<SEC-DOCUMENT>0000067716-22-000003.txt : 20220110
<SEC-HEADER>0000067716-22-000003.hdr.sgml : 20220110
<ACCEPTANCE-DATETIME>20220110171431
ACCESSION NUMBER:		0000067716-22-000003
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		13
CONFORMED PERIOD OF REPORT:	20220106
ITEM INFORMATION:		Mine Safety - Reporting of Shutdowns and Patterns of Violations
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20220110
DATE AS OF CHANGE:		20220110

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MDU RESOURCES GROUP INC
		CENTRAL INDEX KEY:			0000067716
		STANDARD INDUSTRIAL CLASSIFICATION:	MINING, QUARRYING OF NONMETALLIC MINERALS (NO FUELS) [1400]
		IRS NUMBER:				301133956
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-03480
		FILM NUMBER:		22521997

	BUSINESS ADDRESS:	
		STREET 1:		1200 WEST CENTURY AVENUE
		CITY:			BISMARCK
		STATE:			ND
		ZIP:			58503
		BUSINESS PHONE:		701-530-1000

	MAIL ADDRESS:	
		STREET 1:		1200 WEST CENTURY AVENUE
		CITY:			BISMARCK
		STATE:			ND
		ZIP:			58503

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MONTANA DAKOTA UTILITIES CO
		DATE OF NAME CHANGE:	19850429
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>mdu-20220106.htm
<DESCRIPTION>8-K
<TEXT>
<XBRL>
<?xml version="1.0" ?><!--XBRL Document Created with Wdesk from Workiva--><!--Copyright 2022 Workiva--><!--r:e5690ceb-80d9-48d7-bfee-47619d13f071,g:dade13f3-50a5-4865-b8b9-0c48238b6621,d:0d246c5288534b79b2593e9ea665ff4b--><html xmlns:ixt="http://www.xbrl.org/inlineXBRL/transformation/2020-02-12" xmlns:ixt-sec="http://www.sec.gov/inlineXBRL/transformation/2015-08-31" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:ix="http://www.xbrl.org/2013/inlineXBRL" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:dei="http://xbrl.sec.gov/dei/2021q4" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns="http://www.w3.org/1999/xhtml" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="en-US"><head><meta http-equiv="Content-Type" content="text/html"/>


<title>mdu-20220106</title></head><body><div style="display:none"><ix:header><ix:hidden><ix:nonNumeric contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106" name="dei:EntityCentralIndexKey" id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl82NS9mcmFnOjBjNmI2ODMwYjFkYjQyZDZiNTBlOGE5MmZmODUxYWJlL3RhYmxlOjVlOWVjODBiZTlkNTQwZTg5NWM3MmE2ZDk2ODU5ZWNjL3RhYmxlcmFuZ2U6NWU5ZWM4MGJlOWQ1NDBlODk1YzcyYTZkOTY4NTllY2NfMy0xLTEtMS0xNDUzODI_80e30264-f903-49c4-9929-ce976127a415">0000067716</ix:nonNumeric><ix:nonNumeric contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106" name="dei:AmendmentFlag" id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl82NS9mcmFnOjBjNmI2ODMwYjFkYjQyZDZiNTBlOGE5MmZmODUxYWJlL3RhYmxlOjVlOWVjODBiZTlkNTQwZTg5NWM3MmE2ZDk2ODU5ZWNjL3RhYmxlcmFuZ2U6NWU5ZWM4MGJlOWQ1NDBlODk1YzcyYTZkOTY4NTllY2NfNC0xLTEtMS0xNDUzOTY_a1f397c6-82f9-475c-9723-cb2d84fce728">false</ix:nonNumeric></ix:hidden><ix:references xml:lang="en-US"><link:schemaRef xlink:type="simple" xlink:href="mdu-20220106.xsd"></link:schemaRef></ix:references><ix:resources><xbrli:context id="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0000067716</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2022-01-06</xbrli:startDate><xbrli:endDate>2022-01-06</xbrli:endDate></xbrli:period></xbrli:context></ix:resources></ix:header></div><div id="i0d246c5288534b79b2593e9ea665ff4b_38"></div><div style="min-height:40.5pt;width:100%"><div><span><br/></span></div></div><div style="-sec-extract:summary;margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr style="height:5pt"><td colspan="3" style="border-bottom:2pt solid #000000;padding:0 1pt"></td></tr></table></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:15pt;font-weight:700;line-height:120%">UNITED STATES SECURITIES AND EXCHANGE COMMISSION</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:120%">WASHINGTON, D.C. 20549</span></div><div><span><br/></span></div><div><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:14pt;font-weight:700;line-height:100%">FORM <ix:nonNumeric contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106" name="dei:DocumentType" id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RleHRyZWdpb246MDBjMmZiZGRmMTcyNDExZDhlOTliNDQ0NzU0YmRiNzBfODY_8eb55c20-c3ff-479c-be1c-ae0333b8b77b">8-K</ix:nonNumeric> </span></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:120%">CURRENT REPORT</span></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:100%">PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES </span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:100%">EXCHANGE ACT OF 1934</span></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:120%">Date of Report (Date of earliest event reported): <ix:nonNumeric contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106" name="dei:DocumentPeriodEndDate" format="ixt:date-monthname-day-year-en" id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RleHRyZWdpb246MDBjMmZiZGRmMTcyNDExZDhlOTliNDQ0NzU0YmRiNzBfMjc0ODc3OTA3NDU3Ng_28873d77-5a02-4935-b2c9-ac9e78dfb365">January 6, 2022</ix:nonNumeric>  </span></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:20pt;font-weight:700;line-height:120%"><ix:nonNumeric contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106" name="dei:EntityRegistrantName" id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RleHRyZWdpb246MDBjMmZiZGRmMTcyNDExZDhlOTliNDQ0NzU0YmRiNzBfMjQw_acc93921-58ce-4201-8300-506fb5e6d497">MDU Resources Group Inc</ix:nonNumeric> </span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:120%">(Exact name of registrant as specified in its charter)</span></div><div style="text-align:center"><span><br/></span></div><div style="margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:482.25pt"><tr><td style="width:1.0pt"></td><td style="width:157.75pt"></td><td style="width:1.0pt"></td><td style="width:1.0pt"></td><td style="width:159.25pt"></td><td style="width:1.0pt"></td><td style="width:1.0pt"></td><td style="width:159.25pt"></td><td style="width:1.0pt"></td></tr><tr style="height:12pt"><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">(State or other jurisdiction of</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">(Commission File Number)</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">(I.R.S. Employer Identification&#160;No.)</span></td></tr><tr style="height:12pt"><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">incorporation)</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr style="height:14pt"><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106" name="dei:EntityIncorporationStateCountryCode" format="ixt-sec:stateprovnameen" id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RhYmxlOjk0ZTFkNmJhZGIwNTQ1YjZhM2VkZGFlOTBhMjVlMmQwL3RhYmxlcmFuZ2U6OTRlMWQ2YmFkYjA1NDViNmEzZWRkYWU5MGEyNWUyZDBfMi0wLTEtMS0xNDUzMzE_c8413e70-e823-40c1-b6b3-ae03fa9731f0">Delaware</ix:nonNumeric></span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106" name="dei:EntityFileNumber" id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RhYmxlOjk0ZTFkNmJhZGIwNTQ1YjZhM2VkZGFlOTBhMjVlMmQwL3RhYmxlcmFuZ2U6OTRlMWQ2YmFkYjA1NDViNmEzZWRkYWU5MGEyNWUyZDBfMi0xLTEtMS0xNDUzMzg_9682f34d-da47-4a9e-a65c-b17a044715e2">1-03480</ix:nonNumeric></span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106" name="dei:EntityTaxIdentificationNumber" id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RhYmxlOjk0ZTFkNmJhZGIwNTQ1YjZhM2VkZGFlOTBhMjVlMmQwL3RhYmxlcmFuZ2U6OTRlMWQ2YmFkYjA1NDViNmEzZWRkYWU5MGEyNWUyZDBfMi0yLTEtMS0xNDUzNDA_1934f230-8185-4abb-b67d-bb004358b9ba">30-1133956</ix:nonNumeric></span></td></tr></table></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:120%"><ix:nonNumeric contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106" name="dei:EntityAddressAddressLine1" id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RleHRyZWdpb246MDBjMmZiZGRmMTcyNDExZDhlOTliNDQ0NzU0YmRiNzBfMzAz_f9407d02-3085-4c3d-82d8-fb67c443735a">1200 West Century Avenue</ix:nonNumeric> </span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:120%"><ix:nonNumeric contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106" name="dei:EntityAddressAddressLine2" id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RleHRyZWdpb246MDBjMmZiZGRmMTcyNDExZDhlOTliNDQ0NzU0YmRiNzBfMzA3_dfdab7ad-539e-416c-970a-3285ea96c422">P.O. Box 5650</ix:nonNumeric> </span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:120%"><ix:nonNumeric contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106" name="dei:EntityAddressCityOrTown" id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RleHRyZWdpb246MDBjMmZiZGRmMTcyNDExZDhlOTliNDQ0NzU0YmRiNzBfMzEx_4ff58944-e2e8-4514-8dd7-ed657f3c0cdc">Bismarck</ix:nonNumeric>, <ix:nonNumeric contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106" name="dei:EntityAddressStateOrProvince" format="ixt-sec:stateprovnameen" id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RleHRyZWdpb246MDBjMmZiZGRmMTcyNDExZDhlOTliNDQ0NzU0YmRiNzBfMzE1_854ddf9a-6fa2-4bae-b653-9c8d0379f5c0">North Dakota</ix:nonNumeric> <ix:nonNumeric contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106" name="dei:EntityAddressPostalZipCode" id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RleHRyZWdpb246MDBjMmZiZGRmMTcyNDExZDhlOTliNDQ0NzU0YmRiNzBfMzE4_070ea425-5f6b-4f4b-afcc-3145b0196a7c">58506-5650</ix:nonNumeric> </span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:120%">(Address of principal executive offices)</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:120%">(Zip Code)</span></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:120%">Registrant&#8217;s telephone number, including area code (<ix:nonNumeric contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106" name="dei:CityAreaCode" id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RleHRyZWdpb246MDBjMmZiZGRmMTcyNDExZDhlOTliNDQ0NzU0YmRiNzBfNDI3_fe7c693a-6def-48cf-b31a-ee1b668c2338">701</ix:nonNumeric>) <ix:nonNumeric contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106" name="dei:LocalPhoneNumber" id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RleHRyZWdpb246MDBjMmZiZGRmMTcyNDExZDhlOTliNDQ0NzU0YmRiNzBfNDMx_605e365c-a35c-488b-a83d-b83e0fc622a4">530-1000</ix:nonNumeric> </span></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:120%">Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:</span></div><div style="margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:482.25pt"><tr><td style="width:1.0pt"></td><td style="width:16.00pt"></td><td style="width:1.0pt"></td><td style="width:1.0pt"></td><td style="width:16.00pt"></td><td style="width:1.0pt"></td><td style="width:1.0pt"></td><td style="width:444.25pt"></td><td style="width:1.0pt"></td></tr><tr style="height:14pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106" name="dei:WrittenCommunications" format="ixt-sec:boolballotbox" id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RhYmxlOmI2MjgwMTMzODAxZjQ0YmQ4ZTgyMDJlNDkzZDk5ZWZkL3RhYmxlcmFuZ2U6YjYyODAxMzM4MDFmNDRiZDhlODIwMmU0OTNkOTllZmRfMC0xLTEtMS0xNDUzNDI_e5eefe43-58c0-4bfa-b267-8ff23e000128">&#9744;</ix:nonNumeric></span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</span></td></tr><tr style="height:14pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106" name="dei:SolicitingMaterial" format="ixt-sec:boolballotbox" id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RhYmxlOmI2MjgwMTMzODAxZjQ0YmQ4ZTgyMDJlNDkzZDk5ZWZkL3RhYmxlcmFuZ2U6YjYyODAxMzM4MDFmNDRiZDhlODIwMmU0OTNkOTllZmRfMS0xLTEtMS0xNDUzNDU_81114c48-1919-4037-8e34-18a4ba0e5010">&#9744;</ix:nonNumeric></span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</span></td></tr><tr style="height:23pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106" name="dei:PreCommencementTenderOffer" format="ixt-sec:boolballotbox" id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RhYmxlOmI2MjgwMTMzODAxZjQ0YmQ4ZTgyMDJlNDkzZDk5ZWZkL3RhYmxlcmFuZ2U6YjYyODAxMzM4MDFmNDRiZDhlODIwMmU0OTNkOTllZmRfMi0xLTEtMS0xNDUzNDc_24b55443-581d-4078-82ed-9888b34f1703">&#9744;</ix:nonNumeric></span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</span></td></tr><tr