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Pension Benefits - Contributions and Expected Benefit Payments (Details) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Jan. 31, 2013
Dec. 27, 2015
Dec. 29, 2013
Pension Benefits      
Future employer contributions in next fiscal year   $ 8,000  
Pension contributions   7,100 $ 74,000
Contributions to New York Times Newspaper Guild Pension Plan [Member]      
Pension Benefits      
Pension contributions $ 57,000    
Pension contributions necessary to satisfy minimum funding requirements $ 20,000    
Qualified Plans [Member]      
Pension Benefits      
2016   107,149  
2017   108,010  
2018   109,054  
2019   110,552  
2020   111,509  
2021-2025   581,287  
Non-Qualified Plans [Member]      
Pension Benefits      
2016   16,360  
2017   17,110  
2018   17,079  
2019   17,186  
2020   16,876  
2021-2025   82,427  
Company Sponsored Pension Plan [Member]      
Pension Benefits      
2016   123,509  
2017   125,120  
2018   126,133  
2019   127,738  
2020   128,385  
2021-2025   $ 663,714