<SEC-DOCUMENT>0001564590-21-018899.txt : 20210415
<SEC-HEADER>0001564590-21-018899.hdr.sgml : 20210415
<ACCEPTANCE-DATETIME>20210415070035
ACCESSION NUMBER:		0001564590-21-018899
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		12
CONFORMED PERIOD OF REPORT:	20210414
ITEM INFORMATION:		Other Events
FILED AS OF DATE:		20210415
DATE AS OF CHANGE:		20210415

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SUTRO BIOPHARMA, INC.
		CENTRAL INDEX KEY:			0001382101
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		IRS NUMBER:				452441988
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38662
		FILM NUMBER:		21827258

	BUSINESS ADDRESS:	
		STREET 1:		310 UTAH AVE., SUITE 150
		CITY:			SOUTH SAN FRANCISCO
		STATE:			CA
		ZIP:			94080
		BUSINESS PHONE:		650-392-8412

	MAIL ADDRESS:	
		STREET 1:		310 UTAH AVE., SUITE 150
		CITY:			SOUTH SAN FRANCISCO
		STATE:			CA
		ZIP:			94080

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SUTRO BIOPHARMA INC
		DATE OF NAME CHANGE:	20061127
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>stro-8k_20210414.htm
<DESCRIPTION>8-K
<TEXT>
<XBRL>
<?xml  version="1.0" encoding="utf-8"?>
<!-- DFIN ActiveDisclosure(SM) Inline XBRL Document - http://www.dfinsolutions.com/ -->
<!-- Creation Date      : 2021-04-13T19:46:59.2642024+00:00 -->
<!-- Version            : 5.0.1.571 -->
<!-- Package ID         : fd2140f7c4d24d0a98d4068b640e3b36 -->
<!-- Copyright (c) 2021 Donnelley Financial Solutions, Inc. All Rights Reserved. -->
<html xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xbrldi="http://xbrl.org/2006/xbrldi" xmlns:stro="http://www.sutrobio.com/20210414" xmlns:us-types="http://fasb.org/us-types/2020-01-31" xmlns:us-gaap="http://fasb.org/us-gaap/2020-01-31" xmlns:stpr="http://xbrl.sec.gov/stpr/2018-01-31" xmlns:srt-types="http://fasb.org/srt-types/2020-01-31" xmlns:srt="http://fasb.org/srt/2020-01-31" xmlns:sic="http://xbrl.sec.gov/sic/2020-01-31" xmlns:naics="http://xbrl.sec.gov/naics/2017-01-31" xmlns:exch="http://xbrl.sec.gov/exch/2020-01-31" xmlns:num="http://www.xbrl.org/dtr/type/numeric" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:dei-std="http://xbrl.sec.gov/dei-std/2020-01-31" xmlns:dei-ent-std="http://xbrl.sec.gov/dei-ent-std/2020-01-31" xmlns:dei="http://xbrl.sec.gov/dei/2020-01-31" xmlns:currency="http://xbrl.sec.gov/currency/2020-01-31" xmlns:country="http://xbrl.sec.gov/country/2020-01-31" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:utr="http://www.xbrl.org/2009/utr" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:iso4217="http://www.xbrl.org/2003/iso4217" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 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="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html" />
<title>
stro-8k_20210414.DOCX.htm
</title>
</head>
<!-- NG Converter v5.0.2.50 -->
<body><div style="display:none">
	<ix:header>
		<ix:hidden>
			<ix:nonNumeric id="F_000001" name="dei:AmendmentFlag" contextRef="C_0001382101_20210414_20210414">false</ix:nonNumeric>
			<ix:nonNumeric id="F_000004" name="dei:EntityCentralIndexKey" contextRef="C_0001382101_20210414_20210414">0001382101</ix:nonNumeric>
		</ix:hidden>
		<ix:references>
			<link:schemaRef xlink:type="simple" xlink:href="stro-20210414.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="C_0001382101_20210414_20210414">
				<xbrli:entity>
					<xbrli:identifier scheme="http://www.sec.gov/CIK">0001382101</xbrli:identifier>
				</xbrli:entity>
				<xbrli:period>
					<xbrli:startDate>2021-04-14</xbrli:startDate>
					<xbrli:endDate>2021-04-14</xbrli:endDate>
				</xbrli:period>
			</xbrli:context>
		</ix:resources>
	</ix:header>
</div>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:12pt;">&#160;</p>
<p style="margin-bottom:0pt;margin-top:0pt;border-bottom:Double 2.25pt;padding-bottom:1pt;text-indent:0%;font-family:Times New Roman;font-weight:bold;;font-size:6pt;">&#160;</p>
<p style="text-align:center;margin-top:6pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-size:18pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">UNITED STATES</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-size:18pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">SECURITIES AND EXCHANGE COMMISSION</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-family:Times New Roman;font-size:12pt;font-style:normal;text-transform:none;font-variant: normal;">Washington, D.C. 20549 </p>
<p style="text-align:center;border-bottom:Solid 1pt;padding-bottom:1pt;margin-bottom:0pt;margin-top:0pt;margin-left:40%;margin-right:40%;text-indent:0%;font-family:Times New Roman;font-size:9pt;">&#160;</p>
<p style="text-align:center;margin-top:9pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-size:18pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">FORM <ix:nonNumeric id="F_000000" name="dei:DocumentType" contextRef="C_0001382101_20210414_20210414">8-K</ix:nonNumeric> </p>
<p style="text-align:center;border-bottom:Solid 1pt;padding-bottom:1pt;margin-bottom:0pt;margin-top:0pt;margin-left:40%;margin-right:40%;text-indent:0%;font-family:Times New Roman;font-size:9pt;">&#160;</p>
<p style="text-align:center;margin-top:9pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-family:Times New Roman;font-size:12pt;font-style:normal;text-transform:none;font-variant: normal;">CURRENT REPORT </p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-family:Times New Roman;font-size:12pt;font-style:normal;text-transform:none;font-variant: normal;">Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 </p>
<p style="text-align:center;margin-top:9pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-family:Times New Roman;font-size:12pt;font-style:normal;text-transform:none;font-variant: normal;">Date of Report (Date of earliest event reported): <ix:nonNumeric id="F_000002" name="dei:DocumentPeriodEndDate" contextRef="C_0001382101_20210414_20210414" format="ixt:datemonthdayyearen">April 14, 2021</ix:nonNumeric></p>
<p style="text-align:center;border-bottom:Solid 1pt;padding-bottom:1pt;margin-bottom:0pt;margin-top:0pt;margin-left:40%;margin-right:40%;text-indent:0%;font-family:Times New Roman;font-size:9pt;">&#160;</p>
<p style="text-align:center;margin-top:9pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-size:24pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"><ix:nonNumeric id="F_000003" name="dei:EntityRegistrantName" contextRef="C_0001382101_20210414_20210414">SUTRO BIOPHARMA, INC.</ix:nonNumeric></p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">(Exact name of registrant as specified in its charter) </p>
<p style="text-align:center;border-bottom:Solid 1pt;padding-bottom:1pt;margin-bottom:0pt;margin-top:0pt;margin-left:40%;margin-right:40%;text-indent:0%;font-family:Times New Roman;font-size:9pt;">&#160;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:9pt;">&#160;</p>
<div>
<table border="0" cellspacing="0" cellpadding="0" style="margin:auto;border-collapse:collapse; width:100%;">
<tr>
<td valign="bottom" style="width:33.34%;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"><ix:nonNumeric id="F_000008" name="dei:EntityIncorporationStateCountryCode" contextRef="C_0001382101_20210414_20210414" format="ixt-sec:stateprovnameen">Delaware</ix:nonNumeric></p></td>
<td valign="bottom" style="width:33.34%;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"><ix:nonNumeric id="F_000007" name="dei:EntityFileNumber" contextRef="C_0001382101_20210414_20210414">001-38662</ix:nonNumeric></p></td>
<td valign="bottom" style="width:33.32%;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"><ix:nonNumeric id="F_000009" name="dei:EntityTaxIdentificationNumber" contextRef="C_0001382101_20210414_20210414">47-0926186</ix:nonNumeric></p></td>
