Inventories (Tables)
 3 Months Ended 12 Months Ended
Mar. 28, 2015
Dec. 27, 2014
Inventory Disclosure [Abstract]    
Components of Inventories

Inventories consisted of the following as of March 28, 2015 and December 27, 2014:

 

     March 28,      December 27,  
     2015      2014  

Aggregate stockpiles

    $ 90,000       $ 88,211   

Finished goods

      18,355         8,826   

Work in process

      2,065         1,801   

Raw materials

      22,887         12,715   
  

 

 

     

 

 

  

Total

 $ 133,307    $ 111,553   
  

 

 

     

 

 

  

Inventories consisted of the following as of December 27, 2014 and December 28, 2013:

 

     2014      2013  

Aggregate stockpiles

    $ 88,211       $ 70,300   

Finished goods

      8,826         11,207   

Work in process

      1,801         2,623   

Raw materials

      12,715         12,302   
  

 

 

     

 

 

  

Total

 $ 111,553    $ 96,432