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Summit Materials (SUM)

Cover Document

Cover DocumentAug. 04, 2021
Cover [Abstract]
Document Type8-K
Document Period End DateAug. 4,
2021
Entity Registrant NameSummit Materials, Inc.
Entity Incorporation, State or Country CodeDE
Entity File Number001-36873
Entity Tax Identification Number47-1984212
Entity Address, Address Line One1550 Wynkoop Street
Entity Address, Address Line Two3rd Floor
Entity Address, City or TownDenver
Entity Address, State or ProvinceCO
Entity Address, Postal Zip Code80202
City Area Code303
Local Phone Number893-0012
Written Communicationsfalse
Soliciting Materialfalse
Pre-commencement Tender Offerfalse
Pre-commencement Issuer Tender Offerfalse
Title of 12(b) SecurityClass A Common Stock (par value, $0.01 per share)
Trading SymbolSUM
Security Exchange NameNYSE
Entity Emerging Growth Companyfalse
Entity Central Index Key0001621563
Amendment Flagfalse