</tr>
<tr>
<td valign="bottom" style="width:33.34%;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">(State or other jurisdiction</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">of Incorporation)</p></td>
<td valign="bottom" style="width:33.34%;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">(Commission </p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">File Number)</p></td>
<td valign="bottom" style="width:33.32%;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">(IRS Employer</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Identification No.)</p></td>
</tr>
</table></div>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;">&#160;</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"><ix:nonNumeric id="F_000010" name="dei:EntityAddressAddressLine1" contextRef="C_0001382101_20210414_20210414">310 Utah Avenue</ix:nonNumeric>, <ix:nonNumeric id="F_000011" name="dei:EntityAddressAddressLine2" contextRef="C_0001382101_20210414_20210414">Suite 150</ix:nonNumeric>,</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"><ix:nonNumeric id="F_000012" name="dei:EntityAddressCityOrTown" contextRef="C_0001382101_20210414_20210414">South San Francisco</ix:nonNumeric>, <ix:nonNumeric id="F_000013" name="dei:EntityAddressStateOrProvince" contextRef="C_0001382101_20210414_20210414" format="ixt-sec:stateprovnameen">California</ix:nonNumeric>, <ix:nonNumeric id="F_000014" name="dei:EntityAddressPostalZipCode" contextRef="C_0001382101_20210414_20210414">94080</ix:nonNumeric></p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">(Address of principal executive offices) (Zip Code)</p>
<p style="text-align:center;margin-top:9pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">(<ix:nonNumeric id="F_000015" name="dei:CityAreaCode" contextRef="C_0001382101_20210414_20210414">650</ix:nonNumeric>) <ix:nonNumeric id="F_000016" name="dei:LocalPhoneNumber" contextRef="C_0001382101_20210414_20210414">392-8412</ix:nonNumeric></p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">(Registrant&#8217;s telephone number, including area code) </p>
<p style="text-align:center;margin-top:9pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Not Applicable</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">(Former name or former address, if changed since last report) </p>
<p style="text-align:center;border-bottom:Solid 1pt;padding-bottom:1pt;margin-bottom:0pt;margin-top:0pt;margin-left:40%;margin-right:40%;text-indent:0%;font-family:Times New Roman;font-size:9pt;">&#160;</p>
<p style="margin-top:9pt;margin-bottom:0pt;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">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>
<div style="align:left;">
<table border="0" cellspacing="0" cellpadding="0" style="border-collapse:collapse; width:100%;">
<tr>
<td valign="top" style="width:4.54%;white-space:nowrap">
<p style="margin-top:6pt;margin-bottom:0pt;font-size:10pt;font-family:Segoe UI Symbol;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><span style="font-size:10pt;font-family:Segoe UI Symbol;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><ix:nonNumeric id="F_000017" name="dei:WrittenCommunications" contextRef="C_0001382101_20210414_20210414" format="ixt-sec:boolballotbox">&#9744;</ix:nonNumeric></span></p></td>
<td valign="top">
<p style="margin-top:6pt;margin-bottom:0pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;font-family:Times New Roman;font-size:10pt;">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) </p></td></tr></table></div>
<div style="align:left;">
<table border="0" cellspacing="0" cellpadding="0" style="border-collapse:collapse; width:100%;">
<tr>
<td valign="top" style="width:4.54%;white-space:nowrap">
<p style="margin-top:6pt;margin-bottom:0pt;font-size:10pt;font-family:Segoe UI Symbol;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><span style="font-size:10pt;font-family:Segoe UI Symbol;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><ix:nonNumeric id="F_000018" name="dei:SolicitingMaterial" contextRef="C_0001382101_20210414_20210414" format="ixt-sec:boolballotbox">&#9744;</ix:nonNumeric></span></p></td>
<td valign="top">
<p style="margin-top:6pt;margin-bottom:0pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;font-family:Times New Roman;font-size:10pt;">Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) </p></td></tr></table></div>
<div style="align:left;">
<table border="0" cellspacing="0" cellpadding="0" style="border-collapse:collapse; width:100%;">
<tr>
<td valign="top" style="width:4.54%;white-space:nowrap">
<p style="margin-top:6pt;margin-bottom:0pt;font-size:10pt;font-family:Segoe UI Symbol;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><span style="font-size:10pt;font-family:Segoe UI Symbol;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><ix:nonNumeric id="F_000019" name="dei:PreCommencementTenderOffer" contextRef="C_0001382101_20210414_20210414" format="ixt-sec:boolballotbox">&#9744;</ix:nonNumeric></span></p></td>
<td valign="top">
<p style="margin-top:6pt;margin-bottom:0pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;font-family:Times New Roman;font-size:10pt;">Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) </p></td></tr></table></div>
<div style="align:left;">
<table border="0" cellspacing="0" cellpadding="0" style="border-collapse:collapse; width:100%;">
<tr>
<td valign="top" style="width:4.54%;white-space:nowrap">
<p style="margin-top:6pt;margin-bottom:0pt;font-size:10pt;font-family:Segoe UI Symbol;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><span style="font-size:10pt;font-family:Segoe UI Symbol;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><ix:nonNumeric id="F_000020" name="dei:PreCommencementIssuerTenderOffer" contextRef="C_0001382101_20210414_20210414" format="ixt-sec:boolballotbox">&#9744;</ix:nonNumeric></span></p></td>
<td valign="top">
<p style="margin-top:6pt;margin-bottom:0pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;font-family:Times New Roman;font-size:10pt;">Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) </p></td></tr></table></div>
<p style="margin-top:9pt;margin-bottom:0pt;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Securities registered pursuant to Section 12(b) of the Act:</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-weight:bold;;font-size:10pt;">&#160;</p>
<div>
<table border="0" cellspacing="0" cellpadding="0" style="margin:auto;border-collapse:collapse; width:100%;">
<tr>
<td valign="bottom" style="width:40%; border-bottom:solid 0.75pt #000000;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Title of each class</p></td>
<td valign="top" style="width:1%; border-bottom:solid 0.75pt transparent;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-weight:bold;;font-size:10pt;">&#160;</p></td>
<td valign="top" style="width:18%; border-bottom:solid 0.75pt #000000;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Trading Symbol(s)</p></td>
<td valign="top" style="width:1%; border-bottom:solid 0.75pt transparent;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-weight:bold;;font-size:10pt;">&#160;</p></td>
<td valign="bottom" style="width:40%; border-bottom:solid 0.75pt #000000;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Name of each exchange on which registered</p></td>
</tr>
<tr>
<td valign="top" style="width:40%; border-top:solid 0.75pt #000000;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><ix:nonNumeric id="F_000021" name="dei:Security12bTitle" contextRef="C_0001382101_20210414_20210414">Common Stock, $0.001 par value</ix:nonNumeric></p></td>
<td valign="top" style="width:1%;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;">&#160;</p></td>
