<SEC-DOCUMENT>0001193125-21-184284.txt : 20210607
<SEC-HEADER>0001193125-21-184284.hdr.sgml : 20210607
<ACCEPTANCE-DATETIME>20210607160538
ACCESSION NUMBER:		0001193125-21-184284
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		15
CONFORMED PERIOD OF REPORT:	20210604
ITEM INFORMATION:		Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20210607
DATE AS OF CHANGE:		20210607

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GLADSTONE COMMERCIAL CORP
		CENTRAL INDEX KEY:			0001234006
		STANDARD INDUSTRIAL CLASSIFICATION:	LESSORS OF REAL PROPERTY, NEC [6519]
		IRS NUMBER:				020681276
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33097
		FILM NUMBER:		21999562

	BUSINESS ADDRESS:	
		STREET 1:		1521 WESTBRANCH DRIVE
		STREET 2:		SUITE 100
		CITY:			MCLEAN
		STATE:			VA
		ZIP:			22102
		BUSINESS PHONE:		703-287-5853

	MAIL ADDRESS:	
		STREET 1:		1521 WESTBRANCH DRIVE
		STREET 2:		SUITE 100
		CITY:			MCLEAN
		STATE:			VA
		ZIP:			22102
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>d177953d8k.htm
<DESCRIPTION>8-K
<TEXT>
<XBRL>
<?xml version="1.0" encoding="utf-8" ?>
<html xmlns:dei="http://xbrl.sec.gov/dei/2020-01-31" xmlns:us-types="http://fasb.org/us-types/2020-01-31" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:good="http://ir.gladstonecommercial.com/20210604" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:utr="http://www.xbrl.org/2009/utr" xmlns:iso4217="http://www.xbrl.org/2003/iso4217" xmlns:ix="http://www.xbrl.org/2013/inlineXBRL" xmlns:ixt="http://www.xbrl.org/inlineXBRL/transformation/2015-02-26" xmlns:ixt-sec="http://www.sec.gov/inlineXBRL/transformation/2015-08-31" xmlns:sic="http://xbrl.sec.gov/sic/2011-01-31" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xbrldi="http://xbrl.org/2006/xbrldi" xmlns:us-gaap="http://fasb.org/us-gaap/2020-01-31" xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>8-K</title>
<meta http-equiv="Content-Type" content="text/html" />
</head>
   <body>
 <div style="display:none"> <ix:header> <ix:hidden> <ix:nonNumeric id="Hidden_dei_EntityRegistrantName" name="dei:EntityRegistrantName" contextRef="duration_2021-06-04_to_2021-06-04">GLADSTONE COMMERCIAL CORP</ix:nonNumeric> <ix:nonNumeric name="dei:AmendmentFlag" contextRef="duration_2021-06-04_to_2021-06-04">false</ix:nonNumeric> <ix:nonNumeric id="Hidden_dei_EntityCentralIndexKey" name="dei:EntityCentralIndexKey" contextRef="duration_2021-06-04_to_2021-06-04">0001234006</ix:nonNumeric> </ix:hidden> <ix:references> <link:schemaRef xlink:type="simple" xlink:href="good-20210604.xsd" xlink:arcrole="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:link="http://www.xbrl.org/2003/linkbase"></link:schemaRef> </ix:references> <ix:resources> <xbrli:context id="duration_2021-06-04_to_2021-06-04"> <xbrli:entity> <xbrli:identifier scheme="http://www.sec.gov/CIK">0001234006</xbrli:identifier> </xbrli:entity> <xbrli:period> <xbrli:startDate>2021-06-04</xbrli:startDate> <xbrli:endDate>2021-06-04</xbrli:endDate> </xbrli:period> </xbrli:context> <xbrli:context id="duration_2021-06-04_to_2021-06-04_us-gaap-StatementClassOfStockAxis_us-gaap-CommonStockMember"> <xbrli:entity> <xbrli:identifier scheme="http://www.sec.gov/CIK">0001234006</xbrli:identifier> <xbrli:segment> <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">us-gaap:CommonStockMember</xbrldi:explicitMember> </xbrli:segment> </xbrli:entity> <xbrli:period> <xbrli:startDate>2021-06-04</xbrli:startDate> <xbrli:endDate>2021-06-04</xbrli:endDate> </xbrli:period> </xbrli:context> <xbrli:context id="duration_2021-06-04_to_2021-06-04_us-gaap-StatementClassOfStockAxis_good-A7.00SeriesDCumulativeRedeemablePreferredStockMember"> <xbrli:entity> <xbrli:identifier scheme="http://www.sec.gov/CIK">0001234006</xbrli:identifier> <xbrli:segment> <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">good:A7.00SeriesDCumulativeRedeemablePreferredStockMember</xbrldi:explicitMember> </xbrli:segment> </xbrli:entity> <xbrli:period> <xbrli:startDate>2021-06-04</xbrli:startDate> <xbrli:endDate>2021-06-04</xbrli:endDate> </xbrli:period> </xbrli:context> <xbrli:context id="duration_2021-06-04_to_2021-06-04_us-gaap-StatementClassOfStockAxis_good-A6.625SeriesECumulativeRedeemablePreferredStockMember"> <xbrli:entity> <xbrli:identifier scheme="http://www.sec.gov/CIK">0001234006</xbrli:identifier> <xbrli:segment> <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">good:A6.625SeriesECumulativeRedeemablePreferredStockMember</xbrldi:explicitMember> </xbrli:segment> </xbrli:entity> <xbrli:period> <xbrli:startDate>2021-06-04</xbrli:startDate> <xbrli:endDate>2021-06-04</xbrli:endDate> </xbrli:period> </xbrli:context> </ix:resources> </ix:header> </div> <div style="text-align:center"> <div style="width:8.5in;text-align:left;margin-left: auto;margin-right: auto"> <p style="line-height:1.0pt;margin-top:0pt;margin-bottom:0pt;border-bottom:1px solid #000000">&#160;</p> <p style="line-height:3.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&#160;</p> <p style="margin-top:4pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman;font-weight:bold;text-align:center">UNITED STATES</p> <p style="margin-top:0pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman;font-weight:bold;text-align:center">SECURITIES AND EXCHANGE COMMISSION</p> <p style="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman;font-weight:bold;text-align:center">Washington, D.C. 20549</p> <p style="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&#160;</p> <div style="text-align:center"> <p style="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%;text-align:center;margin-left: auto;margin-right: auto">&#160;</p></div> <p style="margin-top:12pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman;font-weight:bold;text-align:center">Form <span style="white-space:nowrap"><ix:nonNumeric name="dei:DocumentType" contextRef="duration_2021-06-04_to_2021-06-04">8-K</ix:nonNumeric></span></p> <p style="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&#160;</p> <div style="text-align:center"> <p style="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%;text-align:center;margin-left: auto;margin-right: auto">&#160;</p></div> <p style="margin-top:12pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman;font-weight:bold;text-align:center">CURRENT REPORT</p> <p style="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman;font-weight:bold;text-align:center">Pursuant to Section 13 or 15(d)</p> <p style="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman;font-weight:bold;text-align:center">of the Securities Exchange Act of 1934</p> <p style="margin-top:12pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman;font-weight:bold;text-align:center">Date of Report (Date of earliest event Reported): June 7, 2021 (<ix:nonNumeric name="dei:DocumentPeriodEndDate" contextRef="duration_2021-06-04_to_2021-06-04" format="ixt:datemonthdayyearen">June 4, 2021</ix:nonNumeric>)</p> <p style="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&#160;</p> <div style="text-align:center"> <p style="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%;text-align:center;margin-left: auto;margin-right: auto">&#160;</p></div> <p style="margin-top:12pt; margin-bottom:0pt; font-size:24pt; font-family:Times New Roman;font-weight:bold;text-align:center"> <span style=" -sec-ix-hidden:Hidden_dei_EntityRegistrantName">Gladstone Commercial Corporation</span> </p> <p style="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;font-weight:bold;text-align:center">(Exact Name of Registrant as Specified in Charter)</p> <p style="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&#160;</p> <div style="text-align:center"> <p style="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%;text-align:center;margin-left: auto;margin-right: auto">&#160;</p></div> <p style="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
<table cellspacing="0" cellpadding="0" style="border-collapse:collapse; font-family:Times New Roman; font-size:8pt;width:100%;border:0;margin:0 auto">
<tr>
<td style="width:34%"></td>
<td style="vertical-align:bottom"></td>
<td style="width:32%"></td>
<td style="vertical-align:bottom;width:1%"></td>
<td style="width:32%"></td></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style=" text-align: center;margin:auto; vertical-align:top"><span style="font-weight:bold"><ix:nonNumeric name="dei:EntityIncorporationStateCountryCode" contextRef="duration_2021-06-04_to_2021-06-04" format="ixt-sec:stateprovnameen">Maryland</ix:nonNumeric></span></td>
<td style="vertical-align:bottom">&#160;</td>
<td style=" text-align: center;margin:auto; vertical-align:top"><span style="font-weight:bold"><span style="white-space:nowrap"><ix:nonNumeric name="dei:EntityFileNumber" contextRef="duration_2021-06-04_to_2021-06-04">001-33097</ix:nonNumeric></span></span></td>
<td style="vertical-align:bottom">&#160;</td>
<td style=" text-align: center;margin:auto; vertical-align:top"><span style="font-weight:bold"><span style="white-space:nowrap"><ix:nonNumeric name="dei:EntityTaxIdentificationNumber" contextRef="duration_2021-06-04_to_2021-06-04">02-0681276</ix:nonNumeric></span></span></td></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
<td style=" text-align: center;margin:auto; vertical-align:top"> <p style="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman;font-weight:bold;text-align:center">(State or Other Jurisdiction</p> <p style="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman;font-weight:bold;text-align:center">of Incorporation)</p></td>
<td style="vertical-align:bottom">&#160;</td>
<td style=" text-align: center;margin:auto; vertical-align:top"> <p style="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman;font-weight:bold;text-align:center">(Commission</p> <p style="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman;font-weight:bold;text-align:center">File Number)</p></td>
<td style="vertical-align:bottom">&#160;</td>
