<SEC-DOCUMENT>0001193125-19-308605.txt : 20191209
<SEC-HEADER>0001193125-19-308605.hdr.sgml : 20191209
<ACCEPTANCE-DATETIME>20191209061210
ACCESSION NUMBER:		0001193125-19-308605
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		13
CONFORMED PERIOD OF REPORT:	20191206
ITEM INFORMATION:		Other Events
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20191209
DATE AS OF CHANGE:		20191209

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			RAMBUS INC
		CENTRAL INDEX KEY:			0000917273
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		IRS NUMBER:				943112828
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-22339
		FILM NUMBER:		191274246

	BUSINESS ADDRESS:	
		STREET 1:		1050 ENTERPRISE WAY, SUITE 700
		CITY:			SUNNYVALE
		STATE:			CA
		ZIP:			94089
		BUSINESS PHONE:		408-462-8000

	MAIL ADDRESS:	
		STREET 1:		1050 ENTERPRISE WAY, SUITE 700
		CITY:			SUNNYVALE
		STATE:			CA
		ZIP:			94089
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>d44573d8k.htm
<DESCRIPTION>8-K
<TEXT>
<XBRL>
<?xml version="1.0" encoding="utf-8" ?>
<html xmlns:dei="http://xbrl.sec.gov/dei/2019-01-31" xmlns:us-types="http://fasb.org/us-types/2019-01-31" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:rmbs="http://www.rambus.com/20191206" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:utr="http://www.xbrl.org/2009/utr" xmlns:iso4217="http://www.xbrl.org/2003/iso4217" xmlns:ix="http://www.xbrl.org/2013/inlineXBRL" xmlns:ixt="http://www.xbrl.org/inlineXBRL/transformation/2015-02-26" xmlns:ixt-sec="http://www.sec.gov/inlineXBRL/transformation/2015-08-31" xmlns:sic="http://xbrl.sec.gov/sic/2011-01-31" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xbrldi="http://xbrl.org/2006/xbrldi" xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>8-K</title>
<meta http-equiv="Content-Type" content="text/html" />
</head>
   <body>
 <div style="display:none"> <ix:header> <ix:hidden> <ix:nonNumeric id="Hidden_dei_EntityRegistrantName" name="dei:EntityRegistrantName" contextRef="duration_2019-12-06_to_2019-12-06">RAMBUS INC</ix:nonNumeric> <ix:nonNumeric name="dei:AmendmentFlag" contextRef="duration_2019-12-06_to_2019-12-06">false</ix:nonNumeric> <ix:nonNumeric id="Hidden_dei_EntityCentralIndexKey" name="dei:EntityCentralIndexKey" contextRef="duration_2019-12-06_to_2019-12-06">0000917273</ix:nonNumeric> </ix:hidden> <ix:references> <link:schemaRef xlink:type="simple" xlink:href="rmbs-20191206.xsd" xlink:arcrole="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:link="http://www.xbrl.org/2003/linkbase"></link:schemaRef> </ix:references> <ix:resources> <xbrli:context id="duration_2019-12-06_to_2019-12-06"> <xbrli:entity> <xbrli:identifier scheme="http://www.sec.gov/CIK">0000917273</xbrli:identifier> </xbrli:entity> <xbrli:period> <xbrli:startDate>2019-12-06</xbrli:startDate> <xbrli:endDate>2019-12-06</xbrli:endDate> </xbrli:period> </xbrli:context> </ix:resources> </ix:header> </div> <div style="font-size:10pt;width:8.5in;margin:0 auto"> <div style="text-align:center"> <p style="line-height:0.5pt;border-bottom:0.50px solid #000000;width:100%;margin-top:0pt;margin-bottom:0pt">&#160;</p></div> <div style="text-align:center"> <p style="line-height:3pt;border-bottom:0.50px solid #000000;width:100%;margin-top:0pt;margin-bottom:2pt">&#160;</p></div> <p style="margin-bottom:0px;margin-top:4pt"></p> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:18pt;margin-bottom:0pt;margin-top:0pt">UNITED STATES</p> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:18pt;margin-bottom:0pt;margin-top:0pt">SECURITIES AND EXCHANGE COMMISSION</p> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:12pt;margin-bottom:0pt;margin-top:0pt">Washington, D.C. 20549</p> <div style="text-align:center"> <p style="line-height:6pt;margin-left:auto;border-bottom:1px solid #000000;width:21.05%;margin-right:auto;margin-top:10pt;margin-bottom:0px">&#160;</p></div> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:18pt;margin-bottom:0px;margin-top:10pt">FORM <ix:nonNumeric name="dei:DocumentType" contextRef="duration_2019-12-06_to_2019-12-06">8-K</ix:nonNumeric></p> <div style="text-align:center"> <p style="line-height:6pt;margin-left:auto;border-bottom:1px solid #000000;width:21.05%;margin-right:auto;margin-top:10pt;margin-bottom:0px">&#160;</p></div> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:12pt;margin-bottom:0px;margin-top:10pt">CURRENT REPORT</p> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:12pt;margin-bottom:0pt;margin-top:0pt">Pursuant to Section 13 or 15(d)</p> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:12pt;margin-bottom:0pt;margin-top:0pt">of the Securities Exchange Act of 1934</p> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:12pt;margin-bottom:0px;margin-top:10pt">Date of Report (Date of earliest event reported):</p> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:12pt;margin-bottom:0pt;margin-top:0pt"><ix:nonNumeric name="dei:DocumentPeriodEndDate" contextRef="duration_2019-12-06_to_2019-12-06" format="ixt:datemonthdayyearen">December 6, 2019</ix:nonNumeric></p> <div style="text-align:center"> <p style="line-height:6pt;margin-left:auto;border-bottom:1px solid #000000;width:21.05%;margin-right:auto;margin-top:10pt;margin-bottom:0px">&#160;</p></div> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:24pt;margin-bottom:0px;margin-top:10pt"> <span style=" -sec-ix-hidden:Hidden_dei_EntityRegistrantName">Rambus Inc.</span> </p> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:10pt;margin-bottom:0pt;margin-top:0pt">(Exact name of registrant as specified in its charter)</p> <div style="text-align:center"> <p style="line-height:6pt;margin-left:auto;border-bottom:1px solid #000000;width:21.05%;margin-right:auto;margin-top:10pt;margin-bottom:0px">&#160;</p></div>
<table cellspacing="0" cellpadding="0" border="0" style="font-size:8pt;border-collapse:separate;border-spacing:0;width:100%;margin-bottom:0px;margin-top:10pt;margin-left:auto;margin-right:auto">
<tr>
<td style="width:34%;"></td>
<td></td>
<td style="width:33%;"></td>
<td style="width:1%;"></td>
<td style="width:33%;"></td></tr>
<tr style="page-break-inside:avoid;font-size:10pt;">
<td style="vertical-align:top;padding:0;"> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:10pt;margin-bottom:0pt;margin-top:0pt"><ix:nonNumeric name="dei:EntityIncorporationStateCountryCode" contextRef="duration_2019-12-06_to_2019-12-06" format="ixt-sec:stateprovnameen">Delaware</ix:nonNumeric></p></td>
<td style="vertical-align:top;">&#160;</td>
<td style="vertical-align:top;padding:0;"> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:10pt;margin-bottom:0pt;margin-top:0pt"><ix:nonNumeric name="dei:EntityFileNumber" contextRef="duration_2019-12-06_to_2019-12-06">000-22339</ix:nonNumeric></p></td>
<td style="vertical-align:top;">&#160;</td>
<td style="vertical-align:top;padding:0;"> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:10pt;margin-bottom:0pt;margin-top:0pt"><ix:nonNumeric name="dei:EntityTaxIdentificationNumber" contextRef="duration_2019-12-06_to_2019-12-06">94-3112828</ix:nonNumeric></p></td></tr>
<tr style="page-break-inside:avoid;font-size:8pt;">
<td style="vertical-align:top;padding:0;"> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:8pt;margin-bottom:0pt;margin-top:0pt">(State or other jurisdiction</p> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:8pt;margin-bottom:0pt;margin-top:0pt">of incorporation)</p></td>
<td style="vertical-align:top;">&#160;</td>
<td style="vertical-align:top;padding:0;"> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:8pt;margin-bottom:0pt;margin-top:0pt">(Commission</p> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:8pt;margin-bottom:0pt;margin-top:0pt">File Number)</p></td>
<td style="vertical-align:top;">&#160;</td>
<td style="vertical-align:top;padding:0;"> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:8pt;margin-bottom:0pt;margin-top:0pt">(I. R. S. Employer</p> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:8pt;margin-bottom:0pt;margin-top:0pt">Identification No.)</p></td></tr></table>
<table cellspacing="0" cellpadding="0" border="0" style="font-size:10pt;border-collapse:separate;border-spacing:0;width:100%;margin-left:auto;margin-right:auto">
<tr>
<td style="width:50%;"></td>
<td style="width:1%;"></td>
<td style="width:49%;"></td></tr>
<tr style="font-size:1pt;">
<td style="height:16px;">&#160;</td>
<td style="height:16px;">&#160;</td>
<td style="height:16px;">&#160;</td></tr>
<tr style="page-break-inside:avoid;font-size:10pt;">
<td style="vertical-align:top;padding:0;"> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:10pt;margin-bottom:0pt;margin-top:0pt"><ix:nonNumeric name="dei:EntityAddressAddressLine1" contextRef="duration_2019-12-06_to_2019-12-06">1050 Enterprise Way</ix:nonNumeric>, <ix:nonNumeric name="dei:EntityAddressAddressLine2" contextRef="duration_2019-12-06_to_2019-12-06">Suite 700</ix:nonNumeric></p> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:10pt;margin-bottom:0pt;margin-top:0pt"><ix:nonNumeric name="dei:EntityAddressCityOrTown" contextRef="duration_2019-12-06_to_2019-12-06">Sunnyvale</ix:nonNumeric>, <ix:nonNumeric name="dei:EntityAddressStateOrProvince" contextRef="duration_2019-12-06_to_2019-12-06" format="ixt-sec:stateprovnameen">California</ix:nonNumeric></p></td>
<td style="vertical-align:top;">&#160;</td>
<td style="vertical-align:bottom;"> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:10pt;margin-bottom:0pt;margin-top:0pt"><ix:nonNumeric name="dei:EntityAddressPostalZipCode" contextRef="duration_2019-12-06_to_2019-12-06">94089</ix:nonNumeric></p></td></tr>
<tr style="page-break-inside:avoid;font-size:8pt;">
<td style="vertical-align:top;padding:0;"> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:8pt;margin-bottom:0pt;margin-top:0pt">(Address of principal executive offices)</p></td>
<td style="vertical-align:top;">&#160;</td>
<td style="vertical-align:top;padding:0;"> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:8pt;margin-bottom:0pt;margin-top:0pt">(Zip Code)</p></td></tr></table> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:10pt;margin-bottom:0px;margin-top:10pt"><ix:nonNumeric name="dei:CityAreaCode" contextRef="duration_2019-12-06_to_2019-12-06">(408)</ix:nonNumeric> <ix:nonNumeric name="dei:LocalPhoneNumber" contextRef="duration_2019-12-06_to_2019-12-06">462-8000</ix:nonNumeric></p> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:8pt;margin-bottom:0pt;margin-top:0pt">(Registrant&#8217;s telephone number, including area code)</p> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:10pt;margin-bottom:0px;margin-top:10pt">Not Applicable</p> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:8pt;margin-bottom:0pt;margin-top:0pt">(Former name or former address, if changed since last report)</p> <div style="text-align:center"> <p style="line-height:6pt;margin-left:auto;border-bottom:1px solid #000000;width:21.05%;margin-right:auto;margin-top:10pt;margin-bottom:0px">&#160;</p></div> <p style="font-family:Times New Roman;text-align:left;font-size:10pt;margin-bottom:0px;margin-top: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:</p> <p style="margin-bottom:0px;margin-top:6pt"></p>
<table cellspacing="0" cellpadding="0" border="0" style="font-family:Times New Roman;border-collapse:collapse;text-align:left;width:100%;font-size:10pt;margin-bottom:0pt;margin-top:0pt;border:0;">
<tr style="page-break-inside:avoid;">
<td style="width:4%;text-align:left;">&#160;</td>
<td style="width:4%;vertical-align:top;"> <span style="font-family:Times New Roman;font-weight:normal"><ix:nonNumeric name="dei:WrittenCommunications" contextRef="duration_2019-12-06_to_2019-12-06" format="ixt-sec:boolballotbox">&#9744;</ix:nonNumeric></span>&#32;</td>