<td valign="top" style="width:18%; border-top:solid 0.75pt #000000;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><ix:nonNumeric id="F_000022" name="dei:TradingSymbol" contextRef="C_0001382101_20210414_20210414">STRO</ix:nonNumeric></p></td>
<td valign="top" style="width:1%;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;">&#160;</p></td>
<td valign="top" style="width:40%; border-top:solid 0.75pt #000000;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><ix:nonNumeric id="F_000023" name="dei:SecurityExchangeName" contextRef="C_0001382101_20210414_20210414" format="ixt-sec:exchnameen">The Nasdaq Global Market</ix:nonNumeric></p></td>
</tr>
</table></div>
<p style="margin-top:9pt;margin-bottom:0pt;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (&#167;&#8201;230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (&#167;&#8201;240.12b-2 of this chapter). </p>
<p style="margin-top:6pt;margin-bottom:0pt;margin-left:66.67%;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Emerging growth company&#160;<span style="font-size:9pt;font-family:Segoe UI Symbol;"><ix:nonNumeric id="F_000005" name="dei:EntityEmergingGrowthCompany" contextRef="C_0001382101_20210414_20210414" format="ixt-sec:boolballotbox">&#9746;</ix:nonNumeric></span></p>
<p style="margin-top:6pt;margin-bottom:0pt;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">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;<span style="font-family:Segoe UI Symbol;"><ix:nonNumeric id="F_000006" name="dei:EntityExTransitionPeriod" contextRef="C_0001382101_20210414_20210414" format="ixt-sec:boolballotbox">&#9744;</ix:nonNumeric></span></p>
<p style="border-bottom:Double 2.25pt;padding-bottom:1pt;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:6pt;">&#160;</p>
<p style="margin-top:6pt;margin-bottom:0pt;text-indent:0%;font-family:Times New Roman;font-weight:bold;;font-size:10pt;">&#160;</p>
<p style="margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-family:Times New Roman;font-size:12pt;">&#160;</p>
<hr style="page-break-after:always" />
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:12pt;">&#160;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:12pt;">&#160;</p>
<p style="margin-top:6pt;margin-bottom:0pt;text-indent:0%;font-family:Times New Roman;font-weight:bold;;font-size:10pt;">&#160;</p>
<p style="margin-bottom:0pt;margin-top:6pt;text-indent:0%;font-weight:bold;color:#000000;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"><span style="Background-color:#FFFFFF;">Item 8.01 Other Events.</span></p>
<p style="margin-bottom:0pt;margin-top:6pt;text-indent:6.67%;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><span style="Background-color:#FFFFFF;">On April 14, 2021, Sutro Biopharma, Inc. (the &#8220;Company&#8221;)&#160;announced </span><span style="color:#000000;">that </span><span style="Background-color:#FFFFFF;">Merck,</span><span style="color:#000000;"> known as MSD outside the United States and Canada, will make to the Company a $15 million milestone payment for the initiation of an IND enabling toxicology study for the first program in its collaboration to develop novel cytokine derivative therapeutics for cancer and autoimmune disorders.</span></p>
<p style="margin-bottom:0pt;margin-top:6pt;text-indent:0%;font-size:10pt;">&#160;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-style:italic;color:#000000;font-size:10pt;font-weight:bold;font-family:Times New Roman;text-transform:none;font-variant: normal;">Forward-Looking Statements </p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:6.67%;font-style:italic;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;text-transform:none;font-variant: normal;">This communication contains forward-looking statements within the meaning of the &#8220;safe harbor&#8221; provisions of the Private Securities Litigation Reform Act of 1995, including, but not limited to, anticipated preclinical and clinical development activities, timing of announcements of clinical results, potential benefits of the company&#8217;s product candidates and platform and potential market opportunities for the company&#8217;s product candidates. All statements other than statements of historical fact are statements that could be deemed forward-looking statements. Although the company believes that the expectations reflected in such forward-looking statements are reasonable, the company cannot guarantee future events, results, actions, levels of activity, performance or achievements, and the timing and results of biotechnology development and potential regulatory approval is inherently uncertain. Forward-looking statements are subject to risks and uncertainties that may cause the company&#8217;s actual activities or results to differ significantly from those expressed in any forward-looking statement, including risks and uncertainties related to the company&#8217;s ability to advance its product candidates, the receipt and timing of potential regulatory designations, approvals and commercialization of product candidates, the impact of the COVID-19 pandemic on the Company&#8217;s business, clinical trial sites, supply chain and manufacturing facilities, the Company&#8217;s ability to maintain and recognize the benefits of certain designations received by product candidates, the timing and results of preclinical and clinical trials, the Company&#8217;s ability to fund development activities and achieve development goals, the Company&#8217;s ability to protect intellectual property, the value of the Company&#8217;s holdings of Vaxcyte common stock, and the Company&#8217;s commercial collaborations with third parties and other risks and uncertainties described under the heading &#8220;Risk Factors&#8221; in documents the company files from time to time with the Securities and Exchange Commission. These forward-looking statements speak only as of the date of this communication, and the Company undertakes no obligation to revise or update any forward-looking statements to reflect events or circumstances after the date hereof.</p>
<p style="margin-bottom:0pt;margin-top:6pt;text-indent:0%;font-size:10pt;">&#160;</p>
<p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;font-size:10pt;">&#160;</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:6pt;text-indent:0%;font-size:10pt;">&#160;</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:6pt;text-indent:0%;font-size:10pt;">&#160;</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:6pt;text-indent:0%;font-size:10pt;">&#160;</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:6pt;text-indent:0%;font-size:10pt;">&#160;</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:6pt;text-indent:0%;font-size:10pt;">&#160;</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:6pt;text-indent:0%;font-size:10pt;">&#160;</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:6pt;text-indent:0%;font-size:10pt;">&#160;</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:6pt;text-indent:0%;font-weight:bold;;font-size:10pt;">&#160;</p>
<p style="margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-family:Times New Roman;font-size:12pt;">&#160;</p>
<hr style="page-break-after:always" />
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:12pt;">&#160;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:12pt;">&#160;</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:6pt;text-indent:0%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">SIGNATURE</p>
<p style="margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;">&#160;</p>
<div>
<table border="0" cellspacing="0" cellpadding="0" style="margin:auto;border-collapse:collapse; width:100%;">
