v3.22.4
Stockholder's Equity/Members' Interest (Tables)
 12 Months Ended
Dec. 31, 2022
Company Information  
Schedule of Changes in Ownership of Summit Holdings The following table summarizes the changes in our ownership of Summit Holdings:
 Summit Inc. Shares (Class A)LP UnitsTotalSummit Inc. Ownership Percentage
Balance — January 2, 2021 (1)116,369,809 2,873,170 119,242,979 97.6 %
Exchanges during period1,559,164 (1,559,164)— 
Stock option exercises1,745,940 — 1,745,940 
Other equity transactions1,009,409 — 1,009,409 
Balance — January 1, 2022 (1)120,684,322 1,314,006 121,998,328 98.9 %
Exchanges during period2,002 (2,002)— 
Stock option exercises10,691 — 10,691 
Repurchases of common stock(3,427,510)— (3,427,510)
Other equity transactions1,139,150 — 1,139,150 
Balance — December 31, 2022118,408,655 1,312,004 119,720,659 98.9 %
______________________
(1)The December 28, 2019 and January 1, 2022 balances of Summit Inc. Class A Shares of 116,369,809 and 120,684,322, respectively, are shown to reflect the retroactive application of 1,979,214 shares of Class A common stock issued as a stock dividend on December 29, 2022.
Schedule of Changes in Each Component of Accumulated Other Comprehensive Income (Loss) The changes in each component of accumulated other comprehensive income (loss) consisted of the following:
   Accumulated
  Foreign currencyother
 Change intranslationcomprehensive
 retirement plansadjustmentsincome (loss)
Balance — January 2, 2021$533 $4,670 $5,203 
Postretirement liability adjustment, net of tax975 — 975 
Foreign currency translation adjustment, net of tax— 905 905 
Balance — January 1, 2022$1,508 $5,575 $7,083 
Postretirement liability adjustment, net of tax4,848 — 4,848 
Foreign currency translation adjustment, net of tax— (8,847)(8,847)
Balance — December 31, 2022$6,356 $(3,272)$3,084 
Summit Materials, LLC  
Company Information  
Schedule of Changes in Each Component of Accumulated Other Comprehensive Income (Loss) The changes in each component of accumulated other comprehensive income (loss) consisted of the following:
   Accumulated
  Foreign currencyother
 Change intranslationcomprehensive
 retirement plansadjustmentsincome (loss)
Balance — January 2, 2021$(8,546)$(10,037)$(18,583)
Postretirement liability adjustment1,303 — 1,303 
Foreign currency translation adjustment— 1,254 1,254 
Balance — January 1, 2022$(7,243)$(8,783)$(16,026)
Postretirement liability adjustment6,481 — 6,481 
Foreign currency translation adjustment— (11,831)(11,831)
Balance — December 31, 2022$(762)$(20,614)$(21,376)