    <SEC-DOCUMENT>0000852772-22-000004-index.html : 20220110
    <SEC-HEADER>0000852772-22-000004.hdr.sgml : 20220110
    <ACCEPTANCE-DATETIME>20220110084120
    ACCESSION NUMBER:		0000852772-22-000004
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		59
    CONFORMED PERIOD OF REPORT:	20220110
    ITEM INFORMATION:		Results of Operations and Financial Condition
    ITEM INFORMATION:		Regulation FD Disclosure
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20220110
    DATE AS OF CHANGE:		20220110

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			DENNY'S Corp
    		CENTRAL INDEX KEY:			0000852772
    		STANDARD INDUSTRIAL CLASSIFICATION:	RETAIL-EATING PLACES [5812]
    		IRS NUMBER:				133487402
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1229

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-18051
    		FILM NUMBER:		22519869

    	BUSINESS ADDRESS:
    		STREET 1:		203 EAST MAIN STREET
    		CITY:			SPARTANBURG
    		STATE:			SC
    		ZIP:			29319
    		BUSINESS PHONE:		8645978000

    	MAIL ADDRESS:
    		STREET 1:		203 EAST MAIN STREET
    		CITY:			SPARTANBURG
    		STATE:			SC
    		ZIP:			29319

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	DENNYS CORP
    		DATE OF NAME CHANGE:	20020801

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	ADVANTICA RESTAURANT GROUP INC
    		DATE OF NAME CHANGE:	19980107

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	FLAGSTAR COMPANIES INC
    		DATE OF NAME CHANGE:	19930722
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>denn-20220110.htm
    <DESCRIPTION>8-K
    <TEXT>
    Document 1 - file: denn-20220110.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>q42021pre-releaseearningsp.htm
    <DESCRIPTION>EX-99.1
    <TEXT>
    Document 2 - file: q42021pre-releaseearningsp.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.2
    <SEQUENCE>3
    <FILENAME>denninvestorpresentation.htm
    <DESCRIPTION>EX-99.2
    <TEXT>
    Document 3 - file: denninvestorpresentation.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.SCH
    <SEQUENCE>4
    <FILENAME>denn-20220110.xsd
    <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
    <TEXT>
    Document 4 - file: denn-20220110.xsd