<tr>
<td valign="top" style="background-color:#FFFFFF;padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:60%;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&#160;</p></td>
<td colspan="2" valign="bottom" style="background-color:#FFFFFF;padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:40%;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;">Sutro Biopharma, Inc.</p></td>
</tr>
<tr>
<td valign="middle" style="background-color:#FFFFFF;padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:60%;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&#160;</p></td>
<td valign="bottom" style="background-color:#FFFFFF;padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:3.34%;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&#160;</p></td>
<td valign="bottom" style="background-color:#FFFFFF;padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:36.66%;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&#160;</p></td>
</tr>
<tr style="height:13.2pt;">
<td valign="bottom" style="background-color:#FFFFFF;padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:60%; border-bottom:solid 0.75pt transparent;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Date: April 14, 2021</p></td>
<td valign="top" style="background-color:#FFFFFF;padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:3.34%; border-bottom:solid 0.75pt transparent;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">By:</p></td>
<td valign="bottom" style="background-color:#FFFFFF;padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:36.66%; border-bottom:solid 0.75pt #000000;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">/s/&#160;Edward Albini</p></td>
</tr>
<tr>
<td valign="bottom" style="background-color:#FFFFFF;padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:60%;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&#160;</p></td>
<td valign="middle" style="background-color:#FFFFFF;padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:3.34%;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;">&#160;</p></td>
<td valign="bottom" style="background-color:#FFFFFF;padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:36.66%; border-top:solid 0.75pt #000000;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;">Edward Albini</p></td>
</tr>
<tr>
<td valign="bottom" style="background-color:#FFFFFF;padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:60%;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&#160;</p></td>
<td valign="bottom" style="background-color:#FFFFFF;padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:3.34%;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;">&#160;</p></td>
<td valign="bottom" style="background-color:#FFFFFF;padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:36.66%;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;">Chief Financial Officer</p></td>
</tr>
</table></div>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;">&#160;</p>
<p style="margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-family:Times New Roman;font-size:12pt;">&#160;</p></body>
</html>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.SCH
<SEQUENCE>2
<FILENAME>stro-20210414.xsd
<DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA
<TEXT>
<XBRL>
<?xml version="1.0" encoding="us-ascii"?>
<!-- DFIN ActiveDisclosure(SM) XBRL Schema Document - http://www.dfinsolutions.com/ -->
<!-- Creation Date      : 2021-04-13T19:46:59.2642024+00:00 -->
<!-- Version            : 5.0.1.571 -->
<!-- Package ID         : fd2140f7c4d24d0a98d4068b640e3b36 -->
<!-- Copyright (c) 2021 Donnelley Financial Solutions, Inc. All Rights Reserved. -->
<xsd:schema xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:dei="http://xbrl.sec.gov/dei/2020-01-31" xmlns:num="http://www.xbrl.org/dtr/type/numeric" xmlns:us-types="http://fasb.org/us-types/2020-01-31" xmlns:stpr="http://xbrl.sec.gov/stpr/2018-01-31" xmlns:srt-types="http://fasb.org/srt-types/2020-01-31" xmlns:sic="http://xbrl.sec.gov/sic/2020-01-31" xmlns:stro="http://www.sutrobio.com/20210414" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:srt="http://fasb.org/srt/2020-01-31" xmlns:us-gaap="http://fasb.org/us-gaap/2020-01-31" xmlns:naics="http://xbrl.sec.gov/naics/2017-01-31" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:country="http://xbrl.sec.gov/country/2020-01-31" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:currency="http://xbrl.sec.gov/currency/2020-01-31" xmlns:exch="http://xbrl.sec.gov/exch/2020-01-31" attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.sutrobio.com/20210414" 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="http://www.xbrl.org/2005/xbrldt-2005.xsd" namespace="http://xbrl.org/2005/xbrldt" />
  <xsd:import schemaLocation="https://xbrl.sec.gov/country/2020/country-2020-01-31.xsd" namespace="http://xbrl.sec.gov/country/2020-01-31" />
  <xsd:import schemaLocation="https://xbrl.sec.gov/currency/2020/currency-2020-01-31.xsd" namespace="http://xbrl.sec.gov/currency/2020-01-31" />
  <xsd:import schemaLocation="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd" namespace="http://xbrl.sec.gov/dei/2020-01-31" />
  <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://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd" namespace="http://www.xbrl.org/dtr/type/numeric" />
  <xsd:import schemaLocation="https://xbrl.sec.gov/exch/2020/exch-2020-01-31.xsd" namespace="http://xbrl.sec.gov/exch/2020-01-31" />
  <xsd:import schemaLocation="http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd" namespace="http://www.xbrl.org/2009/arcrole/fact-explanatoryFact" />
  <xsd:import schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd" namespace="http://www.xbrl.org/2009/role/negated" />
  <xsd:import schemaLocation="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd" namespace="http://www.xbrl.org/2009/role/net" />
  <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="https://xbrl.sec.gov/sic/2020/sic-2020-01-31.xsd" namespace="http://xbrl.sec.gov/sic/2020-01-31" />
  <xsd:import schemaLocation="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd" namespace="http://fasb.org/srt/2020-01-31" />
  <xsd:import schemaLocation="http://xbrl.fasb.org/srt/2020/elts/srt-roles-2020-01-31.xsd" namespace="http://fasb.org/srt-roles/2020-01-31" />
  <xsd:import schemaLocation="http://xbrl.fasb.org/srt/2020/elts/srt-types-2020-01-31.xsd" namespace="http://fasb.org/srt-types/2020-01-31" />
  <xsd:import schemaLocation="https://xbrl.sec.gov/stpr/2018/stpr-2018-01-31.xsd" namespace="http://xbrl.sec.gov/stpr/2018-01-31" />
  <xsd:import schemaLocation="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd" namespace="http://fasb.org/us-gaap/2020-01-31" />
  <xsd:import schemaLocation="http://xbrl.fasb.org/us-gaap/2020/elts/us-roles-2020-01-31.xsd" namespace="http://fasb.org/us-roles/2020-01-31" />
  <xsd:import schemaLocation="http://xbrl.fasb.org/us-gaap/2020/elts/us-types-2020-01-31.xsd" namespace="http://fasb.org/us-types/2020-01-31" />
  <xsd:annotation>
    <xsd:appinfo>
      <link:roleType id="TemplateLink" roleURI="http://www.sutrobio.com/20210414/role/TemplateLink" xmlns:link="http://www.xbrl.org/2003/linkbase">
        <link:definition>00000 - Document - Template Link</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="stro-20210414_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="stro-20210414_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:title="Presentation Links, all" xlink:type="simple" />
      <link:roleType roleURI="http://www.sutrobio.com/20210414/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>3
<FILENAME>stro-20210414_lab.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE
<TEXT>
<XBRL>
