<SEC-DOCUMENT>0000811596-19-000061.txt : 20191031
<SEC-HEADER>0000811596-19-000061.hdr.sgml : 20191031
<ACCEPTANCE-DATETIME>20191030214908
ACCESSION NUMBER:		0000811596-19-000061
CONFORMED SUBMISSION TYPE:	8-K/A
PUBLIC DOCUMENT COUNT:		15
CONFORMED PERIOD OF REPORT:	20191030
ITEM INFORMATION:		Regulation FD Disclosure
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20191031
DATE AS OF CHANGE:		20191030

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			KAISER ALUMINUM CORP
		CENTRAL INDEX KEY:			0000811596
		STANDARD INDUSTRIAL CLASSIFICATION:	ROLLING DRAWING & EXTRUDING OF NONFERROUS METALS [3350]
		IRS NUMBER:				943030279
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-09447
		FILM NUMBER:		191181882

	BUSINESS ADDRESS:	
		STREET 1:		27422 PORTOLA PARKWAY, SUITE 200
		CITY:			FOOTHILL RANCH
		STATE:			CA
		ZIP:			92610-2831
		BUSINESS PHONE:		949-614-1740

	MAIL ADDRESS:	
		STREET 1:		27422 PORTOLA PARKWAY, SUITE 200
		CITY:			FOOTHILL RANCH
		STATE:			CA
		ZIP:			92610-2831

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	KAISERTECH LTD
		DATE OF NAME CHANGE:	19901122
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K/A
<SEQUENCE>1
<FILENAME>amended2019creditagree.htm
<DESCRIPTION>8-K/A
<TEXT>
<XBRL>
<?xml version="1.0" encoding="UTF-8"?>
<!--XBRL Document Created with Wdesk from Workiva-->
<!--p:d94657e25fc644bbb29d10eababc3aef,x:0485263f08e74f7e9bf10b0d2744e67f-->
<!-- Document created using Wdesk  -->
<!-- Copyright 2019 Workiva -->
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:schedoi-fednote="http://fasb.org/dis/schedoi-fednote/2019-01-31" xmlns:fs-interest="http://fasb.org/dis/fs-interest/2019-01-31" xmlns:sfp-ibo="http://fasb.org/stm/sfp-ibo/2019-01-31" xmlns:sfp-sbo="http://fasb.org/stm/sfp-sbo/2019-01-31" xmlns:sic-std="http://xbrl.sec.gov/sic-std/2011-01-31" xmlns:stpr-std="http://xbrl.sec.gov/stpr-std-std-std/2018-01-31" xmlns:currency-ent-std="http://xbrl.sec.gov/currency-ent-std/2019-01-31" xmlns:lea="http://fasb.org/dis/lea/2019-01-31" xmlns:ctbl="http://fasb.org/dis/ctbl/2019-01-31" xmlns:guar="http://fasb.org/dis/guar/2019-01-31" xmlns:ru="http://fasb.org/dis/ru/2019-01-31" xmlns:stpr-all="http://xbrl.sec.gov/stpr-all-all-all/2018-01-31" xmlns:leas="http://fasb.org/dis/leas/2019-01-31" xmlns:sfp-clreo="http://fasb.org/stm/sfp-clreo/2019-01-31" xmlns:iaoi="http://fasb.org/dis/iaoi/2019-01-31" xmlns:soi-ins="http://fasb.org/stm/soi-ins/2019-01-31" xmlns:country-ent-std="http://xbrl.sec.gov/country-ent-std/2017-01-31" xmlns:country="http://xbrl.sec.gov/country/2017-01-31" xmlns:fs-insa="http://fasb.org/dis/fs-insa/2019-01-31" xmlns:naics="http://xbrl.sec.gov/naics/2017-01-31" xmlns:cce="http://fasb.org/dis/cce/2019-01-31" xmlns:inv="http://fasb.org/dis/inv/2019-01-31" xmlns:naics-ent-std="http://xbrl.sec.gov/naics-ent-std/2017-01-31" xmlns:srt-std="http://fasb.org/srt-std/2019-01-31" xmlns:stpr-ent-all="http://xbrl.sec.gov/stpr-ent-all-all-all/2018-01-31" xmlns:stpr-ent-std="http://xbrl.sec.gov/stpr-ent-std-std-std/2018-01-31" xmlns:schedoi-iiaa="http://fasb.org/dis/schedoi-iiaa/2019-01-31" xmlns:us-arcroles="http://fasb.org/us-arcroles/2019-01-31" xmlns:dccpoa="http://fasb.org/dis/dccpoa/2019-01-31" xmlns:soi-sbi="http://fasb.org/stm/soi-sbi/2019-01-31" xmlns:us-gaap-all="http://fasb.org/us-gaap-all/2019-01-31" xmlns:scf-sd="http://fasb.org/stm/scf-sd/2019-01-31" xmlns:ceclcalc3l="http://fasb.org/dis/ceclcalc3l/2019-01-31" xmlns:dei-ent-all="http://xbrl.sec.gov/dei-ent-all/2019-01-31" xmlns:deprecated="http://www.xbrl.org/2009/arcrole/deprecated" xmlns:naics-all="http://xbrl.sec.gov/naics-all/2017-01-31" xmlns:re="http://fasb.org/dis/re/2019-01-31" xmlns:srt-types="http://fasb.org/srt-types/2019-01-31" xmlns:reorg="http://fasb.org/dis/reorg/2019-01-31" xmlns:invco="http://fasb.org/dis/invco/2019-01-31" xmlns:currency-ent-all="http://xbrl.sec.gov/currency-ent-all/2019-01-31" xmlns:currency-std="http://xbrl.sec.gov/currency-std/2019-01-31" xmlns:currency-ent-dep="http://xbrl.sec.gov/currency-ent-dep/2019-01-31" xmlns:aro="http://fasb.org/dis/aro/2019-01-31" xmlns:exch="http://xbrl.sec.gov/exch/2019-01-31" xmlns:ocpfs="http://fasb.org/dis/ocpfs/2019-01-31" xmlns:currency="http://xbrl.sec.gov/currency/2019-01-31" xmlns:naics-std="http://xbrl.sec.gov/naics-std/2017-01-31" xmlns:srt-all="http://fasb.org/srt-all/2019-01-31" xmlns:codification-part="http://fasb.org/codification-part/2019-01-31" xmlns:srt="http://fasb.org/srt/2019-01-31" xmlns:deprecated1="http://www.xbrl.org/2009/role/deprecated" xmlns:sec-re="http://fasb.org/dis/sec-re/2019-01-31" xmlns:soi-int="http://fasb.org/stm/soi-int/2019-01-31" xmlns:emjv="http://fasb.org/dis/emjv/2019-01-31" xmlns:sec-suppc="http://fasb.org/dis/sec-suppc/2019-01-31" xmlns:equity="http://fasb.org/dis/equity/2019-01-31" xmlns:ix="http://www.xbrl.org/2013/inlineXBRL" xmlns:se="http://fasb.org/dis/se/2019-01-31" xmlns:crcrb="http://fasb.org/dis/crcrb/2019-01-31" xmlns:edco="http://fasb.org/dis/edco/2019-01-31" xmlns:te="http://fasb.org/dis/te/2019-01-31" xmlns:dei-all="http://xbrl.sec.gov/dei-all/2019-01-31" xmlns:fs-bd="http://fasb.org/dis/fs-bd/2019-01-31" xmlns:invest-all="http://xbrl.sec.gov/invest-all/2013-01-31" xmlns:hco="http://fasb.org/dis/hco/2019-01-31" xmlns:fs-bt="http://fasb.org/dis/fs-bt/2019-01-31" xmlns:us-roles="http://fasb.org/us-roles/2019-01-31" xmlns:dr="http://fasb.org/dis/dr/2019-01-31" xmlns:ero="http://fasb.org/dis/ero/2019-01-31" xmlns:country-ent-all="http://xbrl.sec.gov/country-ent-all/2017-01-31" xmlns:schedoi-oocw="http://fasb.org/dis/schedoi-oocw/2019-01-31" xmlns:cecl="http://fasb.org/dis/cecl/2019-01-31" xmlns:rpd="http://fasb.org/dis/rpd/2019-01-31" xmlns:schedoi-sumhold="http://fasb.org/dis/schedoi-sumhold/2019-01-31" xmlns:ceclcalc2="http://fasb.org/dis/ceclcalc2/2019-01-31" xmlns:othliab="http://fasb.org/dis/othliab/2019-01-31" xmlns:soi-egm="http://fasb.org/stm/soi-egm/2019-01-31" xmlns:schedoi-shorthold="http://fasb.org/dis/schedoi-shorthold/2019-01-31" xmlns:soi="http://fasb.org/stm/soi/2019-01-31" xmlns:diha="http://fasb.org/dis/diha/2019-01-31" xmlns:debt="http://fasb.org/dis/debt/2019-01-31" xmlns:schedoi-hold="http://fasb.org/dis/schedoi-hold/2019-01-31" xmlns:num="http://www.xbrl.org/dtr/type/numeric" xmlns:invest-std="http://xbrl.sec.gov/invest-std/2013-01-31" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:us-gaap-ent-std="http://fasb.org/us-gaap-ent-std/2019-01-31" xmlns:bc="http://fasb.org/dis/bc/2019-01-31" xmlns:sic-ent-all="http://xbrl.sec.gov/sic-ent-all/2011-01-31" xmlns:exch-ent-std="http://xbrl.sec.gov/exch-ent-std/2019-01-31" xmlns:invest-ent-all="http://xbrl.sec.gov/invest-ent-all/2013-01-31" xmlns:rcc="http://fasb.org/dis/rcc/2019-01-31" xmlns:rd="http://fasb.org/dis/rd/2019-01-31" xmlns:sfp-ucreo="http://fasb.org/stm/sfp-ucreo/2019-01-31" xmlns:eui="http://fasb.org/dis/eui/2019-01-31" xmlns:dei="http://xbrl.sec.gov/dei/2019-01-31" xmlns:ap="http://fasb.org/dis/ap/2019-01-31" xmlns:soi-reit="http://fasb.org/stm/soi-reit/2019-01-31" xmlns:fs-mort="http://fasb.org/dis/fs-mort/2019-01-31" xmlns:sec-reins="http://fasb.org/dis/sec-reins/2019-01-31" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:sec-cndfir="http://fasb.org/dis/sec-cndfir/2019-01-31" xmlns:sr="http://fasb.org/dis/sr/2019-01-31" xmlns:currency-all="http://xbrl.sec.gov/currency-all/2019-01-31" xmlns:scf-dbo="http://fasb.org/stm/scf-dbo/2019-01-31" xmlns:fs-fhlb="http://fasb.org/dis/fs-fhlb/2019-01-31" xmlns:crcpb="http://fasb.org/dis/crcpb/2019-01-31" xmlns:dei-ent-std="http://xbrl.sec.gov/dei-ent-std/2019-01-31" xmlns:us-types="http://fasb.org/us-types/2019-01-31" xmlns:scf-inv="http://fasb.org/stm/scf-inv/2019-01-31" xmlns:scf-indira="http://fasb.org/stm/scf-indira/2019-01-31" xmlns:bsoff="http://fasb.org/dis/bsoff/2019-01-31" xmlns:exch-ent-all="http://xbrl.sec.gov/exch-ent-all/2019-01-31" xmlns:oi="http://fasb.org/dis/oi/2019-01-31" xmlns:soi-indira="http://fasb.org/stm/soi-indira/2019-01-31" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:schedoi-otsh="http://fasb.org/dis/schedoi-otsh/2019-01-31" xmlns:sfp-dbo="http://fasb.org/stm/sfp-dbo/2019-01-31" xmlns:cc="http://fasb.org/dis/cc/2019-01-31" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:crcsbp="http://fasb.org/dis/crcsbp/2019-01-31" xmlns:disops="http://fasb.org/dis/disops/2019-01-31" xmlns:reference="http://www.xbrl.org/2009/role/reference" xmlns:cn-part="http://fasb.org/cn-part/2019-01-31" xmlns:us-gaap="http://fasb.org/us-gaap/2019-01-31" xmlns:srt-roles="http://fasb.org/srt-roles/2019-01-31" xmlns:country-std="http://xbrl.sec.gov/country-std/2017-01-31" xmlns:net="http://www.xbrl.org/2009/role/net" xmlns:scf-indir="http://fasb.org/stm/scf-indir/2019-01-31" xmlns:kalu="http://www.kaiseraluminum.com/20191030" xmlns:rlnro="http://fasb.org/dis/rlnro/2019-01-31" xmlns:ts="http://fasb.org/dis/ts/2019-01-31" xmlns:us-gaap-std="http://fasb.org/us-gaap-std/2019-01-31" xmlns:naics-ent-all="http://xbrl.sec.gov/naics-ent-all/2017-01-31" xmlns:ref="http://www.xbrl.org/2006/ref" xmlns:scf-dir="http://fasb.org/stm/scf-dir/2019-01-31" xmlns:dei-std="http://xbrl.sec.gov/dei-std/2019-01-31" xmlns:ni="http://fasb.org/dis/ni/2019-01-31" xmlns:sec-mort="http://fasb.org/dis/sec-mort/2019-01-31" xmlns:fifvd="http://fasb.org/dis/fifvd/2019-01-31" xmlns:otherexp="http://fasb.org/dis/otherexp/2019-01-31" xmlns:scf-re="http://fasb.org/stm/scf-re/2019-01-31" xmlns:sec-vq="http://fasb.org/dis/sec-vq/2019-01-31" xmlns:sec-sum="http://fasb.org/dis/sec-sum/2019-01-31" xmlns:exch-std="http://xbrl.sec.gov/exch-std/2019-01-31" xmlns:invest="http://xbrl.sec.gov/invest/2013-01-31" xmlns:ir="http://fasb.org/dis/ir/2019-01-31" xmlns:sheci="http://fasb.org/stm/sheci/2019-01-31" xmlns:foct="http://fasb.org/dis/foct/2019-01-31" xmlns:soc="http://fasb.org/stm/soc/2019-01-31" xmlns:scf-sbo="http://fasb.org/stm/scf-sbo/2019-01-31" xmlns:inctax="http://fasb.org/dis/inctax/2019-01-31" xmlns:ppe="http://fasb.org/dis/ppe/2019-01-31" xmlns:country-all="http://xbrl.sec.gov/country-all/2017-01-31" xmlns:ixt-sec="http://www.sec.gov/inlineXBRL/transformation/2015-08-31" xmlns:con="http://fasb.org/dis/con/2019-01-31" xmlns:sic-ent-std="http://xbrl.sec.gov/sic-ent-std/2011-01-31" xmlns:ixt="http://www.xbrl.org/inlineXBRL/transformation/2015-02-26" xmlns:invest-ent-std="http://xbrl.sec.gov/invest-ent-std/2013-01-31" xmlns:fs-ins="http://fasb.org/dis/fs-ins/2019-01-31" xmlns:eps="http://fasb.org/dis/eps/2019-01-31" xmlns:stpr="http://xbrl.sec.gov/stpr/2018-01-31" xmlns:iago="http://fasb.org/dis/iago/2019-01-31" xmlns:pay="http://fasb.org/dis/pay/2019-01-31" xmlns:sic="http://xbrl.sec.gov/sic/2011-01-31" xmlns:tin-part="http://fasb.org/tin-part/2019-01-31" xmlns:acec="http://fasb.org/dis/acec/2019-01-31" xmlns:us-gaap-entryPoint-all="http://fasb.org/us-gaap-entryPoint-all/2019-01-31" xmlns:nt="http://fasb.org/dis/nt/2019-01-31" xmlns:spc="http://fasb.org/stm/spc/2019-01-31" xmlns:exch-all="http://xbrl.sec.gov/exch-all/2019-01-31" xmlns:ides="http://fasb.org/dis/ides/2019-01-31" xmlns:sec-supins="http://fasb.org/dis/sec-supins/2019-01-31" xmlns:sic-all="http://xbrl.sec.gov/sic-all/2011-01-31" xmlns:xl="http://www.xbrl.org/2003/XLink" xmlns:regop="http://fasb.org/dis/regop/2019-01-31" xmlns:sfp-cls="http://fasb.org/stm/sfp-cls/2019-01-31" xmlns:com="http://fasb.org/stm/com/2019-01-31" xmlns:soi-re="http://fasb.org/stm/soi-re/2019-01-31" xmlns:crcgen="http://fasb.org/dis/crcgen/2019-01-31" xmlns:exch-ent-dep="http://xbrl.sec.gov/exch-ent-dep/2019-01-31" xmlns:negated="http://www.xbrl.org/2009/role/negated" xmlns:ei="http://fasb.org/dis/ei/2019-01-31" xmlns:xbrldt="http://xbrl.org/2005/xbrldt">
	<head>
		<meta http-equiv="Content-Type" content="text/html" />
		<title>Document</title>
	</head>
	<body style="font-family:Times New Roman;font-size:10pt;">
<div style="display:none"><ix:header><ix:hidden><ix:nonNumeric contextRef="D2019Q4SD" name="dei:AmendmentFlag" id="Fact-D0E73C012AD15962A742B677922BB1CC-wk-Fact-D0E73C012AD15962A742B677922BB1CC" format="ixt:booleantrue">true</ix:nonNumeric><ix:nonNumeric contextRef="D2019Q4SD" name="dei:EntityCentralIndexKey" id="Fact-9F411B2A277F562A9F746EF3DF74D825-wk-Fact-9F411B2A277F562A9F746EF3DF74D825">0000811596</ix:nonNumeric></ix:hidden><ix:references><link:schemaRef xlink:href="kalu-20191030.xsd" xlink:type="simple"></link:schemaRef></ix:references><ix:resources><xbrli:context id="D2019Q4SD">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0000811596</xbrli:identifier>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:startDate>2019-10-30</xbrli:startDate>
			<xbrli:endDate>2019-10-30</xbrli:endDate>
		</xbrli:period>
	</xbrli:context></ix:resources></ix:header></div><div><a id="s339F9A69598E567C8EFB6DAFA72CD4A3"></a></div><div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></div><div><br/></div><div style="line-height:120%;text-align:left;-sec-extract:summary;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="1"></td></tr><tr><td style="width:100%;"></td></tr><tr><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:2px solid #000000;"><div style="overflow:hidden;height:5px;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td></tr></table></div></div><div style="line-height:120%;text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:center;font-size:11pt;"><span style="font-family:inherit;font-size:11pt;font-weight:bold;">UNITED STATES</span></div><div style="line-height:120%;padding-top:16px;text-align:center;font-size:11pt;"><span style="font-family:inherit;font-size:11pt;font-weight:bold;">SECURITIES AND EXCHANGE COMMISSION</span></div><div style="line-height:120%;text-align:center;font-size:11pt;"><span style="font-family:inherit;font-size:11pt;font-weight:bold;">Washington, D.C. 20549</span></div><div style="line-height:120%;text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:center;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;font-weight:bold;">FORM </span><span><ix:nonNumeric id="d184471464e80-wk-Fact-7BFF39F0055F4E6600841F1698FB9D68" name="dei:DocumentType" contextRef="D2019Q4SD"><span style="font-size:12pt;font-weight:bold;">8-K/A</span></ix:nonNumeric></span><span style="font-family:inherit;font-size:12pt;font-weight:bold;"> </span></div><div style="line-height:120%;text-align:center;font-size:11pt;"><span style="font-family:inherit;font-size:11pt;font-weight:bold;">Amendment No. 1 to </span></div><div style="line-height:120%;padding-top:16px;text-align:center;font-size:11pt;"><span style="font-family:inherit;font-size:11pt;font-weight:bold;">CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF</span></div><div style="line-height:120%;text-align:center;font-size:11pt;"><span style="font-family:inherit;font-size:11pt;font-weight:bold;">THE SECURITIES EXCHANGE ACT OF 1934</span></div><div style="line-height:120%;padding-top:16px;text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;">Date of Report (Date of Earliest Event Reported): </span><span style="font-family:inherit;font-size:10pt;font-weight:bold;"><span><span style="white-space:nowrap"><ix:nonNumeric id="d184471464e97-wk-Fact-3A2ACB4A49A359DC979CFE882F810049" name="dei:DocumentPeriodEndDate" contextRef="D2019Q4SD" format="ixt:datemonthdayyearen">October 30, 2019</ix:nonNumeric></span></span></span><span style="font-family:inherit;font-size:10pt;font-weight:bold;"> </span></div><div style="line-height:120%;padding-top:16px;text-align:center;font-size:20pt;"><span><ix:nonNumeric id="d184471464e103-wk-Fact-0199168390A953519E2BBD83A7FB2183" name="dei:EntityRegistrantName" contextRef="D2019Q4SD"><span style="font-size:20pt;font-weight:bold;">KAISER ALUMINUM CORPORATION</span></ix:nonNumeric></span><span style="font-family:inherit;font-size:20pt;font-weight:bold;"> </span></div><div style="line-height:120%;text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">(Exact Name of Registrant as Specified in its Charter)</span></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:683px;border-collapse:collapse;text-align:left;"><tr><td colspan="7"></td></tr><tr><td style="width:58px;"></td><td style="width:97px;"></td><td style="width:46px;"></td><td style="width:37px;"></td><td style="width:202px;"></td><td style="width:37px;"></td><td style="width:202px;"></td></tr><tr><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td></tr><tr><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;"><span><ix:nonNumeric id="d184471464e165-wk-Fact-85C9F4BCBE71566D8B5217A9806E3106" name="dei:EntityIncorporationStateCountryCode" contextRef="D2019Q4SD" format="ixt-sec:stateprovnameen">Delaware</ix:nonNumeric></span></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;"><span><ix:nonNumeric id="d184471464e185-wk-Fact-F6AACFDB7D2C5607A77DA6F6E851750D" name="dei:EntityFileNumber" contextRef="D2019Q4SD">1-09447</ix:nonNumeric></span></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;"><span><ix:nonNumeric id="d184471464e195-wk-Fact-379F3D2E2870557F893A6EC782F58F79" name="dei:EntityTaxIdentificationNumber" contextRef="D2019Q4SD">94-3030279</ix:nonNumeric></span></span></div></td></tr><tr><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">(State or Other Jurisdiction</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">(Commission</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">(I.R.S. Employer</span></div></td></tr><tr><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">of Incorporation)</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">File Number)</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Identification No.)