<td style=" text-align: center;margin:auto; vertical-align:top"> <p style="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman;font-weight:bold;text-align:center">(I.R.S. Employer</p> <p style="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman;font-weight:bold;text-align:center">Identification Number)</p></td></tr></table> <p style="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;font-weight:bold;text-align:center"><ix:nonNumeric name="dei:EntityAddressAddressLine1" contextRef="duration_2021-06-04_to_2021-06-04">1521 Westbranch Drive</ix:nonNumeric>, <ix:nonNumeric name="dei:EntityAddressAddressLine2" contextRef="duration_2021-06-04_to_2021-06-04">Suite 100</ix:nonNumeric>, <ix:nonNumeric name="dei:EntityAddressCityOrTown" contextRef="duration_2021-06-04_to_2021-06-04">McLean</ix:nonNumeric>, <ix:nonNumeric name="dei:EntityAddressStateOrProvince" contextRef="duration_2021-06-04_to_2021-06-04" format="ixt-sec:stateprovnameen">Virginia</ix:nonNumeric> <ix:nonNumeric name="dei:EntityAddressPostalZipCode" contextRef="duration_2021-06-04_to_2021-06-04">22102</ix:nonNumeric></p> <p style="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman;font-weight:bold;text-align:center">(Address of Principal Executive Offices) (Zip Code)</p> <p style="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;font-weight:bold;text-align:center"><ix:nonNumeric name="dei:CityAreaCode" contextRef="duration_2021-06-04_to_2021-06-04">(703)</ix:nonNumeric> <span style="white-space:nowrap"><ix:nonNumeric name="dei:LocalPhoneNumber" contextRef="duration_2021-06-04_to_2021-06-04">287-5800</ix:nonNumeric></span></p> <p style="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman;font-weight:bold;text-align:center">(Registrant&#8217;s telephone number, including area code)</p> <p style="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;font-weight:bold;text-align:center">Not Applicable</p> <p style="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman;font-weight:bold;text-align:center">(Former name or former address, if changed since last report)</p> <p style="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&#160;</p> <div style="text-align:center"> <p style="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%;text-align:center;margin-left: auto;margin-right: auto">&#160;</p></div> <p style="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Check the appropriate box below if the Form <span style="white-space:nowrap">8-K</span> filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:</p> <p style="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
<table style="border-collapse:collapse; font-family:Times New Roman; font-size:10pt;border:0;width:100%" cellpadding="0" cellspacing="0">
<tr style="page-break-inside:avoid">
<td style="width:4%">&#160;</td>
<td style="width:5%;vertical-align:top"><ix:nonNumeric name="dei:WrittenCommunications" contextRef="duration_2021-06-04_to_2021-06-04" format="ixt-sec:boolballotbox">&#9744;</ix:nonNumeric></td>
<td style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;text-align:left">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</p></td></tr></table> <p style="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
<table style="border-collapse:collapse; font-family:Times New Roman; font-size:10pt;border:0;width:100%" cellpadding="0" cellspacing="0">
<tr style="page-break-inside:avoid">
<td style="width:4%">&#160;</td>
<td style="width:5%;vertical-align:top"><ix:nonNumeric name="dei:SolicitingMaterial" contextRef="duration_2021-06-04_to_2021-06-04" format="ixt-sec:boolballotbox">&#9744;</ix:nonNumeric></td>
<td style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;text-align:left">Soliciting material pursuant to Rule <span style="white-space:nowrap">14a-12</span> under the Exchange Act (17 CFR <span style="white-space:nowrap">240.14a-12)</span></p></td></tr></table> <p style="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
<table style="border-collapse:collapse; font-family:Times New Roman; font-size:10pt;border:0;width:100%" cellpadding="0" cellspacing="0">
<tr style="page-break-inside:avoid">
<td style="width:4%">&#160;</td>
<td style="width:5%;vertical-align:top"><ix:nonNumeric name="dei:PreCommencementTenderOffer" contextRef="duration_2021-06-04_to_2021-06-04" format="ixt-sec:boolballotbox">&#9744;</ix:nonNumeric></td>
<td style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;text-align:left"><span style="white-space:nowrap">Pre-commencement</span> communications pursuant to Rule <span style="white-space:nowrap">14d-2(b)</span> under the Exchange Act (17 CFR <span style="white-space:nowrap">240.14d-2(b))</span></p></td></tr></table> <p style="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
<table style="border-collapse:collapse; font-family:Times New Roman; font-size:10pt;border:0;width:100%" cellpadding="0" cellspacing="0">
<tr style="page-break-inside:avoid">
<td style="width:4%">&#160;</td>
<td style="width:5%;vertical-align:top"><ix:nonNumeric name="dei:PreCommencementIssuerTenderOffer" contextRef="duration_2021-06-04_to_2021-06-04" format="ixt-sec:boolballotbox">&#9744;</ix:nonNumeric></td>
<td style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;text-align:left"><span style="white-space:nowrap">Pre-commencement</span> communications pursuant to Rule <span style="white-space:nowrap">13e-4(c)</span> under the Exchange Act (17 CFR <span style="white-space:nowrap">240.13e-4(c))</span></p></td></tr></table> <p style="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Securities registered pursuant to Section 12(b) of the Act:</p> <p style="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
<table cellspacing="0" cellpadding="0" style="border-collapse:collapse; font-family:Times New Roman; font-size:10pt;width:100%;border:0;margin:0 auto">
<tr>
<td style="width:34%"></td>
<td style="vertical-align:bottom"></td>
<td style="width:32%"></td>
<td style="vertical-align:bottom;width:1%"></td>
<td style="width:32%"></td></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
<td style=" text-align: center;margin:auto; border-bottom:1.00pt solid #000000;vertical-align:bottom;white-space:nowrap"> <p style="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman;font-weight:bold;text-align:center">Title of each class</p></td>
<td style="vertical-align:bottom">&#160;</td>
<td style=" text-align: center;margin:auto; border-bottom:1.00pt solid #000000;vertical-align:bottom"> <p style="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman;font-weight:bold;text-align:center">Trading</p> <p style="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman;font-weight:bold;text-align:center">Symbol(s)</p></td>
<td style="vertical-align:bottom">&#160;</td>
<td style=" text-align: center;margin:auto; border-bottom:1.00pt solid #000000;vertical-align:bottom"> <p style="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman;font-weight:bold;text-align:center">Name of each exchange</p> <p style="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman;font-weight:bold;text-align:center">on which registered</p></td></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style=" text-align: center;margin:auto; vertical-align:top"><span style="font-weight:bold"><ix:nonNumeric name="dei:Security12bTitle" contextRef="duration_2021-06-04_to_2021-06-04_us-gaap-StatementClassOfStockAxis_us-gaap-CommonStockMember">Common Stock, $0.001 par value per share</ix:nonNumeric></span></td>
<td style="vertical-align:bottom">&#160;</td>
<td style=" text-align: center;margin:auto; vertical-align:top"><span style="font-weight:bold"><ix:nonNumeric name="dei:TradingSymbol" contextRef="duration_2021-06-04_to_2021-06-04_us-gaap-StatementClassOfStockAxis_us-gaap-CommonStockMember">GOOD</ix:nonNumeric></span></td>
<td style="vertical-align:bottom">&#160;</td>
<td style=" text-align: center;margin:auto; vertical-align:top"><span style="font-weight:bold"><ix:nonNumeric name="dei:SecurityExchangeName" contextRef="duration_2021-06-04_to_2021-06-04_us-gaap-StatementClassOfStockAxis_us-gaap-CommonStockMember" format="ixt-sec:exchnameen">Nasdaq Global Select Market</ix:nonNumeric></span></td></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style=" text-align: center;margin:auto; vertical-align:top"><span style="font-weight:bold"><ix:nonNumeric name="dei:Security12bTitle" contextRef="duration_2021-06-04_to_2021-06-04_us-gaap-StatementClassOfStockAxis_good-A7.00SeriesDCumulativeRedeemablePreferredStockMember">7.00% Series D Cumulative Redeemable Preferred Stock, par value $0.001 per share</ix:nonNumeric></span></td>
<td style="vertical-align:bottom">&#160;</td>
<td style=" text-align: center;margin:auto; vertical-align:middle"><span style="font-weight:bold"><ix:nonNumeric name="dei:TradingSymbol" contextRef="duration_2021-06-04_to_2021-06-04_us-gaap-StatementClassOfStockAxis_good-A7.00SeriesDCumulativeRedeemablePreferredStockMember">GOODM</ix:nonNumeric></span></td>
<td style="vertical-align:bottom">&#160;</td>
<td style=" text-align: center;margin:auto; vertical-align:middle"><span style="font-weight:bold"><ix:nonNumeric name="dei:SecurityExchangeName" contextRef="duration_2021-06-04_to_2021-06-04_us-gaap-StatementClassOfStockAxis_good-A7.00SeriesDCumulativeRedeemablePreferredStockMember" format="ixt-sec:exchnameen">Nasdaq Global Select Market</ix:nonNumeric></span></td></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style=" text-align: center;margin:auto; vertical-align:top"><span style="font-weight:bold"><ix:nonNumeric name="dei:Security12bTitle" contextRef="duration_2021-06-04_to_2021-06-04_us-gaap-StatementClassOfStockAxis_good-A6.625SeriesECumulativeRedeemablePreferredStockMember">6.625% Series E Cumulative Redeemable Preferred Stock, par value $0.001 per share</ix:nonNumeric></span></td>
<td style="vertical-align:bottom">&#160;</td>
<td style=" text-align: center;margin:auto; vertical-align:middle"><span style="font-weight:bold"><ix:nonNumeric name="dei:TradingSymbol" contextRef="duration_2021-06-04_to_2021-06-04_us-gaap-StatementClassOfStockAxis_good-A6.625SeriesECumulativeRedeemablePreferredStockMember">GOODN</ix:nonNumeric></span></td>
<td style="vertical-align:bottom">&#160;</td>
<td style=" text-align: center;margin:auto; vertical-align:middle"><span style="font-weight:bold"><ix:nonNumeric name="dei:SecurityExchangeName" contextRef="duration_2021-06-04_to_2021-06-04_us-gaap-StatementClassOfStockAxis_good-A6.625SeriesECumulativeRedeemablePreferredStockMember" format="ixt-sec:exchnameen">Nasdaq Global Select Market</ix:nonNumeric></span></td></tr></table> <p style="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (&#167;230.405 of this chapter) or Rule <span style="white-space:nowrap">12b-2</span> of the Securities Exchange Act of 1934 <span style="white-space:nowrap">(&#167;240.12b-2</span> of this chapter).</p> <p style="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Emerging growth company <ix:nonNumeric name="dei:EntityEmergingGrowthCompany" contextRef="duration_2021-06-04_to_2021-06-04" format="ixt-sec:boolballotbox">&#9744;</ix:nonNumeric></p> <p style="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">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. &#9744;</p> <p style="font-size:10pt;margin-top:0pt;margin-bottom:0pt">&#160;</p> <p style="line-height:1.0pt;margin-top:0pt;margin-bottom:0pt;border-bottom:1px solid #000000">&#160;</p> <p style="line-height:3.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&#160;</p></div></div>