<?xml version="1.0" encoding="us-ascii" standalone="yes"?>
<!-- DFIN ActiveDisclosure(SM) XBRL Linkbase Document - http://www.dfinsolutions.com/ -->
<!-- Creation Date      : 2021-04-13T19:46:59.2642024+00:00 -->
<!-- Version            : 5.0.1.571 -->
<!-- Package ID         : fd2140f7c4d24d0a98d4068b640e3b36 -->
<!-- Copyright (c) 2021 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:roleRef roleURI="http://www.xbrl.org/2009/role/negatedLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedNetLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedNetLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodEndLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodStartLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTerseLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/netLabel" xlink:href="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd#netLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://fasb.org/us-gaap/role/label/axisDefault" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-roles-2020-01-31.xsd#axisDefault" xlink:type="simple" />
  <link:labelLink xlink:role="http://www.xbrl.org/2003/role/link" xlink:type="extended">
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityCentralIndexKey" xlink:type="locator" xlink:label="dei_EntityCentralIndexKey" />
    <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:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCentralIndexKey" xlink:to="dei_EntityCentralIndexKey_lbl" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_CoverAbstract" xlink:type="locator" xlink:label="dei_CoverAbstract" />
    <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:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_CoverAbstract" xlink:to="dei_CoverAbstract_lbl" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_DocumentType" xlink:type="locator" xlink:label="dei_DocumentType" />
    <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: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:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_AmendmentFlag" xlink:type="locator" xlink:label="dei_AmendmentFlag" />
    <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: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:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_DocumentPeriodEndDate" xlink:type="locator" xlink:label="dei_DocumentPeriodEndDate" />
    <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: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:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityRegistrantName" xlink:type="locator" xlink:label="dei_EntityRegistrantName" />
    <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: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_EntityCentralIndexKey_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Central Index Key</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityEmergingGrowthCompany" xlink:type="locator" xlink:label="dei_EntityEmergingGrowthCompany" />
    <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: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:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityExTransitionPeriod" xlink:type="locator" xlink:label="dei_EntityExTransitionPeriod" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityExTransitionPeriod_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Ex Transition Period</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityExTransitionPeriod" xlink:to="dei_EntityExTransitionPeriod_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityExTransitionPeriod_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Ex Transition Period</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityFileNumber" xlink:type="locator" xlink:label="dei_EntityFileNumber" />
    <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: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:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityIncorporationStateCountryCode" xlink:type="locator" xlink:label="dei_EntityIncorporationStateCountryCode" />
    <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 or Country Code</link:label>
    <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:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityTaxIdentificationNumber" xlink:type="locator" xlink:label="dei_EntityTaxIdentificationNumber" />
    <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: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:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityAddressAddressLine1" xlink:type="locator" xlink:label="dei_EntityAddressAddressLine1" />
    <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: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 Line1</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityAddressAddressLine2" xlink:type="locator" xlink:label="dei_EntityAddressAddressLine2" />
    <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: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 Line2</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityAddressCityOrTown" xlink:type="locator" xlink:label="dei_EntityAddressCityOrTown" />
    <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: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:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityAddressStateOrProvince" xlink:type="locator" xlink:label="dei_EntityAddressStateOrProvince" />
    <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: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:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityAddressPostalZipCode" xlink:type="locator" xlink:label="dei_EntityAddressPostalZipCode" />
    <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: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:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_CityAreaCode" xlink:type="locator" xlink:label="dei_CityAreaCode" />
    <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: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:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LocalPhoneNumber" xlink:type="locator" xlink:label="dei_LocalPhoneNumber" />
    <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: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:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_WrittenCommunications" xlink:type="locator" xlink:label="dei_WrittenCommunications" />
    <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: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:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_SolicitingMaterial" xlink:type="locator" xlink:label="dei_SolicitingMaterial" />
    <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: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:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_PreCommencementTenderOffer" xlink:type="locator" xlink:label="dei_PreCommencementTenderOffer" />
    <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: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:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_PreCommencementIssuerTenderOffer" xlink:type="locator" xlink:label="dei_PreCommencementIssuerTenderOffer" />
    <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: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:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_Security12bTitle" xlink:type="locator" xlink:label="dei_Security12bTitle" />
    <link:label xml:lang="en-US" xlink:label="dei_Security12bTitle_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Title of 12(b) Security</link:label>
    <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">Security12b Title</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_TradingSymbol" xlink:type="locator" xlink:label="dei_TradingSymbol" />