style="height:23pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106" name="dei:PreCommencementIssuerTenderOffer" format="ixt-sec:boolballotbox" id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RhYmxlOmI2MjgwMTMzODAxZjQ0YmQ4ZTgyMDJlNDkzZDk5ZWZkL3RhYmxlcmFuZ2U6YjYyODAxMzM4MDFmNDRiZDhlODIwMmU0OTNkOTllZmRfMy0xLTEtMS0xNDUzNDk_bc5148b3-1c51-4022-be93-a3fc4276fb50">&#9744;</ix:nonNumeric></span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></div></td></tr></table></div><div style="text-align:center"><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Securities registered pursuant to Section 12(b) of the Securities Exchange Act of 1934:</span></div><div style="margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:482.25pt"><tr><td style="width:1.0pt"></td><td style="width:180.25pt"></td><td style="width:1.0pt"></td><td style="width:1.0pt"></td><td style="width:97.75pt"></td><td style="width:1.0pt"></td><td style="width:1.0pt"></td><td style="width:198.25pt"></td><td style="width:1.0pt"></td></tr><tr style="height:14pt"><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">(Title of each class)</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">(Trading Symbol(s))</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">(Name of each exchange on which registered)</span></td></tr><tr style="height:14pt"><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106" name="dei:Security12bTitle" id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RhYmxlOmRmOTkwNzczMjMzZDRkZjM4NWQ5MzM2OGY4ODBmMTU1L3RhYmxlcmFuZ2U6ZGY5OTA3NzMyMzNkNGRmMzg1ZDkzMzY4Zjg4MGYxNTVfMS0wLTEtMS0xNDUzNTE_733e64c6-e86c-4a8e-96f7-939a61d46fec">Common Stock, par value $1.00 per share</ix:nonNumeric></span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106" name="dei:TradingSymbol" id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RhYmxlOmRmOTkwNzczMjMzZDRkZjM4NWQ5MzM2OGY4ODBmMTU1L3RhYmxlcmFuZ2U6ZGY5OTA3NzMyMzNkNGRmMzg1ZDkzMzY4Zjg4MGYxNTVfMS0xLTEtMS0xNDUzNTQ_6f5401b1-b46b-4c31-b76d-cc12aa393a5a">MDU</ix:nonNumeric></span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106" name="dei:SecurityExchangeName" format="ixt-sec:exchnameen" id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RhYmxlOmRmOTkwNzczMjMzZDRkZjM4NWQ5MzM2OGY4ODBmMTU1L3RhYmxlcmFuZ2U6ZGY5OTA3NzMyMzNkNGRmMzg1ZDkzMzY4Zjg4MGYxNTVfMS0yLTEtMS0xNDUzNTY_6027c307-a7f7-4159-b383-2fa2286970d7">New York Stock Exchange</ix:nonNumeric></span></td></tr></table></div><div style="text-align:center"><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 or Rule 12b-2 of the Securities Exchange Act of 1934.</span></div><div style="margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Emerging growth company </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"><ix:nonNumeric contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106" name="dei:EntityEmergingGrowthCompany" format="ixt-sec:boolballotbox" id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RleHRyZWdpb246MDBjMmZiZGRmMTcyNDExZDhlOTliNDQ0NzU0YmRiNzBfOTA5_94ca534b-45d4-4678-bc05-cf72120971e7">&#9744;</ix:nonNumeric> </span></div><div style="margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">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. </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#9744; </span></div><div style="margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr style="height:5pt"><td colspan="3" style="border-bottom:2pt solid #000000;padding:0 1pt"></td></tr></table></div><div><span><br/></span></div><div style="height:40.5pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><span><br/></span></div></div></div><div id="i0d246c5288534b79b2593e9ea665ff4b_51"></div><hr style="page-break-after:always"/><div style="min-height:72pt;width:100%"><div><span><br/></span></div></div><div style="margin-top:6pt"><span><br/></span></div><div style="-sec-extract:summary;margin-top:6pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:700;line-height:120%">Item 1.04 &#160;&#160;&#160;&#160;Mine Safety - Reporting of Shutdowns and Patterns of Violations.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:132%">On January 6, 2022, Knife River Corporation - Northwest, an indirect subsidiary of MDU Resources Group, Inc., received an imminent danger order issued by the Mine Safety and Health Administration under section 107(a) of the Federal Mine Safety and Health Act of 1977.  The imminent danger order was issued at the Farmington Pit in Washington County, Oregon, upon observation that a contracted miner was standing on top of a conveyor belt without adequate fall protection.  The contracted miner was immediately ordered down from the conveyor belt, thereby terminating the order.</span></div><div><span><br/></span></div><div><span><br/></span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:700;line-height:120%">Item 9.01.  Financial Statements and Exhibits.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:120%">(d)&#160;&#160;&#160;&#160;Exhibits. The following exhibits are being furnished as part of this report.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:120%;text-decoration:underline">Exhibit Number</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:120%">&#160;&#160;&#160;&#160;</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:120%;text-decoration:underline">Description</span></div><div><span><br/></span></div><div style="padding-left:108pt;text-indent:-108pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:120%">104&#160;&#160;&#160;&#160;Cover Page Interactive Data File (embedded within the Inline XBRL document)</span></div><div><span><br/></span></div><div style="height:72pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><span><br/></span></div></div></div><hr style="page-break-after:always"/><div style="min-height:72pt;width:100%"><div><span><br/></span></div></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11.5pt;font-weight:700;line-height:120%">SIGNATURE</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11.5pt;font-weight:400;line-height:120%"> </span></div><div style="text-align:center"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11.5pt;font-weight:400;line-height:135%">Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11.5pt;font-weight:400;line-height:120%">Date:  January 10, 2022</span></div><div><span><br/></span></div><div style="margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:451.50pt"><tr><td style="width:1.0pt"></td><td style="width:235.75pt"></td><td style="width:1.0pt"></td><td style="width:1.0pt"></td><td style="width:22.75pt"></td><td style="width:1.0pt"></td><td style="width:1.0pt"></td><td style="width:187.00pt"></td><td style="width:1.0pt"></td></tr><tr style="height:15pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="6" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11.5pt;font-weight:700;line-height:100%">MDU Resources Group, Inc.</span></td></tr><tr style="height:14pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="6" style="padding:0 1pt"></td></tr><tr style="height:14pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="6" style="padding:0 1pt"></td></tr><tr style="height:15pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11.5pt;font-weight:400;line-height:100%">By:</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11.5pt;font-weight:400;line-height:100%">/s/ Karl A. Liepitz</span></td></tr><tr style="height:6pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td></tr><tr style="height:15pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11.5pt;font-weight:400;line-height:100%">Karl A. Liepitz</span></td></tr><tr style="height:15pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11.5pt;font-weight:400;line-height:100%">Vice President, General Counsel</span></td></tr><tr style="height:15pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11.5pt;font-weight:400;line-height:100%">&#160;&#160;&#160;&#160;and Secretary</span></td></tr></table></div><div><span><br/></span></div><div style="height:72pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><span><br/></span></div></div></div></body></html>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.SCH
<SEQUENCE>2
<FILENAME>mdu-20220106.xsd
<DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2022 Workiva-->
<!--r:e5690ceb-80d9-48d7-bfee-47619d13f071,g:dade13f3-50a5-4865-b8b9-0c48238b6621-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:mdu="http://www.mdu.com/20220106" attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.mdu.com/20220106">
  <xs:import namespace="http://www.w3.org/1999/xlink" schemaLocation="http://www.xbrl.org/2003/xlink-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/dei/2021q4" schemaLocation="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd"/>
  <xs:annotation>
    <xs:appinfo>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="mdu-20220106_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="mdu-20220106_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="mdu-20220106_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:type="simple"/>
      <link:roleType id="Cover" roleURI="http://www.mdu.com/role/Cover">
        <link:definition>0001001 - Document - Cover</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xs:appinfo>
  </xs:annotation>
</xs:schema>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.DEF
<SEQUENCE>3
<FILENAME>mdu-20220106_def.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2022 Workiva-->
<!--r:e5690ceb-80d9-48d7-bfee-47619d13f071,g:dade13f3-50a5-4865-b8b9-0c48238b6621-->
<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:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
  <link:roleRef roleURI="http://www.mdu.com/role/Cover" xlink:type="simple" xlink:href="mdu-20220106.xsd#Cover"/>
  <link:definitionLink xlink:role="http://www.mdu.com/role/Cover" xlink:type="extended" id="i97c40ccd6f2c47f18a99015bfc6001e0_Cover">