</span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;"><span><ix:nonNumeric id="d184471464e314-wk-Fact-B13219DF2CDF5CAFB4012A780F44D5D5" name="dei:EntityAddressAddressLine1" contextRef="D2019Q4SD">27422 Portola Parkway,</ix:nonNumeric></span></span></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;"><span><ix:nonNumeric id="d184471464e324-wk-Fact-765BA1D7E7AF515AABBBD58DF9EE8D61" name="dei:EntityAddressAddressLine2" contextRef="D2019Q4SD">Suite&#160;200</ix:nonNumeric></span></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;"><span><ix:nonNumeric id="d184471464e350-wk-Fact-E54F763A403B54519160553092E1211F" name="dei:EntityAddressCityOrTown" contextRef="D2019Q4SD">Foothill Ranch,</ix:nonNumeric></span></span></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;"><span><ix:nonNumeric id="d184471464e355-wk-Fact-DB7CFA98DF125E39B3AF8786514F91AC" name="dei:EntityAddressStateOrProvince" contextRef="D2019Q4SD" format="ixt-sec:stateprovnameen">California</ix:nonNumeric></span></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;"><span><ix:nonNumeric id="d184471464e375-wk-Fact-F4127769BA8A5724A1C12C17497BBD6B" name="dei:EntityAddressPostalZipCode" contextRef="D2019Q4SD">92610-2831</ix:nonNumeric></span></span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td colspan="4" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">(Address of Principal Executive Offices)</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">(Zip Code)</span></div></td></tr></table></div></div><div style="line-height:120%;text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;">(</span><span><ix:nonNumeric id="d184471464e418-wk-Fact-4363ADA3A22A5F3EA1AB58A6ECBD02D8" name="dei:CityAreaCode" contextRef="D2019Q4SD"><span style="font-weight:bold;">949</span></ix:nonNumeric></span><span style="font-family:inherit;font-size:10pt;font-weight:bold;">)&#160;</span><span><ix:nonNumeric id="d184471464e423-wk-Fact-E43B30DFCC385ABABD2C612130EAE1C2" name="dei:LocalPhoneNumber" contextRef="D2019Q4SD"><span style="font-weight:bold;">614-1740</span></ix:nonNumeric></span><span style="font-family:inherit;font-size:10pt;font-weight:bold;"> </span></div><div style="line-height:120%;text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">(Registrant's telephone number, including area code)</span></div><div style="line-height:120%;text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;">Not Applicable </span></div><div style="line-height:120%;text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">(Former Name or Former Address, if Changed Since Last Report)</span></div><div style="line-height:120%;padding-top:8px;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:</span></div><div style="line-height:120%;padding-top:8px;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span><ix:nonNumeric id="d184471464e443-wk-Fact-A63C4110B6E95EFBAC6BBAE3DCC3E746" name="dei:WrittenCommunications" contextRef="D2019Q4SD" format="ixt-sec:boolballotbox">&#9744;</ix:nonNumeric></span></span><span style="font-family:inherit;font-size:10pt;"> Written communications pursuant to Rule&#160;425 under the Securities Act (17 CFR 230.425)</span></div><div style="line-height:120%;padding-top:8px;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span><ix:nonNumeric id="d184471464e449-wk-Fact-11C815C8BBA65A1BAFFA59C7088A0AE7" name="dei:SolicitingMaterial" contextRef="D2019Q4SD" format="ixt-sec:boolballotbox">&#9744;</ix:nonNumeric></span></span><span style="font-family:inherit;font-size:10pt;"> Soliciting material pursuant to Rule&#160;14a-12 under the Exchange Act (17 CFR 240.14a-12)</span></div><div style="line-height:120%;padding-top:8px;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span><ix:nonNumeric id="d184471464e454-wk-Fact-759C86E708F85E3A8EB9A86C4FF77637" name="dei:PreCommencementTenderOffer" contextRef="D2019Q4SD" format="ixt-sec:boolballotbox">&#9744;</ix:nonNumeric></span></span><span style="font-family:inherit;font-size:10pt;"> Pre-commencement communications pursuant to Rule&#160;14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</span></div><div style="line-height:120%;padding-top:8px;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span><ix:nonNumeric id="d184471464e459-wk-Fact-FAE301CC025C592A9ED18619FDE8E68A" name="dei:PreCommencementIssuerTenderOffer" contextRef="D2019Q4SD" format="ixt-sec:boolballotbox">&#9744;</ix:nonNumeric></span></span><span style="font-family:inherit;font-size:10pt;"> Pre-commencement communications pursuant to Rule&#160;13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Securities registered pursuant to Section 12(b) of the Act: </span></div><div style="line-height:120%;padding-top:8px;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="3"></td></tr><tr><td style="width:35%;"></td><td style="width:20%;"></td><td style="width:45%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;text-decoration:underline;">Title of each class</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;text-decoration:underline;">Trading symbol(s)</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;text-decoration:underline;">Name of each exchange on which registered</span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span><ix:nonNumeric id="d184471464e498-wk-Fact-7BF7AEF6AFD55320AF1E7919D49783CA" name="dei:Security12bTitle" contextRef="D2019Q4SD">Common Stock, par value $0.01 per share</ix:nonNumeric></span></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span><ix:nonNumeric id="d184471464e503-wk-Fact-26A59FB134DD5C67B69BE447FC49E9F8" name="dei:TradingSymbol" contextRef="D2019Q4SD">KALU</ix:nonNumeric></span></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span><ix:nonNumeric id="d184471464e508-wk-Fact-DE98EF9D80E154A69678A39E8B0A5CE5" name="dei:SecurityExchangeName" contextRef="D2019Q4SD" format="ixt-sec:exchnameen">Nasdaq Global Select Market</ix:nonNumeric></span></span></div></td></tr></table></div></div><div style="line-height:120%;padding-top:8px;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (17 CFR 230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR 240.12b-2).</span></div><div style="line-height:120%;padding-top:8px;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Emerging growth company </span><span style="font-family:inherit;font-size:10pt;"><span><ix:nonNumeric id="d184471464e516-wk-Fact-420E61AF003958F0A6930BF304E1CF4A" name="dei:EntityEmergingGrowthCompany" contextRef="D2019Q4SD" format="ixt-sec:boolballotbox">&#9744;</ix:nonNumeric></span></span><span style="font-family:inherit;font-size:10pt;"> </span></div><div style="line-height:120%;padding-top:13px;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standard provided pursuant to Section 13(a) of the Exchange Act. &#9744;</span></div><div style="line-height:120%;padding-top:1px;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:5pt;">&#160;</span><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="1"></td></tr><tr><td style="width:100%;"></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;"><div style="overflow:hidden;height:5px;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td></tr></table></div></div><div><br/></div><div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></div><hr style="page-break-after:always"></hr><div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></div><div><br/></div><div style="line-height:120%;padding-top:1px;text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;">EXPLANATORY NOTE</span></div><div style="line-height:120%;padding-top:1px;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Kaiser Aluminum Corporation is filing this Amendment No. 1 (this &#8220;Amendment&#8221;) to the Current Report on Form 8-K dated October 30, 2019 (the &#8220;Original 8-K&#8221;) to replace the Original 8-K in its entirety.</span><span style="font-family:inherit;font-size:10pt;"> </span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">This Amendment reports events as of the filing date of the Original 8-K and does not reflect events that may have occurred subsequent to the original filing date.</span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span><span style="font-family:inherit;font-size:10pt;font-weight:bold;">Item 7.01. Regulation FD Disclosure.</span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">On October 30, 2019, Kaiser Aluminum Corporation issued a press release announcing the entry of a credit agreement with Wells Fargo Bank, N.A., as administrative agent, and the other financial institutions party thereto. A copy of the press release is attached hereto as Exhibit 99.1.</span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">The information contained in the press release shall not be deemed to be &#8220;filed&#8221; for purposes of Section 18 of the Securities Exchange Act of 1934 (&#8220;Exchange Act&#8221;), or otherwise subject to liability of that section. In addition, this information shall not be incorporated by reference into any registration statement or other document filed under the Securities Act, or the Exchange Act, regardless of any general incorporation language in such filing, except as shall be expressly set forth by specific reference in the filing.</span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;">Item&#160;9.01. Financial Statements and Exhibits.</span></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="6"></td></tr><tr><td style="width:1%;"></td><td style="width:4%;"></td><td style="width:3%;"></td><td style="width:3%;"></td><td style="width:4%;"></td><td style="width:85%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">(d)</span></div></td><td colspan="4" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-style:italic;">Exhibits.</span></div></td></tr><tr><td colspan="4" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td></tr><tr><td colspan="4" style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Exhibit</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td></tr><tr><td colspan="4" style="vertical-align:top;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Number</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Description</span></div></td></tr><tr><td colspan="4" style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">99.1</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="font-size:10pt;"><a style="text-decoration:underline;color:#0000FF;-sec-extract:exhibit;" href="pressreleasedatedoctob.htm"><span style="font-family:inherit;font-size:10pt;">Press release dated October 30, 2019</span></a><span style="font-family:inherit;font-size:10pt;">.</span></div></td></tr><tr><td colspan="4" style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">101.INS</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">XBRL&#160;Instance&#160;Document&#160;-&#160;the&#160;instance&#160;document&#160;does&#160;not&#160;appear&#160;in&#160;the&#160;Interactive&#160;Data&#160;File because&#160;its&#160;XBRL&#160;tags&#160;are&#160;embedded&#160;within&#160;the&#160;Inline&#160;XBRL&#160;document.</span></div></td></tr><tr><td colspan="4" style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">101.SCH</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">XBRL Taxonomy Extension Schema.</span></div></td></tr><tr><td colspan="4" style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">101.CAL</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">XBRL Taxonomy Extension Calculation.</span></div></td></tr><tr><td colspan="4" style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">101.DEF</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">XBRL Taxonomy Extension Definition.</span></div></td></tr><tr><td colspan="4" style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">101.LAB</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">XBRL Taxonomy Extension Label.</span></div></td></tr><tr><td colspan="4" style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">101.PRE</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">XBRL Taxonomy Extension Presentation.</span></div></td></tr><tr><td colspan="4" style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">104</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101).</span></div><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr></table></div></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div><br/></div><div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></div><hr style="page-break-after:always"></hr><div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></div><div><br/></div><div style="line-height:120%;padding-top:24px;text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;">SIGNATURES</span></div><div style="line-height:120%;padding-top:8px;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;&#160;&#160;&#160;&#160;Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.</span></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="5"></td></tr><tr><td style="width:49%;"></td><td style="width:1%;"></td><td style="width:4%;"></td><td style="width:1%;"></td><td style="width:45%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">KAISER ALUMINUM CORPORATION</span></div><div style="font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">(Registrant)</span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">By:</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">/s/ Cherrie I. Tsai</span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;-sec-extract:summary;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">&#160;</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Cherrie I. Tsai</span></div><div style="font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Vice President, Deputy General Counsel and Corporate Secretary</span></div></td></tr></table></div></div><div style="line-height:120%;padding-top:16px;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Date: October 30, 2019</span></div><div style="line-height:120%;padding-top:1px;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div><br/></div><div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></div>	</body>
</html>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>pressreleasedatedoctob.htm
<DESCRIPTION>PRESS RELEASE DATED OCTOBER 30, 2019
<TEXT>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
	<head>
		<!-- Document created using Wdesk 1 -->
		<!-- Copyright 2019 Workiva -->
		<title>Exhibit</title>
	</head>
	<body style="font-family:Times New Roman;font-size:10pt;">