<p style="margin-top:1em; margin-bottom:0em; page-break-before:always"> </p>
<hr style="color:#999999;height:3px;width:100%" />


<div style="text-align:center"><div style="width:8.5in;text-align:left;margin-left: auto;margin-right: auto">
 <p style="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;font-weight:bold">Item 5.02&#160;Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers. </p> <p style="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">On June&#160;4, 2021, Gladstone Commercial Corporation (the &#8220;Company&#8221;), appointed Gary Gerson, age 56, as Chief Financial Officer, effective immediately. Mr.&#160;Gerson has served as the Company&#8217;s Interim Chief Financial Officer since March&#160;26, 2021. Prior to joining the Company, from 2013 to 2020, Mr.&#160;Gerson served as Chief Financial Officer of Spotted Hawk Development Company, LLC, an Apollo Investment Corporation (Nasdaq: AINV) portfolio company. In addition, Mr.&#160;Gerson previously served as Treasurer and Managing Principal of the Company and the affiliated Gladstone family of companies from 2006 to 2012, providing valuable finance and treasury functions. Mr.&#160;Gerson is a CFA Charterholder and a Certified Public Accountant in the Commonwealth of Virginia. He earned his Bachelor of Science from the United States Naval Academy and his Master of Business Administration from Yale University. </p> <p style="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;font-weight:bold">Item&#160;9.01. Financial Statements and Exhibits. </p> <p style="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">(a) Not applicable. </p> <p style="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">(b) Not applicable. </p> <p style="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">(c) Not applicable. </p> <p style="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">(d) Exhibits. </p> <p style="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
<table cellspacing="0" cellpadding="0" style="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt;width:100%;border:0;margin:0 auto">


<tr>

<td></td>

<td style="vertical-align:bottom;width:7%"></td>
<td style="width:90%"></td></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
<td style="vertical-align:bottom;white-space:nowrap" align="center"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-bottom:1.00pt solid #000000; display:inline-block; font-size:8pt; font-family:Times New Roman;font-weight:bold;text-align:center">Exhibit&#160;No.</p></td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom;white-space:nowrap"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-bottom:1.00pt solid #000000; display:table-cell; font-size:8pt; font-family:Times New Roman;font-weight:bold">Description</p></td></tr>


<tr style="font-size:1pt">
<td style="height:6pt"></td>
<td style="height:6pt" colspan="2"></td></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">99.1</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top"><a href="d177953dex991.htm">Press Release dated June&#160;7, 2021 </a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"></td>
<td style="height:6pt" colspan="2"></td></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">104</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">Cover Page Interactive Data File (embedded within the Inline XBRL document)</td></tr>
</table>
</div></div>



<p style="margin-top:1em; margin-bottom:0em; page-break-before:always"> </p>
<hr style="color:#999999;height:3px;width:100%" />


<div style="text-align:center"><div style="width:8.5in;text-align:left;margin-left: auto;margin-right: auto">
 <p style="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;font-weight:bold;text-align:center">SIGNATURES </p> <p style="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">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="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
<table cellspacing="0" cellpadding="0" style="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt;width:100%;border:0">


<tr>

<td style="width:45%"></td>

<td style="vertical-align:bottom;width:1%"></td>
<td style="width:4%"></td>

<td style="vertical-align:bottom"></td>
<td style="width:3%"></td>

<td style="vertical-align:bottom;width:1%"></td>
<td style="width:45%"></td></tr>


<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top"></td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom"></td>
<td style="vertical-align:bottom">&#160;</td>
<td colspan="3" style="vertical-align:bottom;white-space:nowrap"><span style="font-weight:bold">Gladstone Commercial Corporation</span></td></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top"></td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom"></td>
<td style="vertical-align:bottom">&#160;</td>
<td colspan="3" style="vertical-align:bottom;white-space:nowrap">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;(Registrant)</td></tr>
<tr style="font-size:1pt">
<td style="height:12pt"></td>
<td style="height:12pt" colspan="2"></td>
<td style="height:12pt" colspan="2"></td>
<td style="height:12pt" colspan="2"></td></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top">June&#160;7, 2021</td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom"></td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:top;white-space:nowrap">By:</td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom;white-space:nowrap"> <p style="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Gary Gerson</p></td></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top"></td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom"></td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom"></td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom;white-space:nowrap"> <p style="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Gary Gerson</p> <p style="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman">Chief Financial Officer</p></td></tr>
</table>
</div></div>

</body></html>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>d177953dex991.htm
<DESCRIPTION>EX-99.1
<TEXT>
<HTML><HEAD>
<TITLE>EX-99.1</TITLE>
</HEAD>
 <BODY BGCOLOR="WHITE">


<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B>Exhibit 99.1 </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<P STYLE="margin-top:0pt;margin-bottom:0pt" ALIGN="center">


<IMG SRC="g177953g57g09.jpg" ALT="LOGO">
 </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Gladstone Commercial Appoints Chief Financial Officer </B></P>
<P STYLE="line-height:2.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:2.00pt solid #000000">&nbsp;</P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">MCLEAN, Va., June&nbsp;7, 2021 &#151; Gladstone
Commercial Corporation (Nasdaq: GOOD) (&#147;Gladstone Commercial&#148;) announced today that Gary Gerson has been appointed Chief Financial Officer, effective June&nbsp;4, 2021. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Mr.&nbsp;Gerson has served as Gladstone Commercial&#146;s Interim Chief Financial Officer since March&nbsp;26, 2021. Prior to joining the company, from 2013
to 2020, Mr.&nbsp;Gerson served as Chief Financial Officer of Spotted Hawk Development Company, LLC, an Apollo Investment Corporation (Nasdaq: AINV) portfolio company. In addition, Mr.&nbsp;Gerson previously served as Treasurer and Managing
Principal of Gladstone Commercial, as well as the affiliated Gladstone family of companies, from 2006 to 2012, providing valuable finance and treasury functions. Mr.&nbsp;Gerson is a CFA Charterholder and a Certified Public Accountant in the
Commonwealth of Virginia. He earned his Bachelor of Science from the United States Naval Academy and his Master of Business Administration from Yale University. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Bob Cutlip, President of Gladstone Commercial, remarked, &#147;We are excited that Gary has rejoined the Gladstone Commercial team.&nbsp;We believe his broad
range of experience in real estate and all facets of financial management, along with his thorough understanding and familiarity of our company enable him to deliver valuable contributions both today and as we continue to grow into the
future.&#148;</P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><U>Gladstone Commercial Corporation</U> is a real estate investment trust (&#147;REIT&#148;) focused on acquiring, owning and operating net
leased industrial and office properties across the United States. As of March&nbsp;31, 2021, Gladstone Commercial&#146;s real estate portfolio consisted of 120 properties located in 27 states, totaling approximately 15.5&nbsp;million square feet.
For additional information please visit <U>www.gladstonecommercial.com</U>. </P>
</DIV></Center>