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_2a475140-2b5a-4106-ba86-398f47e2502f" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_DocumentType"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_DocumentType_2a475140-2b5a-4106-ba86-398f47e2502f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_de4ee798-0211-4101-9276-86b03185bd34" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_DocumentPeriodEndDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_DocumentPeriodEndDate_de4ee798-0211-4101-9276-86b03185bd34" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_7766794a-17ea-4f2c-b093-3161b0f9fb8b" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityRegistrantName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_EntityRegistrantName_7766794a-17ea-4f2c-b093-3161b0f9fb8b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_5c135f62-9a68-4349-892e-571f590d0eb7" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_EntityIncorporationStateCountryCode_5c135f62-9a68-4349-892e-571f590d0eb7" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_1fb2a787-13b9-43e4-a675-3cbeca8edac3" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityFileNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_EntityFileNumber_1fb2a787-13b9-43e4-a675-3cbeca8edac3" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_d8d03e3f-34ba-422e-9b55-03cd27ff98e6" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_EntityTaxIdentificationNumber_d8d03e3f-34ba-422e-9b55-03cd27ff98e6" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_80db490b-68d1-4c73-9751-f096d1371017" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityAddressAddressLine1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_EntityAddressAddressLine1_80db490b-68d1-4c73-9751-f096d1371017" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine2_3409de83-7401-449c-bf80-be9bae83577f" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityAddressAddressLine2"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_EntityAddressAddressLine2_3409de83-7401-449c-bf80-be9bae83577f" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_53bce4b5-8c78-43e2-8f5f-ea80ed53aea9" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityAddressCityOrTown"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_EntityAddressCityOrTown_53bce4b5-8c78-43e2-8f5f-ea80ed53aea9" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_6d999b90-a0ea-4194-b6c6-2b2627417f1c" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityAddressStateOrProvince"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_EntityAddressStateOrProvince_6d999b90-a0ea-4194-b6c6-2b2627417f1c" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_30b52950-462c-4e59-80b7-ad4e045cffb1" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityAddressPostalZipCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_EntityAddressPostalZipCode_30b52950-462c-4e59-80b7-ad4e045cffb1" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_622c3a2b-3b90-4b6c-a169-8f32e079df21" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_CityAreaCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_CityAreaCode_622c3a2b-3b90-4b6c-a169-8f32e079df21" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_c4e61d8d-c6f7-45c3-9024-9654942b953b" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_LocalPhoneNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_LocalPhoneNumber_c4e61d8d-c6f7-45c3-9024-9654942b953b" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_93c9e12d-42f3-4f1e-9ccd-b0991a4eb366" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_WrittenCommunications"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_WrittenCommunications_93c9e12d-42f3-4f1e-9ccd-b0991a4eb366" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_68689c1e-14f7-487a-be88-1dbf057179c4" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_SolicitingMaterial"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_SolicitingMaterial_68689c1e-14f7-487a-be88-1dbf057179c4" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_791ea8f3-1f4f-4b81-85bc-cdee266b8142" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_PreCommencementTenderOffer"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_PreCommencementTenderOffer_791ea8f3-1f4f-4b81-85bc-cdee266b8142" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_50ecdd48-2030-4b8a-bc00-1d8b0932d883" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_50ecdd48-2030-4b8a-bc00-1d8b0932d883" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_dfb4559b-0e8c-41c4-ae48-09ca2cf0ef64" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_Security12bTitle"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_Security12bTitle_dfb4559b-0e8c-41c4-ae48-09ca2cf0ef64" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_5f2ee473-f0be-4e17-b3c2-16006db0fdd9" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_TradingSymbol"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_TradingSymbol_5f2ee473-f0be-4e17-b3c2-16006db0fdd9" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_ba2006ec-f0a1-415c-b16c-c91cac786a94" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_SecurityExchangeName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_SecurityExchangeName_ba2006ec-f0a1-415c-b16c-c91cac786a94" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_8d4eb1e0-992a-47ea-bf23-1bc0192ec8a3" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_EntityEmergingGrowthCompany_8d4eb1e0-992a-47ea-bf23-1bc0192ec8a3" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_ae8dcfed-eb22-4e6e-9597-8f54e3e54ffe" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityCentralIndexKey"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_EntityCentralIndexKey_ae8dcfed-eb22-4e6e-9597-8f54e3e54ffe" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_a7231171-c1ce-4605-9119-4d669c92880f" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_AmendmentFlag"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_AmendmentFlag_a7231171-c1ce-4605-9119-4d669c92880f" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntitiesTable_18de97dc-46c3-4672-a2aa-9d606f97cee0" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntitiesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_EntitiesTable_18de97dc-46c3-4672-a2aa-9d606f97cee0" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_f19d9117-b111-496a-9bf4-d9e436c7b021" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_EntitiesTable_18de97dc-46c3-4672-a2aa-9d606f97cee0" xlink:to="loc_dei_LegalEntityAxis_f19d9117-b111-496a-9bf4-d9e436c7b021" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_f19d9117-b111-496a-9bf4-d9e436c7b021_default" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_f19d9117-b111-496a-9bf4-d9e436c7b021" xlink:to="loc_dei_EntityDomain_f19d9117-b111-496a-9bf4-d9e436c7b021_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_21cb57a2-60a5-41ce-a936-68aaa8e11782" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_f19d9117-b111-496a-9bf4-d9e436c7b021" xlink:to="loc_dei_EntityDomain_21cb57a2-60a5-41ce-a936-68aaa8e11782" xlink:type="arc" order="1"/>
  </link:definitionLink>
</link:linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.LAB
<SEQUENCE>4
<FILENAME>mdu-20220106_lab.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2022 Workiva-->
<!--r:e5690ceb-80d9-48d7-bfee-47619d13f071,g:dade13f3-50a5-4865-b8b9-0c48238b6621-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodStartLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/netLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd#netLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedNetLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedNetLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTerseLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodEndLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel"/>
  <link:labelLink xlink:role="http://www.xbrl.org/2003/role/link" xlink:type="extended">
    <link:label id="lab_dei_PreCommencementIssuerTenderOffer_9a6ba916-0210-4749-ade0-9d954d2b3391_terseLabel_en-US" xlink:label="lab_dei_PreCommencementIssuerTenderOffer" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Pre-commencement Issuer Tender Offer</link:label>
    <link:label id="lab_dei_PreCommencementIssuerTenderOffer_label_en-US" xlink:label="lab_dei_PreCommencementIssuerTenderOffer" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Pre-commencement Issuer Tender Offer</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_PreCommencementIssuerTenderOffer" xlink:to="lab_dei_PreCommencementIssuerTenderOffer" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressPostalZipCode_db772acb-436e-41d4-bdf8-9290503dc386_terseLabel_en-US" xlink:label="lab_dei_EntityAddressPostalZipCode" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, Postal Zip Code</link:label>
    <link:label id="lab_dei_EntityAddressPostalZipCode_label_en-US" xlink:label="lab_dei_EntityAddressPostalZipCode" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, Postal Zip Code</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityAddressPostalZipCode"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressPostalZipCode" xlink:to="lab_dei_EntityAddressPostalZipCode" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityInformationLineItems_a3b182e3-8345-430b-84b1-baa02f51d01b_terseLabel_en-US" xlink:label="lab_dei_EntityInformationLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Information [Line Items]</link:label>
    <link:label id="lab_dei_EntityInformationLineItems_label_en-US" xlink:label="lab_dei_EntityInformationLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Information [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityInformationLineItems" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityInformationLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityInformationLineItems" xlink:to="lab_dei_EntityInformationLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityDomain_e3e9dc6d-9fd9-41ba-8fb4-8abe8191f16d_terseLabel_en-US" xlink:label="lab_dei_EntityDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity [Domain]</link:label>
    <link:label id="lab_dei_EntityDomain_label_en-US" xlink:label="lab_dei_EntityDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityDomain" xlink:to="lab_dei_EntityDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentPeriodEndDate_c8ab9bb4-764f-42a8-8cec-005fb55c2a94_terseLabel_en-US" xlink:label="lab_dei_DocumentPeriodEndDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Period End Date</link:label>
    <link:label id="lab_dei_DocumentPeriodEndDate_label_en-US" xlink:label="lab_dei_DocumentPeriodEndDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Period End Date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_DocumentPeriodEndDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentPeriodEndDate" xlink:to="lab_dei_DocumentPeriodEndDate" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityCentralIndexKey_1f83b560-cf73-480f-9f55-e4091c89ab0b_terseLabel_en-US" xlink:label="lab_dei_EntityCentralIndexKey" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Central Index Key</link:label>
    <link:label id="lab_dei_EntityCentralIndexKey_label_en-US" xlink:label="lab_dei_EntityCentralIndexKey" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Central Index Key</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityCentralIndexKey"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCentralIndexKey" xlink:to="lab_dei_EntityCentralIndexKey" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityEmergingGrowthCompany_3d4809d5-a6d5-4aec-a00a-5aaf6a33ccaa_terseLabel_en-US" xlink:label="lab_dei_EntityEmergingGrowthCompany" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Emerging Growth Company</link:label>
    <link:label id="lab_dei_EntityEmergingGrowthCompany_label_en-US" xlink:label="lab_dei_EntityEmergingGrowthCompany" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Emerging Growth Company</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityEmergingGrowthCompany" xlink:to="lab_dei_EntityEmergingGrowthCompany" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_SecurityExchangeName_58e5c461-d18c-4b7c-ad2d-0df16b5686a6_terseLabel_en-US" xlink:label="lab_dei_SecurityExchangeName" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Security Exchange Name</link:label>
    <link:label id="lab_dei_SecurityExchangeName_label_en-US" xlink:label="lab_dei_SecurityExchangeName" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Security Exchange Name</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_SecurityExchangeName"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_SecurityExchangeName" xlink:to="lab_dei_SecurityExchangeName" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_Security12bTitle_b058e838-dfc2-4901-b54e-64ab6da47eca_terseLabel_en-US" xlink:label="lab_dei_Security12bTitle" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Title of 12(b) Security</link:label>
    <link:label id="lab_dei_Security12bTitle_label_en-US" xlink:label="lab_dei_Security12bTitle" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Title of 12(b) Security</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_Security12bTitle"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_Security12bTitle" xlink:to="lab_dei_Security12bTitle" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityIncorporationStateCountryCode_7e2e3043-529f-45db-9e92-14c36b067b91_terseLabel_en-US" xlink:label="lab_dei_EntityIncorporationStateCountryCode" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Incorporation, State or Country Code</link:label>