<div><a name="sbaebca7779774d28839211530dc71e39"></a></div><div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></div><div><br></div><div style="line-height:120%;text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Exhibit 99.1</font></div><div style="line-height:120%;text-align:left;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:12pt;"><font style="font-family:inherit;font-size:12pt;font-weight:bold;">Kaiser Aluminum Corporation Announces New Five-Year, $375 Million, </font></div><div style="line-height:120%;text-align:center;font-size:12pt;"><font style="font-family:inherit;font-size:12pt;font-weight:bold;">Senior Secured Revolving Credit Facility</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">FOOTHILL RANCH, Calif., October 30, 2019- Kaiser Aluminum Corporation (NASDAQ:KALU) today announced that it has entered into a $375 million, five-year senior secured revolving credit facility replacing its previously existing facility that was due to mature in December 2020. The new facility increases the lending commitment by $75 million and provides more favorable pricing and greater flexibility than the previous facility. As of the October 30, 2019 effective date, borrowing availability under the new facility, net of outstanding letters of credit, was approximately $353 million based upon a borrowing base of eligible accounts receivable and inventory and certain machinery and equipment. There are no borrowings under the revolving credit facility.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#8220;A key component of our business strategy is to maintain strong liquidity and financial flexibility that will continue to support ongoing growth and investment in our business and allow us to maintain our strong competitive position throughout the economic cycles of the end markets we serve,&#8221; said Jack A. Hockema, Chairman and Chief Executive Officer. &#8220;We are pleased that our lending banks continue to acknowledge our strong business model and prudent financial management and we appreciate their continued commitment and support.&#8221;</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Company Description</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Kaiser Aluminum Corporation, headquartered in Foothill Ranch, Calif., is a leading producer of semi-fabricated specialty</font><font style="font-family:inherit;font-size:10pt;color:#ff0000;">&#32;</font><font style="font-family:inherit;font-size:10pt;">aluminum products, serving customers worldwide with highly-engineered solutions for aerospace and high-strength, custom automotive, general engineering, and other industrial applications. The Company's North American facilities produce value-added sheet, plate, extrusions, rod, bar, tube, and wire products, adhering to traditions of quality, innovation, and service that have been key components of the culture since the Company was founded in 1946. The Company's stock is included in the Russell 2000&#174; index and the S&amp;P Small Cap 600&#174; index.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Available Information</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">For more information, please visit the Company's website at</font><font style="font-family:inherit;font-size:10pt;color:#0000ff;font-style:italic;">&#32;</font><font style="font-family:inherit;font-size:10pt;color:#0000ff;font-style:italic;text-decoration:underline;">www.kaiseraluminum.com</font><font style="font-family:inherit;font-size:10pt;color:#0000ff;font-style:italic;">. </font><font style="font-family:inherit;font-size:10pt;">The website includes a section for investor relations under which the Company provides notifications of news or announcements regarding its financial performance, including Securities and Exchange Commission (SEC) filings, investor events, and earnings and other press releases. In addition, all Company filings submitted to the SEC are available through a link to the section of the SEC's website at </font><font style="font-family:inherit;font-size:10pt;color:#0000ff;font-style:italic;text-decoration:underline;">www.sec.gov,</font><font style="font-family:inherit;font-size:10pt;font-style:italic;">&#32;</font><font style="font-family:inherit;font-size:10pt;">which includes: Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and Proxy Statements for the Company's annual stockholders' meetings, and other information statements as filed with the SEC. In addition, the Company provides a webcast of its quarterly earnings calls and certain events in which management participates or hosts with members of the investment community.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Forward-Looking Statements</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">This press release contains statements based on management&#8217;s current expectations, estimates and projections that constitute &#8220;forward-looking statements&#8221; within the meaning of the Private Securities Litigation Reform Act of 1995 involving known and unknown risks and uncertainties that may cause actual results, performance or achievements of the Company to be materially different from those expressed or implied. Kaiser Aluminum cautions that such forward-looking statements are not guarantees of future performance or events and involve significant risks and uncertainties and actual events may vary materially from those expressed or implied in the forward-looking statements as a result of various factors. These factors include: (a) the continuation of strong long-term demand growth for the Company&#8217;s aerospace, automotive and general engineering applications and improvement in the Company&#8217;s manufacturing efficiencies that could, among other things, impact the Company&#8217;s liquidity and financial flexibility; (b) the impact of business conditions and aluminum prices on eligible accounts receivable and inventory; (c) the ability of the Company to identify and successfully execute strategic capital investments and continuous improvement projects facilitating capacity and capability expansions, manufacturing cost efficiencies, increasing operating leverage, productivity improvements, product quality enhancements or other benefits anticipated by management, which, among other things, would be expected to allow the Company to maintain its strong competitive position throughout the economic cycles in the end markets the Company serves; and (d) other risk factors summarized in the Company's reports filed with the Securities and Exchange Commission, including the Company's Form 10-K for the year ended December&#160;31, 2018. </font></div><div><br></div><div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></div><hr style="page-break-after:always"><div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></div><div><br></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The Company undertakes no duty to update any forward-looking statement to conform the statement to actual results or changes in the Company's expectations.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="2"></td></tr><tr><td style="width:49%;"></td><td style="width:51%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Investor Relations and Public Relations Contact:</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Melinda C. Ellsworth</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Kaiser Aluminum Corporation</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">(949) 614-1757</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr></table></div></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:174%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:174%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><br></div><div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></div>	</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.SCH
<SEQUENCE>3
<FILENAME>kalu-20191030.xsd
<DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<xsd:schema attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.kaiseraluminum.com/20191030" xmlns:kalu="http://www.kaiseraluminum.com/20191030" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <xsd:import namespace="http://fasb.org/srt-types/2019-01-31" schemaLocation="http://xbrl.fasb.org/srt/2019/elts/srt-types-2019-01-31.xsd" />
  <xsd:import namespace="http://fasb.org/srt/2019-01-31" schemaLocation="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd" />
  <xsd:import namespace="http://fasb.org/us-gaap/2019-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd" />
  <xsd:import namespace="http://fasb.org/us-roles/2019-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2019/elts/us-roles-2019-01-31.xsd" />
  <xsd:import namespace="http://fasb.org/us-types/2019-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2019/elts/us-types-2019-01-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/arcrole/fact-explanatoryFact" schemaLocation="http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/role/negated" schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/role/net" schemaLocation="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/dtr/type/non-numeric" schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/dtr/type/numeric" schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd" />
  <xsd:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/country/2017-01-31" schemaLocation="https://xbrl.sec.gov/country/2017/country-2017-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/currency/2019-01-31" schemaLocation="https://xbrl.sec.gov/currency/2019/currency-2019-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/dei/2019-01-31" schemaLocation="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/exch/2019-01-31" schemaLocation="https://xbrl.sec.gov/exch/2019/exch-2019-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/invest/2013-01-31" schemaLocation="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/naics/2017-01-31" schemaLocation="http://xbrl.sec.gov/naics/2017/naics-2017-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/sic/2011-01-31" schemaLocation="http://xbrl.sec.gov/sic/2011/sic-2011-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/stpr/2018-01-31" schemaLocation="https://xbrl.sec.gov/stpr/2018/stpr-2018-01-31.xsd" />
  <xsd:annotation>
    <xsd:appinfo>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="kalu-20191030_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="kalu-20191030_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="kalu-20191030_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="kalu-20191030_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple" />
      <link:roleType id="CoverPageCoverPage" roleURI="http://www.kaiseraluminum.com/role/CoverPageCoverPage">
        <link:definition>0001000 - Document - Cover Page Cover Page</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xsd:appinfo>
  </xsd:annotation>
  <xsd:element abstract="true" id="kalu_CoverPageAbstract" name="CoverPageAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
</xsd:schema>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.CAL
<SEQUENCE>4
<FILENAME>kalu-20191030_cal.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<link:linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <link:roleRef roleURI="http://www.kaiseraluminum.com/role/CoverPageCoverPage" xlink:href="kalu-20191030.xsd#CoverPageCoverPage" xlink:type="simple" />
  <link:calculationLink xlink:role="http://www.kaiseraluminum.com/role/CoverPageCoverPage" xlink:type="extended" />
</link:linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.DEF
<SEQUENCE>5
<FILENAME>kalu-20191030_def.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<link:linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <link:roleRef roleURI="http://www.kaiseraluminum.com/role/CoverPageCoverPage" xlink:href="kalu-20191030.xsd#CoverPageCoverPage" xlink:type="simple" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all" xlink:type="simple" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default" xlink:type="simple" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain" xlink:type="simple" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member" xlink:type="simple" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension" xlink:type="simple" />
  <link:definitionLink xlink:role="http://www.kaiseraluminum.com/role/CoverPageCoverPage" xlink:type="extended" />
</link:linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.LAB
<SEQUENCE>6
<FILENAME>kalu-20191030_lab.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<link:linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodStartLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/netLabel" xlink:href="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd#netLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedNetLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedNetLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTerseLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodEndLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel" xlink:type="simple" />
  <link:labelLink xlink:role="http://www.xbrl.org/2003/role/link" xlink:type="extended">
    <link:label id="lab_kalu_CoverPageAbstract_79905243E42090F6246045F284E2DFC3_label_en-US" xlink:label="lab_kalu_CoverPageAbstract_DF1BEEE95D7B56139C0DA41E7AA09C11" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cover Page [Abstract]</link:label>
    <link:label id="lab_kalu_CoverPageAbstract_79905243E42090F6246045F284E2DFC3_documentation_en-US" xlink:label="lab_kalu_CoverPageAbstract_DF1BEEE95D7B56139C0DA41E7AA09C11" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Cover Page</link:label>
    <link:loc xlink:href="kalu-20191030.xsd#kalu_CoverPageAbstract" xlink:label="loc_kalu_CoverPageAbstract_DF1BEEE95D7B56139C0DA41E7AA09C11" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_kalu_CoverPageAbstract_DF1BEEE95D7B56139C0DA41E7AA09C11" xlink:to="lab_kalu_CoverPageAbstract_DF1BEEE95D7B56139C0DA41E7AA09C11" xlink:type="arc" />
    <link:label id="lab_dei_DocumentType_95F640B68CAEA9415E0645F284E2C8D2_terseLabel_en-US" xlink:label="lab_dei_DocumentType_3E681FF96688501F8CB398EB13A15E18" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Type</link:label>
    <link:label id="lab_dei_DocumentType_95F640B68CAEA9415E0645F284E2C8D2_label_en-US" xlink:label="lab_dei_DocumentType_3E681FF96688501F8CB398EB13A15E18" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Type</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentType" xlink:label="loc_dei_DocumentType_3E681FF96688501F8CB398EB13A15E18" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentType_3E681FF96688501F8CB398EB13A15E18" xlink:to="lab_dei_DocumentType_3E681FF96688501F8CB398EB13A15E18" xlink:type="arc" />
    <link:label id="lab_dei_DocumentPeriodEndDate_06623C51C27C3A4D01FA45F284E27186_terseLabel_en-US" xlink:label="lab_dei_DocumentPeriodEndDate_01327DDA174E52E4B05BB5E109643301" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Period End Date</link:label>
    <link:label id="lab_dei_DocumentPeriodEndDate_06623C51C27C3A4D01FA45F284E27186_label_en-US" xlink:label="lab_dei_DocumentPeriodEndDate_01327DDA174E52E4B05BB5E109643301" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Period End Date</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentPeriodEndDate" xlink:label="loc_dei_DocumentPeriodEndDate_01327DDA174E52E4B05BB5E109643301" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentPeriodEndDate_01327DDA174E52E4B05BB5E109643301" xlink:to="lab_dei_DocumentPeriodEndDate_01327DDA174E52E4B05BB5E109643301" xlink:type="arc" />
    <link:label id="lab_dei_EntityRegistrantName_43A213E05F071E2FA1ED45F284E2D8AC_terseLabel_en-US" xlink:label="lab_dei_EntityRegistrantName_8BCBB2E5900D5D98BC5BA724B5B50B69" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Registrant Name</link:label>
    <link:label id="lab_dei_EntityRegistrantName_43A213E05F071E2FA1ED45F284E2D8AC_label_en-US" xlink:label="lab_dei_EntityRegistrantName_8BCBB2E5900D5D98BC5BA724B5B50B69" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Registrant Name</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityRegistrantName" xlink:label="loc_dei_EntityRegistrantName_8BCBB2E5900D5D98BC5BA724B5B50B69" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityRegistrantName_8BCBB2E5900D5D98BC5BA724B5B50B69" xlink:to="lab_dei_EntityRegistrantName_8BCBB2E5900D5D98BC5BA724B5B50B69" xlink:type="arc" />
    <link:label id="lab_dei_EntityIncorporationStateCountryCode_957F7533DE09FE526F9545F284E22DC4_terseLabel_en-US" xlink:label="lab_dei_EntityIncorporationStateCountryCode_2C2BD160E17E57F88A2D3208F5407E70" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Incorporation, State or Country Code</link:label>
    <link:label id="lab_dei_EntityIncorporationStateCountryCode_957F7533DE09FE526F9545F284E22DC4_label_en-US" xlink:label="lab_dei_EntityIncorporationStateCountryCode_2C2BD160E17E57F88A2D3208F5407E70" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Incorporation, State or Country Code</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityIncorporationStateCountryCode" xlink:label="loc_dei_EntityIncorporationStateCountryCode_2C2BD160E17E57F88A2D3208F5407E70" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityIncorporationStateCountryCode_2C2BD160E17E57F88A2D3208F5407E70" xlink:to="lab_dei_EntityIncorporationStateCountryCode_2C2BD160E17E57F88A2D3208F5407E70" xlink:type="arc" />
    <link:label id="lab_dei_EntityFileNumber_BE0A0678D34A047FD29D45F284E20B3B_terseLabel_en-US" xlink:label="lab_dei_EntityFileNumber_4765397199E95C48903F71011AC317FE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity File Number</link:label>