<td style="font-family:Times New Roman;text-align:left;font-size:10pt;margin-bottom:0pt;margin-top:0pt;">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</td></tr></table> <p style="margin-bottom:0px;margin-top:6pt"></p>
<table cellspacing="0" cellpadding="0" border="0" style="font-family:Times New Roman;border-collapse:collapse;text-align:left;width:100%;font-size:10pt;margin-bottom:0pt;margin-top:0pt;border:0;">
<tr style="page-break-inside:avoid;">
<td style="width:4%;text-align:left;">&#160;</td>
<td style="width:4%;vertical-align:top;"> <span style="font-family:Times New Roman;font-weight:normal"><ix:nonNumeric name="dei:SolicitingMaterial" contextRef="duration_2019-12-06_to_2019-12-06" format="ixt-sec:boolballotbox">&#9744;</ix:nonNumeric></span>&#32;</td>
<td style="font-family:Times New Roman;text-align:left;font-size:10pt;margin-bottom:0pt;margin-top:0pt;">Soliciting material pursuant to Rule <span style="white-space:nowrap">14a-12</span> under the Exchange Act (17 CFR 240.14a-12)</td></tr></table> <p style="margin-bottom:0px;margin-top:6pt"></p>
<table cellspacing="0" cellpadding="0" border="0" style="font-family:Times New Roman;border-collapse:collapse;text-align:left;width:100%;font-size:10pt;margin-bottom:0pt;margin-top:0pt;border:0;">
<tr style="page-break-inside:avoid;">
<td style="width:4%;text-align:left;">&#160;</td>
<td style="width:4%;vertical-align:top;"> <span style="font-family:Times New Roman;font-weight:normal"><ix:nonNumeric name="dei:PreCommencementTenderOffer" contextRef="duration_2019-12-06_to_2019-12-06" format="ixt-sec:boolballotbox">&#9744;</ix:nonNumeric></span>&#32;</td>
<td style="font-family:Times New Roman;text-align:left;font-size:10pt;margin-bottom:0pt;margin-top:0pt;">Pre-commencement communications pursuant to Rule <span style="white-space:nowrap">14d-2(b)</span> under the Exchange Act (17 CFR 240.14d-2(b))</td></tr></table> <p style="margin-bottom:0px;margin-top:6pt"></p>
<table cellspacing="0" cellpadding="0" border="0" style="font-family:Times New Roman;border-collapse:collapse;text-align:left;width:100%;font-size:10pt;margin-bottom:0pt;margin-top:0pt;border:0;">
<tr style="page-break-inside:avoid;">
<td style="width:4%;text-align:left;">&#160;</td>
<td style="width:4%;vertical-align:top;"> <span style="font-family:Times New Roman;font-weight:normal"><ix:nonNumeric name="dei:PreCommencementIssuerTenderOffer" contextRef="duration_2019-12-06_to_2019-12-06" format="ixt-sec:boolballotbox">&#9744;</ix:nonNumeric></span>&#32;</td>
<td style="font-family:Times New Roman;text-align:left;font-size:10pt;margin-bottom:0pt;margin-top:0pt;">Pre-commencement communications pursuant to Rule <span style="white-space:nowrap">13e-4(c)</span> under the Exchange Act (17 CFR 240.13e-4(c))</td></tr></table> <p style="font-family:Times New Roman;text-align:left;font-size:10pt;margin-bottom:0px;margin-top:10pt">Securities registered pursuant to Section 12(b) of the Act:</p>
<table cellspacing="0" cellpadding="0" border="0" style="font-size:8pt;border-collapse:separate;border-spacing:0;width:100%;margin-bottom:0px;margin-top:10pt;margin-left:auto;margin-right:auto">
<tr>
<td style="width:34%;"></td>
<td></td>
<td style="width:33%;"></td>
<td style="width:1%;"></td>
<td style="width:33%;"></td></tr>
<tr style="page-break-inside:avoid;font-size:8pt;">
<td style="border-bottom:1pt solid #000000;white-space:nowrap;vertical-align:bottom;"> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:8pt;margin-bottom:0pt;margin-top:0pt">Title of each class</p></td>
<td style="vertical-align:bottom;">&#160;</td>
<td style="border-bottom:1pt solid #000000;vertical-align:bottom;"> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:8pt;margin-bottom:0pt;margin-top:0pt">Trading</p> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:8pt;margin-bottom:0pt;margin-top:0pt">Symbol(s)</p></td>
<td style="vertical-align:bottom;">&#160;</td>
<td style="border-bottom:1pt solid #000000;vertical-align:bottom;"> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:8pt;margin-bottom:0pt;margin-top:0pt">Name of each exchange</p> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:8pt;margin-bottom:0pt;margin-top:0pt">on which registered</p></td></tr>
<tr style="page-break-inside:avoid;font-size:10pt;">
<td style="vertical-align:top;padding:0;"> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:10pt;margin-bottom:0pt;margin-top:0pt"><ix:nonNumeric name="dei:Security12bTitle" contextRef="duration_2019-12-06_to_2019-12-06">Common stock</ix:nonNumeric></p></td>
<td style="vertical-align:top;">&#160;</td>
<td style="vertical-align:top;padding:0;"> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:10pt;margin-bottom:0pt;margin-top:0pt"><ix:nonNumeric name="dei:TradingSymbol" contextRef="duration_2019-12-06_to_2019-12-06">RMBS</ix:nonNumeric></p></td>
<td style="vertical-align:top;">&#160;</td>
<td style="vertical-align:top;padding:0;"> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:10pt;margin-bottom:0pt;margin-top:0pt"><ix:nonNumeric name="dei:SecurityExchangeName" contextRef="duration_2019-12-06_to_2019-12-06" format="ixt-sec:exchnameen">NASDAQ Global Select Market</ix:nonNumeric></p></td></tr></table> <p style="font-family:Times New Roman;text-align:left;font-size:10pt;margin-bottom:0px;margin-top:10pt">Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR &#167;230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR &#167;240.12b-2).</p> <p style="font-family:Times New Roman;text-align:right;font-size:10pt;margin-bottom:0px;margin-top:10pt">Emerging growth company&#160;&#160;<span style="font-family:Times New Roman;font-weight:normal"><ix:nonNumeric name="dei:EntityEmergingGrowthCompany" contextRef="duration_2019-12-06_to_2019-12-06" format="ixt-sec:boolballotbox">&#9744;</ix:nonNumeric></span></p> <p style="font-family:Times New Roman;text-align:left;font-size:10pt;margin-bottom:0px;margin-top: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 standards provided pursuant to Section 13(a) of the Exchange Act.&#160;&#160;<span style="font-family:Times New Roman;font-weight:normal">&#9744;</span></p> <p style="margin-bottom:0px;margin-top:10pt"></p> <div style="text-align:center"> <p style="line-height:0.5pt;border-bottom:0.50px solid #000000;width:100%;margin-top:0pt;margin-bottom:0pt">&#160;</p></div> <div style="text-align:center"> <p style="line-height:3pt;border-bottom:0.50px solid #000000;width:100%;margin-top:0pt;margin-bottom:2pt">&#160;</p></div> <div></div> <p style="margin-top:0"></p></div>

<p style='page-break-before:always'> </p>
<hr style="color:#999999;height:3px;width:100%" />

 <div style="font-size:10pt;width:8.5in;margin:0 auto">
<table cellspacing="0" cellpadding="0" border="0" style="font-family:Times New Roman;font-weight:bold;border-collapse:collapse;text-align:left;width:100%;font-size:10pt;margin-bottom:0pt;margin-top:0pt;border:0;">
<tr style="page-break-inside:avoid;">
<td style="width:10%;vertical-align:top;white-space:nowrap;">Item&#160;8.01 </td>
<td style="font-family:Times New Roman;font-weight:bold;text-align:left;font-size:10pt;margin-bottom:0pt;margin-top:0pt;">Other Events.</td> </tr> </table> <p style="font-family:Times New Roman;text-align:left;font-size:10pt;margin-bottom:0px;margin-top:6pt">On December&#160;8, 2019, Rambus Inc. (the &#8220;Company&#8221;) issued a press release announcing that, pursuant to that certain asset purchase agreement entered into on September&#160;11, 2019, as amended (the &#8220;Asset Purchase Agreement&#8221;), it had completed its acquisition of the silicon IP, secure protocols and provisioning&#32;business (the &#8220;Transaction&#8221;) from Verimatrix, formerly Inside Secure, a global provider of security and analytics solutions that protect devices, services and applications. The Transaction closed December 6, 2019.</p> <p style="font-family:Times New Roman;text-align:left;font-size:10pt;margin-bottom:0px;margin-top:12pt">A copy of the Company&#8217;s press release announcing the closing of the Transaction is attached to this report as Exhibit 99.1. The information in the press release that is an exhibit to this Current Report on Form <span style="white-space:nowrap">8-K</span> shall not be deemed &#8220;filed&#8221; for purposes of Section&#160;18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, regardless of any general incorporation language in such filing. </p> <p style="margin-bottom:0px;margin-top:18pt"></p>
<table cellspacing="0" cellpadding="0" border="0" style="font-family:Times New Roman;font-weight:bold;border-collapse:collapse;text-align:left;width:100%;font-size:10pt;margin-bottom:0pt;margin-top:0pt;border:0;">
<tr style="page-break-inside:avoid;">
<td style="width:10%;vertical-align:top;white-space:nowrap;">Item&#160;9.01 </td>
<td style="font-family:Times New Roman;font-weight:bold;text-align:left;font-size:10pt;margin-bottom:0pt;margin-top:0pt;">Financial Statements and Exhibits.</td> </tr> </table> <p style="margin-bottom:0px;margin-top:6pt"></p>
<table cellspacing="0" cellpadding="0" border="0" style="font-family:Times New Roman;border-collapse:collapse;text-align:left;width:100%;font-size:10pt;margin-bottom:0pt;margin-top:0pt;border:0;">
<tr style="page-break-inside:avoid;">
<td style="width:4%;text-align:left;">&#160;</td>
<td style="width:4%;vertical-align:top;">(d) </td>
<td style="font-family:Times New Roman;text-align:left;font-size:10pt;margin-bottom:0pt;margin-top:0pt;">Exhibits.</td> </tr> </table>
<table cellspacing="0" cellpadding="0" border="0" style="font-size:10pt;border-collapse:separate;border-spacing:0;width:92%;margin-bottom:0px;margin-top:12pt;margin-left:auto;margin-right:auto">
<tr>
<td></td>
<td></td>
<td></td>
<td style="width:3%;"></td>
<td style="width:94%;"></td> </tr>
<tr style="page-break-inside:avoid;font-size:10pt;">
<td style="white-space:nowrap;vertical-align:top;padding:0;font-family:Times New Roman;font-size:10pt;margin-bottom:0pt;margin-top:0pt;">&#160;</td>
<td style="white-space:nowrap;vertical-align:top;padding:0;text-align:left"> <p style="font-family:Times New Roman;font-size:10pt;margin-bottom:0pt;margin-top:0pt">99.1 </p> </td>
<td style="white-space:nowrap;vertical-align:top;padding-right:2pt;margin-bottom:0pt;margin-top:0pt;">&#160;</td>
<td style="vertical-align:top;">&#160;</td>
<td style="vertical-align:top;padding:0;"> <p style="font-family:Times New Roman;margin-left:0.00em;text-align:left;text-indent:0.00em;font-size:10pt;margin-bottom:0pt;margin-top:0pt"> <a href="d44573dex991.htm">Press Release of Rambus Inc., issued on December&#160;8, 2019. </a> </p> </td> </tr>
<tr style="font-size:1pt;">
<td style="height:8px;">&#160;</td>
<td style="height:8px;">&#160;</td>
<td style="height:8px;">&#160;</td>
<td style="height:8px;">&#160;</td>
<td style="height:8px;">&#160;</td> </tr>
<tr style="page-break-inside:avoid;font-size:10pt;">
<td style="white-space:nowrap;vertical-align:top;padding:0;font-family:Times New Roman;font-size:10pt;margin-bottom:0pt;margin-top:0pt;">&#160;</td>
<td style="white-space:nowrap;vertical-align:top;padding:0;text-align:left"> <p style="font-family:Times New Roman;font-size:10pt;margin-bottom:0pt;margin-top:0pt">104 </p> </td>
<td style="white-space:nowrap;vertical-align:top;padding-right:2pt;margin-bottom:0pt;margin-top:0pt;">&#160;</td>
<td style="vertical-align:top;">&#160;</td>
<td style="vertical-align:top;padding:0;"> <p style="font-family:Times New Roman;margin-left:0.00em;text-align:left;text-indent:0.00em;font-size:10pt;margin-bottom:0pt;margin-top:0pt">Cover Page Interactive Data File, formatted in InLine XBRL and included as Exhibit 101 </p> </td> </tr> </table> <div></div> <p style="margin-top:0"></p>
