{"cik":"0001552580","entityType":"other","sic":"","sicDescription":"","ownerOrg":null,"insiderTransactionForOwnerExists":0,"insiderTransactionForIssuerExists":0,"name":"Kaiser Aluminum Washington, LLC","tickers":[],"exchanges":[],"ein":"273859817","lei":null,"description":"","website":"","investorWebsite":"","category":"","fiscalYearEnd":"1231","stateOfIncorporation":"DE","stateOfIncorporationDescription":"DE","addresses":{"mailing":{"street1":"27422 PORTOLA PARKWAY, SUITE 200","street2":null,"city":"FOOTHILL RANCH","stateOrCountry":"CA","zipCode":"92610-2831","stateOrCountryDescription":"CA","isForeignLocation":null,"foreignStateTerritory":null,"country":null,"countryCode":null},"business":{"street1":"27422 PORTOLA PARKWAY, SUITE 200","street2":null,"city":"FOOTHILL RANCH","stateOrCountry":"CA","zipCode":"92610-2831","stateOrCountryDescription":"CA","isForeignLocation":null,"foreignStateTerritory":null,"country":null,"countryCode":null}},"phone":"(949) 614-1740","flags":"","formerNames":[],"filings":{"recent":{"accessionNumber":["0001193125-16-688029","9999999995-16-005485","0001193125-16-685149","0000000000-16-088811","0001193125-16-670191","9999999995-12-002417","0001193125-12-343374","0001193125-12-337001","0001193125-12-336936","0000000000-12-040356","0001193125-12-310662"],"filingDate":["2016-08-23","2016-08-22","2016-08-18","2016-08-16","2016-08-03","2012-08-08","2012-08-08","2012-08-06","2012-08-06","2012-07-27","2012-07-23"],"reportDate":["","","","","","","","","","",""],"acceptanceDateTime":["2016-08-23T12:00:35.000Z","2016-08-23T04:15:11.000Z","2016-08-18T19:28:02.000Z","2016-08-16T17:28:46.000Z","2016-08-03T20:49:22.000Z","2012-08-09T04:15:11.000Z","2012-08-08T17:12:02.000Z","2012-08-06T16:28:55.000Z","2012-08-06T16:09:05.000Z","2012-07-27T20:43:48.000Z","2012-07-23T21:15:54.000Z"],"act":["33","33","","","33","33","33","","33","","33"],"form":["424B3","EFFECT","CORRESP","UPLOAD","S-4","EFFECT","424B3","CORRESP","S-4/A","UPLOAD","S-4"],"fileNumber":["333-212875-03","333-212875-03","","","333-212875-03","333-182809-01","333-182809-01","","333-182809-01","","333-182809-01"],"filmNumber":["161846425","161846356","","","161804516","121018360","121016157","","121009003","","12974927"],"items":["","S-4,,2016-08-22 16:00:00","","","","S-4,,2012-08-08 12:00:00","","","","",""],"core_type":["424B3","EFFECT","CORRESP","LETTER","S-4","EFFECT","424B3","CORRESP","S-4/A","LETTER","S-4"],"size":[780406,4988,10184,156563,1240307,5786,871553,26307,1031252,164452,1709721],"isXBRL":[0,0,0,0,0,0,0,0,0,0,0],"isInlineXBRL":[0,0,0,0,0,0,0,0,0,0,0],"isXBRLNumeric":[null,null,null,null,null,null,null,null,null,null,null],"primaryDocument":["d230490d424b3.htm","xslEFFECTX01/primary_doc.xml","filename1.htm","filename1.pdf","d230490ds4.htm","xslEFFECTX01/primary_doc.xml","d371121d424b3.htm","filename1.htm","d371121ds4a.htm","filename1.pdf","d371121ds4.htm"],"primaryDocDescription":["424(B)(3)","","","","S-4","","FORM 424(B)(3)","","AMENDMENT NO. 1 TO FORM S-4","","FORM S-4"]},"files":[]}}