    <link:label id="lab_dei_EntityIncorporationStateCountryCode_label_en-US" xlink:label="lab_dei_EntityIncorporationStateCountryCode" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Incorporation, State or Country Code</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityIncorporationStateCountryCode" xlink:to="lab_dei_EntityIncorporationStateCountryCode" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressAddressLine1_9aa8ab6e-0abb-42de-87e5-559ddb8f4a45_terseLabel_en-US" xlink:label="lab_dei_EntityAddressAddressLine1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, Address Line One</link:label>
    <link:label id="lab_dei_EntityAddressAddressLine1_label_en-US" xlink:label="lab_dei_EntityAddressAddressLine1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, Address Line One</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityAddressAddressLine1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressAddressLine1" xlink:to="lab_dei_EntityAddressAddressLine1" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressAddressLine2_43881cc6-94c6-4780-a9e4-0beb4227212e_terseLabel_en-US" xlink:label="lab_dei_EntityAddressAddressLine2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, Address Line Two</link:label>
    <link:label id="lab_dei_EntityAddressAddressLine2_label_en-US" xlink:label="lab_dei_EntityAddressAddressLine2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, Address Line Two</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine2" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityAddressAddressLine2"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressAddressLine2" xlink:to="lab_dei_EntityAddressAddressLine2" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityRegistrantName_2798690d-5cf4-4239-bc05-f440a3b26c61_terseLabel_en-US" xlink:label="lab_dei_EntityRegistrantName" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Registrant Name</link:label>
    <link:label id="lab_dei_EntityRegistrantName_label_en-US" xlink:label="lab_dei_EntityRegistrantName" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Registrant Name</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityRegistrantName"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityRegistrantName" xlink:to="lab_dei_EntityRegistrantName" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntitiesTable_892452ef-a2c5-42f8-ad8c-3e2fde4ae422_terseLabel_en-US" xlink:label="lab_dei_EntitiesTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entities [Table]</link:label>
    <link:label id="lab_dei_EntitiesTable_label_en-US" xlink:label="lab_dei_EntitiesTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entities [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntitiesTable" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntitiesTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntitiesTable" xlink:to="lab_dei_EntitiesTable" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_WrittenCommunications_697a3141-0b33-4f32-9602-09766702ff54_terseLabel_en-US" xlink:label="lab_dei_WrittenCommunications" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Written Communications</link:label>
    <link:label id="lab_dei_WrittenCommunications_label_en-US" xlink:label="lab_dei_WrittenCommunications" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Written Communications</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_WrittenCommunications"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_WrittenCommunications" xlink:to="lab_dei_WrittenCommunications" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_LocalPhoneNumber_ae8adc0e-2374-4c17-b6de-9ba31844adef_terseLabel_en-US" xlink:label="lab_dei_LocalPhoneNumber" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Local Phone Number</link:label>
    <link:label id="lab_dei_LocalPhoneNumber_label_en-US" xlink:label="lab_dei_LocalPhoneNumber" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Local Phone Number</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_LocalPhoneNumber"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_LocalPhoneNumber" xlink:to="lab_dei_LocalPhoneNumber" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_SolicitingMaterial_509b2054-293b-4663-89bd-ddf622d29c35_terseLabel_en-US" xlink:label="lab_dei_SolicitingMaterial" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Soliciting Material</link:label>
    <link:label id="lab_dei_SolicitingMaterial_label_en-US" xlink:label="lab_dei_SolicitingMaterial" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Soliciting Material</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_SolicitingMaterial"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_SolicitingMaterial" xlink:to="lab_dei_SolicitingMaterial" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressStateOrProvince_fad0a867-9388-428f-aca8-30d3e6f5ecd2_terseLabel_en-US" xlink:label="lab_dei_EntityAddressStateOrProvince" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, State or Province</link:label>
    <link:label id="lab_dei_EntityAddressStateOrProvince_label_en-US" xlink:label="lab_dei_EntityAddressStateOrProvince" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, State or Province</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityAddressStateOrProvince"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressStateOrProvince" xlink:to="lab_dei_EntityAddressStateOrProvince" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_CityAreaCode_974c7926-c688-4ccd-89ce-6b0f4a752224_terseLabel_en-US" xlink:label="lab_dei_CityAreaCode" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">City Area Code</link:label>
    <link:label id="lab_dei_CityAreaCode_label_en-US" xlink:label="lab_dei_CityAreaCode" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">City Area Code</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_CityAreaCode"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CityAreaCode" xlink:to="lab_dei_CityAreaCode" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentType_5d0e8e0d-0b89-4a7f-b76e-813826635863_terseLabel_en-US" xlink:label="lab_dei_DocumentType" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Type</link:label>
    <link:label id="lab_dei_DocumentType_label_en-US" xlink:label="lab_dei_DocumentType" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Type</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_DocumentType"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentType" xlink:to="lab_dei_DocumentType" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_LegalEntityAxis_799ed135-c4f9-46da-a554-9a9d5125c9ee_terseLabel_en-US" xlink:label="lab_dei_LegalEntityAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Legal Entity [Axis]</link:label>
    <link:label id="lab_dei_LegalEntityAxis_label_en-US" xlink:label="lab_dei_LegalEntityAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Legal Entity [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_LegalEntityAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_LegalEntityAxis" xlink:to="lab_dei_LegalEntityAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_CoverAbstract_label_en-US" xlink:label="lab_dei_CoverAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cover [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CoverAbstract" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_CoverAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CoverAbstract" xlink:to="lab_dei_CoverAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressCityOrTown_f787a8d1-89f4-47c6-9c15-d6080a806b94_terseLabel_en-US" xlink:label="lab_dei_EntityAddressCityOrTown" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, City or Town</link:label>
    <link:label id="lab_dei_EntityAddressCityOrTown_label_en-US" xlink:label="lab_dei_EntityAddressCityOrTown" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, City or Town</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityAddressCityOrTown"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressCityOrTown" xlink:to="lab_dei_EntityAddressCityOrTown" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_PreCommencementTenderOffer_a744fca2-9506-4187-a5a3-070fa1b2153f_terseLabel_en-US" xlink:label="lab_dei_PreCommencementTenderOffer" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Pre-commencement Tender Offer</link:label>
    <link:label id="lab_dei_PreCommencementTenderOffer_label_en-US" xlink:label="lab_dei_PreCommencementTenderOffer" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Pre-commencement Tender Offer</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_PreCommencementTenderOffer"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_PreCommencementTenderOffer" xlink:to="lab_dei_PreCommencementTenderOffer" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityFileNumber_2d0080e4-e20a-4116-b318-5405de01bab7_terseLabel_en-US" xlink:label="lab_dei_EntityFileNumber" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity File Number</link:label>
    <link:label id="lab_dei_EntityFileNumber_label_en-US" xlink:label="lab_dei_EntityFileNumber" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity File Number</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityFileNumber"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityFileNumber" xlink:to="lab_dei_EntityFileNumber" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_AmendmentFlag_5bda48b9-2edd-4f7e-8ee1-22f6af8b6fd8_terseLabel_en-US" xlink:label="lab_dei_AmendmentFlag" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Amendment Flag</link:label>
    <link:label id="lab_dei_AmendmentFlag_label_en-US" xlink:label="lab_dei_AmendmentFlag" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Amendment Flag</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_AmendmentFlag"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_AmendmentFlag" xlink:to="lab_dei_AmendmentFlag" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_TradingSymbol_32eed0e3-3036-47c0-9c72-f8e194cff753_terseLabel_en-US" xlink:label="lab_dei_TradingSymbol" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Trading Symbol</link:label>
    <link:label id="lab_dei_TradingSymbol_label_en-US" xlink:label="lab_dei_TradingSymbol" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Trading Symbol</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_TradingSymbol"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_TradingSymbol" xlink:to="lab_dei_TradingSymbol" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityTaxIdentificationNumber_d726eec1-06d1-48d6-b96e-6391173063c5_terseLabel_en-US" xlink:label="lab_dei_EntityTaxIdentificationNumber" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Tax Identification Number</link:label>
    <link:label id="lab_dei_EntityTaxIdentificationNumber_label_en-US" xlink:label="lab_dei_EntityTaxIdentificationNumber" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Tax Identification Number</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityTaxIdentificationNumber" xlink:to="lab_dei_EntityTaxIdentificationNumber" xlink:type="arc" order="1"/>
  </link:labelLink>
</link:linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>5
<FILENAME>mdu-20220106_pre.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2022 Workiva-->
<!--r:e5690ceb-80d9-48d7-bfee-47619d13f071,g:dade13f3-50a5-4865-b8b9-0c48238b6621-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.mdu.com/role/Cover" xlink:type="simple" xlink:href="mdu-20220106.xsd#Cover"/>
  <link:presentationLink xlink:role="http://www.mdu.com/role/Cover" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_CoverAbstract_0c93668e-8fb8-4936-bf0b-73aa49b05bdf" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_CoverAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntitiesTable_18de97dc-46c3-4672-a2aa-9d606f97cee0" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntitiesTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_0c93668e-8fb8-4936-bf0b-73aa49b05bdf" xlink:to="loc_dei_EntitiesTable_18de97dc-46c3-4672-a2aa-9d606f97cee0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_f19d9117-b111-496a-9bf4-d9e436c7b021" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_LegalEntityAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntitiesTable_18de97dc-46c3-4672-a2aa-9d606f97cee0" xlink:to="loc_dei_LegalEntityAxis_f19d9117-b111-496a-9bf4-d9e436c7b021" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_21cb57a2-60a5-41ce-a936-68aaa8e11782" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_LegalEntityAxis_f19d9117-b111-496a-9bf4-d9e436c7b021" xlink:to="loc_dei_EntityDomain_21cb57a2-60a5-41ce-a936-68aaa8e11782" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityInformationLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntitiesTable_18de97dc-46c3-4672-a2aa-9d606f97cee0" xlink:to="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_2a475140-2b5a-4106-ba86-398f47e2502f" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_DocumentType"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_DocumentType_2a475140-2b5a-4106-ba86-398f47e2502f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_de4ee798-0211-4101-9276-86b03185bd34" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_DocumentPeriodEndDate"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_DocumentPeriodEndDate_de4ee798-0211-4101-9276-86b03185bd34" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_7766794a-17ea-4f2c-b093-3161b0f9fb8b" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityRegistrantName"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_EntityRegistrantName_7766794a-17ea-4f2c-b093-3161b0f9fb8b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_5c135f62-9a68-4349-892e-571f590d0eb7" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_EntityIncorporationStateCountryCode_5c135f62-9a68-4349-892e-571f590d0eb7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_1fb2a787-13b9-43e4-a675-3cbeca8edac3" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityFileNumber"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_EntityFileNumber_1fb2a787-13b9-43e4-a675-3cbeca8edac3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_d8d03e3f-34ba-422e-9b55-03cd27ff98e6" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_EntityTaxIdentificationNumber_d8d03e3f-34ba-422e-9b55-03cd27ff98e6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_80db490b-68d1-4c73-9751-f096d1371017" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityAddressAddressLine1"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_EntityAddressAddressLine1_80db490b-68d1-4c73-9751-f096d1371017" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine2_3409de83-7401-449c-bf80-be9bae83577f" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityAddressAddressLine2"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_EntityAddressAddressLine2_3409de83-7401-449c-bf80-be9bae83577f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_53bce4b5-8c78-43e2-8f5f-ea80ed53aea9" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityAddressCityOrTown"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_EntityAddressCityOrTown_53bce4b5-8c78-43e2-8f5f-ea80ed53aea9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_6d999b90-a0ea-4194-b6c6-2b2627417f1c" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityAddressStateOrProvince"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_EntityAddressStateOrProvince_6d999b90-a0ea-4194-b6c6-2b2627417f1c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_30b52950-462c-4e59-80b7-ad4e045cffb1" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityAddressPostalZipCode"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_EntityAddressPostalZipCode_30b52950-462c-4e59-80b7-ad4e045cffb1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_622c3a2b-3b90-4b6c-a169-8f32e079df21" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_CityAreaCode"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_CityAreaCode_622c3a2b-3b90-4b6c-a169-8f32e079df21" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_c4e61d8d-c6f7-45c3-9024-9654942b953b" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_LocalPhoneNumber"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_LocalPhoneNumber_c4e61d8d-c6f7-45c3-9024-9654942b953b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_93c9e12d-42f3-4f1e-9ccd-b0991a4eb366" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_WrittenCommunications"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_WrittenCommunications_93c9e12d-42f3-4f1e-9ccd-b0991a4eb366" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_68689c1e-14f7-487a-be88-1dbf057179c4" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_SolicitingMaterial"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_SolicitingMaterial_68689c1e-14f7-487a-be88-1dbf057179c4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_791ea8f3-1f4f-4b81-85bc-cdee266b8142" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_PreCommencementTenderOffer"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_PreCommencementTenderOffer_791ea8f3-1f4f-4b81-85bc-cdee266b8142" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_50ecdd48-2030-4b8a-bc00-1d8b0932d883" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_50ecdd48-2030-4b8a-bc00-1d8b0932d883" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_dfb4559b-0e8c-41c4-ae48-09ca2cf0ef64" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_Security12bTitle"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_Security12bTitle_dfb4559b-0e8c-41c4-ae48-09ca2cf0ef64" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_5f2ee473-f0be-4e17-b3c2-16006db0fdd9" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_TradingSymbol"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_TradingSymbol_5f2ee473-f0be-4e17-b3c2-16006db0fdd9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_ba2006ec-f0a1-415c-b16c-c91cac786a94" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_SecurityExchangeName"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_SecurityExchangeName_ba2006ec-f0a1-415c-b16c-c91cac786a94" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_8d4eb1e0-992a-47ea-bf23-1bc0192ec8a3" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_EntityEmergingGrowthCompany_8d4eb1e0-992a-47ea-bf23-1bc0192ec8a3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_ae8dcfed-eb22-4e6e-9597-8f54e3e54ffe" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityCentralIndexKey"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_EntityCentralIndexKey_ae8dcfed-eb22-4e6e-9597-8f54e3e54ffe" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_a7231171-c1ce-4605-9119-4d669c92880f" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_AmendmentFlag"/>
    <link:presentationArc order="23" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityInformationLineItems_e7a6aab3-80a3-4347-94b8-a353723fc880" xlink:to="loc_dei_AmendmentFlag_a7231171-c1ce-4605-9119-4d669c92880f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
</link:linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>6
<FILENAME>R1.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.4</span><table class="report" border="0" cellspacing="2" id="idm140025303460040">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Cover<br></strong></div></th>
<th class="th"><div>Jan. 06, 2022</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityInformationLineItems', window );"><strong>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_DocumentType', window );">Document Type</a></td>
<td class="text">8-K<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentPeriodEndDate', window );">Document Period End Date</a></td>
<td class="text">Jan.  06,  2022<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">MDU Resources Group Inc<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityIncorporationStateCountryCode', window );">Entity Incorporation, State or Country Code</a></td>
<td class="text">DE<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityFileNumber', window );">Entity File Number</a></td>
<td class="text">1-03480<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">30-1133956<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">1200 West Century Avenue<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressAddressLine2', window );">Entity Address, Address Line Two</a></td>
<td class="text">P.O. Box 5650<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">Bismarck<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">ND<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">58506-5650<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">701<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">530-1000<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_WrittenCommunications', window );">Written Communications</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_SolicitingMaterial', window );">Soliciting Material</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_PreCommencementTenderOffer', window );">Pre-commencement Tender Offer</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_PreCommencementIssuerTenderOffer', window );">Pre-commencement Issuer Tender Offer</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_Security12bTitle', window );">Title of 12(b) Security</a></td>
<td class="text">Common Stock, par value $1.00 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">MDU<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">NYSE<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityEmergingGrowthCompany', window );">Entity Emerging Growth Company</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityCentralIndexKey', window );">Entity Central Index Key</a></td>
<td class="text">0000067716<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_AmendmentFlag', window );">Amendment Flag</a></td>
<td class="text">false<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_AmendmentFlag">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_AmendmentFlag</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_CityAreaCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Area code of city</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_CityAreaCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_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>For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period.  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 Exchange Act<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 Exchange Act<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_EntityInformationLineItems">