 </div>



<p style='page-break-before:always'> </p>
<hr style="color:#999999;height:3px;width:100%" />

 <div style="font-size:10pt;width:8.5in;margin:0 auto"> <p style="font-family:Times New Roman;font-weight:bold;text-align:center;font-size:10pt;margin-bottom:0pt;margin-top:0pt">SIGNATURES </p> <p style="font-family:Times New Roman;text-align:left;font-size:10pt;margin-bottom:0px;margin-top:12pt">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. </p>
<table cellspacing="0" cellpadding="0" border="0" style="font-size:10pt;border-collapse:separate;border-spacing:0;width:100%;margin-bottom:0px;margin-top:12pt;margin-left:0px;margin-right:auto">
<tr>
<td style="width:47%;"></td>
<td style="width:1%;"></td>
<td style="width:4%;"></td>
<td></td>
<td></td>
<td style="width:1%;"></td>
<td style="width:46%;"></td> </tr>
<tr style="page-break-inside:avoid;font-size:10pt;">
<td style="vertical-align:bottom;"> <p style="font-family:Times New Roman;text-align:left;font-size:10pt;margin-bottom:0pt;margin-top:0pt">Date: December&#160;8, 2019 </p> </td>
<td style="vertical-align:bottom;">&#160;</td>
<td style="vertical-align:bottom;"> <p style="font-family:Times New Roman;text-align:left;font-size:10pt;margin-bottom:0pt;margin-top:0pt"></p> </td>
<td style="vertical-align:bottom;">&#160;</td>
<td style="vertical-align:bottom;"> <p style="font-family:Times New Roman;text-align:left;font-size:10pt;margin-bottom:0pt;margin-top:0pt"></p> </td>
<td style="vertical-align:bottom;">&#160;</td>
<td style="vertical-align:bottom;"> <p style="font-family:Times New Roman;text-align:left;font-size:10pt;margin-bottom:0pt;margin-top:0pt">Rambus Inc. </p> </td> </tr>
<tr style="font-size:1pt;">
<td style="height:16px;">&#160;</td>
<td style="height:16px;">&#160;</td>
<td style="height:16px;">&#160;</td>
<td style="height:16px;">&#160;</td>
<td style="height:16px;">&#160;</td>
<td style="height:16px;">&#160;</td>
<td style="height:16px;">&#160;</td> </tr>
<tr style="page-break-inside:avoid;font-size:10pt;">
<td style="vertical-align:bottom;"> <p style="font-family:Times New Roman;text-align:left;font-size:10pt;margin-bottom:0pt;margin-top:0pt"></p> </td>
<td style="vertical-align:bottom;">&#160;</td>
<td style="vertical-align:bottom;"> <p style="font-family:Times New Roman;text-align:left;font-size:10pt;margin-bottom:0pt;margin-top:0pt"></p> </td>
<td style="vertical-align:bottom;">&#160;</td>
<td style="vertical-align:bottom;"> <p style="font-family:Times New Roman;text-align:left;font-size:10pt;margin-bottom:0pt;margin-top:0pt"></p> </td>
<td style="vertical-align:bottom;">&#160;</td>
<td style="vertical-align:bottom;"> <p style="font-family:Times New Roman;text-align:left;margin-bottom:1pt;font-size:10pt;margin-top:0pt;border-bottom:1px solid #000000">/s/ Jae Kim </p> </td> </tr>
<tr style="page-break-inside:avoid;font-size:10pt;">
<td style="vertical-align:bottom;"> <p style="font-family:Times New Roman;text-align:left;font-size:10pt;margin-bottom:0pt;margin-top:0pt"></p> </td>
<td style="vertical-align:bottom;">&#160;</td>
<td style="vertical-align:bottom;"> <p style="font-family:Times New Roman;text-align:left;font-size:10pt;margin-bottom:0pt;margin-top:0pt"></p> </td>
<td style="vertical-align:bottom;">&#160;</td>
<td style="vertical-align:bottom;"> <p style="font-family:Times New Roman;text-align:left;font-size:10pt;margin-bottom:0pt;margin-top:0pt"></p> </td>
<td style="vertical-align:bottom;">&#160;</td>
<td style="vertical-align:bottom;"> <p style="font-family:Times New Roman;text-align:left;font-size:10pt;margin-bottom:0pt;margin-top:0pt">Jae Kim </p> <p style="font-family:Times New Roman;text-align:left;font-size:10pt;margin-bottom:0pt;margin-top:0pt">Senior Vice President and General Counsel </p> </td> </tr> </table> <div></div> <p style="margin-top:0"></p>
 </div>

</body></html>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>d44573dex991.htm
<DESCRIPTION>EX-99.1
<TEXT>
<HTML><HEAD>
<TITLE>EX-99.1</TITLE>
</HEAD>
 <BODY BGCOLOR="WHITE">


<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B>Exhibit 99.1 </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>PRESS RELEASE </B></P> <P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Rambus Completes
Acquisition of the Verimatrix Silicon IP, Secure Protocols and Provisioning Business </B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><I>Creates industry&#146;s most comprehensive
portfolio of silicon-proven security IP </I></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>SUNNYVALE, Calif. &#150;</B><B></B><B>&nbsp;Dec. 8, 2019 &#150;</B>&nbsp;<U>Rambus Inc.</U>&nbsp;(NASDAQ:
<U>RMBS</U>), a premier silicon IP and chip provider making data faster and safer, today announced the completed acquisition of the silicon IP, secure protocols and provisioning business from <U>Verimatrix</U>, <U>formerly Inside Secure</U>, for
$45&nbsp;million at closing, and up to an additional $20&nbsp;million, subject to certain revenue targets for the transferred business for the calendar year 2020. The combined portfolio of products, including the secure silicon IP and provisioning
solutions from both companies, creates the most comprehensive silicon-proven security IP portfolio in the industry. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">&#147;This acquisition is a natural
fit for the company in line with our areas of focus in semiconductor,&#148; said Luc Seraphin, president and CEO of Rambus. &#147;The addition of this business from Verimatrix augments our portfolio of mission-critical embedded security products and
expands our offerings for data center, AI, networking and automotive.&#148; </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Although this transaction will not materially impact 2019 financial results
due to the timing of close and acquisition accounting, Rambus expects this acquisition to be accretive in 2020. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">For more information, visit
<U>rambus.com/insidesecure</U>. </P> <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Follow Rambus: </B> </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Company website: <U>rambus.com</U> </P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Rambus
blog:<U>&nbsp;rambus.com/blog</U> </P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><U></U>Twitter:&nbsp;<U>@rambusinc</U> </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">LinkedIn:&nbsp;<U>www.linkedin.com/company/rambus</U> </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Facebook:<U>&nbsp;www.facebook.com/RambusInc</U> </P> <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>About
Rambus Inc. </B></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Rambus is a premier silicon IP and chip provider that makes data faster and safer. With 30 years of innovation, we continue to develop the
foundational technology for all modern computing systems. Leveraging our semiconductor expertise, Rambus solutions speed performance, expand capacity and improve security for today&#146;s most demanding applications. From data center and edge to
artificial intelligence and automotive, our interface and security IP, and memory interface chips enable SoC and system designers to deliver their vision of the future. For more information, visit&nbsp;rambus.com. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Source: Rambus Inc. </P>
</DIV></Center>


<p Style='page-break-before:always'>
<HR SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">


<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Press Contact: </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Cori Pasinetti </P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Rambus Corporate Communications </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">t: (408) <FONT STYLE="white-space:nowrap">462-8306</FONT> </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><U>cpasinetti@rambus.com </U></P> <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Forward-looking statements</B>
</P> <P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B></B>Information set forth in this press release, including statements as to Rambus&#146; outlook and statements as to the expected timing, completion
and effects of the acquisition, constitute forward-looking statements within the meaning of the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">These statements are based on various assumptions and the current expectations of the management of Rambus and may not be accurate because of risks and
uncertainties surrounding these assumptions and expectations. Factors listed below, as well as other factors, may cause actual results to differ significantly from these forward-looking statements. There is no guarantee that any of the events
anticipated by these forward-looking statements will occur, or what effect they will have on the operations or financial condition of Rambus. Forward-looking statements included herein are made as of the date hereof, and Rambus undertakes no
obligation to publicly update or revise any forward-looking statement unless required to do so by federal securities laws. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Major risks, uncertainties and
assumptions include, but are not limited to: the expected benefits and costs of the transaction; management&#146;s plans relating to the transaction; statements of the plans, strategies and objectives of Rambus for future operations; any statements
regarding anticipated operational and financial results; any statements of expectation or belief; the risk that disruptions from the transaction will harm Rambus&#146; business; other factors described under &#147;Risk Factors&#148; in Rambus&#146;
Annual Report on Form <FONT STYLE="white-space:nowrap">10-K</FONT> and Quarterly Reports on Form <FONT STYLE="white-space:nowrap">10-Q;</FONT> and any statements of assumptions underlying any of the foregoing. It is not possible to predict or
identify all such factors. Consequently, while the list of factors presented here is considered representative, no such list should be considered to be a complete statement of all potential risks and uncertainties. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">### </P>
</DIV></Center>

</BODY></HTML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.SCH
<SEQUENCE>3
<FILENAME>rmbs-20191206.xsd
<DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA
<TEXT>
<XBRL>
<?xml version="1.0" encoding="us-ascii"?>
<!-- DFIN - https://www.dfinsolutions.com/ -->
<!-- CTU Version: Addin 62.6.8.14 - Release 2019.4 -->
<!-- Creation date: 12/9/2019 3:03:13 PM Eastern Time -->
<!-- Copyright (c) 2019 Donnelley Financial Solutions, Inc. All Rights Reserved. -->
<xsd:schema
  xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric"
  xmlns:num="http://www.xbrl.org/dtr/type/numeric"
  xmlns:us-types="http://fasb.org/us-types/2019-01-31"
  xmlns:rmbs="http://www.rambus.com/20191206"
  xmlns:dei="http://xbrl.sec.gov/dei/2019-01-31"
  xmlns:xbrli="http://www.xbrl.org/2003/instance"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:xlink="http://www.w3.org/1999/xlink"
  xmlns:xbrldt="http://xbrl.org/2005/xbrldt"
  xmlns:sic="http://xbrl.sec.gov/sic/2011-01-31"
  attributeFormDefault="unqualified"
  elementFormDefault="qualified"
  targetNamespace="http://www.rambus.com/20191206"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema">
    <xsd:import schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" namespace="http://www.xbrl.org/2003/instance" />
    <xsd:import schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" namespace="http://www.xbrl.org/2003/linkbase" />