    <link:label id="lab_dei_EntityFileNumber_BE0A0678D34A047FD29D45F284E20B3B_label_en-US" xlink:label="lab_dei_EntityFileNumber_4765397199E95C48903F71011AC317FE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity File Number</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityFileNumber" xlink:label="loc_dei_EntityFileNumber_4765397199E95C48903F71011AC317FE" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityFileNumber_4765397199E95C48903F71011AC317FE" xlink:to="lab_dei_EntityFileNumber_4765397199E95C48903F71011AC317FE" xlink:type="arc" />
    <link:label id="lab_dei_EntityTaxIdentificationNumber_B887F45CFF0E1A851A6145F284E22CCB_terseLabel_en-US" xlink:label="lab_dei_EntityTaxIdentificationNumber_68BB78E6C01656FF803950469E40A3B4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Tax Identification Number</link:label>
    <link:label id="lab_dei_EntityTaxIdentificationNumber_B887F45CFF0E1A851A6145F284E22CCB_label_en-US" xlink:label="lab_dei_EntityTaxIdentificationNumber_68BB78E6C01656FF803950469E40A3B4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Tax Identification Number</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityTaxIdentificationNumber" xlink:label="loc_dei_EntityTaxIdentificationNumber_68BB78E6C01656FF803950469E40A3B4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityTaxIdentificationNumber_68BB78E6C01656FF803950469E40A3B4" xlink:to="lab_dei_EntityTaxIdentificationNumber_68BB78E6C01656FF803950469E40A3B4" xlink:type="arc" />
    <link:label id="lab_dei_EntityAddressAddressLine1_18849D703466937B9AF845F284E2C7C9_terseLabel_en-US" xlink:label="lab_dei_EntityAddressAddressLine1_9A28FD837C3055D6A9A71ADFCF4CC235" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Address, Address Line One</link:label>
    <link:label id="lab_dei_EntityAddressAddressLine1_18849D703466937B9AF845F284E2C7C9_label_en-US" xlink:label="lab_dei_EntityAddressAddressLine1_9A28FD837C3055D6A9A71ADFCF4CC235" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Address, Address Line One</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressAddressLine1" xlink:label="loc_dei_EntityAddressAddressLine1_9A28FD837C3055D6A9A71ADFCF4CC235" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressAddressLine1_9A28FD837C3055D6A9A71ADFCF4CC235" xlink:to="lab_dei_EntityAddressAddressLine1_9A28FD837C3055D6A9A71ADFCF4CC235" xlink:type="arc" />
    <link:label id="lab_dei_EntityAddressAddressLine2_47065230440B5E21773645F284E22067_terseLabel_en-US" xlink:label="lab_dei_EntityAddressAddressLine2_118DE2BDB28E53C38644D3F2E8652C2E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Address, Address Line Two</link:label>
    <link:label id="lab_dei_EntityAddressAddressLine2_47065230440B5E21773645F284E22067_label_en-US" xlink:label="lab_dei_EntityAddressAddressLine2_118DE2BDB28E53C38644D3F2E8652C2E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Address, Address Line Two</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressAddressLine2" xlink:label="loc_dei_EntityAddressAddressLine2_118DE2BDB28E53C38644D3F2E8652C2E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressAddressLine2_118DE2BDB28E53C38644D3F2E8652C2E" xlink:to="lab_dei_EntityAddressAddressLine2_118DE2BDB28E53C38644D3F2E8652C2E" xlink:type="arc" />
    <link:label id="lab_dei_EntityAddressCityOrTown_5FF007E5C78F6FE3745645F284E24B71_terseLabel_en-US" xlink:label="lab_dei_EntityAddressCityOrTown_2B0BD67ED4F55940A3D086D8FC83B49D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Address, City or Town</link:label>
    <link:label id="lab_dei_EntityAddressCityOrTown_5FF007E5C78F6FE3745645F284E24B71_label_en-US" xlink:label="lab_dei_EntityAddressCityOrTown_2B0BD67ED4F55940A3D086D8FC83B49D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Address, City or Town</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressCityOrTown" xlink:label="loc_dei_EntityAddressCityOrTown_2B0BD67ED4F55940A3D086D8FC83B49D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressCityOrTown_2B0BD67ED4F55940A3D086D8FC83B49D" xlink:to="lab_dei_EntityAddressCityOrTown_2B0BD67ED4F55940A3D086D8FC83B49D" xlink:type="arc" />
    <link:label id="lab_dei_EntityAddressStateOrProvince_843C543D3EB3BED0DC5345F284E20010_terseLabel_en-US" xlink:label="lab_dei_EntityAddressStateOrProvince_849693DCC9065859A22383B0C685E7D3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Address, State or Province</link:label>
    <link:label id="lab_dei_EntityAddressStateOrProvince_843C543D3EB3BED0DC5345F284E20010_label_en-US" xlink:label="lab_dei_EntityAddressStateOrProvince_849693DCC9065859A22383B0C685E7D3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Address, State or Province</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressStateOrProvince" xlink:label="loc_dei_EntityAddressStateOrProvince_849693DCC9065859A22383B0C685E7D3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressStateOrProvince_849693DCC9065859A22383B0C685E7D3" xlink:to="lab_dei_EntityAddressStateOrProvince_849693DCC9065859A22383B0C685E7D3" xlink:type="arc" />
    <link:label id="lab_dei_EntityAddressPostalZipCode_1A5D63087EC4AB95AF2F45F284E212E4_terseLabel_en-US" xlink:label="lab_dei_EntityAddressPostalZipCode_43DACD63271A5BE5BBD6EE77A70F7A5D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Address, Postal Zip Code</link:label>
    <link:label id="lab_dei_EntityAddressPostalZipCode_1A5D63087EC4AB95AF2F45F284E212E4_label_en-US" xlink:label="lab_dei_EntityAddressPostalZipCode_43DACD63271A5BE5BBD6EE77A70F7A5D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Address, Postal Zip Code</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressPostalZipCode" xlink:label="loc_dei_EntityAddressPostalZipCode_43DACD63271A5BE5BBD6EE77A70F7A5D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressPostalZipCode_43DACD63271A5BE5BBD6EE77A70F7A5D" xlink:to="lab_dei_EntityAddressPostalZipCode_43DACD63271A5BE5BBD6EE77A70F7A5D" xlink:type="arc" />
    <link:label id="lab_dei_CityAreaCode_D3002593AECD385DD85245F284E2EC2B_terseLabel_en-US" xlink:label="lab_dei_CityAreaCode_10771B6329B35BFEBC49E3BBAFC0B74E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">City Area Code</link:label>
    <link:label id="lab_dei_CityAreaCode_D3002593AECD385DD85245F284E2EC2B_label_en-US" xlink:label="lab_dei_CityAreaCode_10771B6329B35BFEBC49E3BBAFC0B74E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">City Area Code</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_CityAreaCode" xlink:label="loc_dei_CityAreaCode_10771B6329B35BFEBC49E3BBAFC0B74E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CityAreaCode_10771B6329B35BFEBC49E3BBAFC0B74E" xlink:to="lab_dei_CityAreaCode_10771B6329B35BFEBC49E3BBAFC0B74E" xlink:type="arc" />
    <link:label id="lab_dei_LocalPhoneNumber_19358A644D131E7052BE45F284E28AF8_terseLabel_en-US" xlink:label="lab_dei_LocalPhoneNumber_16F7CFA3800E5477B157F7775E80A6B9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Local Phone Number</link:label>
    <link:label id="lab_dei_LocalPhoneNumber_19358A644D131E7052BE45F284E28AF8_label_en-US" xlink:label="lab_dei_LocalPhoneNumber_16F7CFA3800E5477B157F7775E80A6B9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Local Phone Number</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_LocalPhoneNumber" xlink:label="loc_dei_LocalPhoneNumber_16F7CFA3800E5477B157F7775E80A6B9" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_LocalPhoneNumber_16F7CFA3800E5477B157F7775E80A6B9" xlink:to="lab_dei_LocalPhoneNumber_16F7CFA3800E5477B157F7775E80A6B9" xlink:type="arc" />
    <link:label id="lab_dei_WrittenCommunications_CEC8314F05D8D0AC022245F284F18B84_terseLabel_en-US" xlink:label="lab_dei_WrittenCommunications_C4FB1FA7C2E35EEE89EBD3883C29E380" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Written Communications</link:label>
    <link:label id="lab_dei_WrittenCommunications_CEC8314F05D8D0AC022245F284F18B84_label_en-US" xlink:label="lab_dei_WrittenCommunications_C4FB1FA7C2E35EEE89EBD3883C29E380" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Written Communications</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_WrittenCommunications" xlink:label="loc_dei_WrittenCommunications_C4FB1FA7C2E35EEE89EBD3883C29E380" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_WrittenCommunications_C4FB1FA7C2E35EEE89EBD3883C29E380" xlink:to="lab_dei_WrittenCommunications_C4FB1FA7C2E35EEE89EBD3883C29E380" xlink:type="arc" />
    <link:label id="lab_dei_SolicitingMaterial_0215C1F42416C8A791D345F284F1A649_terseLabel_en-US" xlink:label="lab_dei_SolicitingMaterial_BE085AA5097452CC9EBD7FB525ACB4FD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Soliciting Material</link:label>
    <link:label id="lab_dei_SolicitingMaterial_0215C1F42416C8A791D345F284F1A649_label_en-US" xlink:label="lab_dei_SolicitingMaterial_BE085AA5097452CC9EBD7FB525ACB4FD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Soliciting Material</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_SolicitingMaterial" xlink:label="loc_dei_SolicitingMaterial_BE085AA5097452CC9EBD7FB525ACB4FD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_SolicitingMaterial_BE085AA5097452CC9EBD7FB525ACB4FD" xlink:to="lab_dei_SolicitingMaterial_BE085AA5097452CC9EBD7FB525ACB4FD" xlink:type="arc" />
    <link:label id="lab_dei_PreCommencementTenderOffer_0FB547F34C43A5C1957B45F284F12151_terseLabel_en-US" xlink:label="lab_dei_PreCommencementTenderOffer_66ADA1F167605651969159F1E9EF38B6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Pre-commencement Tender Offer</link:label>
    <link:label id="lab_dei_PreCommencementTenderOffer_0FB547F34C43A5C1957B45F284F12151_label_en-US" xlink:label="lab_dei_PreCommencementTenderOffer_66ADA1F167605651969159F1E9EF38B6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Pre-commencement Tender Offer</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_PreCommencementTenderOffer" xlink:label="loc_dei_PreCommencementTenderOffer_66ADA1F167605651969159F1E9EF38B6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_PreCommencementTenderOffer_66ADA1F167605651969159F1E9EF38B6" xlink:to="lab_dei_PreCommencementTenderOffer_66ADA1F167605651969159F1E9EF38B6" xlink:type="arc" />
    <link:label id="lab_dei_PreCommencementIssuerTenderOffer_2C422547229F54F68CEB45F284F197C5_terseLabel_en-US" xlink:label="lab_dei_PreCommencementIssuerTenderOffer_AD177861BAD757B0B9A084D674D6B4EE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Pre-commencement Issuer Tender Offer</link:label>
    <link:label id="lab_dei_PreCommencementIssuerTenderOffer_2C422547229F54F68CEB45F284F197C5_label_en-US" xlink:label="lab_dei_PreCommencementIssuerTenderOffer_AD177861BAD757B0B9A084D674D6B4EE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Pre-commencement Issuer Tender Offer</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_PreCommencementIssuerTenderOffer" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_AD177861BAD757B0B9A084D674D6B4EE" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_PreCommencementIssuerTenderOffer_AD177861BAD757B0B9A084D674D6B4EE" xlink:to="lab_dei_PreCommencementIssuerTenderOffer_AD177861BAD757B0B9A084D674D6B4EE" xlink:type="arc" />
    <link:label id="lab_dei_Security12bTitle_1557D77F535DB5940F9D45F284E283D4_terseLabel_en-US" xlink:label="lab_dei_Security12bTitle_4EE3AB14467A5C9EA9BB2AB3DB0511CB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Title of 12(b) Security</link:label>
    <link:label id="lab_dei_Security12bTitle_1557D77F535DB5940F9D45F284E283D4_label_en-US" xlink:label="lab_dei_Security12bTitle_4EE3AB14467A5C9EA9BB2AB3DB0511CB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Title of 12(b) Security</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_Security12bTitle" xlink:label="loc_dei_Security12bTitle_4EE3AB14467A5C9EA9BB2AB3DB0511CB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_Security12bTitle_4EE3AB14467A5C9EA9BB2AB3DB0511CB" xlink:to="lab_dei_Security12bTitle_4EE3AB14467A5C9EA9BB2AB3DB0511CB" xlink:type="arc" />
    <link:label id="lab_dei_TradingSymbol_9D99206BF18AF12EC1DB45F284F19D11_terseLabel_en-US" xlink:label="lab_dei_TradingSymbol_CD422C2D28B55BB8A50D72F58E70D847" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Trading Symbol</link:label>
    <link:label id="lab_dei_TradingSymbol_9D99206BF18AF12EC1DB45F284F19D11_label_en-US" xlink:label="lab_dei_TradingSymbol_CD422C2D28B55BB8A50D72F58E70D847" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trading Symbol</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_TradingSymbol" xlink:label="loc_dei_TradingSymbol_CD422C2D28B55BB8A50D72F58E70D847" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_TradingSymbol_CD422C2D28B55BB8A50D72F58E70D847" xlink:to="lab_dei_TradingSymbol_CD422C2D28B55BB8A50D72F58E70D847" xlink:type="arc" />
    <link:label id="lab_dei_SecurityExchangeName_69E1AC0541A7DCEB6A7F45F284F1F782_terseLabel_en-US" xlink:label="lab_dei_SecurityExchangeName_782A8D4179E857EB80EF82CA7C2F8DFE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Security Exchange Name</link:label>
    <link:label id="lab_dei_SecurityExchangeName_69E1AC0541A7DCEB6A7F45F284F1F782_label_en-US" xlink:label="lab_dei_SecurityExchangeName_782A8D4179E857EB80EF82CA7C2F8DFE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Security Exchange Name</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_SecurityExchangeName" xlink:label="loc_dei_SecurityExchangeName_782A8D4179E857EB80EF82CA7C2F8DFE" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_SecurityExchangeName_782A8D4179E857EB80EF82CA7C2F8DFE" xlink:to="lab_dei_SecurityExchangeName_782A8D4179E857EB80EF82CA7C2F8DFE" xlink:type="arc" />
    <link:label id="lab_dei_EntityEmergingGrowthCompany_EB0C53BF1AD3B43BECB845F284F17451_terseLabel_en-US" xlink:label="lab_dei_EntityEmergingGrowthCompany_9A492CF4AE04528AA798D967EA9A8065" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Emerging Growth Company</link:label>
    <link:label id="lab_dei_EntityEmergingGrowthCompany_EB0C53BF1AD3B43BECB845F284F17451_label_en-US" xlink:label="lab_dei_EntityEmergingGrowthCompany_9A492CF4AE04528AA798D967EA9A8065" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Emerging Growth Company</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityEmergingGrowthCompany" xlink:label="loc_dei_EntityEmergingGrowthCompany_9A492CF4AE04528AA798D967EA9A8065" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityEmergingGrowthCompany_9A492CF4AE04528AA798D967EA9A8065" xlink:to="lab_dei_EntityEmergingGrowthCompany_9A492CF4AE04528AA798D967EA9A8065" xlink:type="arc" />
    <link:label id="lab_dei_EntityCentralIndexKey_CB9E8EACA8B5869469E045F284E231B3_terseLabel_en-US" xlink:label="lab_dei_EntityCentralIndexKey_1F97414340EF555F94DE68731198CAFB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Central Index Key</link:label>
    <link:label id="lab_dei_EntityCentralIndexKey_CB9E8EACA8B5869469E045F284E231B3_label_en-US" xlink:label="lab_dei_EntityCentralIndexKey_1F97414340EF555F94DE68731198CAFB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Central Index Key</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityCentralIndexKey" xlink:label="loc_dei_EntityCentralIndexKey_1F97414340EF555F94DE68731198CAFB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCentralIndexKey_1F97414340EF555F94DE68731198CAFB" xlink:to="lab_dei_EntityCentralIndexKey_1F97414340EF555F94DE68731198CAFB" xlink:type="arc" />
    <link:label id="lab_dei_AmendmentFlag_DBF211CF545502569F0345F284E25A50_terseLabel_en-US" xlink:label="lab_dei_AmendmentFlag_B8B86C4F85AB58EEA1ED02308DB56E45" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amendment Flag</link:label>
    <link:label id="lab_dei_AmendmentFlag_DBF211CF545502569F0345F284E25A50_label_en-US" xlink:label="lab_dei_AmendmentFlag_B8B86C4F85AB58EEA1ED02308DB56E45" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amendment Flag</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_AmendmentFlag" xlink:label="loc_dei_AmendmentFlag_B8B86C4F85AB58EEA1ED02308DB56E45" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_AmendmentFlag_B8B86C4F85AB58EEA1ED02308DB56E45" xlink:to="lab_dei_AmendmentFlag_B8B86C4F85AB58EEA1ED02308DB56E45" xlink:type="arc" />
  </link:labelLink>
</link:linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>7
<FILENAME>kalu-20191030_pre.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<link:linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <link:roleRef roleURI="http://www.kaiseraluminum.com/role/CoverPageCoverPage" xlink:href="kalu-20191030.xsd#CoverPageCoverPage" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedNetLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedNetLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodEndLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodStartLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTerseLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/netLabel" xlink:href="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd#netLabel" xlink:type="simple" />