    <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: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:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_SecurityExchangeName" xlink:type="locator" xlink:label="dei_SecurityExchangeName" />
    <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: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:labelLink>
</link:linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>4
<FILENAME>stro-20210414_pre.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE
<TEXT>
<XBRL>
<?xml version="1.0" encoding="us-ascii" standalone="yes"?>
<!-- DFIN ActiveDisclosure(SM) XBRL Linkbase Document - http://www.dfinsolutions.com/ -->
<!-- Creation Date      : 2021-04-13T19:46:59.2642024+00:00 -->
<!-- Version            : 5.0.1.571 -->
<!-- Package ID         : fd2140f7c4d24d0a98d4068b640e3b36 -->
<!-- Copyright (c) 2021 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:roleRef roleURI="http://www.sutrobio.com/20210414/role/TemplateLink" xlink:href="stro-20210414.xsd#TemplateLink" xlink:type="simple" />
  <link:roleRef roleURI="http://www.sutrobio.com/20210414/taxonomy/role/DocumentDocumentAndEntityInformation" xlink:href="stro-20210414.xsd#Role_DocumentDocumentAndEntityInformation" xlink:type="simple" />
  <link:presentationLink xlink:type="extended" xlink:role="http://www.sutrobio.com/20210414/taxonomy/role/DocumentDocumentAndEntityInformation">
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_SecurityExchangeName" xlink:type="locator" xlink:label="dei_SecurityExchangeName" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_TradingSymbol" xlink:type="locator" xlink:label="dei_TradingSymbol" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_Security12bTitle" xlink:type="locator" xlink:label="dei_Security12bTitle" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_PreCommencementIssuerTenderOffer" xlink:type="locator" xlink:label="dei_PreCommencementIssuerTenderOffer" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_PreCommencementTenderOffer" xlink:type="locator" xlink:label="dei_PreCommencementTenderOffer" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_SolicitingMaterial" xlink:type="locator" xlink:label="dei_SolicitingMaterial" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_WrittenCommunications" xlink:type="locator" xlink:label="dei_WrittenCommunications" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LocalPhoneNumber" xlink:type="locator" xlink:label="dei_LocalPhoneNumber" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_CityAreaCode" xlink:type="locator" xlink:label="dei_CityAreaCode" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityAddressPostalZipCode" xlink:type="locator" xlink:label="dei_EntityAddressPostalZipCode" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityAddressStateOrProvince" xlink:type="locator" xlink:label="dei_EntityAddressStateOrProvince" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityAddressCityOrTown" xlink:type="locator" xlink:label="dei_EntityAddressCityOrTown" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityAddressAddressLine2" xlink:type="locator" xlink:label="dei_EntityAddressAddressLine2" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityAddressAddressLine1" xlink:type="locator" xlink:label="dei_EntityAddressAddressLine1" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityTaxIdentificationNumber" xlink:type="locator" xlink:label="dei_EntityTaxIdentificationNumber" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityIncorporationStateCountryCode" xlink:type="locator" xlink:label="dei_EntityIncorporationStateCountryCode" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityFileNumber" xlink:type="locator" xlink:label="dei_EntityFileNumber" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityExTransitionPeriod" xlink:type="locator" xlink:label="dei_EntityExTransitionPeriod" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityEmergingGrowthCompany" xlink:type="locator" xlink:label="dei_EntityEmergingGrowthCompany" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityCentralIndexKey" xlink:type="locator" xlink:label="dei_EntityCentralIndexKey" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityRegistrantName" xlink:type="locator" xlink:label="dei_EntityRegistrantName" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_DocumentPeriodEndDate" xlink:type="locator" xlink:label="dei_DocumentPeriodEndDate" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_AmendmentFlag" xlink:type="locator" xlink:label="dei_AmendmentFlag" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_DocumentType" xlink:type="locator" xlink:label="dei_DocumentType" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_CoverAbstract" xlink:type="locator" xlink:label="dei_CoverAbstract" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_DocumentType" order="10010.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_AmendmentFlag" order="10030.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_DocumentPeriodEndDate" order="10050.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_EntityRegistrantName" order="10070.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_EntityCentralIndexKey" order="10090.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_EntityEmergingGrowthCompany" order="10110.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_EntityExTransitionPeriod" order="10130.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_EntityFileNumber" order="10150.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_EntityIncorporationStateCountryCode" order="10170.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_EntityTaxIdentificationNumber" order="10190.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_EntityAddressAddressLine1" order="10210.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_EntityAddressAddressLine2" order="10230.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_EntityAddressCityOrTown" order="10250.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_EntityAddressStateOrProvince" order="10270.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_EntityAddressPostalZipCode" order="10290.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_CityAreaCode" order="10310.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_LocalPhoneNumber" order="10330.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_WrittenCommunications" order="10350.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_SolicitingMaterial" order="10370.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_PreCommencementTenderOffer" order="10390.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_PreCommencementIssuerTenderOffer" order="10410.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_Security12bTitle" order="10430.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_TradingSymbol" order="10450.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_SecurityExchangeName" order="10470.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
  </link:presentationLink>
</link:linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>5
<FILENAME>stro-8k_20210414_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/2020-01-31"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="stro-20210414.xsd" xlink:type="simple"/>
    <context id="C_0001382101_20210414_20210414">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001382101</identifier>
        </entity>
        <period>
            <startDate>2021-04-14</startDate>
            <endDate>2021-04-14</endDate>
        </period>
    </context>