    <xsd:import schemaLocation="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd" namespace="http://xbrl.sec.gov/dei/2019-01-31" />
    <xsd:import schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd" namespace="http://www.xbrl.org/dtr/type/numeric" />
    <xsd:import schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd" namespace="http://www.xbrl.org/dtr/type/non-numeric" />
    <xsd:import schemaLocation="http://xbrl.sec.gov/sic/2011/sic-2011-01-31.xsd" namespace="http://xbrl.sec.gov/sic/2011-01-31" />
    <xsd:import schemaLocation="https://xbrl.sec.gov/naics/2017/naics-2017-01-31.xsd" namespace="http://xbrl.sec.gov/naics/2017-01-31" />
    <xsd:import schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" namespace="http://xbrl.org/2005/xbrldt" />
  <xsd:annotation>
    <xsd:appinfo>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="rmbs-20191206_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:title="Label Links, all" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="rmbs-20191206_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:title="Presentation Links, all" xlink:type="simple" />
      <link:roleType roleURI="http://www.rambus.com//20191206/taxonomy/role/DocumentDocumentAndEntityInformation" id="Role_DocumentDocumentAndEntityInformation">
        <link:definition>100000 - Document - Document and Entity Information</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xsd:appinfo>
  </xsd:annotation>
</xsd:schema>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.LAB
<SEQUENCE>4
<FILENAME>rmbs-20191206_lab.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE
<TEXT>
<XBRL>
<?xml version="1.0" encoding="us-ascii" standalone="yes"?>
<!-- DFIN - https://www.dfinsolutions.com/ -->
<!-- CTU Version: Addin 62.6.8.14 - Release 2019.4 -->
<!-- Creation date: 12/9/2019 3:03:13 PM Eastern Time -->
<!-- Copyright (c) 2019 Donnelley Financial Solutions, Inc. All Rights Reserved. -->
<link:linkbase
  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"
  xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:labelLink xlink:role="http://www.xbrl.org/2003/role/link" xlink:type="extended">
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_CoverAbstract" xlink:type="locator" xlink:label="dei_CoverAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_CoverAbstract" xlink:to="dei_CoverAbstract_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_CoverAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Cover [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_CoverAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cover [Abstract]</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityRegistrantName" xlink:type="locator" xlink:label="dei_EntityRegistrantName" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityRegistrantName" xlink:to="dei_EntityRegistrantName_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityRegistrantName_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Registrant Name</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_EntityRegistrantName_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Registrant Name</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_AmendmentFlag" xlink:type="locator" xlink:label="dei_AmendmentFlag" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_AmendmentFlag" xlink:to="dei_AmendmentFlag_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_AmendmentFlag_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Amendment Flag</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_AmendmentFlag_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amendment Flag</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityCentralIndexKey" xlink:type="locator" xlink:label="dei_EntityCentralIndexKey" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCentralIndexKey" xlink:to="dei_EntityCentralIndexKey_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityCentralIndexKey_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Central Index Key</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_EntityCentralIndexKey_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Central Index Key</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentType" xlink:type="locator" xlink:label="dei_DocumentType" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentType" xlink:to="dei_DocumentType_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_DocumentType_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Document Type</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_DocumentType_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Type</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentPeriodEndDate" xlink:type="locator" xlink:label="dei_DocumentPeriodEndDate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentPeriodEndDate" xlink:to="dei_DocumentPeriodEndDate_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_DocumentPeriodEndDate_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Document Period End Date</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_DocumentPeriodEndDate_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Period End Date</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityIncorporationStateCountryCode" xlink:type="locator" xlink:label="dei_EntityIncorporationStateCountryCode" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityIncorporationStateCountryCode" xlink:to="dei_EntityIncorporationStateCountryCode_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityIncorporationStateCountryCode_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Incorporation State Country Code</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_EntityIncorporationStateCountryCode_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Incorporation State Country Code</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityFileNumber" xlink:type="locator" xlink:label="dei_EntityFileNumber" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityFileNumber" xlink:to="dei_EntityFileNumber_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityFileNumber_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity File Number</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_EntityFileNumber_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity File Number</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityTaxIdentificationNumber" xlink:type="locator" xlink:label="dei_EntityTaxIdentificationNumber" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityTaxIdentificationNumber" xlink:to="dei_EntityTaxIdentificationNumber_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityTaxIdentificationNumber_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Tax Identification Number</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_EntityTaxIdentificationNumber_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Tax Identification Number</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressAddressLine1" xlink:type="locator" xlink:label="dei_EntityAddressAddressLine1" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressAddressLine1" xlink:to="dei_EntityAddressAddressLine1_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressAddressLine1_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, Address Line One</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressAddressLine1_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, Address Line One</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressAddressLine2" xlink:type="locator" xlink:label="dei_EntityAddressAddressLine2" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressAddressLine2" xlink:to="dei_EntityAddressAddressLine2_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressAddressLine2_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, Address Line Two</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressAddressLine2_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, Address Line Two</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressCityOrTown" xlink:type="locator" xlink:label="dei_EntityAddressCityOrTown" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressCityOrTown" xlink:to="dei_EntityAddressCityOrTown_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressCityOrTown_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, City or Town</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressCityOrTown_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, City or Town</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressStateOrProvince" xlink:type="locator" xlink:label="dei_EntityAddressStateOrProvince" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressStateOrProvince" xlink:to="dei_EntityAddressStateOrProvince_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressStateOrProvince_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, State or Province</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressStateOrProvince_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, State or Province</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressPostalZipCode" xlink:type="locator" xlink:label="dei_EntityAddressPostalZipCode" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressPostalZipCode" xlink:to="dei_EntityAddressPostalZipCode_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressPostalZipCode_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, Postal Zip Code</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressPostalZipCode_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, Postal Zip Code</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_CityAreaCode" xlink:type="locator" xlink:label="dei_CityAreaCode" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_CityAreaCode" xlink:to="dei_CityAreaCode_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_CityAreaCode_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">City Area Code</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_CityAreaCode_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">City Area Code</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_LocalPhoneNumber" xlink:type="locator" xlink:label="dei_LocalPhoneNumber" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_LocalPhoneNumber" xlink:to="dei_LocalPhoneNumber_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_LocalPhoneNumber_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Local Phone Number</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_LocalPhoneNumber_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Local Phone Number</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_WrittenCommunications" xlink:type="locator" xlink:label="dei_WrittenCommunications" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_WrittenCommunications" xlink:to="dei_WrittenCommunications_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_WrittenCommunications_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Written Communications</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_WrittenCommunications_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Written Communications</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_SolicitingMaterial" xlink:type="locator" xlink:label="dei_SolicitingMaterial" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_SolicitingMaterial" xlink:to="dei_SolicitingMaterial_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_SolicitingMaterial_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Soliciting Material</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_SolicitingMaterial_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Soliciting