</BODY></HTML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.SCH
<SEQUENCE>3
<FILENAME>good-20210604.xsd
<DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA
<TEXT>
<XBRL>
<?xml version="1.0" encoding="us-ascii"?>
<!-- DFIN - https://www.dfinsolutions.com/ -->
<!-- CTU Version: Release 2020-8 Build:20210114.4 -->
<!-- Creation date: 6/7/2021 11:56:46 PM Eastern Time -->
<!-- Copyright (c) 2021 Donnelley Financial Solutions, Inc. All Rights Reserved. -->
<xsd:schema
  xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric"
  xmlns:num="http://www.xbrl.org/dtr/type/numeric"
  xmlns:us-types="http://fasb.org/us-types/2020-01-31"
  xmlns:good="http://ir.gladstonecommercial.com/20210604"
  xmlns:dei="http://xbrl.sec.gov/dei/2020-01-31"
  xmlns:xbrli="http://www.xbrl.org/2003/instance"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:xlink="http://www.w3.org/1999/xlink"
  xmlns:xbrldt="http://xbrl.org/2005/xbrldt"
  xmlns:sic="http://xbrl.sec.gov/sic/2011-01-31"
  xmlns:us-gaap="http://fasb.org/us-gaap/2020-01-31"
  attributeFormDefault="unqualified"
  elementFormDefault="qualified"
  targetNamespace="http://ir.gladstonecommercial.com/20210604"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema">
    <xsd:import schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" namespace="http://www.xbrl.org/2003/instance" />
    <xsd:import schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" namespace="http://www.xbrl.org/2003/linkbase" />
    <xsd:import schemaLocation="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd" namespace="http://xbrl.sec.gov/dei/2020-01-31" />
    <xsd:import schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd" namespace="http://www.xbrl.org/dtr/type/numeric" />
    <xsd:import schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd" namespace="http://www.xbrl.org/dtr/type/non-numeric" />
    <xsd:import schemaLocation="http://xbrl.sec.gov/sic/2011/sic-2011-01-31.xsd" namespace="http://xbrl.sec.gov/sic/2011-01-31" />
    <xsd:import schemaLocation="https://xbrl.sec.gov/naics/2017/naics-2017-01-31.xsd" namespace="http://xbrl.sec.gov/naics/2017-01-31" />
    <xsd:import schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" namespace="http://xbrl.org/2005/xbrldt" />
    <xsd: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-types-2020-01-31.xsd" namespace="http://fasb.org/us-types/2020-01-31" />
  <xsd:annotation>
    <xsd:appinfo>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="good-20210604_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="good-20210604_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:title="Presentation Links, all" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="good-20210604_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:title="Definition Links, all" xlink:type="simple" />
      <link:roleType roleURI="http://ir.gladstonecommercial.com//20210604/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:element id="good_DocumentAndEntityInformationTable" name="DocumentAndEntityInformationTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="good_DocumentAndEntityInformationLineItems" name="DocumentAndEntityInformationLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="good_A7.00SeriesDCumulativeRedeemablePreferredStockMember" name="A7.00SeriesDCumulativeRedeemablePreferredStockMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="good_A6.625SeriesECumulativeRedeemablePreferredStockMember" name="A6.625SeriesECumulativeRedeemablePreferredStockMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
</xsd:schema>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.DEF
<SEQUENCE>4
<FILENAME>good-20210604_def.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION DEFINITION LINKBASE
<TEXT>
<XBRL>
<?xml version="1.0" encoding="us-ascii"?>
<!-- DFIN - https://www.dfinsolutions.com/ -->
<!-- CTU Version: Release 2020-8 Build:20210114.4 -->
<!-- Creation date: 6/7/2021 11:56:48 PM Eastern Time -->
<!-- Copyright (c) 2021 Donnelley Financial Solutions, Inc. All Rights Reserved. -->
<linkbase xmlns="http://www.xbrl.org/2003/linkbase" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all" arcroleURI="http://xbrl.org/int/dim/arcrole/all" />
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default" arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" />
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain" arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" />
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member" arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" />
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension" arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" />
  <link:roleRef roleURI="http://ir.gladstonecommercial.com//20210604/taxonomy/role/DocumentDocumentAndEntityInformation" xlink:href="good-20210604.xsd#Role_DocumentDocumentAndEntityInformation" xlink:type="simple" />
  <link:definitionLink xlink:type="extended" xlink:role="http://ir.gladstonecommercial.com//20210604/taxonomy/role/DocumentDocumentAndEntityInformation">
    <link:loc xlink:href="good-20210604.xsd#good_DocumentAndEntityInformationTable" xlink:type="locator" xlink:label="good_DocumentAndEntityInformationTable" />
    <link:loc xlink:href="good-20210604.xsd#good_DocumentAndEntityInformationLineItems" xlink:type="locator" xlink:label="good_DocumentAndEntityInformationLineItems" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:type="locator" xlink:label="us-gaap_StatementClassOfStockAxis" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:type="locator" xlink:label="us-gaap_ClassOfStockDomain" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:type="locator" xlink:label="us-gaap_ClassOfStockDomain_2" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockMember" xlink:type="locator" xlink:label="us-gaap_CommonStockMember" />
    <link:loc xlink:href="good-20210604.xsd#good_A7.00SeriesDCumulativeRedeemablePreferredStockMember" xlink:type="locator" xlink:label="good_A7.00SeriesDCumulativeRedeemablePreferredStockMember" />
    <link:loc xlink:href="good-20210604.xsd#good_A6.625SeriesECumulativeRedeemablePreferredStockMember" xlink:type="locator" xlink:label="good_A6.625SeriesECumulativeRedeemablePreferredStockMember" />
    <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_AmendmentFlag" xlink:type="locator" xlink:label="dei_AmendmentFlag" />
    <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_DocumentType" xlink:type="locator" xlink:label="dei_DocumentType" />
    <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_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_EntityTaxIdentificationNumber" xlink:type="locator" xlink:label="dei_EntityTaxIdentificationNumber" />
    <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_EntityAddressAddressLine2" xlink:type="locator" xlink:label="dei_EntityAddressAddressLine2" />
    <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_EntityAddressStateOrProvince" xlink:type="locator" xlink:label="dei_EntityAddressStateOrProvince" />
    <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_CityAreaCode" xlink:type="locator" xlink:label="dei_CityAreaCode" />
    <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_WrittenCommunications" xlink:type="locator" xlink:label="dei_WrittenCommunications" />
    <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_PreCommencementTenderOffer" xlink:type="locator" xlink:label="dei_PreCommencementTenderOffer" />
    <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_Security12bTitle" xlink:type="locator" xlink:label="dei_Security12bTitle" />
    <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_SecurityExchangeName" xlink:type="locator" xlink:label="dei_SecurityExchangeName" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityEmergingGrowthCompany" xlink:type="locator" xlink:label="dei_EntityEmergingGrowthCompany" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="good_DocumentAndEntityInformationTable" order="1" priority="2" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="good_DocumentAndEntityInformationTable" xlink:to="us-gaap_StatementClassOfStockAxis" order="1" priority="2" use="optional" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_StatementClassOfStockAxis" xlink:to="us-gaap_ClassOfStockDomain" order="23" priority="2" use="optional" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_StatementClassOfStockAxis" xlink:to="us-gaap_ClassOfStockDomain_2" order="23.0001" priority="2" use="optional" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="us-gaap_CommonStockMember" order="24" priority="2" use="optional" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="good_A7.00SeriesDCumulativeRedeemablePreferredStockMember" order="25" priority="2" use="optional" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="good_A6.625SeriesECumulativeRedeemablePreferredStockMember" order="26" priority="2" use="optional" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_EntityRegistrantName" order="28.001" priority="2" use="optional" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_AmendmentFlag" order="29.001" priority="2" use="optional" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_EntityCentralIndexKey" order="30.001" priority="2" use="optional" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_DocumentType" order="34.001" priority="2" use="optional" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_DocumentPeriodEndDate" order="35.001" priority="2" use="optional" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_EntityIncorporationStateCountryCode" order="36.001" priority="2" use="optional" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_EntityFileNumber" order="37.001" priority="2" use="optional" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_EntityTaxIdentificationNumber" order="38.001" priority="2" use="optional" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_EntityAddressAddressLine1" order="39.001" priority="2" use="optional" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_EntityAddressAddressLine2" order="40.001" priority="2" use="optional" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_EntityAddressCityOrTown" order="41.001" priority="2" use="optional" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_EntityAddressStateOrProvince" order="42.001" priority="2" use="optional" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_EntityAddressPostalZipCode" order="43.001" priority="2" use="optional" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_CityAreaCode" order="44.001" priority="2" use="optional" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_LocalPhoneNumber" order="45.001" priority="2" use="optional" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_WrittenCommunications" order="46.001" priority="2" use="optional" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_SolicitingMaterial" order="47.001" priority="2" use="optional" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_PreCommencementTenderOffer" order="48.001" priority="2" use="optional" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_PreCommencementIssuerTenderOffer" order="49.001" priority="2" use="optional" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_Security12bTitle" order="50.001" priority="2" use="optional" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_TradingSymbol" order="51.001" priority="2" use="optional" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_SecurityExchangeName" order="52.001" priority="2" use="optional" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_EntityEmergingGrowthCompany" order="53.001" priority="2" use="optional" />
  </link:definitionLink>
</linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.LAB
<SEQUENCE>5
<FILENAME>good-20210604_lab.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE
<TEXT>
<XBRL>
<?xml version="1.0" encoding="us-ascii" standalone="yes"?>
<!-- DFIN - https://www.dfinsolutions.com/ -->
<!-- CTU Version: Release 2020-8 Build:20210114.4 -->
<!-- Creation date: 6/7/2021 11:56:46 PM Eastern Time -->