<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>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</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_EntityInformationLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_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 Exchange Act<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 Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityTaxIdentificationNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:employerIdItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_LocalPhoneNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Local phone number for entity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_LocalPhoneNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_PreCommencementIssuerTenderOffer">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 13e<br> -Subsection 4c<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_PreCommencementIssuerTenderOffer</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_PreCommencementTenderOffer">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 14d<br> -Subsection 2b<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_PreCommencementTenderOffer</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_Security12bTitle">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Title of a 12(b) registered security.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_Security12bTitle</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:securityTitleItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_SecurityExchangeName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Name of the Exchange on which a security is registered.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection d1-1<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_SecurityExchangeName</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:edgarExchangeCodeItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_SolicitingMaterial">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Section 14a<br> -Number 240<br> -Subsection 12<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_SolicitingMaterial</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_TradingSymbol">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Trading symbol of an instrument as listed on an exchange.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_TradingSymbol</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:tradingSymbolItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_WrittenCommunications">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Securities Act<br> -Number 230<br> -Section 425<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_WrittenCommunications</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>7
<FILENAME>mdu-20220106_htm.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<XML>
<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xml:lang="en-US"
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2021q4"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="mdu-20220106.xsd" xlink:type="simple"/>
    <context id="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000067716</identifier>
        </entity>
        <period>
            <startDate>2022-01-06</startDate>
            <endDate>2022-01-06</endDate>
        </period>
    </context>
    <dei:EntityCentralIndexKey
      contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106"
      id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl82NS9mcmFnOjBjNmI2ODMwYjFkYjQyZDZiNTBlOGE5MmZmODUxYWJlL3RhYmxlOjVlOWVjODBiZTlkNTQwZTg5NWM3MmE2ZDk2ODU5ZWNjL3RhYmxlcmFuZ2U6NWU5ZWM4MGJlOWQ1NDBlODk1YzcyYTZkOTY4NTllY2NfMy0xLTEtMS0xNDUzODI_80e30264-f903-49c4-9929-ce976127a415">0000067716</dei:EntityCentralIndexKey>
    <dei:AmendmentFlag
      contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106"
      id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl82NS9mcmFnOjBjNmI2ODMwYjFkYjQyZDZiNTBlOGE5MmZmODUxYWJlL3RhYmxlOjVlOWVjODBiZTlkNTQwZTg5NWM3MmE2ZDk2ODU5ZWNjL3RhYmxlcmFuZ2U6NWU5ZWM4MGJlOWQ1NDBlODk1YzcyYTZkOTY4NTllY2NfNC0xLTEtMS0xNDUzOTY_a1f397c6-82f9-475c-9723-cb2d84fce728">false</dei:AmendmentFlag>
    <dei:DocumentType
      contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106"
      id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RleHRyZWdpb246MDBjMmZiZGRmMTcyNDExZDhlOTliNDQ0NzU0YmRiNzBfODY_8eb55c20-c3ff-479c-be1c-ae0333b8b77b">8-K</dei:DocumentType>
    <dei:DocumentPeriodEndDate
      contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106"
      id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RleHRyZWdpb246MDBjMmZiZGRmMTcyNDExZDhlOTliNDQ0NzU0YmRiNzBfMjc0ODc3OTA3NDU3Ng_28873d77-5a02-4935-b2c9-ac9e78dfb365">2022-01-06</dei:DocumentPeriodEndDate>
    <dei:EntityRegistrantName
      contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106"
      id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RleHRyZWdpb246MDBjMmZiZGRmMTcyNDExZDhlOTliNDQ0NzU0YmRiNzBfMjQw_acc93921-58ce-4201-8300-506fb5e6d497">MDU Resources Group Inc</dei:EntityRegistrantName>
    <dei:EntityIncorporationStateCountryCode
      contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106"
      id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RhYmxlOjk0ZTFkNmJhZGIwNTQ1YjZhM2VkZGFlOTBhMjVlMmQwL3RhYmxlcmFuZ2U6OTRlMWQ2YmFkYjA1NDViNmEzZWRkYWU5MGEyNWUyZDBfMi0wLTEtMS0xNDUzMzE_c8413e70-e823-40c1-b6b3-ae03fa9731f0">DE</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber
      contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106"
      id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RhYmxlOjk0ZTFkNmJhZGIwNTQ1YjZhM2VkZGFlOTBhMjVlMmQwL3RhYmxlcmFuZ2U6OTRlMWQ2YmFkYjA1NDViNmEzZWRkYWU5MGEyNWUyZDBfMi0xLTEtMS0xNDUzMzg_9682f34d-da47-4a9e-a65c-b17a044715e2">1-03480</dei:EntityFileNumber>
    <dei:EntityTaxIdentificationNumber
      contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106"
      id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RhYmxlOjk0ZTFkNmJhZGIwNTQ1YjZhM2VkZGFlOTBhMjVlMmQwL3RhYmxlcmFuZ2U6OTRlMWQ2YmFkYjA1NDViNmEzZWRkYWU5MGEyNWUyZDBfMi0yLTEtMS0xNDUzNDA_1934f230-8185-4abb-b67d-bb004358b9ba">30-1133956</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressAddressLine1
      contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106"
      id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RleHRyZWdpb246MDBjMmZiZGRmMTcyNDExZDhlOTliNDQ0NzU0YmRiNzBfMzAz_f9407d02-3085-4c3d-82d8-fb67c443735a">1200 West Century Avenue</dei:EntityAddressAddressLine1>
    <dei:EntityAddressAddressLine2
      contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106"
      id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RleHRyZWdpb246MDBjMmZiZGRmMTcyNDExZDhlOTliNDQ0NzU0YmRiNzBfMzA3_dfdab7ad-539e-416c-970a-3285ea96c422">P.O. Box 5650</dei:EntityAddressAddressLine2>
    <dei:EntityAddressCityOrTown
      contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106"
      id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RleHRyZWdpb246MDBjMmZiZGRmMTcyNDExZDhlOTliNDQ0NzU0YmRiNzBfMzEx_4ff58944-e2e8-4514-8dd7-ed657f3c0cdc">Bismarck</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince
      contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106"
      id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RleHRyZWdpb246MDBjMmZiZGRmMTcyNDExZDhlOTliNDQ0NzU0YmRiNzBfMzE1_854ddf9a-6fa2-4bae-b653-9c8d0379f5c0">ND</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode
      contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106"
      id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RleHRyZWdpb246MDBjMmZiZGRmMTcyNDExZDhlOTliNDQ0NzU0YmRiNzBfMzE4_070ea425-5f6b-4f4b-afcc-3145b0196a7c">58506-5650</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode
      contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106"
      id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RleHRyZWdpb246MDBjMmZiZGRmMTcyNDExZDhlOTliNDQ0NzU0YmRiNzBfNDI3_fe7c693a-6def-48cf-b31a-ee1b668c2338">701</dei:CityAreaCode>
    <dei:LocalPhoneNumber
      contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106"
      id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RleHRyZWdpb246MDBjMmZiZGRmMTcyNDExZDhlOTliNDQ0NzU0YmRiNzBfNDMx_605e365c-a35c-488b-a83d-b83e0fc622a4">530-1000</dei:LocalPhoneNumber>
    <dei:WrittenCommunications
      contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106"
      id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RhYmxlOmI2MjgwMTMzODAxZjQ0YmQ4ZTgyMDJlNDkzZDk5ZWZkL3RhYmxlcmFuZ2U6YjYyODAxMzM4MDFmNDRiZDhlODIwMmU0OTNkOTllZmRfMC0xLTEtMS0xNDUzNDI_e5eefe43-58c0-4bfa-b267-8ff23e000128">false</dei:WrittenCommunications>
    <dei:SolicitingMaterial
      contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106"
      id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RhYmxlOmI2MjgwMTMzODAxZjQ0YmQ4ZTgyMDJlNDkzZDk5ZWZkL3RhYmxlcmFuZ2U6YjYyODAxMzM4MDFmNDRiZDhlODIwMmU0OTNkOTllZmRfMS0xLTEtMS0xNDUzNDU_81114c48-1919-4037-8e34-18a4ba0e5010">false</dei:SolicitingMaterial>
    <dei:PreCommencementTenderOffer
      contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106"
      id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RhYmxlOmI2MjgwMTMzODAxZjQ0YmQ4ZTgyMDJlNDkzZDk5ZWZkL3RhYmxlcmFuZ2U6YjYyODAxMzM4MDFmNDRiZDhlODIwMmU0OTNkOTllZmRfMi0xLTEtMS0xNDUzNDc_24b55443-581d-4078-82ed-9888b34f1703">false</dei:PreCommencementTenderOffer>
    <dei:PreCommencementIssuerTenderOffer
      contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106"
      id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RhYmxlOmI2MjgwMTMzODAxZjQ0YmQ4ZTgyMDJlNDkzZDk5ZWZkL3RhYmxlcmFuZ2U6YjYyODAxMzM4MDFmNDRiZDhlODIwMmU0OTNkOTllZmRfMy0xLTEtMS0xNDUzNDk_bc5148b3-1c51-4022-be93-a3fc4276fb50">false</dei:PreCommencementIssuerTenderOffer>
    <dei:Security12bTitle
      contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106"
      id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RhYmxlOmRmOTkwNzczMjMzZDRkZjM4NWQ5MzM2OGY4ODBmMTU1L3RhYmxlcmFuZ2U6ZGY5OTA3NzMyMzNkNGRmMzg1ZDkzMzY4Zjg4MGYxNTVfMS0wLTEtMS0xNDUzNTE_733e64c6-e86c-4a8e-96f7-939a61d46fec">Common Stock, par value $1.00 per share</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106"
      id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RhYmxlOmRmOTkwNzczMjMzZDRkZjM4NWQ5MzM2OGY4ODBmMTU1L3RhYmxlcmFuZ2U6ZGY5OTA3NzMyMzNkNGRmMzg1ZDkzMzY4Zjg4MGYxNTVfMS0xLTEtMS0xNDUzNTQ_6f5401b1-b46b-4c31-b76d-cc12aa393a5a">MDU</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106"
      id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RhYmxlOmRmOTkwNzczMjMzZDRkZjM4NWQ5MzM2OGY4ODBmMTU1L3RhYmxlcmFuZ2U6ZGY5OTA3NzMyMzNkNGRmMzg1ZDkzMzY4Zjg4MGYxNTVfMS0yLTEtMS0xNDUzNTY_6027c307-a7f7-4159-b383-2fa2286970d7">NYSE</dei:SecurityExchangeName>
    <dei:EntityEmergingGrowthCompany
      contextRef="icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106"
      id="id3VybDovL2RvY3MudjEvZG9jOjBkMjQ2YzUyODg1MzRiNzliMjU5M2U5ZWE2NjVmZjRiL3NlYzowZDI0NmM1Mjg4NTM0Yjc5YjI1OTNlOWVhNjY1ZmY0Yl8zOC9mcmFnOjAwYzJmYmRkZjE3MjQxMWQ4ZTk5YjQ0NDc1NGJkYjcwL3RleHRyZWdpb246MDBjMmZiZGRmMTcyNDExZDhlOTliNDQ0NzU0YmRiNzBfOTA5_94ca534b-45d4-4678-bc05-cf72120971e7">false</dei:EntityEmergingGrowthCompany>
</xbrl>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EXCEL
<SEQUENCE>8
<FILENAME>Financial_Report.xlsx
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
begin 644 Financial_Report.xlsx
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ME85KT N_W1GX",V@H!F<0S-G6S*)8-*)I0CW2^LT&Z[8]B\H;;<ONST$[[+
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ML0(  .(,   -    >&PO<W1Y;&5S+GAM;-U7;6O;,!#^*T(_8&YB:N*1&+9
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M8*<D3?,\C@ 69Y"F& *G$4<P!L !0])T> \^>Q\ETWLJ.?]74_P$4$L#!!0
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M3R54&*!\4YFHO/93;#GICEYG>O\P>=0>6N=6RKV'5[+E&''\GN4/4$L#!!0
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ML;S63AI_YHOA/UY_ 5!+ 0(4 Q0    ( ,^)*E0'04UB@0   +$    0
M          "  0    !D;V-0<F]P<R]A<' N>&UL4$L! A0#%     @ SXDJ
M5#4'RH'N    *P(  !$              ( !KP   &1O8U!R;W!S+V-O<F4N
M>&UL4$L! A0#%     @ SXDJ5)E<G",0!@  G"<  !,              ( !
MS $  'AL+W1H96UE+W1H96UE,2YX;6Q02P$"% ,4    " #/B2I434-"]5,$
M  #J$   &               @($-"   >&PO=V]R:W-H965T<R]S:&5E=#$N
M>&UL4$L! A0#%     @ SXDJ5)^@&_"Q @  X@P   T              ( !
ME@P  'AL+W-T>6QE<RYX;6Q02P$"% ,4    " #/B2I4EXJ[',     3 @
M"P              @ %R#P  7W)E;',O+G)E;'-02P$"% ,4    " #/B2I4
MJL0B%C,!   B @  #P              @ %;$   >&PO=V]R:V)O;VLN>&UL
M4$L! A0#%     @ SXDJ5"0>FZ*M    ^ $  !H              ( !NQ$
M 'AL+U]R96QS+W=O<FMB;V]K+GAM;"YR96QS4$L! A0#%     @ SXDJ5&60
M>9(9 0  SP,  !,              ( !H!(  %M#;VYT96YT7U1Y<&5S72YX
8;6Q02P4&      D "0 ^ @  ZA,

end
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>9
<FILENAME>Show.js
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
// Edgar(tm) Renderer was created by staff of the U.S. Securities and Exchange Commission.  Data and content created by government employees within the scope of their employment are not subject to domestic copyright protection. 17 U.S.C. 105.