Material</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_PreCommencementTenderOffer" xlink:type="locator" xlink:label="dei_PreCommencementTenderOffer" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_PreCommencementTenderOffer" xlink:to="dei_PreCommencementTenderOffer_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_PreCommencementTenderOffer_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Pre Commencement Tender Offer</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_PreCommencementTenderOffer_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Pre Commencement Tender Offer</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_PreCommencementIssuerTenderOffer" xlink:type="locator" xlink:label="dei_PreCommencementIssuerTenderOffer" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_PreCommencementIssuerTenderOffer" xlink:to="dei_PreCommencementIssuerTenderOffer_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_PreCommencementIssuerTenderOffer_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Pre Commencement Issuer Tender Offer</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_PreCommencementIssuerTenderOffer_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Pre Commencement Issuer Tender Offer</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_Security12bTitle" xlink:type="locator" xlink:label="dei_Security12bTitle" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_Security12bTitle" xlink:to="dei_Security12bTitle_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_Security12bTitle_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Security 12b Title</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_Security12bTitle_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Security 12b Title</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_TradingSymbol" xlink:type="locator" xlink:label="dei_TradingSymbol" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_TradingSymbol" xlink:to="dei_TradingSymbol_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_TradingSymbol_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Trading Symbol</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_TradingSymbol_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Trading Symbol</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_SecurityExchangeName" xlink:type="locator" xlink:label="dei_SecurityExchangeName" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_SecurityExchangeName" xlink:to="dei_SecurityExchangeName_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_SecurityExchangeName_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Security Exchange Name</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_SecurityExchangeName_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Security Exchange Name</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityEmergingGrowthCompany" xlink:type="locator" xlink:label="dei_EntityEmergingGrowthCompany" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityEmergingGrowthCompany" xlink:to="dei_EntityEmergingGrowthCompany_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityEmergingGrowthCompany_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Emerging Growth Company</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_EntityEmergingGrowthCompany_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Emerging Growth Company</link:label>
  </link:labelLink>
</link:linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>5
<FILENAME>rmbs-20191206_pre.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE
<TEXT>
<XBRL>
<?xml version="1.0" encoding="us-ascii" standalone="yes"?>
<!-- DFIN - https://www.dfinsolutions.com/ -->
<!-- CTU Version: Addin 62.6.8.14 - Release 2019.4 -->
<!-- Creation date: 12/9/2019 3:03:13 PM Eastern Time -->
<!-- Copyright (c) 2019 Donnelley Financial Solutions, Inc. All Rights Reserved. -->
<link:linkbase
    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"
    xmlns:xbrldt="http://xbrl.org/2005/xbrldt"
    xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.rambus.com//20191206/taxonomy/role/DocumentDocumentAndEntityInformation" xlink:href="rmbs-20191206.xsd#Role_DocumentDocumentAndEntityInformation" xlink:type="simple" />
  <link:presentationLink xlink:type="extended" xlink:role="http://www.rambus.com//20191206/taxonomy/role/DocumentDocumentAndEntityInformation">
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_CoverAbstract" xlink:type="locator" xlink:label="dei_CoverAbstract" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityRegistrantName" xlink:type="locator" xlink:label="dei_EntityRegistrantName" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_EntityRegistrantName" order="22.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_AmendmentFlag" xlink:type="locator" xlink:label="dei_AmendmentFlag" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_AmendmentFlag" order="23.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityCentralIndexKey" xlink:type="locator" xlink:label="dei_EntityCentralIndexKey" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_EntityCentralIndexKey" order="24.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentType" xlink:type="locator" xlink:label="dei_DocumentType" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_DocumentType" order="26.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentPeriodEndDate" xlink:type="locator" xlink:label="dei_DocumentPeriodEndDate" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_DocumentPeriodEndDate" order="27.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityIncorporationStateCountryCode" xlink:type="locator" xlink:label="dei_EntityIncorporationStateCountryCode" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_EntityIncorporationStateCountryCode" order="28.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityFileNumber" xlink:type="locator" xlink:label="dei_EntityFileNumber" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_EntityFileNumber" order="29.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityTaxIdentificationNumber" xlink:type="locator" xlink:label="dei_EntityTaxIdentificationNumber" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_EntityTaxIdentificationNumber" order="30.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressAddressLine1" xlink:type="locator" xlink:label="dei_EntityAddressAddressLine1" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_EntityAddressAddressLine1" order="31.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressAddressLine2" xlink:type="locator" xlink:label="dei_EntityAddressAddressLine2" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_EntityAddressAddressLine2" order="32.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressCityOrTown" xlink:type="locator" xlink:label="dei_EntityAddressCityOrTown" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_EntityAddressCityOrTown" order="33.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressStateOrProvince" xlink:type="locator" xlink:label="dei_EntityAddressStateOrProvince" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_EntityAddressStateOrProvince" order="34.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressPostalZipCode" xlink:type="locator" xlink:label="dei_EntityAddressPostalZipCode" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_EntityAddressPostalZipCode" order="35.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_CityAreaCode" xlink:type="locator" xlink:label="dei_CityAreaCode" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_CityAreaCode" order="36.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_LocalPhoneNumber" xlink:type="locator" xlink:label="dei_LocalPhoneNumber" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_LocalPhoneNumber" order="37.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_WrittenCommunications" xlink:type="locator" xlink:label="dei_WrittenCommunications" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_WrittenCommunications" order="38.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_SolicitingMaterial" xlink:type="locator" xlink:label="dei_SolicitingMaterial" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_SolicitingMaterial" order="39.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_PreCommencementTenderOffer" xlink:type="locator" xlink:label="dei_PreCommencementTenderOffer" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_PreCommencementTenderOffer" order="40.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_PreCommencementIssuerTenderOffer" xlink:type="locator" xlink:label="dei_PreCommencementIssuerTenderOffer" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_PreCommencementIssuerTenderOffer" order="41.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_Security12bTitle" xlink:type="locator" xlink:label="dei_Security12bTitle" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_Security12bTitle" order="42.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_TradingSymbol" xlink:type="locator" xlink:label="dei_TradingSymbol" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_TradingSymbol" order="43.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_SecurityExchangeName" xlink:type="locator" xlink:label="dei_SecurityExchangeName" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_SecurityExchangeName" order="44.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityEmergingGrowthCompany" xlink:type="locator" xlink:label="dei_EntityEmergingGrowthCompany" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_EntityEmergingGrowthCompany" order="45.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
  </link:presentationLink>
</link:linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>ZIP
<SEQUENCE>6
<FILENAME>0001193125-19-308605-xbrl.zip
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
begin 644 0001193125-19-308605-xbrl.zip
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M#Z5Q12Z]4L$\74%\5&/28+2LK@EU79@J^_/7UN=I=95>?UHUKP1U9=<3 ZI
M=+"GXZQ1R!9.$IUD03!F.HH%Y:%^R@E)D-Q*ES8HP.KFK.!@%;Z*,W-,QU)[
M3IZCRB?YL#"JNERJ4#<R6DD8M?&GXLIAM7+VTWD^_ B_&S!%"?:097\'_/XB
M4_=<Q5R5O0-1SA K_':146RD\KI'DL=V^:A30LAYQ[/'^/'<YO=$JK'#+C(V
ME[Y#QZ@Q+%,CYWQ4Q19,1)^Y;3,W_ Q5KD-U(=R^R/RFB[Z"UGYMN$#GN,5Z
M7.*"J&LZ )I<^!<&8+R:7JYI'JD6ZT*M0.@5_*IUV2QDC9.ORDM\R]1:EU>_
M?FF3YG7]/#]#S0)UTX$O!\RUX:_ZX-#>QB-VJ2/90X.ELJ(.0PKJ-%V;C3ZQ
M\2(O%BIL2)H!?RKF:>&TN$A??F[=!.LR 6:92?B.=JDJM06!L8@V:54TAQ<9
MR0>^@Y*M?]<72 J:K6QLGW(C:<?%5%C"0P%:VP(^@VVMG>=GYQ/-?F;&^KOT
M A%^U1I>C=BM5V\-=L?-F%Z\R5=NXR^ZG FB26"IYJK>_#2[8/.-D>K4_GU8
M4<^>? 73(]1[JEAM2EO<<EHVI=5>4C<NF0P[&2<_PYT)-Z?<RR?M0Q[L2&W&
MFG2A85;R_[&J:?CJ;,AMU:^6<\?</1M0T>-NU2 T4%YFMAD.EJ4.[[E5"UC
M!);[<2D:^VR?\5Y?58W<,?3;\010D.UX2GD#_)WACXCT'&Z3=X;^$PUM&L9/
MT<A9Y?E5)"KZ&C?V5:;V\SOSQ#@[S_NUE#FM3USQ:4DKI),V&7I^(J-D=R5L
MC,T2#?3J=.F .^/J'1\P2:[9D+2\ 77/=-DPG$?'<^RSA6F?)1:WG,;'N=ED
M:E^NFW>-]Z1]=WG7:.^8EG:C_J75O&LVVN3R^CUI_%G_[?+Z8X/4;ZZNFNUV
M\^;ZV0@LK$7@'U3V 38KSSTB[W/U'"D8QZ5*2-16TG@R'<1A755%O9L33W.)
M;!8 R1]/I%/H[G3S!-%FFBZ-5@KL\Z[Y:)ZZ3.W#3>MJ.3AX[UD!8H,$@EK?
M 6MT-NMY]VNUMOBGK!6H9ZMQ?4=:C=N;UMV.E?$V$#( H$J41]K,0ED@9I%X
M@IC'!_;ACJGSND3U&1(6"*XXC-<867WJ]ABYM!2!8K-2++THD2D+BA #:6DQ
MWQ.*',3?&06(P:0B[!ZZ)D(7,_NPNF.N/F@G;C5*:H3@:5.#0<(@]2(#@6W5
MA@X&T+QOT_$8^,%<8!>SV* #2/+DB&"[O7599VT+I?6$D9Q+G[KQ\ 13"UD^
MRH9A4O6A4+;6TLD:TG2MW'D>>T+T^TS2FHI1%Z3UH#&BH.LHI:A48D(PH9)(
MGUD86=B$NX0K2< Z@(Z)PS<@1)@?H1V'$8LY#BR%I7.-1D9_]ZEMQ]]#VO3'
MA>BD/$7JEN<XU)>L*IE/08M97!#U74T#[,M%;9%'"]/.A),0X0\[IBX<I5CZ
MZ0R!N[*CXN3GN:K%N:JSQ>;*TD1C^">B1<1U?-ICV8Y@]!NF&2%2K=)[C]OS
M8IJ9Z_J>"<4MZD02!3PYBU8$N)C9I;HL->ZAOH-B>P+\D#;B;0524/<"5XEQ
MW;,?9>K1T&!LKI@OO'L<-K3U#AV"V4^S\2DKEL+6J6*L4_O[6(0/W&%0!CYP
MFW18ME H%E.]YH_+T3LZ:D99)DNS<$OV5DK9HFD6RH7R4OYN943*K\.&K)=!