  <link:presentationLink xlink:role="http://www.kaiseraluminum.com/role/CoverPageCoverPage" xlink:type="extended">
    <link:loc xlink:href="kalu-20191030.xsd#kalu_CoverPageAbstract" xlink:label="loc_kalu_CoverPageAbstract_DF1BEEE95D7B56139C0DA41E7AA09C11" xlink:type="locator" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentType" xlink:label="loc_dei_DocumentType_3E681FF96688501F8CB398EB13A15E18" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_kalu_CoverPageAbstract_DF1BEEE95D7B56139C0DA41E7AA09C11" xlink:to="loc_dei_DocumentType_3E681FF96688501F8CB398EB13A15E18" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentPeriodEndDate" xlink:label="loc_dei_DocumentPeriodEndDate_01327DDA174E52E4B05BB5E109643301" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_kalu_CoverPageAbstract_DF1BEEE95D7B56139C0DA41E7AA09C11" xlink:to="loc_dei_DocumentPeriodEndDate_01327DDA174E52E4B05BB5E109643301" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityRegistrantName" xlink:label="loc_dei_EntityRegistrantName_8BCBB2E5900D5D98BC5BA724B5B50B69" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_kalu_CoverPageAbstract_DF1BEEE95D7B56139C0DA41E7AA09C11" xlink:to="loc_dei_EntityRegistrantName_8BCBB2E5900D5D98BC5BA724B5B50B69" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityIncorporationStateCountryCode" xlink:label="loc_dei_EntityIncorporationStateCountryCode_2C2BD160E17E57F88A2D3208F5407E70" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_kalu_CoverPageAbstract_DF1BEEE95D7B56139C0DA41E7AA09C11" xlink:to="loc_dei_EntityIncorporationStateCountryCode_2C2BD160E17E57F88A2D3208F5407E70" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityFileNumber" xlink:label="loc_dei_EntityFileNumber_4765397199E95C48903F71011AC317FE" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_kalu_CoverPageAbstract_DF1BEEE95D7B56139C0DA41E7AA09C11" xlink:to="loc_dei_EntityFileNumber_4765397199E95C48903F71011AC317FE" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityTaxIdentificationNumber" xlink:label="loc_dei_EntityTaxIdentificationNumber_68BB78E6C01656FF803950469E40A3B4" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_kalu_CoverPageAbstract_DF1BEEE95D7B56139C0DA41E7AA09C11" xlink:to="loc_dei_EntityTaxIdentificationNumber_68BB78E6C01656FF803950469E40A3B4" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressAddressLine1" xlink:label="loc_dei_EntityAddressAddressLine1_9A28FD837C3055D6A9A71ADFCF4CC235" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_kalu_CoverPageAbstract_DF1BEEE95D7B56139C0DA41E7AA09C11" xlink:to="loc_dei_EntityAddressAddressLine1_9A28FD837C3055D6A9A71ADFCF4CC235" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressAddressLine2" xlink:label="loc_dei_EntityAddressAddressLine2_118DE2BDB28E53C38644D3F2E8652C2E" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_kalu_CoverPageAbstract_DF1BEEE95D7B56139C0DA41E7AA09C11" xlink:to="loc_dei_EntityAddressAddressLine2_118DE2BDB28E53C38644D3F2E8652C2E" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressCityOrTown" xlink:label="loc_dei_EntityAddressCityOrTown_2B0BD67ED4F55940A3D086D8FC83B49D" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_kalu_CoverPageAbstract_DF1BEEE95D7B56139C0DA41E7AA09C11" xlink:to="loc_dei_EntityAddressCityOrTown_2B0BD67ED4F55940A3D086D8FC83B49D" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressStateOrProvince" xlink:label="loc_dei_EntityAddressStateOrProvince_849693DCC9065859A22383B0C685E7D3" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_kalu_CoverPageAbstract_DF1BEEE95D7B56139C0DA41E7AA09C11" xlink:to="loc_dei_EntityAddressStateOrProvince_849693DCC9065859A22383B0C685E7D3" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressPostalZipCode" xlink:label="loc_dei_EntityAddressPostalZipCode_43DACD63271A5BE5BBD6EE77A70F7A5D" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_kalu_CoverPageAbstract_DF1BEEE95D7B56139C0DA41E7AA09C11" xlink:to="loc_dei_EntityAddressPostalZipCode_43DACD63271A5BE5BBD6EE77A70F7A5D" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_CityAreaCode" xlink:label="loc_dei_CityAreaCode_10771B6329B35BFEBC49E3BBAFC0B74E" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_kalu_CoverPageAbstract_DF1BEEE95D7B56139C0DA41E7AA09C11" xlink:to="loc_dei_CityAreaCode_10771B6329B35BFEBC49E3BBAFC0B74E" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_LocalPhoneNumber" xlink:label="loc_dei_LocalPhoneNumber_16F7CFA3800E5477B157F7775E80A6B9" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_kalu_CoverPageAbstract_DF1BEEE95D7B56139C0DA41E7AA09C11" xlink:to="loc_dei_LocalPhoneNumber_16F7CFA3800E5477B157F7775E80A6B9" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_WrittenCommunications" xlink:label="loc_dei_WrittenCommunications_C4FB1FA7C2E35EEE89EBD3883C29E380" xlink:type="locator" />
    <link:presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_kalu_CoverPageAbstract_DF1BEEE95D7B56139C0DA41E7AA09C11" xlink:to="loc_dei_WrittenCommunications_C4FB1FA7C2E35EEE89EBD3883C29E380" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_SolicitingMaterial" xlink:label="loc_dei_SolicitingMaterial_BE085AA5097452CC9EBD7FB525ACB4FD" xlink:type="locator" />
    <link:presentationArc order="15" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_kalu_CoverPageAbstract_DF1BEEE95D7B56139C0DA41E7AA09C11" xlink:to="loc_dei_SolicitingMaterial_BE085AA5097452CC9EBD7FB525ACB4FD" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_PreCommencementTenderOffer" xlink:label="loc_dei_PreCommencementTenderOffer_66ADA1F167605651969159F1E9EF38B6" xlink:type="locator" />
    <link:presentationArc order="16" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_kalu_CoverPageAbstract_DF1BEEE95D7B56139C0DA41E7AA09C11" xlink:to="loc_dei_PreCommencementTenderOffer_66ADA1F167605651969159F1E9EF38B6" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_PreCommencementIssuerTenderOffer" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_AD177861BAD757B0B9A084D674D6B4EE" xlink:type="locator" />
    <link:presentationArc order="17" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_kalu_CoverPageAbstract_DF1BEEE95D7B56139C0DA41E7AA09C11" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_AD177861BAD757B0B9A084D674D6B4EE" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_Security12bTitle" xlink:label="loc_dei_Security12bTitle_4EE3AB14467A5C9EA9BB2AB3DB0511CB" xlink:type="locator" />
    <link:presentationArc order="18" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_kalu_CoverPageAbstract_DF1BEEE95D7B56139C0DA41E7AA09C11" xlink:to="loc_dei_Security12bTitle_4EE3AB14467A5C9EA9BB2AB3DB0511CB" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_TradingSymbol" xlink:label="loc_dei_TradingSymbol_CD422C2D28B55BB8A50D72F58E70D847" xlink:type="locator" />
    <link:presentationArc order="19" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_kalu_CoverPageAbstract_DF1BEEE95D7B56139C0DA41E7AA09C11" xlink:to="loc_dei_TradingSymbol_CD422C2D28B55BB8A50D72F58E70D847" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_SecurityExchangeName" xlink:label="loc_dei_SecurityExchangeName_782A8D4179E857EB80EF82CA7C2F8DFE" xlink:type="locator" />
    <link:presentationArc order="20" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_kalu_CoverPageAbstract_DF1BEEE95D7B56139C0DA41E7AA09C11" xlink:to="loc_dei_SecurityExchangeName_782A8D4179E857EB80EF82CA7C2F8DFE" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityEmergingGrowthCompany" xlink:label="loc_dei_EntityEmergingGrowthCompany_9A492CF4AE04528AA798D967EA9A8065" xlink:type="locator" />
    <link:presentationArc order="21" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_kalu_CoverPageAbstract_DF1BEEE95D7B56139C0DA41E7AA09C11" xlink:to="loc_dei_EntityEmergingGrowthCompany_9A492CF4AE04528AA798D967EA9A8065" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityCentralIndexKey" xlink:label="loc_dei_EntityCentralIndexKey_1F97414340EF555F94DE68731198CAFB" xlink:type="locator" />
    <link:presentationArc order="22" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_kalu_CoverPageAbstract_DF1BEEE95D7B56139C0DA41E7AA09C11" xlink:to="loc_dei_EntityCentralIndexKey_1F97414340EF555F94DE68731198CAFB" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_AmendmentFlag" xlink:label="loc_dei_AmendmentFlag_B8B86C4F85AB58EEA1ED02308DB56E45" xlink:type="locator" />
    <link:presentationArc order="23" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_kalu_CoverPageAbstract_DF1BEEE95D7B56139C0DA41E7AA09C11" xlink:to="loc_dei_AmendmentFlag_B8B86C4F85AB58EEA1ED02308DB56E45" xlink:type="arc" />
  </link:presentationLink>
</link:linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>9
<FILENAME>R1.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.19.3</span><table class="report" border="0" cellspacing="2" id="idp6630324784">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Cover Page Cover Page<br></strong></div></th>
<th class="th"><div>Oct. 30, 2019</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_kalu_CoverPageAbstract', window );"><strong>Cover Page [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentType', window );">Document Type</a></td>
<td class="text">8-K/A<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentPeriodEndDate', window );">Document Period End Date</a></td>
<td class="text">Oct. 30,  2019<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityRegistrantName', window );">Entity Registrant Name</a></td>
<td class="text">KAISER ALUMINUM CORPORATION<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityIncorporationStateCountryCode', window );">Entity Incorporation, State or Country Code</a></td>
<td class="text">DE<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityFileNumber', window );">Entity File Number</a></td>
<td class="text">1-09447<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityTaxIdentificationNumber', window );">Entity Tax Identification Number</a></td>
<td class="text">94-3030279<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressAddressLine1', window );">Entity Address, Address Line One</a></td>
<td class="text">27422 Portola Parkway,<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressAddressLine2', window );">Entity Address, Address Line Two</a></td>
<td class="text">Suite&#160;200<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressCityOrTown', window );">Entity Address, City or Town</a></td>
<td class="text">Foothill Ranch,<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressStateOrProvince', window );">Entity Address, State or Province</a></td>
<td class="text">CA<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressPostalZipCode', window );">Entity Address, Postal Zip Code</a></td>
<td class="text">92610-2831<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_CityAreaCode', window );">City Area Code</a></td>
<td class="text">949<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_LocalPhoneNumber', window );">Local Phone Number</a></td>
<td class="text">614-1740<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_WrittenCommunications', window );">Written Communications</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_SolicitingMaterial', window );">Soliciting Material</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_PreCommencementTenderOffer', window );">Pre-commencement Tender Offer</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_PreCommencementIssuerTenderOffer', window );">Pre-commencement Issuer Tender Offer</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_Security12bTitle', window );">Title of 12(b) Security</a></td>
<td class="text">Common Stock, par value $0.01 per share<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_TradingSymbol', window );">Trading Symbol</a></td>
<td class="text">KALU<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_SecurityExchangeName', window );">Security Exchange Name</a></td>
<td class="text">NASDAQ<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityEmergingGrowthCompany', window );">Entity Emerging Growth Company</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityCentralIndexKey', window );">Entity Central Index Key</a></td>
<td class="text">0000811596<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_AmendmentFlag', window );">Amendment Flag</a></td>
<td class="text">true<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_AmendmentFlag">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_AmendmentFlag</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_CityAreaCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Area code of city</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_CityAreaCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentPeriodEndDate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented.  If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentPeriodEndDate</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:dateItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentType">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentType</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:submissionTypeItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressAddressLine1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Address Line 1 such as Attn, Building Name, Street Name</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressAddressLine1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressAddressLine2">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Address Line 2 such as Street or Suite number</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressAddressLine2</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressCityOrTown">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Name of the City or Town</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressCityOrTown</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressPostalZipCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Code for the postal or zip code</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressPostalZipCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressStateOrProvince">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Name of the state or province.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressStateOrProvince</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:stateOrProvinceItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityCentralIndexKey">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityCentralIndexKey</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:centralIndexKeyItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityEmergingGrowthCompany">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate if registrant meets the emerging growth company criteria.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityEmergingGrowthCompany</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityFileNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityFileNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:fileNumberItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityIncorporationStateCountryCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Two-character EDGAR code representing the state or country of incorporation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityIncorporationStateCountryCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:edgarStateCountryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityRegistrantName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityRegistrantName</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityTaxIdentificationNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityTaxIdentificationNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:employerIdItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_LocalPhoneNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Local phone number for entity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_LocalPhoneNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_PreCommencementIssuerTenderOffer">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 13e<br> -Subsection 4c<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_PreCommencementIssuerTenderOffer</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_PreCommencementTenderOffer">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 14d<br> -Subsection 2b<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_PreCommencementTenderOffer</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_Security12bTitle">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Title of a 12(b) registered security.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_Security12bTitle</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:securityTitleItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_SecurityExchangeName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Name of the Exchange on which a security is registered.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection d1-1<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_SecurityExchangeName</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:edgarExchangeCodeItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_SolicitingMaterial">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Section 14a<br> -Number 240<br> -Subsection 12<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_SolicitingMaterial</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_TradingSymbol">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Trading symbol of an instrument as listed on an exchange.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_TradingSymbol</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:tradingSymbolItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_WrittenCommunications">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Securities Act<br> -Number 230<br> -Section 425<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_WrittenCommunications</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_kalu_CoverPageAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Cover Page</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">kalu_CoverPageAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>kalu_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>JSON
<SEQUENCE>11
<FILENAME>MetaLinks.json
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
{
 "instance": {
  "amended2019creditagree.htm": {
   "axisCustom": 0,
   "axisStandard": 0,
   "contextCount": 1,
   "dts": {
    "calculationLink": {
     "local": [
      "kalu-20191030_cal.xml"
     ]
    },
    "definitionLink": {
     "local": [
      "kalu-20191030_def.xml"
     ],
     "remote": [
      "http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-eedm-def-2019-01-31.xml",
      "http://xbrl.fasb.org/srt/2019/elts/srt-eedm1-def-2019-01-31.xml"
     ]
    },
    "inline": {
     "local": [
      "amended2019creditagree.htm"
     ]
    },
    "labelLink": {
     "local": [
      "kalu-20191030_lab.xml"
     ],
     "remote": [
      "https://xbrl.sec.gov/dei/2019/dei-doc-2019-01-31.xml"
     ]
    },
    "presentationLink": {
     "local": [
      "kalu-20191030_pre.xml"
     ]
    },
    "referenceLink": {
     "remote": [
      "https://xbrl.sec.gov/dei/2019/dei-ref-2019-01-31.xml"
     ]
    },
    "schema": {
     "local": [
      "kalu-20191030.xsd"
     ],
     "remote": [
      "http://xbrl.fasb.org/srt/2019/elts/srt-types-2019-01-31.xsd",
      "http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xl-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xlink-2003-12-31.xsd",
      "http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd",
      "http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd",
      "http://www.xbrl.org/2006/ref-2006-02-27.xsd",
      "http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd",
      "http://www.xbrl.org/2005/xbrldt-2005.xsd",
      "http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd",
      "http://xbrl.fasb.org/us-gaap/2019/elts/us-roles-2019-01-31.xsd",
      "http://xbrl.fasb.org/srt/2019/elts/srt-roles-2019-01-31.xsd",
      "https://xbrl.sec.gov/country/2017/country-2017-01-31.xsd",
      "http://xbrl.fasb.org/us-gaap/2019/elts/us-types-2019-01-31.xsd",
      "http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd",
      "http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd",
      "http://www.xbrl.org/lrr/role/net-2009-12-16.xsd",
      "https://xbrl.sec.gov/currency/2019/currency-2019-01-31.xsd",
      "https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd",
      "https://xbrl.sec.gov/exch/2019/exch-2019-01-31.xsd",
      "http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd",
      "http://xbrl.sec.gov/naics/2017/naics-2017-01-31.xsd",
      "http://xbrl.sec.gov/sic/2011/sic-2011-01-31.xsd",
      "https://xbrl.sec.gov/stpr/2018/stpr-2018-01-31.xsd",
      "http://www.xbrl.org/lrr/role/deprecated-2009-12-16.xsd"
     ]
    }
   },
   "elementCount": 24,
   "entityCount": 1,
   "hidden": {
    "http://xbrl.sec.gov/dei/2019-01-31": 2,
    "total": 2
   },
   "keyCustom": 0,
   "keyStandard": 97,
   "memberCustom": 0,
   "memberStandard": 0,
   "nsprefix": "kalu",
   "nsuri": "http://www.kaiseraluminum.com/20191030",
   "report": {
    "R1": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "amended2019creditagree.htm",
      "contextRef": "D2019Q4SD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "dei:DocumentType",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "document",
     "isDefault": "true",
     "longName": "0001000 - Document - Cover Page Cover Page",
     "role": "http://www.kaiseraluminum.com/role/CoverPageCoverPage",
     "shortName": "Cover Page Cover Page",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "amended2019creditagree.htm",
      "contextRef": "D2019Q4SD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "dei:DocumentType",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    }
   },
   "segmentCount": 0,
   "tag": {
    "dei_AmendmentFlag": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.",
        "label": "Amendment Flag",
        "terseLabel": "Amendment Flag"
       }
      }
     },
     "localname": "AmendmentFlag",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.kaiseraluminum.com/role/CoverPageCoverPage"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_CityAreaCode": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Area code of city",
        "label": "City Area Code",
        "terseLabel": "City Area Code"
       }
      }
     },
     "localname": "CityAreaCode",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.kaiseraluminum.com/role/CoverPageCoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_DocumentPeriodEndDate": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented.  If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD.",
        "label": "Document Period End Date",
        "terseLabel": "Document Period End Date"
       }
      }
     },
     "localname": "DocumentPeriodEndDate",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.kaiseraluminum.com/role/CoverPageCoverPage"
     ],
     "xbrltype": "dateItemType"
    },
    "dei_DocumentType": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.",
        "label": "Document Type",
        "terseLabel": "Document Type"
       }
      }
     },
     "localname": "DocumentType",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.kaiseraluminum.com/role/CoverPageCoverPage"
     ],
     "xbrltype": "submissionTypeItemType"
    },
    "dei_EntityAddressAddressLine1": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Address Line 1 such as Attn, Building Name, Street Name",
        "label": "Entity Address, Address Line One",
        "terseLabel": "Entity Address, Address Line One"
       }
      }
     },
     "localname": "EntityAddressAddressLine1",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.kaiseraluminum.com/role/CoverPageCoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressAddressLine2": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Address Line 2 such as Street or Suite number",
        "label": "Entity Address, Address Line Two",
        "terseLabel": "Entity Address, Address Line Two"
       }
      }
     },
     "localname": "EntityAddressAddressLine2",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.kaiseraluminum.com/role/CoverPageCoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressCityOrTown": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Name of the City or Town",
        "label": "Entity Address, City or Town",
        "terseLabel": "Entity Address, City or Town"
       }
      }
     },
     "localname": "EntityAddressCityOrTown",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.kaiseraluminum.com/role/CoverPageCoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressPostalZipCode": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Code for the postal or zip code",
        "label": "Entity Address, Postal Zip Code",
        "terseLabel": "Entity Address, Postal Zip Code"
       }
      }
     },
     "localname": "EntityAddressPostalZipCode",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.kaiseraluminum.com/role/CoverPageCoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressStateOrProvince": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Name of the state or province.",
        "label": "Entity Address, State or Province",
        "terseLabel": "Entity Address, State or Province"
       }
      }
     },
     "localname": "EntityAddressStateOrProvince",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.kaiseraluminum.com/role/CoverPageCoverPage"
     ],
     "xbrltype": "stateOrProvinceItemType"
    },
    "dei_EntityCentralIndexKey": {
     "auth_ref": [
      "r5"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.",
        "label": "Entity Central Index Key",
        "terseLabel": "Entity Central Index Key"
       }
      }
     },
     "localname": "EntityCentralIndexKey",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.kaiseraluminum.com/role/CoverPageCoverPage"
     ],
     "xbrltype": "centralIndexKeyItemType"
    },
    "dei_EntityEmergingGrowthCompany": {
     "auth_ref": [
      "r5"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Indicate if registrant meets the emerging growth company criteria.",
        "label": "Entity Emerging Growth Company",
        "terseLabel": "Entity Emerging Growth Company"
       }
      }
     },
     "localname": "EntityEmergingGrowthCompany",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.kaiseraluminum.com/role/CoverPageCoverPage"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_EntityFileNumber": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.",
        "label": "Entity File Number",
        "terseLabel": "Entity File Number"
       }
      }
     },
     "localname": "EntityFileNumber",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.kaiseraluminum.com/role/CoverPageCoverPage"
     ],
     "xbrltype": "fileNumberItemType"
    },
    "dei_EntityIncorporationStateCountryCode": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Two-character EDGAR code representing the state or country of incorporation.",
        "label": "Entity Incorporation, State or Country Code",
        "terseLabel": "Entity Incorporation, State or Country Code"
       }
      }
     },
     "localname": "EntityIncorporationStateCountryCode",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.kaiseraluminum.com/role/CoverPageCoverPage"
     ],
     "xbrltype": "edgarStateCountryItemType"
    },
    "dei_EntityRegistrantName": {
     "auth_ref": [
      "r5"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.",
        "label": "Entity Registrant Name",
        "terseLabel": "Entity Registrant Name"
       }
      }
     },
     "localname": "EntityRegistrantName",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.kaiseraluminum.com/role/CoverPageCoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityTaxIdentificationNumber": {
     "auth_ref": [
      "r5"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.",
        "label": "Entity Tax Identification Number",
        "terseLabel": "Entity Tax Identification Number"
       }
      }
     },
     "localname": "EntityTaxIdentificationNumber",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.kaiseraluminum.com/role/CoverPageCoverPage"
     ],
     "xbrltype": "employerIdItemType"
    },
    "dei_LocalPhoneNumber": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Local phone number for entity.",
        "label": "Local Phone Number",
        "terseLabel": "Local Phone Number"
       }
      }
     },
     "localname": "LocalPhoneNumber",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.kaiseraluminum.com/role/CoverPageCoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_PreCommencementIssuerTenderOffer": {
     "auth_ref": [
      "r2"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.",
        "label": "Pre-commencement Issuer Tender Offer",
        "terseLabel": "Pre-commencement Issuer Tender Offer"
       }
      }
     },
     "localname": "PreCommencementIssuerTenderOffer",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.kaiseraluminum.com/role/CoverPageCoverPage"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_PreCommencementTenderOffer": {
     "auth_ref": [
      "r3"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.",
        "label": "Pre-commencement Tender Offer",
        "terseLabel": "Pre-commencement Tender Offer"
       }
      }
     },
     "localname": "PreCommencementTenderOffer",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.kaiseraluminum.com/role/CoverPageCoverPage"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_Security12bTitle": {
     "auth_ref": [
      "r0"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Title of a 12(b) registered security.",
        "label": "Title of 12(b) Security",
        "terseLabel": "Title of 12(b) Security"
       }
      }
     },
     "localname": "Security12bTitle",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.kaiseraluminum.com/role/CoverPageCoverPage"
     ],
     "xbrltype": "securityTitleItemType"
    },
    "dei_SecurityExchangeName": {
     "auth_ref": [
      "r1"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Name of the Exchange on which a security is registered.",
        "label": "Security Exchange Name",
        "terseLabel": "Security Exchange Name"
       }
      }
     },
     "localname": "SecurityExchangeName",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.kaiseraluminum.com/role/CoverPageCoverPage"
     ],
     "xbrltype": "edgarExchangeCodeItemType"
    },
    "dei_SolicitingMaterial": {
     "auth_ref": [
      "r4"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.",
        "label": "Soliciting Material",
        "terseLabel": "Soliciting Material"
       }
      }
     },
     "localname": "SolicitingMaterial",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.kaiseraluminum.com/role/CoverPageCoverPage"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_TradingSymbol": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Trading symbol of an instrument as listed on an exchange.",
        "label": "Trading Symbol",
        "terseLabel": "Trading Symbol"
       }
      }
     },
     "localname": "TradingSymbol",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.kaiseraluminum.com/role/CoverPageCoverPage"
     ],
     "xbrltype": "tradingSymbolItemType"
    },
    "dei_WrittenCommunications": {
     "auth_ref": [
      "r6"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.",
        "label": "Written Communications",
        "terseLabel": "Written Communications"
       }
      }
     },
     "localname": "WrittenCommunications",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.kaiseraluminum.com/role/CoverPageCoverPage"
     ],
     "xbrltype": "booleanItemType"
    },
    "kalu_CoverPageAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Cover Page",
        "label": "Cover Page [Abstract]"
       }
      }
     },
     "localname": "CoverPageAbstract",
     "nsuri": "http://www.kaiseraluminum.com/20191030",
     "xbrltype": "stringItemType"
    }
   },
   "unitCount": 0
  }
 },
 "std_ref": {
  "r0": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "b"
  },
  "r1": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "d1-1"
  },
  "r2": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "13e",
   "Subsection": "4c"
  },
  "r3": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "14d",
   "Subsection": "2b"
  },
  "r4": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "14a",
   "Subsection": "12"
  },
  "r5": {
   "Name": "Regulation 12B",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "b-2"
  },
  "r6": {
   "Name": "Securities Act",
   "Number": "230",
   "Publisher": "SEC",
   "Section": "425"
  }
 },
 "version": "2.1"
}
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>12
<FILENAME>report.css
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
/* Updated 2009-11-04 */
/* v2.2.0.24 */