<!-- 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: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_CoverAbstract" xlink:type="locator" xlink:label="dei_CoverAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_CoverAbstract" xlink:to="dei_CoverAbstract_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_CoverAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Cover [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_CoverAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cover [Abstract]</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityRegistrantName" xlink:type="locator" xlink:label="dei_EntityRegistrantName" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityRegistrantName" xlink:to="dei_EntityRegistrantName_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityRegistrantName_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Registrant Name</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_EntityRegistrantName_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Registrant Name</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_AmendmentFlag" xlink:type="locator" xlink:label="dei_AmendmentFlag" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_AmendmentFlag" xlink:to="dei_AmendmentFlag_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_AmendmentFlag_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Amendment Flag</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_AmendmentFlag_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amendment Flag</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityCentralIndexKey" xlink:type="locator" xlink:label="dei_EntityCentralIndexKey" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCentralIndexKey" xlink:to="dei_EntityCentralIndexKey_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityCentralIndexKey_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Central Index Key</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_EntityCentralIndexKey_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Central Index Key</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_DocumentType" xlink:type="locator" xlink:label="dei_DocumentType" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentType" xlink:to="dei_DocumentType_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_DocumentType_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Document Type</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_DocumentType_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Type</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_DocumentPeriodEndDate" xlink:type="locator" xlink:label="dei_DocumentPeriodEndDate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentPeriodEndDate" xlink:to="dei_DocumentPeriodEndDate_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_DocumentPeriodEndDate_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Document Period End Date</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_DocumentPeriodEndDate_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Period End Date</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityIncorporationStateCountryCode" xlink:type="locator" xlink:label="dei_EntityIncorporationStateCountryCode" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityIncorporationStateCountryCode" xlink:to="dei_EntityIncorporationStateCountryCode_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityIncorporationStateCountryCode_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Incorporation State Country Code</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_EntityIncorporationStateCountryCode_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Incorporation State Country Code</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityFileNumber" xlink:type="locator" xlink:label="dei_EntityFileNumber" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityFileNumber" xlink:to="dei_EntityFileNumber_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityFileNumber_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity File Number</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_EntityFileNumber_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity File Number</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityTaxIdentificationNumber" xlink:type="locator" xlink:label="dei_EntityTaxIdentificationNumber" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityTaxIdentificationNumber" xlink:to="dei_EntityTaxIdentificationNumber_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityTaxIdentificationNumber_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Tax Identification Number</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_EntityTaxIdentificationNumber_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Tax Identification Number</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityAddressAddressLine1" xlink:type="locator" xlink:label="dei_EntityAddressAddressLine1" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressAddressLine1" xlink:to="dei_EntityAddressAddressLine1_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressAddressLine1_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, Address Line One</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressAddressLine1_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, Address Line One</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityAddressAddressLine2" xlink:type="locator" xlink:label="dei_EntityAddressAddressLine2" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressAddressLine2" xlink:to="dei_EntityAddressAddressLine2_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressAddressLine2_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, Address Line Two</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressAddressLine2_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, Address Line Two</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityAddressCityOrTown" xlink:type="locator" xlink:label="dei_EntityAddressCityOrTown" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressCityOrTown" xlink:to="dei_EntityAddressCityOrTown_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressCityOrTown_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, City or Town</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressCityOrTown_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, City or Town</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityAddressStateOrProvince" xlink:type="locator" xlink:label="dei_EntityAddressStateOrProvince" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressStateOrProvince" xlink:to="dei_EntityAddressStateOrProvince_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressStateOrProvince_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, State or Province</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressStateOrProvince_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, State or Province</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityAddressPostalZipCode" xlink:type="locator" xlink:label="dei_EntityAddressPostalZipCode" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressPostalZipCode" xlink:to="dei_EntityAddressPostalZipCode_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressPostalZipCode_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, Postal Zip Code</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressPostalZipCode_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, Postal Zip Code</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_CityAreaCode" xlink:type="locator" xlink:label="dei_CityAreaCode" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_CityAreaCode" xlink:to="dei_CityAreaCode_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_CityAreaCode_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">City Area Code</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_CityAreaCode_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">City Area Code</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LocalPhoneNumber" xlink:type="locator" xlink:label="dei_LocalPhoneNumber" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_LocalPhoneNumber" xlink:to="dei_LocalPhoneNumber_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_LocalPhoneNumber_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Local Phone Number</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_LocalPhoneNumber_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Local Phone Number</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_WrittenCommunications" xlink:type="locator" xlink:label="dei_WrittenCommunications" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_WrittenCommunications" xlink:to="dei_WrittenCommunications_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_WrittenCommunications_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Written Communications</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_WrittenCommunications_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Written Communications</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_SolicitingMaterial" xlink:type="locator" xlink:label="dei_SolicitingMaterial" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_SolicitingMaterial" xlink:to="dei_SolicitingMaterial_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_SolicitingMaterial_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Soliciting Material</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_SolicitingMaterial_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Soliciting Material</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_PreCommencementTenderOffer" xlink:type="locator" xlink:label="dei_PreCommencementTenderOffer" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_PreCommencementTenderOffer" xlink:to="dei_PreCommencementTenderOffer_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_PreCommencementTenderOffer_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Pre Commencement Tender Offer</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_PreCommencementTenderOffer_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Pre Commencement Tender Offer</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_PreCommencementIssuerTenderOffer" xlink:type="locator" xlink:label="dei_PreCommencementIssuerTenderOffer" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_PreCommencementIssuerTenderOffer" xlink:to="dei_PreCommencementIssuerTenderOffer_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_PreCommencementIssuerTenderOffer_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Pre Commencement Issuer Tender Offer</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_PreCommencementIssuerTenderOffer_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Pre Commencement Issuer Tender Offer</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_Security12bTitle" xlink:type="locator" xlink:label="dei_Security12bTitle" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_Security12bTitle" xlink:to="dei_Security12bTitle_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_Security12bTitle_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Security 12b Title</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_Security12bTitle_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Security 12b Title</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_TradingSymbol" xlink:type="locator" xlink:label="dei_TradingSymbol" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_TradingSymbol" xlink:to="dei_TradingSymbol_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_TradingSymbol_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Trading Symbol</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_TradingSymbol_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Trading Symbol</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_SecurityExchangeName" xlink:type="locator" xlink:label="dei_SecurityExchangeName" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_SecurityExchangeName" xlink:to="dei_SecurityExchangeName_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_SecurityExchangeName_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Security Exchange Name</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_SecurityExchangeName_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Security Exchange Name</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityEmergingGrowthCompany" xlink:type="locator" xlink:label="dei_EntityEmergingGrowthCompany" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityEmergingGrowthCompany" xlink:to="dei_EntityEmergingGrowthCompany_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityEmergingGrowthCompany_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Emerging Growth Company</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_EntityEmergingGrowthCompany_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Emerging Growth Company</link:label>
    <link:loc xlink:href="good-20210604.xsd#good_DocumentAndEntityInformationTable" xlink:type="locator" xlink:label="good_DocumentAndEntityInformationTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="good_DocumentAndEntityInformationTable" xlink:to="good_DocumentAndEntityInformationTable_lbl" />
    <link:label xml:lang="en-US" xlink:label="good_DocumentAndEntityInformationTable_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Document And Entity Information [Table]</link:label>
    <link:label xml:lang="en-US" xlink:label="good_DocumentAndEntityInformationTable_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document And Entity Information [Table]</link:label>
    <link:loc xlink:href="good-20210604.xsd#good_DocumentAndEntityInformationLineItems" xlink:type="locator" xlink:label="good_DocumentAndEntityInformationLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="good_DocumentAndEntityInformationLineItems_lbl" />
    <link:label xml:lang="en-US" xlink:label="good_DocumentAndEntityInformationLineItems_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Document And Entity Information [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:label="good_DocumentAndEntityInformationLineItems_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document And Entity Information [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:type="locator" xlink:label="us-gaap_StatementClassOfStockAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementClassOfStockAxis" xlink:to="us-gaap_StatementClassOfStockAxis_lbl" />
    <link:label xml:lang="en-US" xlink:label="us-gaap_StatementClassOfStockAxis_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Class of Stock [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:label="us-gaap_StatementClassOfStockAxis_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class of Stock [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:type="locator" xlink:label="us-gaap_ClassOfStockDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="us-gaap_ClassOfStockDomain_lbl" />
