{"cik":"0001400762","entityType":"operating","sic":"6189","sicDescription":"Asset-Backed Securities","ownerOrg":null,"insiderTransactionForOwnerExists":0,"insiderTransactionForIssuerExists":0,"name":"Structured Asset Securities CORP Mortgage Loan Trust 2007-OSI","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":["0001056404-08-000862","0001056404-08-000495","0001056404-08-000043","0001056404-07-003940","0001056404-07-003572","0001144204-07-054508","0001056404-07-003107","0001056404-07-002790","0001056404-07-002473","0001056404-07-002251","0001144204-07-031977","0001144204-07-029658","0001144204-07-029596","0001144204-07-029289","0001144204-07-029288","0001144204-07-028747"],"filingDate":["2008-03-27","2008-01-28","2008-01-03","2007-12-07","2007-11-06","2007-10-16","2007-10-03","2007-09-05","2007-08-02","2007-07-03","2007-06-14","2007-05-31","2007-05-31","2007-05-30","2007-05-30","2007-05-25"],"reportDate":["2007-12-31","","2007-12-26","2007-11-26","2007-10-25","2007-08-01","2007-09-25","2007-08-27","2007-07-25","2007-06-25","2007-05-30","","","","2007-05-30",""],"acceptanceDateTime":["2008-03-27T17:46:13.000Z","2008-01-28T16:01:24.000Z","2008-01-03T20:24:39.000Z","2007-12-07T15:51:48.000Z","2007-11-06T21:14:26.000Z","2007-10-16T19:21:11.000Z","2007-10-03T17:50:23.000Z","2007-09-05T15:35:57.000Z","2007-08-02T20:25:27.000Z","2007-07-03T13:13:44.000Z","2007-06-14T21:28:40.000Z","2007-05-31T21:07:35.000Z","2007-05-31T19:41:00.000Z","2007-05-30T18:37:28.000Z","2007-05-30T18:36:41.000Z","2007-05-25T17:05:17.000Z"],"act":["34","34","34","34","34","34","34","34","34","34","34","33","34","34","34","34"],"form":["10-K","15-15D","10-D","10-D","10-D","8-K","10-D","10-D","10-D","10-D","8-K","424B5","FWP","FWP","8-K","FWP"],"fileNumber":["333-133985-72","333-133985-72","333-133985-72","333-133985-72","333-133985-72","333-133985-72","333-133985-72","333-133985-72","333-133985-72","333-133985-72","333-133985-72","333-133985-72","333-133985-72","333-133985-72","333-133985-72","333-133985-72"],"filmNumber":["08714450","08552816","08506085","071291328","071218136","071174182","071152839","071098721","071020799","07957548","07920828","07891578","07890847","07886924","07886914","07879717"],"items":["","","","","","6.02,9.01","","","","","8.01,9.01","","","","8.01,9.01",""],"core_type":["10-K","15-15D","10-D","10-D","10-D","8-K","10-D","10-D","10-D","10-D","8-K","424B5","FWP","FWP","8-K","FWP"],"size":[238208,4256,243992,223346,191051,217935,150070,148926,140077,166664,8146140,12291778,7960990,143863,59571,10371663],"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":["sac07osi_10k-2007.txt","sac07osi_15-2007.txt","sac07osi_10d-200712.txt","sac07osi_10d-200711.txt","sac07osi_10d-200710.txt","v090414_8k.htm","sac07osi_10d-200709.txt","sac07osi_10d-200708.txt","sac07osi_10d-200707.txt","sac07osi_10d-200706.txt","v078185_8k.htm","v077089_424b5.htm","v077191_fwp.htm","v077064_fwp.htm","v077124_8k.htm","v076629_fwp.htm"],"primaryDocDescription":["","","","","","","","","","","","","","","",""]},"files":[]}}