNames":[],"filings":{"recent":{"accessionNumber":["0001056404-06-001493","0001056404-06-000903","0001056404-06-000036","0001162318-05-001090","0000950117-05-004452"],"filingDate":["2006-03-30","2006-01-27","2006-01-03","2005-12-07","2005-11-23"],"reportDate":["2005-12-31","","2005-12-27","2005-11-23",""],"acceptanceDateTime":["2006-03-30T19:35:38.000Z","2006-01-27T20:31:25.000Z","2006-01-03T22:06:18.000Z","2005-12-07T22:31:51.000Z","2005-11-23T20:19:56.000Z"],"act":["34","34","34","34","33"],"form":["10-K","15-15D","8-K","8-K","424B5"],"fileNumber":["333-127589-15","333-127589-15","333-127589-15","333-127589-15","333-127589-15"],"filmNumber":["06722532","06557562","06503274","051250396","051224724"],"items":["","","8.01,9.01","8.01",""],"core_type":["10-K","15-15D","8-K","8-K","424B5"],"size":[19420,4124,182063,4677623,1581498],"isXBRL":[0,0,0,0,0],"isInlineXBRL":[0,0,0,0,0],"isXBRLNumeric":[null,null,null,null,null],"primaryDocument":["sac05wf4_10k-2005.txt","sac05wf4_15-2005.txt","sac05wf4_8k-200512.txt","form8k.htm","a40851.txt"],"primaryDocDescription":["","","","FORM 8-K","LEHMAN BROTHERS SERIES 2005-WF4"]},"files":[]}}