    <link:label xml:lang="en-US" xlink:label="us-gaap_ClassOfStockDomain_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Class of Stock [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:label="us-gaap_ClassOfStockDomain_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class of Stock [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockMember" xlink:type="locator" xlink:label="us-gaap_CommonStockMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockMember" xlink:to="us-gaap_CommonStockMember_lbl" />
    <link:label xml:lang="en-US" xlink:label="us-gaap_CommonStockMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock [Member]</link:label>
    <link:label xml:lang="en-US" xlink:label="us-gaap_CommonStockMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common Stock [Member]</link:label>
    <link:loc xlink:href="good-20210604.xsd#good_A7.00SeriesDCumulativeRedeemablePreferredStockMember" xlink:type="locator" xlink:label="good_A7.00SeriesDCumulativeRedeemablePreferredStockMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="good_A7.00SeriesDCumulativeRedeemablePreferredStockMember" xlink:to="good_A7.00SeriesDCumulativeRedeemablePreferredStockMember_lbl" />
    <link:label xml:lang="en-US" xlink:label="good_A7.00SeriesDCumulativeRedeemablePreferredStockMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">A 7.00 Series D Cumulative Redeemable Preferred Stock [Member]</link:label>
    <link:label xml:lang="en-US" xlink:label="good_A7.00SeriesDCumulativeRedeemablePreferredStockMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">A 7.00 Series D Cumulative Redeemable Preferred Stock [Member]</link:label>
    <link:loc xlink:href="good-20210604.xsd#good_A6.625SeriesECumulativeRedeemablePreferredStockMember" xlink:type="locator" xlink:label="good_A6.625SeriesECumulativeRedeemablePreferredStockMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="good_A6.625SeriesECumulativeRedeemablePreferredStockMember" xlink:to="good_A6.625SeriesECumulativeRedeemablePreferredStockMember_lbl" />
    <link:label xml:lang="en-US" xlink:label="good_A6.625SeriesECumulativeRedeemablePreferredStockMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">A 6.625 Series E Cumulative Redeemable Preferred Stock [Member]</link:label>
    <link:label xml:lang="en-US" xlink:label="good_A6.625SeriesECumulativeRedeemablePreferredStockMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">A 6.625 Series E Cumulative Redeemable Preferred Stock [Member]</link:label>
  </link:labelLink>
</link:linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>6
<FILENAME>good-20210604_pre.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE
<TEXT>
<XBRL>
<?xml version="1.0" encoding="us-ascii" standalone="yes"?>
<!-- DFIN - https://www.dfinsolutions.com/ -->
<!-- CTU Version: Release 2020-8 Build:20210114.4 -->
<!-- Creation date: 6/7/2021 11:56:46 PM Eastern Time -->
<!-- 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"
    xmlns:xbrldt="http://xbrl.org/2005/xbrldt"
    xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://ir.gladstonecommercial.com//20210604/taxonomy/role/DocumentDocumentAndEntityInformation" xlink:href="good-20210604.xsd#Role_DocumentDocumentAndEntityInformation" xlink:type="simple" />
  <link:presentationLink xlink:type="extended" xlink:role="http://ir.gladstonecommercial.com//20210604/taxonomy/role/DocumentDocumentAndEntityInformation">
    <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:loc xlink:href="good-20210604.xsd#good_DocumentAndEntityInformationTable" xlink:type="locator" xlink:label="good_DocumentAndEntityInformationTable" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="good_DocumentAndEntityInformationTable" order="21" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:href="good-20210604.xsd#good_DocumentAndEntityInformationLineItems" xlink:type="locator" xlink:label="good_DocumentAndEntityInformationLineItems" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="good_DocumentAndEntityInformationTable" xlink:to="good_DocumentAndEntityInformationLineItems" order="22" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:type="locator" xlink:label="us-gaap_StatementClassOfStockAxis" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="good_DocumentAndEntityInformationTable" xlink:to="us-gaap_StatementClassOfStockAxis" order="1" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:type="locator" xlink:label="us-gaap_ClassOfStockDomain" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="us-gaap_StatementClassOfStockAxis" xlink:to="us-gaap_ClassOfStockDomain" order="23" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockMember" xlink:type="locator" xlink:label="us-gaap_CommonStockMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="us-gaap_CommonStockMember" order="24" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:href="good-20210604.xsd#good_A7.00SeriesDCumulativeRedeemablePreferredStockMember" xlink:type="locator" xlink:label="good_A7.00SeriesDCumulativeRedeemablePreferredStockMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="good_A7.00SeriesDCumulativeRedeemablePreferredStockMember" order="25" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:href="good-20210604.xsd#good_A6.625SeriesECumulativeRedeemablePreferredStockMember" xlink:type="locator" xlink:label="good_A6.625SeriesECumulativeRedeemablePreferredStockMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="good_A6.625SeriesECumulativeRedeemablePreferredStockMember" order="26" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <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:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_EntityRegistrantName" order="28.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <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:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_AmendmentFlag" order="29.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <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:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_EntityCentralIndexKey" order="30.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <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:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_DocumentType" order="34.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <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:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_DocumentPeriodEndDate" order="35.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <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:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_EntityIncorporationStateCountryCode" order="36.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <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:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_EntityFileNumber" order="37.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <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:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_EntityTaxIdentificationNumber" order="38.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <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:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_EntityAddressAddressLine1" order="39.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <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:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_EntityAddressAddressLine2" order="40.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <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:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_EntityAddressCityOrTown" order="41.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <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:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_EntityAddressStateOrProvince" order="42.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <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:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_EntityAddressPostalZipCode" order="43.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <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:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_CityAreaCode" order="44.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <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:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_LocalPhoneNumber" order="45.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <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:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_WrittenCommunications" order="46.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <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:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_SolicitingMaterial" order="47.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <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:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_PreCommencementTenderOffer" order="48.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <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:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_PreCommencementIssuerTenderOffer" order="49.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <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:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_Security12bTitle" order="50.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <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:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_TradingSymbol" order="51.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <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:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_SecurityExchangeName" order="52.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <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:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="good_DocumentAndEntityInformationLineItems" xlink:to="dei_EntityEmergingGrowthCompany" order="53.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
  </link:presentationLink>
</link:linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>g177953g57g09.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
begin 644 g177953g57g09.jpg
M_]C_X  02D9)1@ !  $ 8 !@  #__@ ?3$5!1"!496-H;F]L;V=I97,@26YC
M+B!6,2XP,0#_VP"$  @&!@<&!0@'!P<*"0@*#18.#0P,#1L3%! 6(!PB(1\<
M'QXC*#,K(R8P)AX?+#TM,#4V.3HY(BL_0SXX0S,X.3<!"0H*#0L-&@X.&C<D
M'R0W-S<W-S<W-S<W-S<W-S<W-S<W-S<W-S<W-S<W-S<W-S<W-S<W-S<W-S<W
M-S<W-S<W-__$ :(   $% 0$! 0$!           ! @,$!08'" D*"P$  P$!
M 0$! 0$! 0        $" P0%!@<("0H+$  " 0,# @0#!04$!    7T! @,
M!!$%$B$Q008346$'(G$4,H&1H0@C0K'!%5+1\"0S8G*""0H6%Q@9&B4F)R@I
M*C0U-C<X.3I#1$5&1TA)2E-455976%E:8V1E9F=H:6IS='5V=WAY>H.$A8:'
MB(F*DI.4E9:7F)F:HJ.DI::GJ*FJLK.TM;:WN+FZPL/$Q<;'R,G*TM/4U=;7
MV-G:X>+CY.7FY^CIZO'R\_3U]O?X^?H1  (! @0$ P0'!00$  $"=P ! @,1
M! 4A,08205$'87$3(C*!"!1"D:&QP0DC,U+P%6)RT0H6)#3A)?$7&!D:)B<H
M*2HU-C<X.3I#1$5&1TA)2E-455976%E:8V1E9F=H:6IS='5V=WAY>H*#A(6&
MAXB)BI*3E)66EYB9FJ*CI*6FIZBIJK*SM+6VM[BYNL+#Q,7&Q\C)RM+3U-76
MU]C9VN+CY.7FY^CIZO+S]/7V]_CY^O_  !$( !P"6@,!$0 "$0$#$0'_V@ ,
M P$  A$#$0 _ /?Z "@!KND:%W8(BC)+' %&X;'/WOCOPO89$VM6Q(ZB)O,/
M_CN:WCAJLMHG/+$T8[R.4U#XS:8C&+2M-N;R4\*7PBD^W4G\A75' 3WF['-+
M,(+2"N4$\4?$S6)T>PT06L6<@-!M##W:0_RQ5^QPL%[TK_UY&?ML7-^[&W]>
M9V6F^(KW3K9CXPNM)L)<#8L4_P Q]<J?Z$UR3I1D_P!RFSLA5E%?OFD(OQ)\
M(M<>2-80'^\8W"_GC%'U2M:_*+ZW1O;F-W3]:TO51G3]1MKG'412AB/J!TK&
M5.</B5C>-2$_A=R]4%A0 4 % '%_$'XD:3X L%-P/M.HS*3!:(<%O]IC_"N>
M_P"5 '*:+!\6?&=LNHW>MVWAFRF&Z*"*T5Y"IZ'#<C\6S[4 &NZ7\5/"FF7.
MK67C&WUBWM(VFE@N+-(V**,G'7/ ]10!V^@:AK/BGX=V.H?:(=,U6^MQ(LL<
M/F)&2<@A&/.1C@GO0!XY)X_^(<?Q*_X0S_A(+8R?;!;?:?L*8P?XMOT[9_&@
M#W[2;>^M-+@@U*_%_>(#YEP(1$'.3_".!Q@?A0!=H X3XM>-)?!7@R2YLIEC
MU.Y<0VI(#8/5FP>#@9_$B@"'X/\ C6X\9^#C-J-RLVJ6DS17!"A20>4; P!P
M<?\  30!W=Y'/-93Q6UQ]FN'C98YM@?RV(X;:>#@\XH ^==<^(WQ!T;XA/X2
M'B"WF87,5NMR;&-<[]N#MY_O>M 'HM[H/Q:BA9[+QEIMQ(!D1R6"Q@^V<&@#
MD-,^-?B/PWXD&A^/M)CAPP5YXEVO&#T? )5U_P!W'X]* /5_&GBZU\(>$+K7
MG"SA5 @0-Q*[?=&?3O\ 0&@#@/"D7Q(\?Z,FOW'BV/0[2X)-M;VMDCY .,G)
MR!D'J30!I^$=1\;Z;\29O"OB75;?4[4:>;V*=( C%=X0= ,'.<@Y^M &;IUQ
M\4O$>L>(/[,\06%I9:?J4MI&MQ:J6(4Y&,(<C!7F@#D%^(7Q*;X@?\(<-<L?
MMGVDVWG_ &5=F?7[N<?A0!V%]<?%'P[KWAU-4\06%W8ZAJ,5K*MO:J" 3DYR
MHQP#S0!L_$OXKVG@79I]G;B^UJ90RPDD)&#T+8Y.>P'/TXH H:;X?^*FOV:7
M^J>,8]#>8;UL[>Q1S&#T#$XP?;)H YK5?B!\0?A?KL-IXJ$&M:7,3Y5RD8C9
MU'7:5 PPSR&!^O>@#U_[:_BKPI%>^&]76T-VBO!=^0)=HSR"A.,\%3Z'Z4 >
M!:/\<?%&F>,8[;Q%>17.F0SM!<B.W52 "5WC SP><4 ?2-C?6NI6,-[97"7%
MM,H>.2,Y5AZB@#R[4[CQ[:?$33?#,7B^'R-1AEG6<Z9'NB"9^7;GGMSD4 7O
MBGJ7BSPIX877M*U^-$M4BBG@>S0^:Y;!D#'[O4?+C% ')> O$'Q/^(.FW=[9
M>)-/LTMY1$5DLU))P#GA?>@#KO#K_$+3_']MI?B/5;?4=-EM))_,M[8(%((
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M-G[ENF1]2%Q@?4US+%5:KM%J)TO"4J*O).1@3_$J/1]T&@^%K33&'&^5,O\
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MSSUH YQ_A3X&D<N_AVW=B<DLSDG]: ->S\(Z%I^B7.C6FGK#I]R2985D;#9
M!YSD< 4 8Q^$G@,C'_"-VW_?3_XT (GPC\!QN&7PW;Y!R,NY_P#9J -36O O
MAGQ%>B\U?28KNX"A0TC-P!TX!Q0 W1O ?ACP[?B^TC2(K2Y"E=\;-T/7@G%
M#M;\"^&/$E\M[J^C07=RJ",2/D':.@X/N: -/2-&T_0=-CT_2[9;:TC)*QJ2
M0,G)ZT 9&M_#[PGXCN6N=5T*VGN&^]* 4=OJRD$T 9,/P9^'\$@=?#L9(_OW
M$K#\BV* .AO?"6@:AHL&C7&EP'38&#1VR HBG!'1<?WC^= &.GPI\#1N'3P[
M;HPY!5G!'ZT 7=6^'_A77=1DU#4]'BNKI\;I'=L\  8YP. .E &SIFEV>C6$
M=C80^3;1Y*IN+8R<GDDGJ: .?O/AGX-U"[DNKS0H9YY&+,\CN223D]_4T 7M
M+\%^'M$L[NSTS35M;>[79,D<CC<.??CJ>E &2?A+X#(P?#=M_P!]/_C0 T?"
E+P$#G_A&[?\ [[?_ .*H [.&&.W@C@A0)%&H1%'0 # % '__V0$!

end
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>8
<FILENAME>d177953d8k_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:good="http://ir.gladstonecommercial.com/20210604"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:us-gaap="http://fasb.org/us-gaap/2020-01-31"
  xmlns:xbrldi="http://xbrl.org/2006/xbrldi"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="good-20210604.xsd" xlink:type="simple"/>
    <context id="duration_2021-06-04_to_2021-06-04">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001234006</identifier>
        </entity>
        <period>
            <startDate>2021-06-04</startDate>
            <endDate>2021-06-04</endDate>
        </period>
    </context>
    <context id="duration_2021-06-04_to_2021-06-04_us-gaap-StatementClassOfStockAxis_us-gaap-CommonStockMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001234006</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">us-gaap:CommonStockMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-06-04</startDate>
            <endDate>2021-06-04</endDate>
        </period>
    </context>
    <context id="duration_2021-06-04_to_2021-06-04_us-gaap-StatementClassOfStockAxis_good-A7.00SeriesDCumulativeRedeemablePreferredStockMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001234006</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">good:A7.00SeriesDCumulativeRedeemablePreferredStockMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-06-04</startDate>
            <endDate>2021-06-04</endDate>
        </period>
    </context>
    <context id="duration_2021-06-04_to_2021-06-04_us-gaap-StatementClassOfStockAxis_good-A6.625SeriesECumulativeRedeemablePreferredStockMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001234006</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">good:A6.625SeriesECumulativeRedeemablePreferredStockMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-06-04</startDate>
            <endDate>2021-06-04</endDate>
        </period>
    </context>
    <dei:EntityRegistrantName
      contextRef="duration_2021-06-04_to_2021-06-04"
      id="Hidden_dei_EntityRegistrantName">GLADSTONE COMMERCIAL CORP</dei:EntityRegistrantName>
    <dei:AmendmentFlag contextRef="duration_2021-06-04_to_2021-06-04">false</dei:AmendmentFlag>
    <dei:EntityCentralIndexKey
      contextRef="duration_2021-06-04_to_2021-06-04"
      id="Hidden_dei_EntityCentralIndexKey">0001234006</dei:EntityCentralIndexKey>
    <dei:DocumentType contextRef="duration_2021-06-04_to_2021-06-04">8-K</dei:DocumentType>
    <dei:DocumentPeriodEndDate contextRef="duration_2021-06-04_to_2021-06-04">2021-06-04</dei:DocumentPeriodEndDate>
    <dei:EntityIncorporationStateCountryCode contextRef="duration_2021-06-04_to_2021-06-04">MD</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber contextRef="duration_2021-06-04_to_2021-06-04">001-33097</dei:EntityFileNumber>
    <dei:EntityTaxIdentificationNumber contextRef="duration_2021-06-04_to_2021-06-04">02-0681276</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressAddressLine1 contextRef="duration_2021-06-04_to_2021-06-04">1521 Westbranch Drive</dei:EntityAddressAddressLine1>
    <dei:EntityAddressAddressLine2 contextRef="duration_2021-06-04_to_2021-06-04">Suite 100</dei:EntityAddressAddressLine2>
    <dei:EntityAddressCityOrTown contextRef="duration_2021-06-04_to_2021-06-04">McLean</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince contextRef="duration_2021-06-04_to_2021-06-04">VA</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode contextRef="duration_2021-06-04_to_2021-06-04">22102</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode contextRef="duration_2021-06-04_to_2021-06-04">(703)</dei:CityAreaCode>
    <dei:LocalPhoneNumber contextRef="duration_2021-06-04_to_2021-06-04">287-5800</dei:LocalPhoneNumber>
    <dei:WrittenCommunications contextRef="duration_2021-06-04_to_2021-06-04">false</dei:WrittenCommunications>
    <dei:SolicitingMaterial contextRef="duration_2021-06-04_to_2021-06-04">false</dei:SolicitingMaterial>
    <dei:PreCommencementTenderOffer contextRef="duration_2021-06-04_to_2021-06-04">false</dei:PreCommencementTenderOffer>
    <dei:PreCommencementIssuerTenderOffer contextRef="duration_2021-06-04_to_2021-06-04">false</dei:PreCommencementIssuerTenderOffer>
    <dei:Security12bTitle contextRef="duration_2021-06-04_to_2021-06-04_us-gaap-StatementClassOfStockAxis_us-gaap-CommonStockMember">Common Stock, $0.001 par value per share</dei:Security12bTitle>
    <dei:TradingSymbol contextRef="duration_2021-06-04_to_2021-06-04_us-gaap-StatementClassOfStockAxis_us-gaap-CommonStockMember">GOOD</dei:TradingSymbol>
    <dei:SecurityExchangeName contextRef="duration_2021-06-04_to_2021-06-04_us-gaap-StatementClassOfStockAxis_us-gaap-CommonStockMember">NASDAQ</dei:SecurityExchangeName>
    <dei:Security12bTitle contextRef="duration_2021-06-04_to_2021-06-04_us-gaap-StatementClassOfStockAxis_good-A7.00SeriesDCumulativeRedeemablePreferredStockMember">7.00% Series D Cumulative Redeemable Preferred Stock, par value $0.001 per share</dei:Security12bTitle>
    <dei:TradingSymbol contextRef="duration_2021-06-04_to_2021-06-04_us-gaap-StatementClassOfStockAxis_good-A7.00SeriesDCumulativeRedeemablePreferredStockMember">GOODM</dei:TradingSymbol>
    <dei:SecurityExchangeName contextRef="duration_2021-06-04_to_2021-06-04_us-gaap-StatementClassOfStockAxis_good-A7.00SeriesDCumulativeRedeemablePreferredStockMember">NASDAQ</dei:SecurityExchangeName>
    <dei:Security12bTitle contextRef="duration_2021-06-04_to_2021-06-04_us-gaap-StatementClassOfStockAxis_good-A6.625SeriesECumulativeRedeemablePreferredStockMember">6.625% Series E Cumulative Redeemable Preferred Stock, par value $0.001 per share</dei:Security12bTitle>
    <dei:TradingSymbol contextRef="duration_2021-06-04_to_2021-06-04_us-gaap-StatementClassOfStockAxis_good-A6.625SeriesECumulativeRedeemablePreferredStockMember">GOODN</dei:TradingSymbol>
    <dei:SecurityExchangeName contextRef="duration_2021-06-04_to_2021-06-04_us-gaap-StatementClassOfStockAxis_good-A6.625SeriesECumulativeRedeemablePreferredStockMember">NASDAQ</dei:SecurityExchangeName>
    <dei:EntityEmergingGrowthCompany contextRef="duration_2021-06-04_to_2021-06-04">false</dei:EntityEmergingGrowthCompany>
</xbrl>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>9
<FILENAME>R1.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139951971685944">
<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>Jun. 04, 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_good_DocumentAndEntityInformationLineItems', window );"><strong>Document And Entity Information [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityRegistrantName', window );">Entity Registrant Name</a></td>
<td class="text">GLADSTONE COMMERCIAL CORP<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_AmendmentFlag', window );">Amendment Flag</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityCentralIndexKey', window );">Entity Central Index Key</a></td>
<td class="text">0001234006<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentType', window );">Document Type</a></td>
<td class="text">8-K<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentPeriodEndDate', window );">Document Period End Date</a></td>
<td class="text">Jun.  04,  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_EntityIncorporationStateCountryCode', window );">Entity Incorporation State Country Code</a></td>
<td class="text">MD<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityFileNumber', window );">Entity File Number</a></td>
<td class="text">001-33097<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">02-0681276<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">1521 Westbranch Drive<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 100<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">McLean<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">VA<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">22102<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">(703)<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">287-5800<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_EntityEmergingGrowthCompany', window );">Entity Emerging Growth Company</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementClassOfStockAxis=us-gaap_CommonStockMember', window );">Common Stock [Member]</a></td>
<td class="text">&#160;<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_good_DocumentAndEntityInformationLineItems', window );"><strong>Document And Entity Information [Line Items]</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_Security12bTitle', window );">Security 12b Title</a></td>
<td class="text">Common Stock, $0.001 par value per share<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_TradingSymbol', window );">Trading Symbol</a></td>
<td class="text">GOOD<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_SecurityExchangeName', window );">Security Exchange Name</a></td>
<td class="text">NASDAQ<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementClassOfStockAxis=good_A7.00SeriesDCumulativeRedeemablePreferredStockMember', window );">A 7.00 Series D Cumulative Redeemable Preferred Stock [Member]</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_good_DocumentAndEntityInformationLineItems', window );"><strong>Document And Entity Information [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_Security12bTitle', window );">Security 12b Title</a></td>
<td class="text">7.00% Series D Cumulative Redeemable Preferred Stock, par value $0.001 per share<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_TradingSymbol', window );">Trading Symbol</a></td>
<td class="text">GOODM<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_SecurityExchangeName', window );">Security Exchange Name</a></td>
<td class="text">NASDAQ<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementClassOfStockAxis=good_A6.625SeriesECumulativeRedeemablePreferredStockMember', window );">A 6.625 Series E Cumulative Redeemable Preferred Stock [Member]</a></td>
<td class="text">&#160;<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_good_DocumentAndEntityInformationLineItems', window );"><strong>Document And Entity Information [Line Items]</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_Security12bTitle', window );">Security 12b Title</a></td>
<td class="text">6.625% Series E Cumulative Redeemable Preferred Stock, par value $0.001 per share<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_TradingSymbol', window );">Trading Symbol</a></td>
<td class="text">GOODN<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_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_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_EntityFileNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityFileNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:fileNumberItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityIncorporationStateCountryCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Two-character EDGAR code representing the state or country of incorporation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityIncorporationStateCountryCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:edgarStateCountryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityRegistrantName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityRegistrantName</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityTaxIdentificationNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityTaxIdentificationNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:employerIdItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_LocalPhoneNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Local phone number for entity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_LocalPhoneNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_PreCommencementIssuerTenderOffer">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 13e<br> -Subsection 4c<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_PreCommencementIssuerTenderOffer</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_PreCommencementTenderOffer">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 14d<br> -Subsection 2b<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_PreCommencementTenderOffer</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_Security12bTitle">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Title of a 12(b) registered security.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_Security12bTitle</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:securityTitleItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_SecurityExchangeName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Name of the Exchange on which a security is registered.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection d1-1<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_SecurityExchangeName</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:edgarExchangeCodeItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_SolicitingMaterial">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Section 14a<br> -Number 240<br> -Subsection 12<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_SolicitingMaterial</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_TradingSymbol">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Trading symbol of an instrument as listed on an exchange.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_TradingSymbol</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:tradingSymbolItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_WrittenCommunications">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Securities Act<br> -Number 230<br> -Section 425<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_WrittenCommunications</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_good_DocumentAndEntityInformationLineItems">
<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 );">- References</a><div><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;">good_DocumentAndEntityInformationLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>good_</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_us-gaap_StatementClassOfStockAxis=us-gaap_CommonStockMember">
<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 );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementClassOfStockAxis=us-gaap_CommonStockMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementClassOfStockAxis=good_A7.00SeriesDCumulativeRedeemablePreferredStockMember">
<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 );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementClassOfStockAxis=good_A7.00SeriesDCumulativeRedeemablePreferredStockMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementClassOfStockAxis=good_A6.625SeriesECumulativeRedeemablePreferredStockMember">
<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 );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementClassOfStockAxis=good_A6.625SeriesECumulativeRedeemablePreferredStockMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EXCEL
<SEQUENCE>10
<FILENAME>Financial_Report.xlsx
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
begin 644 Financial_Report.xlsx
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MTG1X#SY['R73>RHY_U=3_ 102P,$%     @ LH#'4I>*NQS     $P(   L
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MEG!:(.+)(&UI5GVP3TZTYWD7-_=%KLWC":[?#'!X=/X!4$L#!!0    ( +*
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M;64O=&AE;64Q+GAM;%!+ 0(4 Q0    ( +* QU+&,F_>'@4  *L7   8
M          " @0T(  !X;"]W;W)K<VAE971S+W-H965T,2YX;6Q02P$"% ,4
M    " "R@,=2GZ ;\+$"  #B#   #0              @ %A#0  >&PO<W1Y
M;&5S+GAM;%!+ 0(4 Q0    ( +* QU*7BKL<P    !,"   +
M  "  3T0  !?<F5L<R\N<F5L<U!+ 0(4 Q0    ( +* QU(<.&7J/P$  #P"
M   /              "  281  !X;"]W;W)K8F]O:RYX;6Q02P$"% ,4
M" "R@,=2)!Z;HJT   #X 0  &@              @ &2$@  >&PO7W)E;',O
M=V]R:V)O;VLN>&UL+G)E;'-02P$"% ,4    " "R@,=299!YDAD!  #/ P
M$P              @ %W$P  6T-O;G1E;G1?5'EP97-=+GAM;%!+!08
.."0 ) #X"  #!%      !