    <dei:AmendmentFlag contextRef="C_0001382101_20210414_20210414" id="F_000001">false</dei:AmendmentFlag>
    <dei:EntityCentralIndexKey contextRef="C_0001382101_20210414_20210414" id="F_000004">0001382101</dei:EntityCentralIndexKey>
    <dei:DocumentType contextRef="C_0001382101_20210414_20210414" id="F_000000">8-K</dei:DocumentType>
    <dei:DocumentPeriodEndDate contextRef="C_0001382101_20210414_20210414" id="F_000002">2021-04-14</dei:DocumentPeriodEndDate>
    <dei:EntityRegistrantName contextRef="C_0001382101_20210414_20210414" id="F_000003">SUTRO BIOPHARMA, INC.</dei:EntityRegistrantName>
    <dei:EntityIncorporationStateCountryCode contextRef="C_0001382101_20210414_20210414" id="F_000008">DE</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber contextRef="C_0001382101_20210414_20210414" id="F_000007">001-38662</dei:EntityFileNumber>
    <dei:EntityTaxIdentificationNumber contextRef="C_0001382101_20210414_20210414" id="F_000009">47-0926186</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressAddressLine1 contextRef="C_0001382101_20210414_20210414" id="F_000010">310 Utah Avenue</dei:EntityAddressAddressLine1>
    <dei:EntityAddressAddressLine2 contextRef="C_0001382101_20210414_20210414" id="F_000011">Suite 150</dei:EntityAddressAddressLine2>
    <dei:EntityAddressCityOrTown contextRef="C_0001382101_20210414_20210414" id="F_000012">South San Francisco</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince contextRef="C_0001382101_20210414_20210414" id="F_000013">CA</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode contextRef="C_0001382101_20210414_20210414" id="F_000014">94080</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode contextRef="C_0001382101_20210414_20210414" id="F_000015">650</dei:CityAreaCode>
    <dei:LocalPhoneNumber contextRef="C_0001382101_20210414_20210414" id="F_000016">392-8412</dei:LocalPhoneNumber>
    <dei:WrittenCommunications contextRef="C_0001382101_20210414_20210414" id="F_000017">false</dei:WrittenCommunications>
    <dei:SolicitingMaterial contextRef="C_0001382101_20210414_20210414" id="F_000018">false</dei:SolicitingMaterial>
    <dei:PreCommencementTenderOffer contextRef="C_0001382101_20210414_20210414" id="F_000019">false</dei:PreCommencementTenderOffer>
    <dei:PreCommencementIssuerTenderOffer contextRef="C_0001382101_20210414_20210414" id="F_000020">false</dei:PreCommencementIssuerTenderOffer>
    <dei:Security12bTitle contextRef="C_0001382101_20210414_20210414" id="F_000021">Common Stock, $0.001 par value</dei:Security12bTitle>
    <dei:TradingSymbol contextRef="C_0001382101_20210414_20210414" id="F_000022">STRO</dei:TradingSymbol>
    <dei:SecurityExchangeName contextRef="C_0001382101_20210414_20210414" id="F_000023">NASDAQ</dei:SecurityExchangeName>
    <dei:EntityEmergingGrowthCompany contextRef="C_0001382101_20210414_20210414" id="F_000005">true</dei:EntityEmergingGrowthCompany>
    <dei:EntityExTransitionPeriod contextRef="C_0001382101_20210414_20210414" id="F_000006">false</dei:EntityExTransitionPeriod>
</xbrl>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>6
<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;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139933025123752">
<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>Apr. 14, 2021</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_DocumentType', window );">Document Type</a></td>
<td class="text">8-K<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_DocumentPeriodEndDate', window );">Document Period End Date</a></td>
<td class="text">Apr. 14,  2021<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_EntityRegistrantName', window );">Entity Registrant Name</a></td>
<td class="text">SUTRO BIOPHARMA, INC.<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">0001382101<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_EntityEmergingGrowthCompany', window );">Entity Emerging Growth Company</a></td>
<td class="text">true<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_EntityExTransitionPeriod', window );">Entity Ex Transition Period</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_EntityFileNumber', window );">Entity File Number</a></td>
<td class="text">001-38662<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_EntityIncorporationStateCountryCode', window );">Entity Incorporation, State or Country Code</a></td>
<td class="text">DE<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">47-0926186<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">310 Utah Avenue<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 150<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">South San Francisco<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">94080<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">650<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">392-8412<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_WrittenCommunications', window );">Written Communications</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_SolicitingMaterial', window );">Soliciting Material</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_PreCommencementTenderOffer', window );">Pre-commencement Tender Offer</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_PreCommencementIssuerTenderOffer', window );">Pre-commencement Issuer Tender Offer</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_Security12bTitle', window );">Title of 12(b) Security</a></td>
<td class="text">Common Stock, $0.001 par value<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">STRO<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>
</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 YYYY-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_EntityExTransitionPeriod">
<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 an emerging growth company has elected not to use the extended transition period for complying with any new or revised financial accounting standards.</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 7A<br> -Section B<br> -Subsection 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_EntityExTransitionPeriod</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>EXCEL
<SEQUENCE>7
<FILENAME>Financial_Report.xlsx
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
begin 644 Financial_Report.xlsx
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M=]W3CHG&K=!X#;[Q3X?#KHG&J]!TZVDF)_VN:Z3I%FA"1N/K>A(5M>5 TR
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M!Z.:60F]A%9JGZJ'-#ZH'C(*!?&Y'C[E>G@*-Y;&O%"N@GL!_]':-\*K^(+
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MU4#E/]O4#6CV#30<D05>,9FV-J/D3@H\W/[O#;#"Q([A[8N_ 5!+ P04
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M#RP/9'I;K?%NXQ/R^AQ@/7UM0K"=XI.([12O-2#QNH%'GL>[C>4!#ZP+V.Q
M_G@>F*FX3YI"5S%NV G&D3S'$)C%^(QF&5*=##[Q_F"G)$WS/(X %F>0IA@"
MIQ%', ;  4/2='@//GL?)=-[*CG_5U/\!%!+ P04    "  0.(]2EXJ[',
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MCU(<.&7J/P$  #P"   /    >&PO=V]R:V)O;VLN>&ULC5'+;L) #/R5U7Y
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M%0:P;W(@"2[)E1M27>EYIK=WDWM)J'7N0;#W\!J-'<V/'[?\ 5!+ P04
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MUDX:?^:+X3]>?P%02P$"% ,4    "  0.(]2!T%-8H$   "Q    $
M        @ $     9&]C4')O<',O87!P+GAM;%!+ 0(4 Q0    ( ! XCU*-
MREIW[P   "L"   1              "  :\   !D;V-0<F]P<R]C;W)E+GAM
M;%!+ 0(4 Q0    ( ! XCU*97)PC$ 8  )PG   3              "  <T!
M  !X;"]T:&5M92]T:&5M93$N>&UL4$L! A0#%     @ $#B/4A<GC#YQ!
M@!$  !@              ("!#@@  'AL+W=O<FMS:&5E=',O<VAE970Q+GAM
M;%!+ 0(4 Q0    ( ! XCU*?H!OPL0(  .(,   -              "  ;4,
M  !X;"]S='EL97,N>&UL4$L! A0#%     @ $#B/4I>*NQS     $P(   L
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64$L%!@     )  D /@(  !44      $!