M.-!V 6, #]"W('\!^)8VU\'!<X&!]2@#_\^3!NSP>Y7Z-1>B[@T&7,J=\QT-
M%@E5ZJVSO)DCK1QIYTACX#O>F(G=<G[6JI%K+W<X:XG@'P2)3P07M35^#%[<
M%@T>&X^ >*7**HB7F%V*%8Y OWD""'>%P#ZVVAYZCB]M6S IHQ^?(>(R-_;/
MIG%LD :2YX-/8N0/.IYWU$?+\Z#+Z"AL3$<[X. A3PTC/7GQRI>@#A]OQ)TW
M=+>8N.N.[ZFS@.C79;O&%C?B%H($KH\7/'7(40<.0B67TY> R.%:? ]Z=^L!
MJYS_<G^;2 ^ L5%>'G/\ )@XXB*FH,#TN!;WJ4/8B%F!XO>8F0(?S>1;1T<@
M/@3E9QD(>2DE2$E\+M4"M':7((A;R?T!R/WA^L=P/GNP;+=]S]TVOB^=%+)E
MX^7\RIKK/DT3__RN7#!/SR11S&$^SI2X>JI'&)HY 4HIH<!NF'DD)[N4BFM/
MD4O?=T"=.NBT=LK%#^"[()X.4]E"NS+X2D/+ OSKDG!S"PP!^D;B4!EO&[V%
MA/9ZC$_,"ZG=8LWK?69]TQN'U =D .8:TQD=;T0ZS/&&R&<LQ-4@Y>PGTN4.
M"BV7(,&*N3;P7WFP!(/ 4=1E7B"=,9&@N;([UBVC!EX'J SCLFBC,K$Y$4 _
ML+;N."[K0CCE#;$=HA6.0;V<WPE<.;F3R4&7QX9Z2S@_'_?%'Q:6)!'V;0A6
MHC%"-[867IA'"%'$]],"42O\Z:1-JAN>W3%;UR:XB$.=%6[G#\$52!.F< (W
MBM_EH^%NQ_.<#@5)4B#/..7*::ETMN@M]-;=S^^*A31^/*'Z+2QPIA9-'&::
MG#GQ$R<-6@$(;ZEP'&G)W!X_;NT?F*>D_J%%"D4C!Q4/5V*-O=J\';5I@Q>R
M0 [<WA58;3#=SH^@,]-9DT$T[46%F6'XL,\5TZDX!K,8"NIG:F:) @_B??NI
M;LT<FIEH5LG(A0WVRO6C*->M8.B/\,"X/@^(8$?<=+N;!RK?HY+![+-68OH/
M>J@U%,[.%@XZAQNI7-ADKW0_J-(UI0R8V*O>8U6OR+*E VLCU8N:K%:]YXU-
M$S W#!:9@'#33SN%BU8B#AYA*M4GT?C]H; G.126EKN>SZBH^8S*@A3/FZ%G
MW4Q8+T=UA]<PP\/+5I]8#I5RO93VA/:EQO<A_KQ"9@B*^K3;K&%[/(">#M;=
M6GB+ZW =G?W5,LDB\[[CDT@N 7T&<J96_'&[86]EKS]R<&.ST-&V9.,=$,1*
M'KI^S_JV/^08,C4R1*$IV/P^^=6O[3TG9\4S!HG;7-!? .!HDN+C!]>7[?>7
M_R$?'0\@.8 Y!^ <N:+B&U.KM\]?'(HV71OQ-R.=,;'TE@E4^09FC>E3GW/[
M&5P2 .0 WK&7'ND);ZCZ".-]W..@DMBLR]WP(D:8WC6.R>+]K>FUK>($FZ-\
MG9[I3*]Q?(@[8[H#L"#90DH7:5? YOM"M(_-#W,;N(D$2S5<W8*GC73^A!H4
MZ=&S!)GA48]X^(]Z]'HX^,O&E]OQ>UL1[JX02MR03I5POK!9UP?YU9H*\NMZ
M.@P+)-.U@,9H2Q ?8.$Z- M?$4 ^Z;&<,0X^Y# TZH(+$X02P>ZYA':@%=2U
M,*%++0OO6F!E?%O%IL*6X6:@O2P&+![020R8E/O<DTG49#735F^=8Q?;[TOO
MGSA TI8^=Z [RM02U0FX7_3 <<U?$K"RPT < 58Z0SJ6OX2W]O"EG0D$A4C?
M$]5W%?WG;#++46(*X4LZ>I0MW[IXIH3D D3XCC*4II&:;DS)!H ]4VP0"DDY
M9YADPS3=*B"U9=[N1D.!!MY?EKF0G#"Z>4&THM/=-RZ)[PU'# HO#Q^1Q(U5
M<H!V$D\H%8RS>NQZX9MY=@@ 1@9@9BE87#S')\#>4[#QU'7!**.<@I&EZFC&
M#N-O0'2%HH!JJ)1,83&886S8$RS,96I#HI$/- &KW6:^2E!JFC&IX&7H(/0F
M24HO=<>W<<>7<<<QZ>#(T$79H;-AZ*3PJBNU_@YXY)$B%R&YP\'9D^;M$9&(
MF!CZ%XBD/ ?AFST]>@+SU9E@8!T8/>!'DJ [='54NZ )^[K"&Y#?P?$!-!!\
M=!2=7G+&P'G4@1"A,9@DZ878-_)L HF3$>S61%"7.F/0!XFV- @3P)K32"O"
M91M<I\4DSD'H3V&S\!B7KI\C=T!N@DYB.1YZV_G+Y5OBO\WQB#;PE[!$_N3$
M3T("]8FY%8+'-/WZ4%'8-CDUA-Y*44 P=BB47$:GPE"B&J,^[X" 5"HY,V0+
M=R?OQ"$:Q^YFA];,C@!]U#KNMQX(@3(=O64 />AC4@^FX_4K(6$F7O8!*VH8
MU6&PE"#*=BQ87>XP.Q(I#9] FWQ8-WVL-@(]D=*4UT3^2:TZFMQ9&^+E !ET
M_D)QTG-CQ.&T _JA>])] Q-D..81D"LBPGF2[NEM,_@"*'+RWA8R%L%>=!1L
MZ3F6*-99H'+CF0%:!;SH1$>0<>@><YD /9NY$4<<Z"8 !X4$RL#J1Q3FYJ_Q
MKY;F\G-O,?YX'KWR.CSZATDXHF]BH)\)S6MD1QYT\_NMZ1UL31_8AYO*SN-%
M9;5$[.Z^8:7PT$YDXAV<]7<BEVT[KMA%7+G'6$GL93[=EL##NXBS:=@'S<M&
M(K%<?#<D:TXZ-TL6;Y()1E@4^;Y'4AU)SCIO+&V8-'_V%'M2%XR<8;#!@GG0
MW[F+UXWC*AOSFIQ3$KZF:I=*QZ=%FXTJ%3/75P-] @2@2RM"H/A:UC1N.XJ#
M,V])E(?HA=:2R[CM/=_R6O=W7T.MO<G8E<DPC=+>8KR,Q:A[0"ZYQ7BEB5D4
MC'CO&7E/%27XZ,11M!FAPHVEIHO7M0D^B*XQ:WCC#+,ZTSC8-,Q%0S'%L6MF
M7'4.-'Z'B^A7Q5][[G5WNZWMYL?KR[LOK49[D\?B'I]NN9U)U>&.SM\!%U%,
MLV[Z(&4KR Z<,;%H@ FE9+8%ANE@DJWGAKX*LW =UJ=.%W,#V)'. T05^DRP
M %."NCM8I+XG8'9V%(J_CO<ZU@30B?(U3_*53A_SH,>*4X!;]WGR''#\D8>E
M'AFDA6^/5M-!TU(?MO&)L5U/<C^1US:1Y*;+$Z#RYWY]YU57>SO&Z,V(]WXB
MSSR16<K1,J1/;38EN_2U@DPM+_/DWY213WSP@$':Z]9^(ON))"<RJS<O,V:;
MN=P3Y'=N,8*I0?U_!.F8_F.TK8GO$DOF/$,L?Y[7_S_8N?[?PVK_!U!+ P04
M    " "$,8E/T<^37- )   Z'@  $    &0T-#4W,V1E>#DY,2YH=&W-66M3
MVTH2_>XJ_X<I<O<^JHPQY+%@#'4-F!O7$B#823;[;22-[;E(&MV9$8[WU^_I
M'MF622"[59#:5"I$FM%,]^GNTP]Z;\?O+HY[;P?]L^-FHS<>CB\&QX-_;A\<
MM'=[.^$1[W>J#:)W<G7V69S\<7IU<75SM/7I[7 \V*(%T6Q@WZG*O;+'O;/A
M1S$:?[X8'&W-=>)GW?WV:YUO"9GJ:7ZTE:J)YZ]ZU\MMF;13G6][4W0[A3\4
MU7-DO#=9>#4QN=]V^M^JN[M^GLA,IXON6&?*B4LU%S<FD[BI?S'\X_)HR^KI
M#%?U3HX'7V8ZTEZ09J*W<W+<V[DFU;XEP>[>$XA EU[?#$8C<3.X&/1'@]6M
MWU9[[]43ZAVS(5B&&YE%I1.G)BM2Y95K-OKQ7Z5VVFN3"S,1?J;$1V5U)KW5
M7\1(ISK&RO"Z)48J+JT2U]9X$YO4"9DG]'2'STVN\ZDX*9W.E7/?4>Y)$/U*
MN>'QJ542.@F=)Z7S=O'SB]U7;PZ=R(SS(H;*5LU4[O2=:C8*8_W$I-J0TBYH
MN5U &94+1XIJOX#6T&3XW)J0748?+B\_?^Q?#%KB%'$Q:0L(_[ISR$ 2EOSC
MYSQRQ>&9BMMBOR7V.KL'M6UAL?=A:>-A'K=[.Q^J][]>]D=G_?==.#EVO#L9
MT=)O+2$%4,FTLDL02&DR;#S3A2! =(+%3-Z2@1/II9A(!\1YDY,395O"FT0N
M\"(W91ZKA)THKEPL$?)K#W,UMW+!K8H-MRKJ;A4MW6IB328@_]I!28L6O9H8
MFRF;PF8P<*(J9PW+6&LV?GKU.B !&Z0DBH1/I 8G3UM\95E #_Q/R"1A864J
M?MKK;'P$:<OH3Q5[VAHKZZ7.A55PFE()#S=0WM%UK*2W,G? QP*#M0K58BQ3
ME2?2BH7"/WN=O4Y;C -L$78"@;J# HZDC+UKP;?CM$P(%<8Q8'?/='7PF@UG
MTI+4J>"#E\[8.#+7"@?&5=#0<5\'RF.AL980(-#GR[AKB^>.&(KLOQ^.9]IM
M>!<]BESZTLJTV9B X%=PL\(+DC0%O&*N@8(IX<50WQ'$$Q.71!U0,2.-"6]C
M6W33_B$<72?BHHSA5U86,PU/ $CD:;EGS$\'5W1*B#V.7A90K;PIN#XDW/3F
M&M?*<IKA.,=R;9@_TX[,N1T#>@W/$2J+5)+ 2U;V6'H("=-LJ"_0-@DGF0E\
M$)X0?(\C.'!F2_2'+9$K/S>6HYOTD"4L8CQ,WZY4?VY;]E,_,^5T%M#AH)$Q
M(S9'T(G<>%P!<;5,$=X:=D3X,?=-="[S&.\1@JY,/;)90G%H0OCIC)0"?!3F
M*FA7<Q89QZ KS_%?429@4X2AO^]8.#)2](55! VY20C9YP;G'";+C*4;B>&D
M9Q*BZ/;,Y#;X&]Q[1S/QN17O/2K<_A/EK7.3IF9>X=?EO"\>J:7>/,6UIU4L
MSU4$&%17;.! JC^B^5/4DU6&;3:BU$R[O66*K=F"%GZ$(+B;KAF#SA AW54)
M\'N0!<EB)<4#%GD2,2YT?JN28;X68#Z?MU-^JW-&I"+@G2#8#Y'J7,8J,N9V
M;2&2:E*]9:F"(8<UF)XY7OJ1*1&YM1+M.[7RDT1,=1VGQ_^JW/,S2:Q[BV.^
M6?*UQ2=*H"\[7+YP_M2H_NXJ?II3PB5J#6R<H$!*34&LC*P,TDUD55]Y%<]R
M@V!9<'("PX/M($#.";LD<A9N@;LSY-0+'&/EE$D=>6TC3S-U6Z^=6I'YNNYQ
MA:*"2EFF4%2H+1$2)*HP9!-*G_2 U$)%SCJG<O% I>U&(Y$HG,$5F"P*8,BZ
M0+QS2N>U],IGJF1*$#0;$L)--"<KC554DU,%2>[EW!9K1ALL^6D ?%URA4(U
M4\@(B]HNLAV25RZC%(6O.0V?,6R0UJ'+5K 1&R+%)5P1:2M"C;@LR2<ERB8%
M-1[../=IKOU8"#]-_AL!CQ@4OQDP?.G.V? C J>:,C0;@O_V"C'RBU0=_5+(
MJ=J.4-[=;D<*JJBN3.=RX7ZAC]_>B-'P7Y#XY99PO'^+IQC=%P?\9TM\&IZ-
MWQYM[78Z?UOUFJ>#R_'@YO]QQ,'S!4M5Y2EVH4+J?F^L\42IV&IQ+:F@]5[_
MF+0+#2VJ8Y2$-,;(RGP9@L^>4 #JKZ\Z^[^)WOG5Y7AE\!F*D&T'(E'=W,S1
M'FP=OWJSM[W_LO.FMT,[GS_5(</%Q=(,OZ\C5%!>^R%EH)U+FVRG2*S,V1[F
MX6:&O)""]5GS6S4A&:X9"ZS)S1^2%#>G2'T%AX=5*1H^56^DU\(*R309_"R0
M/@C9DU:!4^_O).(,30--/;CA:"TG'Y "M$\Y  T8=145T=;Z"MJ;.Z]]"6>>
M/(@A=ZM5CYTIF5=M#0\ D(W%3-H(K+UJ^U=775M]1W$R"BD$_;ZXP(]I@.B&
M6#$3?;13V+][</#Z!Q Z6F+T8G4@D6HB6"01$.E.6FU*0M>561&BFB#D%KZT
MEKKM@'<5\I6B.!IL3P>NF_"0*^6".\C0O97,&I&*90DAL--J=UNUS#2YXGD.
MP^1P&14JU:"%VL=[(M7%0-:45(4XD6I'KA"AWIFWR$GF2/7TT^ 4BSJ*M[58
MKB %WI3K#I:SM*:.75#>II)!YAY]+P\+@B0/.PJ/D"AU.R@MIJ5$,^V5"N4<
MM4P57#2PHFX9JRA)"LDB+[Y[?&C(#>&(0L6*.1T;O)N^783UF40-98*W&A1=
M2TO96K].==MJ*K*<F3Q,(E6P0DI2#Y% 3I/)1 FY<H&$3$O+9A+*I,H+8$2R
M*Y6R.>HP$Z5+_P?418G'&/"6!7\/(:U"$"E&ZT$D<&@:R 2A3.,]LII!Q4DH
M3A0NA(YN'72IG+OGGQ6\DW^2_.32+;'ISNSA=0^N &V)J/2,)@5)"@)C(C/=
M36:+5*XF.@R78#NW)K/:N.:P%H7+@KE(L4R<*[F47TYFZA_5K%R=R1^UL$#1
M.JW$%X;GKBA?72W$J4(/A6O-U0[9>.MSFPVKIK!C&'&M/7[U!8Q%-WPU3KI_
M$%U<"WOR%@2Z5I-#EIN0#Z&6:&?+HC9TO:?U,E# OANY9CD:/-RD"RKB8ZLC
MR,S>7$T7;^B^BGBJ61U"HWY@L]'/<V*7&T7S1(K*<Z+\[]8ONYWM?RQK%X+F
M/:C$\W@]G.3^IZ/>'];/^AK3NF.R@NDBV&I%6%2^3PU>ML70!WKSHC#.:6IY
M*) 1A9H2F6TV>"BK)PMN)UT9SY8XMJDX=HA9192*-G6FZ6N<3[3-0^ *<*H5
MJ+0/A$,74J*FUABOK*J696C90+5\"Q_B9J9,*6+J7U3CP]7O1&I,0NI#S,)X
M$II\;YF2-D/X^5/S_5^HO7CQXI%6"_76U=EGO.3?&?\'4$L#!!0    ( (0Q
MB4]'1HOJ80,  "$,   1    <FUB<RTR,#$Y,3(P-BYX<V2]5EUOTSP4OD?B
M/QQR]2*1N&EAT&@=FMXQ:=(8J S$'7(=M[-P[& [V_KO.7:2-NW:TFZ(W<SU
M.<\YS_ETCM_?%Q)NN;%"JU&4)KT(N&(Z%VHVBBH;4\N$B-Z?/']V_"*.X>S\
MX@IBN'&NM!DA=W=W23X5RFI9.;1@$Z8+ G'<ZO]__16^U=8S.,W1+!SUDZ/D
M79*^1CMC+CFU'/J]=)B\[N(,I]X@Y-3Q#-(^&1*O!(.L-\C2 7S^"!^H==PH
MN!8%[T)U.3=B=N/@/_8R6(8SK127DL_A7"BJF* 2OK247\&%8@F<2@EC#[/(
MRG)SR_.DL7IO\\RR&U[0Y\\ ,&'*9@I-5L4H\IEH$G$_,3+19D9R9XB;EYR@
M4HQ:W @6=:!_QCW 8"6\Q"Z 4VHG =1*0GKB7AH/T@[.%!.[XLS08E+59?*
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M8+SBS@8 R8;Q -1Z01^ D3R\$6.^8B_"OYS^&N#7V-&A_Q2&!OYS24?8JS+
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M-#4W,V1E>#DY,2YH=&U02P$"% ,4    " "$,8E/1T:+ZF$#   A#   $0
M            @ '+&0  <FUB<RTR,#$Y,3(P-BYX<V102P$"% ,4    " "$
M,8E/(!+[<H8&  !*1P  %0              @ %;'0  <FUB<RTR,#$Y,3(P
M-E]L86(N>&UL4$L! A0#%     @ A#&)3Z]KY,K*!   S"P  !4
M     ( !%"0  ')M8G,M,C Q.3$R,#9?<')E+GAM;%!+!08     !0 % #X!
(   1*0     !