/* DefRef Styles */
..report table.authRefData{
	background-color: #def;
	border: 2px solid #2F4497;
	font-size: 1em;
	position: absolute;
}

..report table.authRefData a {
	display: block;
	font-weight: bold;
}

..report table.authRefData p {
	margin-top: 0px;
}

..report table.authRefData .hide {
	background-color: #2F4497;
	padding: 1px 3px 0px 0px;
	text-align: right;
}

..report table.authRefData .hide a:hover {
	background-color: #2F4497;
}

..report table.authRefData .body {
	height: 150px;
	overflow: auto;
	width: 400px;
}

..report table.authRefData table{
	font-size: 1em;
}

/* Report Styles */
..pl a, .pl a:visited {
	color: black;
	text-decoration: none;
}

/* table */
..report {
	background-color: white;
	border: 2px solid #acf;
	clear: both;
	color: black;
	font: normal 8pt Helvetica, Arial, san-serif;
	margin-bottom: 2em;
}

..report hr {
	border: 1px solid #acf;
}

/* Top labels */
..report th {
	background-color: #acf;
	color: black;
	font-weight: bold;
	text-align: center;
}

..report th.void	{
	background-color: transparent;
	color: #000000;
	font: bold 10pt Helvetica, Arial, san-serif;
	text-align: left;
}

..report .pl {
	text-align: left;
	vertical-align: top;
	white-space: normal;
	width: 200px;
	white-space: normal; /* word-wrap: break-word; */
}

..report td.pl a.a {
	cursor: pointer;
	display: block;
	width: 200px;
	overflow: hidden;
}

..report td.pl div.a {
	width: 200px;
}

..report td.pl a:hover {
	background-color: #ffc;
}

/* Header rows... */
..report tr.rh {
	background-color: #acf;
	color: black;
	font-weight: bold;
}

/* Calendars... */
..report .rc {
	background-color: #f0f0f0;
}

/* Even rows... */
..report .re, .report .reu {
	background-color: #def;
}

..report .reu td {
	border-bottom: 1px solid black;
}

/* Odd rows... */
..report .ro, .report .rou {
	background-color: white;
}

..report .rou td {
	border-bottom: 1px solid black;
}

..report .rou table td, .report .reu table td {
	border-bottom: 0px solid black;
}

/* styles for footnote marker */
..report .fn {
	white-space: nowrap;
}

/* styles for numeric types */
..report .num, .report .nump {
	text-align: right;
	white-space: nowrap;
}

..report .nump {
	padding-left: 2em;
}

..report .nump {
	padding: 0px 0.4em 0px 2em;
}

/* styles for text types */
..report .text {
	text-align: left;
	white-space: normal;
}

..report .text .big {
	margin-bottom: 1em;
	width: 17em;
}

..report .text .more {
	display: none;
}

..report .text .note {
	font-style: italic;
	font-weight: bold;
}

..report .text .small {
	width: 10em;
}

..report sup {
	font-style: italic;
}

..report .outerFootnotes {
	font-size: 1em;
}
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EXCEL
<SEQUENCE>13
<FILENAME>Financial_Report.xlsx
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
begin 644 Financial_Report.xlsx
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MMWF\81AU8\K(XK%T-8943OTJDH\ Q:X831F:3LTXXFBD(3^ G/,6+V2?$9/
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M^L/O(NR\L3O[CXW/@FT#O^ZB_0)02P,$%     @ (ZY>3YE<G",0!@  G"<
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M.AQG0GS/]O:1I24RS^_Y"NM./&<?5I:P7<_/Y)Z,<B.[W?98??9/1VXCUZG
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M3]3P\#OF/"9K:I_-T2WZ1^'OV<UKNWK?YE5V=V5&Q&Y T <$F1"9K3T)4%2
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M^P ]VL&,&C@;GTO'N1CTZCL^FIP>C;[.R::^JV7U0K>%/YO1+U!+ P04
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MR$=*[4%?#?_)\@M02P$"% ,4    "  CKEY/'R// \     3 @  "P
M        @ $     7W)E;',O+G)E;'-02P$"% ,4    "  CKEY/)^B'#H(
M  "Q    $               @ 'I    9&]C4')O<',O87!P+GAM;%!+ 0(4
M Q0    ( ".N7D\U,2:D[P   "L"   1              "  9D!  !D;V-0
M<F]P<R]C;W)E+GAM;%!+ 0(4 Q0    ( ".N7D^97)PC$ 8  )PG   3
M          "  ;<"  !X;"]T:&5M92]T:&5M93$N>&UL4$L! A0#%     @
M(ZY>3\EI%0"K @  _@L  !@              ( !^ @  'AL+W=O<FMS:&5E
M=',O<VAE970Q+GAM;%!+ 0(4 Q0    ( ".N7D_DLR0QA (  '(&   4
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K  !;0V]N=&5N=%]4>7!E<UTN>&UL4$L%!@     *  H @ (  $(4      $!

