XML 175 R156.htm IDEA: XBRL DOCUMENT v3.8.0.1
Benefits Expected to be Paid from Plans Assets (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 30, 2017
Dec. 31, 2016
Jan. 02, 2016
Pension plans      
Schedule of Pension and Other Postretirement Benefits Expected Benefit Payments [Line Items]      
Benefits paid $ 24,408 $ 25,130 $ 25,014
2018 35,458    
2019 34,025    
2020 32,945    
2021 32,023    
2022 31,040    
2023 – 2027 122,992    
Pension plans | Includes Plan No 1 and No 2 Single Lump Sum      
Schedule of Pension and Other Postretirement Benefits Expected Benefit Payments [Line Items]      
Benefits paid [1]   40,864  
Pension plans | Includes Plan No 1 and No 2 Single Lump Sum      
Schedule of Pension and Other Postretirement Benefits Expected Benefit Payments [Line Items]      
Benefits paid [2] 38,776    
Postretirement Benefit Plans | Employer Gross Contribution      
Schedule of Pension and Other Postretirement Benefits Expected Benefit Payments [Line Items]      
Benefits paid 376 $ 841 $ 674
2018 680    
2019 735    
2020 708    
2021 699    
2022 692    
2023 – 2027 $ 3,477    
[1] Includes $15.7 million and $1.6 million from Plan No. 1 and Plan No. 2, respectively paid as lump sums.
[2] Includes $14.4 million and $1.6 million from Plan No. 1 and Plan No. 2, respectively, paid as lump sums.