end
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>JSON
<SEQUENCE>7
<FILENAME>MetaLinks.json
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
{
 "instance": {
  "d44573d8k.htm": {
   "axisCustom": 0,
   "axisStandard": 0,
   "contextCount": 1,
   "dts": {
    "inline": {
     "local": [
      "d44573d8k.htm"
     ]
    },
    "labelLink": {
     "local": [
      "rmbs-20191206_lab.xml"
     ],
     "remote": [
      "https://xbrl.sec.gov/dei/2019/dei-doc-2019-01-31.xml"
     ]
    },
    "presentationLink": {
     "local": [
      "rmbs-20191206_pre.xml"
     ]
    },
    "referenceLink": {
     "remote": [
      "https://xbrl.sec.gov/dei/2019/dei-ref-2019-01-31.xml"
     ]
    },
    "schema": {
     "local": [
      "rmbs-20191206.xsd"
     ],
     "remote": [
      "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",
      "https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd",
      "http://www.xbrl.org/2005/xbrldt-2005.xsd",
      "http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd",
      "http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd",
      "http://xbrl.sec.gov/sic/2011/sic-2011-01-31.xsd",
      "https://xbrl.sec.gov/naics/2017/naics-2017-01-31.xsd",
      "http://www.xbrl.org/2006/ref-2006-02-27.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": 3,
    "total": 3
   },
   "keyCustom": 0,
   "keyStandard": 97,
   "memberCustom": 0,
   "memberStandard": 0,
   "nsprefix": "rmbs",
   "nsuri": "http://www.rambus.com/20191206",
   "report": {
    "R1": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "div",
       "body",
       "html"
      ],
      "baseRef": "d44573d8k.htm",
      "contextRef": "duration_2019-12-06_to_2019-12-06",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "dei:DocumentType",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "document",
     "isDefault": "true",
     "longName": "100000 - Document - Document and Entity Information",
     "role": "http://www.rambus.com//20191206/taxonomy/role/DocumentDocumentAndEntityInformation",
     "shortName": "Document and Entity Information",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "div",
       "body",
       "html"
      ],
      "baseRef": "d44573d8k.htm",
      "contextRef": "duration_2019-12-06_to_2019-12-06",
      "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.rambus.com//20191206/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "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.rambus.com//20191206/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_CoverAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Cover page.",
        "label": "Cover [Abstract]",
        "terseLabel": "Cover [Abstract]"
       }
      }
     },
     "localname": "CoverAbstract",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "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.rambus.com//20191206/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "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.rambus.com//20191206/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "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.rambus.com//20191206/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "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.rambus.com//20191206/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "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.rambus.com//20191206/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "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.rambus.com//20191206/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "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.rambus.com//20191206/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "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.rambus.com//20191206/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "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.rambus.com//20191206/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "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.rambus.com//20191206/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "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 Country Code",
        "terseLabel": "Entity Incorporation State Country Code"
       }
      }
     },
     "localname": "EntityIncorporationStateCountryCode",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.rambus.com//20191206/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "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.rambus.com//20191206/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "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.rambus.com//20191206/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "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.rambus.com//20191206/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "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.rambus.com//20191206/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "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.rambus.com//20191206/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_Security12bTitle": {
     "auth_ref": [
      "r0"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Title of a 12(b) registered security.",
        "label": "Security 12b Title",
        "terseLabel": "Security 12b Title"
       }
      }
     },
     "localname": "Security12bTitle",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.rambus.com//20191206/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "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.rambus.com//20191206/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "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.rambus.com//20191206/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "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.rambus.com//20191206/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "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.rambus.com//20191206/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "booleanItemType"
    }
   },
   "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>9
<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>11
<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>12
<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?$9/
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M/_RNPKZW;N_^L?%%4+7PZR[4%U!+ P04    " "$,8E/F5R<(Q &  "<)P
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M%U&_*;DW25%R1L5_M\#!W\+H'U!+ P04    " "$,8E/NJ$YBM<!   R!@
M#0   'AL+W-T>6QE<RYX;6S555N+U3 0_BLA/\"<=MD%I2WHPH*@LK#GP=>T
MG;:!W$RGQW9_O4G3V]$'\>"#OC0SWTR^^7*9-.MQDO#2 2 9E=1]3CM$^XZQ
MONI \?Z-L:!]I#%.<?2N:UEO'?"Z#Y.49.GI], 4%YH6F1[4D\*>5&;0F-,3
M9476&+TC=S0"/I4K(!<N<_K(I2B=F'.Y$G**<!J RDCC"'HID-,D(/UK#"?1
M"RH7'B6T<0%DL4+\EDOZ3X'5Z[TKI-P$IC0"168Y(CC]Y)TY>09_"9'%/D_6
M*VP=GY+TGNX3YL$7*8VKP6UE$KI"12:A"7*<:+LPHK$L!!&-\D8M>&LTGS6L
M,Q;#TU8@Y4LXPJ_-%??8D)CSL0['0(**U?2K7LQX7-$)_$>VR'V@O;^)EEAQ
M,?AA\*O1L_]M, C/#AHQSO[8;/4].[=63N^E:+6"N);?%DQN+%AD?*U#.N/$
MJ^<+-Z7R #A*+N!05$?DN^/V#".NMVEL;M6<_H>:__8^MZ#!<7D4[:_^O[S+
M?Z*8+=US:-&K!MU04@Y"HM"+QD[4-41YX87,Z9?P\,JK/MG[U-,C+_T#?L7O
MY];0\$'B<UCQ',SI;G\*+TWRL&6=-XJ<[O9GJ,6@WLX%][]$\0-02P,$%
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M2P$"% ,4    " "$,8E/'R// \     3 @  "P              @ $
M7W)E;',O+G)E;'-02P$"% ,4    " "$,8E/)^B'#H(   "Q    $
M        @ 'I    9&]C4')O<',O87!P+GAM;%!+ 0(4 Q0    ( (0QB4^S
M0T$![@   "L"   1              "  9D!  !D;V-0<F]P<R]C;W)E+GAM
M;%!+ 0(4 Q0    ( (0QB4^97)PC$ 8  )PG   3              "  ;8"
M  !X;"]T:&5M92]T:&5M93$N>&UL4$L! A0#%     @ A#&)3^O@DPBH @
M^0L  !@              ( !]P@  'AL+W=O<FMS:&5E=',O<VAE970Q+GAM
M;%!+ 0(4 Q0    ( (0QB4]&J1'F20(  !P&   4              "  =4+
M  !X;"]S:&%R9613=')I;F=S+GAM;%!+ 0(4 Q0    ( (0QB4^ZH3F*UP$
M #(&   -              "  5 .  !X;"]S='EL97,N>&UL4$L! A0#%
M  @ A#&)3Q9M(W]# 0  / (   \              ( !4A   'AL+W=O<FMB
M;V]K+GAM;%!+ 0(4 Q0    ( (0QB4__P"8(O0   (4"   :
M  "  <(1  !X;"]?<F5L<R]W;W)K8F]O:RYX;6PN<F5L<U!+ 0(4 Q0    (
M (0QB4\+C]@#(0$  %<$   3              "  ;<2  !;0V]N=&5N=%]4
?>7!E<UTN>&UL4$L%!@     *  H @ (   D4      $!

end
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>13
<FILENAME>FilingSummary.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<XML>
<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.19.3.a.u2</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="d44573d8k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>100000 - Document - Document and Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.rambus.com//20191206/taxonomy/role/DocumentDocumentAndEntityInformation</Role>
      <ShortName>Document and Entity Information</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" original="d44573d8k.htm">d44573d8k.htm</File>
    <File>d44573dex991.htm</File>
    <File>rmbs-20191206.xsd</File>
    <File>rmbs-20191206_lab.xml</File>
    <File>rmbs-20191206_pre.xml</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy>http://xbrl.sec.gov/dei/2019-01-31</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>false</HasCalculationLinkbase>
</FilingSummary>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>14
<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.a.u2</span><table class="report" border="0" cellspacing="2" id="idp6627322592">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Document and Entity Information<br></strong></div></th>
<th class="th"><div>Dec. 06, 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_dei_CoverAbstract', window );"><strong>Cover [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_EntityRegistrantName', window );">Entity Registrant Name</a></td>
<td class="text">RAMBUS INC<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_AmendmentFlag', window );">Amendment Flag</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_EntityCentralIndexKey', window );">Entity Central Index Key</a></td>
<td class="text">0000917273<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_DocumentType', window );">Document Type</a></td>
<td class="text">8-K<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_DocumentPeriodEndDate', window );">Document Period End Date</a></td>
<td class="text">Dec.  06,  2019<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 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">000-22339<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">94-3112828<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">1050 Enterprise Way<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 700<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">Sunnyvale<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">94089<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">(408)<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">462-8000<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 );">Security 12b Title</a></td>
<td class="text">Common stock<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">RMBS<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>
</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_CoverAbstract">
<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;">dei_CoverAbstract</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: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>
<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>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>15
<FILENAME>d44573d8k_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="rmbs-20191206.xsd" xlink:type="simple"/>
    <context id="duration_2019-12-06_to_2019-12-06">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000917273</identifier>
        </entity>
        <period>
            <startDate>2019-12-06</startDate>
            <endDate>2019-12-06</endDate>
        </period>
    </context>
    <dei:EntityRegistrantName
      contextRef="duration_2019-12-06_to_2019-12-06"
      id="Hidden_dei_EntityRegistrantName">RAMBUS INC</dei:EntityRegistrantName>
    <dei:AmendmentFlag contextRef="duration_2019-12-06_to_2019-12-06">false</dei:AmendmentFlag>
    <dei:EntityCentralIndexKey
      contextRef="duration_2019-12-06_to_2019-12-06"
      id="Hidden_dei_EntityCentralIndexKey">0000917273</dei:EntityCentralIndexKey>
    <dei:DocumentType contextRef="duration_2019-12-06_to_2019-12-06">8-K</dei:DocumentType>
    <dei:DocumentPeriodEndDate contextRef="duration_2019-12-06_to_2019-12-06">2019-12-06</dei:DocumentPeriodEndDate>
    <dei:EntityIncorporationStateCountryCode contextRef="duration_2019-12-06_to_2019-12-06">DE</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber contextRef="duration_2019-12-06_to_2019-12-06">000-22339</dei:EntityFileNumber>
    <dei:EntityTaxIdentificationNumber contextRef="duration_2019-12-06_to_2019-12-06">94-3112828</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressAddressLine1 contextRef="duration_2019-12-06_to_2019-12-06">1050 Enterprise Way</dei:EntityAddressAddressLine1>
    <dei:EntityAddressAddressLine2 contextRef="duration_2019-12-06_to_2019-12-06">Suite 700</dei:EntityAddressAddressLine2>
    <dei:EntityAddressCityOrTown contextRef="duration_2019-12-06_to_2019-12-06">Sunnyvale</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince contextRef="duration_2019-12-06_to_2019-12-06">CA</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode contextRef="duration_2019-12-06_to_2019-12-06">94089</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode contextRef="duration_2019-12-06_to_2019-12-06">(408)</dei:CityAreaCode>
    <dei:LocalPhoneNumber contextRef="duration_2019-12-06_to_2019-12-06">462-8000</dei:LocalPhoneNumber>
    <dei:WrittenCommunications contextRef="duration_2019-12-06_to_2019-12-06">false</dei:WrittenCommunications>
    <dei:SolicitingMaterial contextRef="duration_2019-12-06_to_2019-12-06">false</dei:SolicitingMaterial>
    <dei:PreCommencementTenderOffer contextRef="duration_2019-12-06_to_2019-12-06">false</dei:PreCommencementTenderOffer>
    <dei:PreCommencementIssuerTenderOffer contextRef="duration_2019-12-06_to_2019-12-06">false</dei:PreCommencementIssuerTenderOffer>
    <dei:Security12bTitle contextRef="duration_2019-12-06_to_2019-12-06">Common stock</dei:Security12bTitle>
    <dei:TradingSymbol contextRef="duration_2019-12-06_to_2019-12-06">RMBS</dei:TradingSymbol>
    <dei:SecurityExchangeName contextRef="duration_2019-12-06_to_2019-12-06">NASDAQ</dei:SecurityExchangeName>
    <dei:EntityEmergingGrowthCompany contextRef="duration_2019-12-06_to_2019-12-06">false</dei:EntityEmergingGrowthCompany>
</xbrl>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