end
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>ZIP
<SEQUENCE>14
<FILENAME>0000811596-19-000061-xbrl.zip
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
begin 644 0000811596-19-000061-xbrl.zip
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M.SZ*[@[I^"2O_AF%(4G8/P%^6J6/%=)WY06-H8>41O^E70[W4(*G=#P2'3J
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M55K<[\SFZ-^?I)XC X*E87O6H@1G.@0U/V8Z+$L]56JZ+V&M#B"P@N8-I(7
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MFPZ";2*+(6L]<*/2B]/FIU]+65Y$^8\"E20F&24?2AC]]A'8^WA&;0_"(&I
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MR\;+[#X- ?-#\5V=Q^'X,BAN^0;M7X[ZHS2<'__UJ#\II_'Q_P-02P,$%
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M*T+G09=0!LTIO?D:L]$G4$L#!!0    ( ".N7D]94B38IP$  .4%   5
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MUER(^P^G7FA_:+CBX:9;^N%1';B^^-<?"D+K0#%@L>2$G%VVL\$[4$L#!!0
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M&:QVH.?^)P:"NI0 E7(MK10$4@O2U336W*!!N5[.]L[AK4:Q33ET3J0IYQ1
MQ[7"@EL%L?0=0!XS>\L]R^F!J;O>8E=APHH\GLMA ?:*)$Y]830>U7(58.X3
MU+W/L]';R_S'B1_4257?U8NZT(\!7!X3?GH\X!U%WIC)RY9W\]AYR[D07]+K
M/9SQ^XT!2%.$-84:,8TE,;XKN9K##/(TMK8?M0XQ8L9(R(BER!(%J%(^/A I
MP1A$+5%MBGR1*O&QDBI7?+U'0@LO_/YX-31 **HN9; !X0DK- /V>O30,/\.
M3[0A$2(,.RLGY=WG[')2;3-FY>_#JVQ L$006T =8- B)Z$UZRTMESK4%SL;
MYTHKA2P5 !AJA/\M59(AHJBB?IT5/>MBD2FY#Y54J<)ET0S8TZ[HG56<*B(Q
M=2&*703V>*(5K)?71+OX>4>3)E82'V:CO/B>%_7Q\<R?(C.=7\_*XD[GXVJ?
MS!RC&!L+A/-R2IV@JQ) 1I,X9QSN"VFD#$R!A<SZ;CF7R& $N*,$,,O \RAD
M(^//29W2SYMDF32IHL9ZI27C4,T\']Y&UFE%MCL5':1TT$S=\'TMHNIH-%O>
MZI)2N,;<9)K]?GUUD14#98$$*>,&$PD(<P:)];(-%%9QSGK0,&$IQ8)!(:R@
MFG !L&,00"@UALS9YQ%4%2A9)(KU4 RD4.GTQ*>184+0=">2^Y$?M$8#0*]%
M$4VB;_F@\?C#B_]\>/MA[(]5DR^3Q?/RU23GG#E"M7/>-Y)3*%.X7EFUCC3!
MOEY2KA3C-M4 IC1UC@,L*""IL 1(K,CS:,&G2S;C-91$8YBAQG@.CHWT$8^P
M.YGL@7+0+&U!OA;-M!['EG.Z(1,N(#D>^^DU7_YR.IEE<  Y)\(P@$F:"LR4
MD(ZO'S$P+>+DLZL'(1%WAF.F,:#4I%)(!J5QVA&M$:;/(YYEI)]7+Y(J7/)Q
M%GU*:@0Q5#I]\VLDG'ATW0EG!Y"#LFD#\+6(IM48MB33GD@;P2"_FP(I11@0
M A2U"#*&U\\PD=_;MQ4,&D#(C?7G-86XI5ACGA)BL$.6^XXU>J8#S^XJ.;_)
MVPLF &)SP73+KT/!'$+7IV!0I&#" ;Y>P42,(4 PL42B!:/]RX_%>7XS&U"_
MT0?,4LVX2YW%C-!U91#%8".]/&@?*:!,RJPACE)1[;\,X*GA3G._$Q/FF>52
M):ON1E;9&HHE!EZD5GKBUDXJ0<@Z%\H]BA"=- #WRF329 3[5-*81K1(ZAN_
M'XM/1?YCXL<[X 1K2K#!5F%E#3":XO7]1@!!(YML=R+\*<%H+?RBSJG?C"'L
M1P-TRJEE!C^S4M9/.%8!&WHEFF6D7/K$V,XPX00[U\PC*"&N:<KQE0FG\3#V
M6:<=EVCU?,KGY7#ZG\GW^H$3E/X8A@%G5A.I!)4.N56Q0&0CGV#O[,*7HM2^
M$^2/>E19JKQ8K65,,N"8[_Z9M;,(E_ATC1Y6-Z,8J9S^ +833BB[SG6S 21$
M-LT(OC+5-!S$/M&T81*BF6K[)(ML6#=O, "("BRM-IA38SA%JY*P&@4_7-IH
M% +&H/*9A<)4.:LT$18K)9T&BI&^[[C4._HJ3*0YXL \[8K>F,39(1!'%S)X
M..(]Y=\(RLL7?+/8><O)$%[4U6>LIY^^YK/54VHH,.6RNJ\",;0,4*3L:OYR
MZ7AH86\WG#JFG<0< $L)8PI6[_QBC%H.9*KZ?H]LG2>I T4_&HZ']'21]\HG
MKM CT'11[(]'OJ?@&P-Z^:)O'CWO8(*$%_^?Q:0LLYG.KZZN9\MGQ?.!MIIC
M2!R@AAL@-4!HN8(YR!4//C/L:9TX!9UD&EE,K;5<6.472HXU\BKC?;_/=1DJ
MV4P5KH*&R)[V0?^TXJ00":H+,>Q$L,<.[7"]O"):YL^[FCCALCC+IY/1I)S,
M+G\;^L*;#*<#@"#5T!%$8*JY9 (:O)KV?G4,?I/'CJ:5!9Q*28%@A"*MJ_C,
M*8JHU(JXON\JW"=*5I'"'=&$U-."Z!E2G!UB^'2AANW![_%""THO+X4VX?-.
M9DJX#CX56:6<S ^J_NQO]5T<Q<<O7_Q&!?B&"7.8:(*EG_:",K6:[+X.@I^=
M'N@B3:61T,&4I8"F%(I40"H<M,(ZS%7:LQY\LN/1@VC)(EM2APL711N&3POC
MF?#%B:,9N2X4LA_''I5TP._EE=+%(/).YU1CQ7R8SZ^SXF&72!.$?)D@)!PE
M+N7:KHM$,$T;BF:[(VD@8SR%2AKF"Q$H(0$G)F7^'T5LWS<FMXIFD; ;ZS3
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M@CL;]S\ON2&0"<LILXH#ZSC2U;U<QTWO'[1?94I6H2*_3*@9L/#EOC=6D7=
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M@)N(A\6=8L(PYY%=\/ON]@_3%] =QA,?W]U_T;ZT_X_V\=W_ %!+ P04
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MZ*6[+(.X\$!KRYB&_C"ZF9$2ND35Y*55=?1;0+LVE#BA(^3&5<(4)N^:S39
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M<F5D:71A9W)E92YH=&U02P$"% ,4    "  CKEY/4T2_&+@#   #$P  $0
M            @ &Q&@  :V%L=2TR,#$Y,3 S,"YX<V102P$"% ,4    "  C
MKEY/D^6Z24(!  "3 @  %0              @ &8'@  :V%L=2TR,#$Y,3 S
M,%]C86PN>&UL4$L! A0#%     @ (ZY>3UE2)-BG 0  Y04  !4
M     ( !#2   &MA;'4M,C Q.3$P,S!?9&5F+GAM;%!+ 0(4 Q0    ( ".N
M7D^+&L)/]PL  *]K   5              "  ><A  !K86QU+3(P,3DQ,#,P
M7VQA8BYX;6Q02P$"% ,4    "  CKEY/+495><H&  "C-P  %0
M    @ $1+@  :V%L=2TR,#$Y,3 S,%]P<F4N>&UL4$L! A0#%     @ (ZY>
M3W'5G5OD"P  $S(  !H              ( !#C4  '!R97-S<F5L96%S961A
B=&5D;V-T;V(N:'1M4$L%!@     '  < VP$  "I!      $!

end
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>15
<FILENAME>Show.js
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
// Edgar(tm) Renderer was created by staff of the U.S. Securities and Exchange Commission.  Data and content created by government employees within the scope of their employment are not subject to domestic copyright protection. 17 U.S.C. 105.
var Show={};Show.LastAR=null,Show.showAR=function(a,r,w){if(Show.LastAR)Show.hideAR();var e=a;while(e&&e.nodeName!='TABLE')e=e.nextSibling;if(!e||e.nodeName!='TABLE'){var ref=((window)?w.document:document).getElementById(r);if(ref){e=ref.cloneNode(!0);
e.removeAttribute('id');a.parentNode.appendChild(e)}}
if(e)e.style.display='block';Show.LastAR=e};Show.hideAR=function(){Show.LastAR.style.display='none'};Show.toggleNext=function(a){var e=a;while(e.nodeName!='DIV')e=e.nextSibling;if(!e.style){}else if(!e.style.display){}else{var d,p_;if(e.style.display=='none'){d='block';p='-'}else{d='none';p='+'}
e.style.display=d;if(a.textContent){a.textContent=p+a.textContent.substring(1)}else{a.innerText=p+a.innerText.substring(1)}}}
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>16
<FILENAME>FilingSummary.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<XML>
<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.19.3</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>1</ContextCount>
  <ElementCount>97</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>0</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>0</UnitCount>
  <MyReports>
    <Report instance="amended2019creditagree.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>0001000 - Document - Cover Page Cover Page</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.kaiseraluminum.com/role/CoverPageCoverPage</Role>
      <ShortName>Cover Page Cover Page</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File doctype="8-K/A" original="amended2019creditagree.htm">amended2019creditagree.htm</File>
    <File>kalu-20191030.xsd</File>
    <File>kalu-20191030_cal.xml</File>
    <File>kalu-20191030_def.xml</File>
    <File>kalu-20191030_lab.xml</File>
    <File>kalu-20191030_pre.xml</File>
    <File>pressreleasedatedoctob.htm</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy>http://xbrl.sec.gov/dei/2019-01-31</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>17
<FILENAME>amended2019creditagree_htm.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<XML>
<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2019-01-31"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="kalu-20191030.xsd" xlink:type="simple"/>
    <context id="D2019Q4SD">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000811596</identifier>
        </entity>
        <period>
            <startDate>2019-10-30</startDate>
            <endDate>2019-10-30</endDate>
        </period>
    </context>
    <dei:AmendmentFlag
      contextRef="D2019Q4SD"
      id="Fact-D0E73C012AD15962A742B677922BB1CC-wk-Fact-D0E73C012AD15962A742B677922BB1CC">true</dei:AmendmentFlag>
    <dei:EntityCentralIndexKey
      contextRef="D2019Q4SD"
      id="Fact-9F411B2A277F562A9F746EF3DF74D825-wk-Fact-9F411B2A277F562A9F746EF3DF74D825">0000811596</dei:EntityCentralIndexKey>
    <dei:DocumentType
      contextRef="D2019Q4SD"
      id="d184471464e80-wk-Fact-7BFF39F0055F4E6600841F1698FB9D68">8-K/A</dei:DocumentType>
    <dei:DocumentPeriodEndDate
      contextRef="D2019Q4SD"
      id="d184471464e97-wk-Fact-3A2ACB4A49A359DC979CFE882F810049">2019-10-30</dei:DocumentPeriodEndDate>
    <dei:EntityRegistrantName
      contextRef="D2019Q4SD"
      id="d184471464e103-wk-Fact-0199168390A953519E2BBD83A7FB2183">KAISER ALUMINUM CORPORATION</dei:EntityRegistrantName>
    <dei:EntityIncorporationStateCountryCode
      contextRef="D2019Q4SD"
      id="d184471464e165-wk-Fact-85C9F4BCBE71566D8B5217A9806E3106">DE</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber
      contextRef="D2019Q4SD"
      id="d184471464e185-wk-Fact-F6AACFDB7D2C5607A77DA6F6E851750D">1-09447</dei:EntityFileNumber>
    <dei:EntityTaxIdentificationNumber
      contextRef="D2019Q4SD"
      id="d184471464e195-wk-Fact-379F3D2E2870557F893A6EC782F58F79">94-3030279</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressAddressLine1
      contextRef="D2019Q4SD"
      id="d184471464e314-wk-Fact-B13219DF2CDF5CAFB4012A780F44D5D5">27422 Portola Parkway,</dei:EntityAddressAddressLine1>
    <dei:EntityAddressAddressLine2
      contextRef="D2019Q4SD"
      id="d184471464e324-wk-Fact-765BA1D7E7AF515AABBBD58DF9EE8D61">Suite&#160;200</dei:EntityAddressAddressLine2>
    <dei:EntityAddressCityOrTown
      contextRef="D2019Q4SD"
      id="d184471464e350-wk-Fact-E54F763A403B54519160553092E1211F">Foothill Ranch,</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince
      contextRef="D2019Q4SD"
      id="d184471464e355-wk-Fact-DB7CFA98DF125E39B3AF8786514F91AC">CA</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode
      contextRef="D2019Q4SD"
      id="d184471464e375-wk-Fact-F4127769BA8A5724A1C12C17497BBD6B">92610-2831</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode
      contextRef="D2019Q4SD"
      id="d184471464e418-wk-Fact-4363ADA3A22A5F3EA1AB58A6ECBD02D8">949</dei:CityAreaCode>
    <dei:LocalPhoneNumber
      contextRef="D2019Q4SD"
      id="d184471464e423-wk-Fact-E43B30DFCC385ABABD2C612130EAE1C2">614-1740</dei:LocalPhoneNumber>
    <dei:WrittenCommunications
      contextRef="D2019Q4SD"
      id="d184471464e443-wk-Fact-A63C4110B6E95EFBAC6BBAE3DCC3E746">false</dei:WrittenCommunications>
    <dei:SolicitingMaterial
      contextRef="D2019Q4SD"
      id="d184471464e449-wk-Fact-11C815C8BBA65A1BAFFA59C7088A0AE7">false</dei:SolicitingMaterial>
    <dei:PreCommencementTenderOffer
      contextRef="D2019Q4SD"
      id="d184471464e454-wk-Fact-759C86E708F85E3A8EB9A86C4FF77637">false</dei:PreCommencementTenderOffer>
    <dei:PreCommencementIssuerTenderOffer
      contextRef="D2019Q4SD"
      id="d184471464e459-wk-Fact-FAE301CC025C592A9ED18619FDE8E68A">false</dei:PreCommencementIssuerTenderOffer>
    <dei:Security12bTitle
      contextRef="D2019Q4SD"
      id="d184471464e498-wk-Fact-7BF7AEF6AFD55320AF1E7919D49783CA">Common Stock, par value $0.01 per share</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="D2019Q4SD"
      id="d184471464e503-wk-Fact-26A59FB134DD5C67B69BE447FC49E9F8">KALU</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="D2019Q4SD"
      id="d184471464e508-wk-Fact-DE98EF9D80E154A69678A39E8B0A5CE5">NASDAQ</dei:SecurityExchangeName>
    <dei:EntityEmergingGrowthCompany
      contextRef="D2019Q4SD"
      id="d184471464e516-wk-Fact-420E61AF003958F0A6930BF304E1CF4A">false</dei:EntityEmergingGrowthCompany>
</xbrl>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