var Show={};Show.LastAR=null,Show.showAR=function(a,r,w){if(Show.LastAR)Show.hideAR();var e=a;while(e&&e.nodeName!='TABLE')e=e.nextSibling;if(!e||e.nodeName!='TABLE'){var ref=((window)?w.document:document).getElementById(r);if(ref){e=ref.cloneNode(!0);
e.removeAttribute('id');a.parentNode.appendChild(e)}}
if(e)e.style.display='block';Show.LastAR=e};Show.hideAR=function(){Show.LastAR.style.display='none'};Show.toggleNext=function(a){var e=a;while(e.nodeName!='DIV')e=e.nextSibling;if(!e.style){}else if(!e.style.display){}else{var d,p_;if(e.style.display=='none'){d='block';p='-'}else{d='none';p='+'}
e.style.display=d;if(a.textContent){a.textContent=p+a.textContent.substring(1)}else{a.innerText=p+a.innerText.substring(1)}}}
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>10
<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>11
<FILENAME>FilingSummary.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<XML>
<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.21.4</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>1</ContextCount>
  <ElementCount>122</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>0</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>0</UnitCount>
  <MyReports>
    <Report instance="mdu-20220106.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>0001001 - Document - Cover</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.mdu.com/role/Cover</Role>
      <ShortName>Cover</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="mdu-20220106.htm">mdu-20220106.htm</File>
    <File>mdu-20220106.xsd</File>
    <File>mdu-20220106_def.xml</File>
    <File>mdu-20220106_lab.xml</File>
    <File>mdu-20220106_pre.xml</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy>http://xbrl.sec.gov/dei/2021q4</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>false</HasCalculationLinkbase>
</FilingSummary>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>JSON
<SEQUENCE>13
<FILENAME>MetaLinks.json
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
{
 "instance": {
  "mdu-20220106.htm": {
   "axisCustom": 0,
   "axisStandard": 0,
   "contextCount": 1,
   "dts": {
    "definitionLink": {
     "local": [
      "mdu-20220106_def.xml"
     ]
    },
    "inline": {
     "local": [
      "mdu-20220106.htm"
     ]
    },
    "labelLink": {
     "local": [
      "mdu-20220106_lab.xml"
     ]
    },
    "presentationLink": {
     "local": [
      "mdu-20220106_pre.xml"
     ]
    },
    "schema": {
     "local": [
      "mdu-20220106.xsd"
     ],
     "remote": [
      "http://www.xbrl.org/2003/xlink-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xl-2003-12-31.xsd",
      "https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd",
      "http://www.xbrl.org/2005/xbrldt-2005.xsd",
      "https://www.xbrl.org/dtr/type/2020-01-21/types.xsd",
      "http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd",
      "http://www.xbrl.org/lrr/role/net-2009-12-16.xsd"
     ]
    }
   },
   "elementCount": 28,
   "entityCount": 1,
   "hidden": {
    "http://xbrl.sec.gov/dei/2021q4": 2,
    "total": 2
   },
   "keyCustom": 0,
   "keyStandard": 122,
   "memberCustom": 0,
   "memberStandard": 0,
   "nsprefix": "mdu",
   "nsuri": "http://www.mdu.com/20220106",
   "report": {
    "R1": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "mdu-20220106.htm",
      "contextRef": "icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "dei:DocumentType",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "document",
     "isDefault": "true",
     "longName": "0001001 - Document - Cover",
     "role": "http://www.mdu.com/role/Cover",
     "shortName": "Cover",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "mdu-20220106.htm",
      "contextRef": "icb093c8eb7fb4b4a9ea144a05fdaf61f_D20220106-20220106",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "dei:DocumentType",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    }
   },
   "segmentCount": 0,
   "tag": {
    "dei_AmendmentFlag": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.",
        "label": "Amendment Flag",
        "terseLabel": "Amendment Flag"
       }
      }
     },
     "localname": "AmendmentFlag",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.mdu.com/role/Cover"
     ],
     "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/2021q4",
     "presentation": [
      "http://www.mdu.com/role/Cover"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_CoverAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Cover page.",
        "label": "Cover [Abstract]"
       }
      }
     },
     "localname": "CoverAbstract",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "xbrltype": "stringItemType"
    },
    "dei_DocumentPeriodEndDate": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period.  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/2021q4",
     "presentation": [
      "http://www.mdu.com/role/Cover"
     ],
     "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/2021q4",
     "presentation": [
      "http://www.mdu.com/role/Cover"
     ],
     "xbrltype": "submissionTypeItemType"
    },
    "dei_EntitiesTable": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Container to assemble all relevant information about each entity associated with the document instance",
        "label": "Entities [Table]",
        "terseLabel": "Entities [Table]"
       }
      }
     },
     "localname": "EntitiesTable",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.mdu.com/role/Cover"
     ],
     "xbrltype": "stringItemType"
    },
    "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/2021q4",
     "presentation": [
      "http://www.mdu.com/role/Cover"
     ],
     "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/2021q4",
     "presentation": [
      "http://www.mdu.com/role/Cover"
     ],
     "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/2021q4",
     "presentation": [
      "http://www.mdu.com/role/Cover"
     ],
     "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/2021q4",
     "presentation": [
      "http://www.mdu.com/role/Cover"
     ],
     "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/2021q4",
     "presentation": [
      "http://www.mdu.com/role/Cover"
     ],
     "xbrltype": "stateOrProvinceItemType"
    },
    "dei_EntityCentralIndexKey": {
     "auth_ref": [
      "r1"
     ],
     "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/2021q4",
     "presentation": [
      "http://www.mdu.com/role/Cover"
     ],
     "xbrltype": "centralIndexKeyItemType"
    },
    "dei_EntityDomain": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "All the names of the entities being reported upon in a document. Any legal structure used to conduct activities or to hold assets. Some examples of such structures are corporations, partnerships, limited liability companies, grantor trusts, and other trusts. This item does not include business and geographical segments which are included in the geographical or business segments domains.",
        "label": "Entity [Domain]",
        "terseLabel": "Entity [Domain]"
       }
      }
     },
     "localname": "EntityDomain",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.mdu.com/role/Cover"
     ],
     "xbrltype": "domainItemType"
    },
    "dei_EntityEmergingGrowthCompany": {
     "auth_ref": [
      "r1"
     ],
     "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/2021q4",
     "presentation": [
      "http://www.mdu.com/role/Cover"
     ],
     "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/2021q4",
     "presentation": [
      "http://www.mdu.com/role/Cover"
     ],
     "xbrltype": "fileNumberItemType"
    },
    "dei_EntityIncorporationStateCountryCode": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Two-character EDGAR code representing the state or country of incorporation.",
        "label": "Entity Incorporation, State or Country Code",
        "terseLabel": "Entity Incorporation, State or Country Code"
       }
      }
     },
     "localname": "EntityIncorporationStateCountryCode",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.mdu.com/role/Cover"
     ],
     "xbrltype": "edgarStateCountryItemType"
    },
    "dei_EntityInformationLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Entity Information [Line Items]",
        "terseLabel": "Entity Information [Line Items]"
       }
      }
     },
     "localname": "EntityInformationLineItems",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.mdu.com/role/Cover"
     ],
     "xbrltype": "stringItemType"
    },
    "dei_EntityRegistrantName": {
     "auth_ref": [
      "r1"
     ],
     "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/2021q4",
     "presentation": [
      "http://www.mdu.com/role/Cover"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityTaxIdentificationNumber": {
     "auth_ref": [
      "r1"
     ],
     "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/2021q4",
     "presentation": [
      "http://www.mdu.com/role/Cover"
     ],
     "xbrltype": "employerIdItemType"
    },
    "dei_LegalEntityAxis": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The set of legal entities associated with a report.",
        "label": "Legal Entity [Axis]",
        "terseLabel": "Legal Entity [Axis]"
       }
      }
     },
     "localname": "LegalEntityAxis",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.mdu.com/role/Cover"
     ],
     "xbrltype": "stringItemType"
    },
    "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/2021q4",
     "presentation": [
      "http://www.mdu.com/role/Cover"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_PreCommencementIssuerTenderOffer": {
     "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 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/2021q4",
     "presentation": [
      "http://www.mdu.com/role/Cover"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_PreCommencementTenderOffer": {
     "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 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/2021q4",
     "presentation": [
      "http://www.mdu.com/role/Cover"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_Security12bTitle": {
     "auth_ref": [
      "r0"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Title of a 12(b) registered security.",
        "label": "Title of 12(b) Security",
        "terseLabel": "Title of 12(b) Security"
       }
      }
     },
     "localname": "Security12bTitle",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.mdu.com/role/Cover"
     ],
     "xbrltype": "securityTitleItemType"
    },
    "dei_SecurityExchangeName": {
     "auth_ref": [
      "r2"
     ],
     "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/2021q4",
     "presentation": [
      "http://www.mdu.com/role/Cover"
     ],
     "xbrltype": "edgarExchangeCodeItemType"
    },
    "dei_SolicitingMaterial": {
     "auth_ref": [
      "r5"
     ],
     "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/2021q4",
     "presentation": [
      "http://www.mdu.com/role/Cover"
     ],
     "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/2021q4",
     "presentation": [
      "http://www.mdu.com/role/Cover"
     ],
     "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/2021q4",
     "presentation": [
      "http://www.mdu.com/role/Cover"
     ],
     "xbrltype": "booleanItemType"
    }
   },
   "unitCount": 0
  }
 },
 "std_ref": {
  "r0": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "b"
  },
  "r1": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "b-2"
  },
  "r2": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "d1-1"
  },
  "r3": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "13e",
   "Subsection": "4c"
  },
  "r4": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "14d",
   "Subsection": "2b"
  },
  "r5": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "14a",
   "Subsection": "12"
  },
  "r6": {
   "Name": "Securities Act",
   "Number": "230",
   "Publisher": "SEC",
   "Section": "425"
  }
 },
 "version": "2.1"
}
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>ZIP
<SEQUENCE>14
<FILENAME>0000067716-22-000003-xbrl.zip
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
begin 644 0000067716-22-000003-xbrl.zip
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M5NC&?=1M18CGD++Z%##QV0]X@O(!\1NMW7[CX_K*N-YX=_75.O4QL#=FJT\
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MW%%[=9SE?D>"XJS/$S28)$'* BJVEV")7.CPDDT_^63WXR@*4K$CB0X"6&"
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MGM>YL %:J@)<:([0M8<0=]#'4>!SU(*UD*#]RU=?@ ?Y#; I3[,=86&$(4D
MDU$Z\=* !8((<."&]^EVQ -UY1U ?\J!+,M;1Z":8GN+"?A.4(X"X-JF$RCW
MBK/;5R4@&/TW)R'8DST&37,KE8^KV/9*5]9!,J^8AP,.96!E;J.T\F9-LXQ0
M&QK</*PIF,+ET$A6$"8)5#S+H,>C(!.>]BE)^\MO\K=QP-0VP9K&HQTT&8MC
MYQ[(Z+P8<M8',B3W_\3* +*BUZ*?W KF>@;UXK$87U[SG,_!@'H\S'*K&D^
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MQ6&4GRF(KQ0_A9W_?/;N_P-02P,$%     @ SXDJ5/*DX'=Q @  7P@  !