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.LAB
    <SEQUENCE>5
    <FILENAME>denn-20220110_lab.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT
    <TEXT>
    Document 5 - file: denn-20220110_lab.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.PRE
    <SEQUENCE>6
    <FILENAME>denn-20220110_pre.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT
    <TEXT>
    Document 6 - file: denn-20220110_pre.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>denn-20220110_g1.jpg
    <TEXT>
    Document 7 - file: denn-20220110_g1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>denninvestorpresentation001.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: denninvestorpresentation001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>denninvestorpresentation002.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 9 - file: denninvestorpresentation002.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>denninvestorpresentation003.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 10 - file: denninvestorpresentation003.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>denninvestorpresentation004.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 11 - file: denninvestorpresentation004.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>denninvestorpresentation005.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 12 - file: denninvestorpresentation005.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>denninvestorpresentation006.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 13 - file: denninvestorpresentation006.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>denninvestorpresentation007.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 14 - file: denninvestorpresentation007.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>denninvestorpresentation008.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 15 - file: denninvestorpresentation008.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>denninvestorpresentation009.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 16 - file: denninvestorpresentation009.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>17
    <FILENAME>denninvestorpresentation010.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 17 - file: denninvestorpresentation010.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>18
    <FILENAME>denninvestorpresentation011.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 18 - file: denninvestorpresentation011.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>19
    <FILENAME>denninvestorpresentation012.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 19 - file: denninvestorpresentation012.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>20
    <FILENAME>denninvestorpresentation013.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 20 - file: denninvestorpresentation013.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>21
    <FILENAME>denninvestorpresentation014.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 21 - file: denninvestorpresentation014.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>22
    <FILENAME>denninvestorpresentation015.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 22 - file: denninvestorpresentation015.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>23
    <FILENAME>denninvestorpresentation016.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 23 - file: denninvestorpresentation016.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>24
    <FILENAME>denninvestorpresentation017.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 24 - file: denninvestorpresentation017.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>25
    <FILENAME>denninvestorpresentation018.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 25 - file: denninvestorpresentation018.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>26
    <FILENAME>denninvestorpresentation019.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 26 - file: denninvestorpresentation019.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>27
    <FILENAME>denninvestorpresentation020.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 27 - file: denninvestorpresentation020.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>28
    <FILENAME>denninvestorpresentation021.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 28 - file: denninvestorpresentation021.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>29
    <FILENAME>denninvestorpresentation022.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 29 - file: denninvestorpresentation022.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>30
    <FILENAME>denninvestorpresentation023.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 30 - file: denninvestorpresentation023.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>31
    <FILENAME>denninvestorpresentation024.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 31 - file: denninvestorpresentation024.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>32
    <FILENAME>denninvestorpresentation025.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 32 - file: denninvestorpresentation025.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>33
    <FILENAME>denninvestorpresentation026.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 33 - file: denninvestorpresentation026.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>34
    <FILENAME>denninvestorpresentation027.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 34 - file: denninvestorpresentation027.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>35
    <FILENAME>denninvestorpresentation028.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 35 - file: denninvestorpresentation028.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>36
    <FILENAME>denninvestorpresentation029.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 36 - file: denninvestorpresentation029.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>37
    <FILENAME>denninvestorpresentation030.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 37 - file: denninvestorpresentation030.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>38
    <FILENAME>denninvestorpresentation031.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 38 - file: denninvestorpresentation031.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>39
    <FILENAME>denninvestorpresentation032.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 39 - file: denninvestorpresentation032.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>40
    <FILENAME>denninvestorpresentation033.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 40 - file: denninvestorpresentation033.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>41
    <FILENAME>denninvestorpresentation034.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 41 - file: denninvestorpresentation034.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>42
    <FILENAME>denninvestorpresentation035.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 42 - file: denninvestorpresentation035.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>43
    <FILENAME>denninvestorpresentation036.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 43 - file: denninvestorpresentation036.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>44
    <FILENAME>denninvestorpresentation037.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 44 - file: denninvestorpresentation037.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>45
    <FILENAME>denninvestorpresentation038.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 45 - file: denninvestorpresentation038.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>46
    <FILENAME>denninvestorpresentation039.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 46 - file: denninvestorpresentation039.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>47
    <FILENAME>denninvestorpresentation040.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 47 - file: denninvestorpresentation040.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>48
    <FILENAME>denninvestorpresentation041.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 48 - file: denninvestorpresentation041.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>49
    <FILENAME>denninvestorpresentation042.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 49 - file: denninvestorpresentation042.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>50
    <FILENAME>denninvestorpresentation043.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 50 - file: denninvestorpresentation043.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>51
    <FILENAME>image_0a.jpg
    <TEXT>
    Document 51 - file: image_0a.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>52
    <FILENAME>R1.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 52 - file: R1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>53
    <FILENAME>denn-20220110_htm.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 53 - file: denn-20220110_htm.html

    Document 53 - RAW XML: denn-20220110_htm.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EXCEL
    <SEQUENCE>54
    <FILENAME>Financial_Report.xlsx
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 54 - file: Financial_Report.xlsx

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>55
    <FILENAME>Show.js
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 55 - file: Show.js

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>56
    <FILENAME>report.css
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 56 - file: report.css

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>57
    <FILENAME>FilingSummary.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 57 - file: FilingSummary.html

    Document 57 - RAW XML: FilingSummary.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>JSON
    <SEQUENCE>59
    <FILENAME>MetaLinks.json
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 59 - file: MetaLinks.json

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>ZIP
    <SEQUENCE>60
    <FILENAME>0000852772-22-000004-xbrl.zip
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 60 - file: 0000852772-22-000004-xbrl.zip

    </DOCUMENT>
    </SEC-DOCUMENT>