end
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>8
<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>9
<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>XML
<SEQUENCE>10
<FILENAME>FilingSummary.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<XML>
<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.21.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>1</ContextCount>
  <ElementCount>96</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>0</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>0</UnitCount>
  <MyReports>
    <Report instance="stro-8k_20210414.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.sutrobio.com/20210414/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="stro-8k_20210414.htm">stro-8k_20210414.htm</File>
    <File>stro-20210414.xsd</File>
    <File>stro-20210414_lab.xml</File>
    <File>stro-20210414_pre.xml</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy>http://xbrl.sec.gov/dei/2020-01-31</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>false</HasCalculationLinkbase>
</FilingSummary>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>JSON
<SEQUENCE>12
<FILENAME>MetaLinks.json
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
{
 "instance": {
  "stro-8k_20210414.htm": {
   "axisCustom": 0,
   "axisStandard": 0,
   "contextCount": 1,
   "dts": {
    "definitionLink": {
     "remote": [
      "http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-eedm-def-2020-01-31.xml",
      "http://xbrl.fasb.org/srt/2020/elts/srt-eedm1-def-2020-01-31.xml"
     ]
    },
    "inline": {
     "local": [
      "stro-8k_20210414.htm"
     ]
    },
    "labelLink": {
     "local": [
      "stro-20210414_lab.xml"
     ],
     "remote": [
      "https://xbrl.sec.gov/dei/2020/dei-doc-2020-01-31.xml"
     ]
    },
    "presentationLink": {
     "local": [
      "stro-20210414_pre.xml"
     ]
    },
    "referenceLink": {
     "remote": [
      "https://xbrl.sec.gov/dei/2020/dei-ref-2020-01-31.xml"
     ]
    },
    "schema": {
     "local": [
      "stro-20210414.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",
      "http://www.xbrl.org/2005/xbrldt-2005.xsd",
      "https://xbrl.sec.gov/country/2020/country-2020-01-31.xsd",
      "http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd",
      "https://xbrl.sec.gov/currency/2020/currency-2020-01-31.xsd",
      "https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd",
      "http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd",
      "https://xbrl.sec.gov/exch/2020/exch-2020-01-31.xsd",
      "http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd",
      "http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd",
      "http://www.xbrl.org/lrr/role/net-2009-12-16.xsd",
      "https://xbrl.sec.gov/naics/2017/naics-2017-01-31.xsd",
      "https://xbrl.sec.gov/sic/2020/sic-2020-01-31.xsd",
      "http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd",
      "http://www.xbrl.org/2006/ref-2006-02-27.xsd",
      "http://xbrl.fasb.org/srt/2020/elts/srt-types-2020-01-31.xsd",
      "http://xbrl.fasb.org/srt/2020/elts/srt-roles-2020-01-31.xsd",
      "https://xbrl.sec.gov/stpr/2018/stpr-2018-01-31.xsd",
      "http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd",
      "http://xbrl.fasb.org/us-gaap/2020/elts/us-roles-2020-01-31.xsd",
      "http://xbrl.fasb.org/us-gaap/2020/elts/us-types-2020-01-31.xsd",
      "http://www.xbrl.org/lrr/role/deprecated-2009-12-16.xsd"
     ]
    }
   },
   "elementCount": 25,
   "entityCount": 1,
   "hidden": {
    "http://xbrl.sec.gov/dei/2020-01-31": 2,
    "total": 2
   },
   "keyCustom": 0,
   "keyStandard": 96,
   "memberCustom": 0,
   "memberStandard": 0,
   "nsprefix": "stro",
   "nsuri": "http://www.sutrobio.com/20210414",
   "report": {
    "R1": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "body",
       "html"
      ],
      "baseRef": "stro-8k_20210414.htm",
      "contextRef": "C_0001382101_20210414_20210414",
      "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.sutrobio.com/20210414/taxonomy/role/DocumentDocumentAndEntityInformation",
     "shortName": "Document and Entity Information",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "body",
       "html"
      ],
      "baseRef": "stro-8k_20210414.htm",
      "contextRef": "C_0001382101_20210414_20210414",
      "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/2020-01-31",
     "presentation": [
      "http://www.sutrobio.com/20210414/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/2020-01-31",
     "presentation": [
      "http://www.sutrobio.com/20210414/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_CoverAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Cover page.",
        "label": "Cover [Abstract]"
       }
      }
     },
     "localname": "CoverAbstract",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "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 YYYY-MM-DD.",
        "label": "Document Period End Date",
        "terseLabel": "Document Period End Date"
       }
      }
     },
     "localname": "DocumentPeriodEndDate",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.sutrobio.com/20210414/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/2020-01-31",
     "presentation": [
      "http://www.sutrobio.com/20210414/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 Line1",
        "terseLabel": "Entity Address, Address Line One"
       }
      }
     },
     "localname": "EntityAddressAddressLine1",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.sutrobio.com/20210414/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 Line2",
        "terseLabel": "Entity Address, Address Line Two"
       }
      }
     },
     "localname": "EntityAddressAddressLine2",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.sutrobio.com/20210414/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/2020-01-31",
     "presentation": [
      "http://www.sutrobio.com/20210414/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/2020-01-31",
     "presentation": [
      "http://www.sutrobio.com/20210414/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/2020-01-31",
     "presentation": [
      "http://www.sutrobio.com/20210414/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/2020-01-31",
     "presentation": [
      "http://www.sutrobio.com/20210414/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/2020-01-31",
     "presentation": [
      "http://www.sutrobio.com/20210414/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_EntityExTransitionPeriod": {
     "auth_ref": [
      "r7"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Indicate if an emerging growth company has elected not to use the extended transition period for complying with any new or revised financial accounting standards.",
        "label": "Entity Ex Transition Period",
        "terseLabel": "Entity Ex Transition Period"
       }
      }
     },
     "localname": "EntityExTransitionPeriod",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.sutrobio.com/20210414/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/2020-01-31",
     "presentation": [
      "http://www.sutrobio.com/20210414/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 or Country Code"
       }
      }
     },
     "localname": "EntityIncorporationStateCountryCode",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.sutrobio.com/20210414/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/2020-01-31",
     "presentation": [
      "http://www.sutrobio.com/20210414/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/2020-01-31",
     "presentation": [
      "http://www.sutrobio.com/20210414/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/2020-01-31",
     "presentation": [
      "http://www.sutrobio.com/20210414/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/2020-01-31",
     "presentation": [
      "http://www.sutrobio.com/20210414/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/2020-01-31",
     "presentation": [
      "http://www.sutrobio.com/20210414/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_Security12bTitle": {
     "auth_ref": [
      "r0"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Title of a 12(b) registered security.",
        "label": "Security12b Title",
        "terseLabel": "Title of 12(b) Security"
       }
      }
     },
     "localname": "Security12bTitle",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.sutrobio.com/20210414/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/2020-01-31",
     "presentation": [
      "http://www.sutrobio.com/20210414/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/2020-01-31",
     "presentation": [
      "http://www.sutrobio.com/20210414/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/2020-01-31",
     "presentation": [
      "http://www.sutrobio.com/20210414/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/2020-01-31",
     "presentation": [
      "http://www.sutrobio.com/20210414/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"
  },
  "r7": {
   "Name": "Securities Act",
   "Number": "7A",
   "Publisher": "SEC",
   "Section": "B",
   "Subsection": "2"
  }
 },
 "version": "2.1"
}
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>ZIP
<SEQUENCE>13
<FILENAME>0001564590-21-018899-xbrl.zip
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
begin 644 0001564590-21-018899-xbrl.zip
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M"@\$DGNOCT]NCJ\=WWY<APPMB514\);A6HZ!"/=%0/FT92R4B95/J8%4A'F
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M+%*8("V]Z&P<-LH#PTL&!7Z, C5! 3JMP+'(QD-& [//VWJ;L:90M,? /9;
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M@XET9U+#8SA#&G-'0AL+HMF@(S$4YW^.S?RB,3E ;#66<26N?VN>Y9T#\!E
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M3E:#^Z[ '4B?-D.]:')IJ-&BT/2Y5$$IV\38I-AT8%.72T"/_3<,F"GF*R9
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MW8$>^O#C/U!+ 0(4 Q0    ( ! XCU)>G![?K@0  +T6   1
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64$L%!@     $  0 !P$  !XE      $!

end
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
