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Leases - Narrative (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Nov. 30, 2019 | Nov. 30, 2018 | Nov. 30, 2020
Lessee, Lease, Description [Line Items] |  |  |
Operating leases, rent expense | $ 48,100,000 | $ 58,500,000 |
Distribution Facility |  |  |
Lessee, Lease, Description [Line Items] |  |  |
Capital leases, balance sheet, assets by major class, net |  |  | $ 315,000,000
Residual value of leased asset |  |  | $ 0.75

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- Definition The total gross amount less the charge for the use of the long-lived depreciable assets subject to a lease meeting the criteria for capitalization. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121616839&loc=d3e45280-112737 + Details
Name: | us-gaap_CapitalLeasesBalanceSheetAssetsByMajorClassNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References No definition available. + Details
Name: | us-gaap_LeaseAndRentalExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition 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. + References No definition available. + Details
Name: | us-gaap_LesseeLeaseDescriptionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount of residual asset covered by residual value guarantee. Excludes guarantee considered to be lease payments for lessor. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 30 -Section 50 -Paragraph 7 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121576215&loc=SL77919381-209981 + Details
Name: | us-gaap_ResidualValueOfLeasedAsset
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Details
Name: | us-gaap_BalanceSheetLocationAxis=mkc_DistributionFacillityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |