Related Party Transactions - Additional Information (Detail) - USD ($)
1 Months Ended 2 Months Ended 3 Months Ended 12 Months Ended
Sep. 30, 2014
Jan. 31, 2014
Mar. 11, 2015
Mar. 28, 2015
Mar. 29, 2014
Dec. 27, 2014
Dec. 28, 2013
Dec. 29, 2012
Related Party Transaction [Line Items]                
Transaction fees paid       $ 1,700,000 $ 1,700,000 $ 3,900,000    
Revenue from unconsolidated affiliates             $ 600,000 $ 7,900,000
Costs incurred in connection with several transactions with unconsolidated affiliates             200,000 200,000
Accounts receivable from affiliates             400,000  
Related party transactions $ 5,750,000 $ 13,000,000            
Assets sold to related party         2,300,000      
Blackstone Management Partners L.L.C. [Member]                
Related Party Transaction [Line Items]                
Management fees incurred       $ 1,000,000 900,000 $ 4,400,000 2,600,000 2,100,000
Agreement date           Jul. 30, 2009    
Percentage transaction fee on value of entity acquired       1.00%   1.00%    
Consideration paid / received on assets acquired / disposed       1.00%   1.00%    
Consideration of Consolidated profit       $300,000 or 2.0% which ever is higher        
Payment for services       $ 300,000        
Management fee agreement termination date       Mar. 17, 2015        
Management fee paid as of termination       $ 13,800,000        
Blackstone And Affiliates [Member]                
Related Party Transaction [Line Items]                
Management fee paid as of termination       13,400,000        
Silverhawk Summit LP [Member]                
Related Party Transaction [Line Items]                
Management fee paid as of termination       $ 400,000        
Continental Cement Company, L.L.C. [Member]                
Related Party Transaction [Line Items]                
Sales to related parties     $ 1,400,000   1,700,000 $ 14,300,000 12,700,000 $ 12,500,000
Accounts receivables due from related parties           200,000 $ 200,000  
Non controlling interest owned         $ 700,000      
Continental Cement Company, L.L.C. [Member] | Scenario, Previously Reported [Member]                
Related Party Transaction [Line Items]                
Accounts receivables due from related parties           $ 1,200,000