end
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>11
<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>12
<FILENAME>report.css
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
/* Updated 2009-11-04 */
/* v2.2.0.24 */

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

..report .outerFootnotes {
	font-size: 1em;
}
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>13
<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>4</ContextCount>
  <ElementCount>96</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>3</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>0</UnitCount>
  <MyReports>
    <Report instance="d177953d8k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>100000 - Document - Document and Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ir.gladstonecommercial.com//20210604/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="d177953d8k.htm">d177953d8k.htm</File>
    <File>d177953dex991.htm</File>
    <File>good-20210604.xsd</File>
    <File>good-20210604_def.xml</File>
    <File>good-20210604_lab.xml</File>
    <File>good-20210604_pre.xml</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy>http://xbrl.sec.gov/dei/2020-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://fasb.org/us-gaap/2020-01-31</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>false</HasCalculationLinkbase>
</FilingSummary>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>JSON
<SEQUENCE>16
<FILENAME>MetaLinks.json
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
{
 "instance": {
  "d177953d8k.htm": {
   "axisCustom": 0,
   "axisStandard": 1,
   "contextCount": 4,
   "dts": {
    "definitionLink": {
     "local": [
      "good-20210604_def.xml"
     ],
     "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": [
      "d177953d8k.htm"
     ]
    },
    "labelLink": {
     "local": [
      "good-20210604_lab.xml"
     ],
     "remote": [
      "https://xbrl.sec.gov/dei/2020/dei-doc-2020-01-31.xml"
     ]
    },
    "presentationLink": {
     "local": [
      "good-20210604_pre.xml"
     ]
    },
    "referenceLink": {
     "remote": [
      "https://xbrl.sec.gov/dei/2020/dei-ref-2020-01-31.xml"
     ]
    },
    "schema": {
     "local": [
      "good-20210604.xsd"
     ],
     "remote": [
      "http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xl-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xlink-2003-12-31.xsd",
      "https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd",
      "http://www.xbrl.org/2005/xbrldt-2005.xsd",
      "http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd",
      "http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd",
      "http://xbrl.sec.gov/sic/2011/sic-2011-01-31.xsd",
      "https://xbrl.sec.gov/naics/2017/naics-2017-01-31.xsd",
      "http://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/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/country/2020/country-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": 31,
   "entityCount": 1,
   "hidden": {
    "http://xbrl.sec.gov/dei/2020-01-31": 3,
    "total": 3
   },
   "keyCustom": 0,
   "keyStandard": 96,
   "memberCustom": 2,
   "memberStandard": 1,
   "nsprefix": "good",
   "nsuri": "http://ir.gladstonecommercial.com/20210604",
   "report": {
    "R1": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "p",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "d177953d8k.htm",
      "contextRef": "duration_2021-06-04_to_2021-06-04",
      "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://ir.gladstonecommercial.com//20210604/taxonomy/role/DocumentDocumentAndEntityInformation",
     "shortName": "Document and Entity Information",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "p",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "d177953d8k.htm",
      "contextRef": "duration_2021-06-04_to_2021-06-04",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "dei:DocumentType",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    }
   },
   "segmentCount": 3,
   "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://ir.gladstonecommercial.com//20210604/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://ir.gladstonecommercial.com//20210604/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_CoverAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Cover page.",
        "label": "Cover [Abstract]",
        "terseLabel": "Cover [Abstract]"
       }
      }
     },
     "localname": "CoverAbstract",
     "nsuri": "http://xbrl.sec.gov/dei/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://ir.gladstonecommercial.com//20210604/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://ir.gladstonecommercial.com//20210604/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "submissionTypeItemType"
    },
    "dei_EntityAddressAddressLine1": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Address Line 1 such as Attn, Building Name, Street Name",
        "label": "Entity Address, Address Line One",
        "terseLabel": "Entity Address, Address Line One"
       }
      }
     },
     "localname": "EntityAddressAddressLine1",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://ir.gladstonecommercial.com//20210604/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressAddressLine2": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Address Line 2 such as Street or Suite number",
        "label": "Entity Address, Address Line Two",
        "terseLabel": "Entity Address, Address Line Two"
       }
      }
     },
     "localname": "EntityAddressAddressLine2",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://ir.gladstonecommercial.com//20210604/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://ir.gladstonecommercial.com//20210604/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://ir.gladstonecommercial.com//20210604/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://ir.gladstonecommercial.com//20210604/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://ir.gladstonecommercial.com//20210604/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://ir.gladstonecommercial.com//20210604/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://ir.gladstonecommercial.com//20210604/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "fileNumberItemType"
    },
    "dei_EntityIncorporationStateCountryCode": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Two-character EDGAR code representing the state or country of incorporation.",
        "label": "Entity Incorporation State Country Code",
        "terseLabel": "Entity Incorporation State Country Code"
       }
      }
     },
     "localname": "EntityIncorporationStateCountryCode",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://ir.gladstonecommercial.com//20210604/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://ir.gladstonecommercial.com//20210604/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://ir.gladstonecommercial.com//20210604/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://ir.gladstonecommercial.com//20210604/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://ir.gladstonecommercial.com//20210604/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://ir.gladstonecommercial.com//20210604/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_Security12bTitle": {
     "auth_ref": [
      "r0"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Title of a 12(b) registered security.",
        "label": "Security 12b Title",
        "terseLabel": "Security 12b Title"
       }
      }
     },
     "localname": "Security12bTitle",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://ir.gladstonecommercial.com//20210604/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://ir.gladstonecommercial.com//20210604/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://ir.gladstonecommercial.com//20210604/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://ir.gladstonecommercial.com//20210604/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://ir.gladstonecommercial.com//20210604/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "booleanItemType"
    },
    "good_A6.625SeriesECumulativeRedeemablePreferredStockMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "A 6.625 Series E Cumulative Redeemable Preferred Stock [Member]",
        "terseLabel": "A 6.625 Series E Cumulative Redeemable Preferred Stock [Member]"
       }
      }
     },
     "localname": "A6.625SeriesECumulativeRedeemablePreferredStockMember",
     "nsuri": "http://ir.gladstonecommercial.com/20210604",
     "presentation": [
      "http://ir.gladstonecommercial.com//20210604/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "domainItemType"
    },
    "good_A7.00SeriesDCumulativeRedeemablePreferredStockMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "A 7.00 Series D Cumulative Redeemable Preferred Stock [Member]",
        "terseLabel": "A 7.00 Series D Cumulative Redeemable Preferred Stock [Member]"
       }
      }
     },
     "localname": "A7.00SeriesDCumulativeRedeemablePreferredStockMember",
     "nsuri": "http://ir.gladstonecommercial.com/20210604",
     "presentation": [
      "http://ir.gladstonecommercial.com//20210604/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "domainItemType"
    },
    "good_DocumentAndEntityInformationLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Document And Entity Information [Line Items]",
        "terseLabel": "Document And Entity Information [Line Items]"
       }
      }
     },
     "localname": "DocumentAndEntityInformationLineItems",
     "nsuri": "http://ir.gladstonecommercial.com/20210604",
     "presentation": [
      "http://ir.gladstonecommercial.com//20210604/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "stringItemType"
    },
    "good_DocumentAndEntityInformationTable": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Document And Entity Information [Table]",
        "terseLabel": "Document And Entity Information [Table]"
       }
      }
     },
     "localname": "DocumentAndEntityInformationTable",
     "nsuri": "http://ir.gladstonecommercial.com/20210604",
     "presentation": [
      "http://ir.gladstonecommercial.com//20210604/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ClassOfStockDomain": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Class of Stock [Domain]",
        "terseLabel": "Class of Stock [Domain]"
       }
      }
     },
     "localname": "ClassOfStockDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://ir.gladstonecommercial.com//20210604/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CommonStockMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Common Stock [Member]",
        "terseLabel": "Common Stock [Member]"
       }
      }
     },
     "localname": "CommonStockMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://ir.gladstonecommercial.com//20210604/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_StatementClassOfStockAxis": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Class of Stock [Axis]",
        "terseLabel": "Class of Stock [Axis]"
       }
      }
     },
     "localname": "StatementClassOfStockAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://ir.gladstonecommercial.com//20210604/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "stringItemType"
    }
   },
   "unitCount": 0
  }
 },
 "std_ref": {
  "r0": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "b"
  },
  "r1": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "d1-1"
  },
  "r2": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "13e",
   "Subsection": "4c"
  },
  "r3": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "14d",
   "Subsection": "2b"
  },
  "r4": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "14a",
   "Subsection": "12"
  },
  "r5": {
   "Name": "Regulation 12B",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "b-2"
  },
  "r6": {
   "Name": "Securities Act",
   "Number": "230",
   "Publisher": "SEC",
   "Section": "425"
  }
 },
 "version": "2.1"
}
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>ZIP
<SEQUENCE>17
<FILENAME>0001193125-21-184284-xbrl.zip
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
begin 644 0001193125-21-184284-xbrl.zip
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MVZ0MQ7/8P;!U@+DO5!&7M;AOSA6:O +KF"0/)8_.(N?) 3+:Z87.+8@KPS!
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M=[T,_"S4RIBG71=0WRM?&?EOV^7(;_[T2U(MK#I<I4%GN@)B:G=:50BI"OW
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M\PO9Y3OFG_F]IV[Y%U!+ 0(4 Q0    ( +* QU)(;YNVOQ   (EU   .
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M9"TR,#(Q,#8P-%]L86(N>&UL4$L! A0#%     @ LH#'4C-;-!G&!0  :#P
M !4              ( !72D  &=O;V0M,C R,3 V,#1?<')E+GAM;%!+!08
1    !@ & (,!  !6+P     !

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