M  !M9'4M,C R,C Q,#8N>'-DU55;:]LP%'[/K]#\//F6JTV2PEH*@VR#KJ5]
M&[)UG(C8DBO)3?KO)\LVJ=.T6\8>-@A$.N?[SMU'\XM]D:,GD(H)OG "UW<0
M\%10QM<+Y^[V&L^<B^5@,/^ \<.GFQ6Z$FE5 -?H4@+10-&.Z0VZIZ"V*).B
M0/=";MD3P7AI29>B?)9LO=$H],/P6"MC&$\B/X4$SWP:X=&,3G&2 >#1=!)$
M-!AF_C3XN(XIH6 N0SSVR=C )F.<S)((^^EH%@YGR602!M;H7L4JW4!!D$F,
MJWBO%LY&ZS+VO-UNY^Z&KI!K+_3]P'OXLOINH4Z+S1G?]M#[1.8=?NC5ZH0H
MZ. %K7IH<W=347AUHG[@3QQ$M)8LJ31<"UE<04:J7"^<BC]6)&<9 VJ*G4-=
MSA[@A5H3N0;]E12@2I+"^_Z6 X3J K"B%%(C?I+55B"(HLC;URDYJ"G82J1$
MVREXLP(6C^LC#D(\#-R]HH[W6V[[AAA7FO 4SO%M;KCC_8T8#NT\+X:.=WX,
MUIB"U%V+)X\"JSL7/(Y.!Z#>)M1'W!S[G@GG0EL;M:25E27CF6@$1E2''W<Y
MW$#6?2>OAO_$H-B_F,A4BOP74^654I0@-0/U\L.Q!C82LH5CQA=WH_LC)XEK
M ND0K^SW^U"K/4.!?'5(I./JY])PE>E"#DUI_N&\2PGGYFTHRFP,V^;_/7T*
MV;GI&PKC[ ^2K]FW1H\873B7PKQY#JIE=S>?3ZY5ZZW!=88Z4X<8EKYY2<P/
MX</+B)%ES;UC[)&52@']QI?V?-S4EMQ"WB&F)$^K_'Q>OXPG::VPJUN[4KS^
M3FGN+_:.%30+;3GX"5!+ P04    " #/B2I4@=Z^B0L(   :.@  %    &UD
M=2TR,#(R,#$P-E]D968N>&ULW9M;;]LX%L??^RF\WM=ES)MX"9H.NFEG$4QG
M6K09=+ O!B^'CE!9RDI*DWS[/;+C-HF=SM14!TA>$DNF>/X\OV/R\*+G/UTM
MJ\EG:+NRJ8^F[(!.)U"')I;UXFCZ^^G/Q$Q_>O'LV?-_$/+'O]^_F;QJPL42
MZGYRW(+K(4XNR_YL\C%"]VF2VF8Y^=BTG\K/CI 7JX>.F_/KMER<]1-..;__
M;7L(A;(T@">&1DNDB9KX!$"D5LQ&)A+5[%^+P^@BX(4@!74%%E,%\<9;0H,T
M7!BO%&>K2JNR_G0X_/&N@PDVKNY6ET?3L[X_/YS-+B\O#ZY\6QTT[6+&*16S
M3>GI3?&KK?*78E6:66MGJV^_%.W*706Q6C;[X]<W'\(9+!TIZZYW=?AJ ,W'
M_LN#M]44L_676+0K#[O5\V^:X/H5GC]MPN3!$L,5V10CPRW".!'LX*J+TQ?/
M)I.UYUP;VJ:"]Y F-Q]_?W^RK;2L^UDLE[.;,C-75:AX54-_?0Y'TZY<GE>P
MN7?60GI0_:;)@ZABD///H;99MJ8S%-*&"P\$[T(]!/B(&G?5GJ_Y2UTD0G(7
M53^BXNVZ1]7;+%TYIH.WJAY![:HBLH2EAW9,J7?JO:5S(_*^PJ'*9;PX",UR
MME)VW'S^*XKP&3)THY11M;*\?NZ6141;UN706[S!RYN'!Q/?91NN>J@CQ.FD
MC$?3TNH@:0A1)1ZD3LPX:RDK? H*.SJ@\W45@XJ-CJH)=VJLACZL^6*F<AZJ
MU=UYA'+^NN[+_OJD3DV[=#?BX:2'93<'[91S7N#XX 210FIBI3?$B4)H+E(P
MAFYCZS9AT$$X6#2?9V@%V7'V/SE\).N/:WC?M+_V[7ZMV@R5IUAVSIW4!9.4
M<%\X(A$@\<XH(JQ)4@,O*$_9[;AM\:[RKW'QLMVTX>9GL>?O9ACL1R?8-R.X
M;\T&Q4\G31NA/9K2,3"^@[9LXNLZOL*\![^1 -H:@@38((@1R[4B1GDJF"E\
M%'(TGG=,/QFP^SMTFS#+(;QNXWM8E%W?NKK_S2UAKK52VDI'F :,..SZB*=6
M8,JDF*?))LP_1^IX[EI^]'RSW;F-E^?C/<%937O>M*M&?N@QY(Z;B[IOKX^;
M"/,B,%$DQ8EUR@QMM<18#J30+!661@I>CS;,?$/($X$_GK.W8T'DQ\+/906_
M70Q^F;/DN=-&$R9P.BD%2.*4+H@('H(S$%T0(X'_:O6)4-[3C=M(93[24W=U
M$G%0*5.YGBW?"(LF4@$B$2$]]CL<P\SZHB!4A,AU2M: &HGO Q*>".PQ'+Q-
MOL@G_S+&%KKNYM_07#8W-'IIJ2?*1$PF@A;$8OY($K4J,J$QNQBK.]]A_HD0
MSW7L-FWU(VCSN9#41C"":(E9HY06<XMD*/%@O</[A=;Y<ZL'S3]9VM_GV&W:
M>C3:Q_CQ;7O:7-;S0O@ TA?$!#WD#L")244BX R%6 @'SH[+^JOQIT5Z3Z=N
M<S:C<5YEBF_;=VWSN:P#S%6TUGI+B:/#I(%92;P*BG#/%=>2Z<3"N+#O*7A:
MQ'/<NXW=CH;]7=/UKOIO>;Z:'0CJ"VX+2J3"2:*$ F<'U&OBH@0JBY"29^-"
MOV/_:2'?W[4[UEBREM&&[N9E"VXE1'$>A..>B"'\)$8=<4RAFB0X4&UCXOF,
M;UM\]%3W=M\.CEF+9<-N9/7NK*DW4[\@03&<!9"@DB8819@24BZ)586TDGN+
MHTLVR_M6'SW/+#?N8)JU0O:Q+?L>ZN-FN;RH;Z9WW=R*8('QB).ZA$U+#&=V
M(<1AW<XR)\$+E3]UWFGZT=/-=^@.Q%D+7Q^:J@SHQ'KQ*R8!;>FJN3+*V( B
MF!PBSFB'B;TQA$6?:*&9MB%_"V/;[J.'F^G*'62SUK_>M3#$&6!&M]HN&W9N
MV[<I89^B+<,4'F.-)9EPG#",F,('$B( 5PJO)<\F_+#]1T]Z)-?N()ZU[G5/
MUDG774![6UQ!(<0H#:(20WY@,!P#I1B.9MATX=&8_$7M/U/QU.CGN7E'#&2M
MAGV <(&#S#7C_K3L*YC'Y&516$\H&,SM69#$ 6JC-C@>$H6D1NC-[UE]](RS
MW+B#:=::UVGKAG.7'ZZ7OJGF1>( 4@N2J ><K#%-O B<,$6IBIZF&/-7NNZ8
M?/0T]W?@#I19RUJ;N'I]%<Y<O8#5'KAW'"U#0$%N..)0!.(9SMV"9<$%;92S
MX_U$;UM^]&"SW;F#[PCK5Z^7T"XPX/[3-I?]&0X6YZZ^GIN(J3P#2JSECLCA
MO(-/'#,%'!R8Y1",&VM+>:> 1T][+.?N.$>2M82UUG6,N4#KJA/, ZY^@>NY
M Q-#@DC <X[=C,)976'UL((N04 A,5<8"?<]TT\$=(Y#=R#.6MUZB9E>'+*]
MGRNWF#L4SYAF)+" (XBB!;&,62*C4C98CLW*WUB\8_+1(]W?@3M0YA_[*J$[
M=1[S.F8B6!TQI5,!VZ,T)XX[1VQ45"6K \!(YX@W)D=$>>OUBK_G-[F7VW:=
MRIRLS\H?AJKI(!Y-^_8"OMYLZAZN^M?5:GYU-.U@,7S(6IV&A:MN=D"NRFZ>
MF(T8<9CYL>%4J54HW2=)H@4I5-">CK#1<,_HB."_\0[+CD#8CUHSCO=^R)G<
M5ZL^["_IF-][8R9SJ'UUZZ63<;KCAU[MN0LR"\'6T)KAOQ_)D[/@"^TX4:NW
M^8:QP5FAB#+..0.HU.2O2_YXCG=>>?H;,'Z/VQ[$]WQVSP<X9'QZ\>SF]O!G
M>$/PQ;/_ U!+ P04    " #/B2I4#=EJ<.T+  #W;P  %    &UD=2TR,#(R
M,#$P-E]L86(N>&ULU9UK;]LX%H:_]U=HLU]V@6'-FRBRF';0S4P7Q6;:HLU@
M!CM8&+PI$<:V,K+2)/]^*?D27R1;E&Q5\Z5U8OKP/:_U\%"DI'S_P^-T$GRU
MV3Q)9Z\OT$MX$=B93DTRNWE]\<OU.\ O?GCSXL7W?P/@MW]]O@I^3/7]U,[R
MX#*S,K<F>$CRV^!78^=_!'&63H-?T^R/Y*L$X$WYH<OT[BE+;F[S $.,=]_-
M7MF0":BM AP: 2@W$5"QM8!&# F#2 PC]-W-*R.-=3\0$$(9NF8L!(HK :"F
M'!.N&,.H##I)9G^\*OY1<FX#E]QL7O[X^N(VS^]>C48/#P\O'U4V>9EF-R,,
M(1FM6E\LFS_NM7\@96LDA!B5[ZZ;SI.JABXL&OWV\]47?6NG$B2S>2YGNNA@
MGKR:E[^\2K7,2\^/Z@IJ6Q0_@54S4/P*( P(>ODX-Q=O7@3!PHXLG=C/-@Z*
M_W_Y_+ZV2S$J6HQF]J;X9C_9+$G-EUQF^954=N+4E]'RISO[^F*>3.\F=O6[
MV\S&U6$G6;85M5 I"I6(%2K_7M?9J(/\$^G-][6>0%R9[H=3:3SDZ8>3R;UV
MXX,]O^"-;CI+7AQ0/\U,7\?NNJO.TL^O^%2'19K+20^'Q7,W&Y(GQ2^NW*ME
M-T6@ X-IV<]RZ-Z0:A]S.S-V,5INA0X2\_K"O1H;FXP_9?8RG;JZIVU1_-[/
MY_<VNRX^F7V,8YN-A61*"L0 Q BZXD4%<!4+ F%$2 U6A @TSM?']]C.P"]?
M5E+*_IIW=N&1<5Y#;F;GZ7VFGVO>=%)5R%P-*ZH>'\WDU,[OY/(#3G$Q/5@D
M\<;I!7I#<+!0'"PD!Z7F[T?/F7:T>M*K@9,!>Y?J+5V38DJ19KNFI-K+E&=<
MYRZ?TI&YU2]OTJ\C%\8Y@]&?M'@)%B]+4AMU,-K[XM]FJPQDIH]\&\L6(YVZ
M#NYRL/7%%#-/_U3SU/^865CMQ%P$:>;>='/FBL2VCNB?9GF2/[TUQATX\T^I
MFPM._IO<7:;&CHV*(BRU I0P-^=%A@)E8@X$%C"$Q&C"6=-AH[Z;H0T8"Z7!
M4NIWP4)LX-0&A=SF8\4!9X^/$J?QZ\SC0UNKO(:&XTZT'A0.A.YM.#B>WN9
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M,C R,C Q,#8N>'-D4$L! A0#%     @ SXDJ5('>OHD+"   &CH  !0
M         ( !NA8  &UD=2TR,#(R,#$P-E]D968N>&UL4$L! A0#%     @
MSXDJ5 W9:G#M"P  ]V\  !0              ( !]QX  &UD=2TR,#(R,#$P
M-E]L86(N>&UL4$L! A0#%     @ SXDJ5 "<.-&<!P  ACP  !0
M     ( !%BL  &UD=2TR,#(R,#$P-E]P<F4N>&UL4$L%!@     %  4 0@$
' .0R      $!

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