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Investments - Equity Method Investments (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 26, 2016
Mar. 27, 2016
Jun. 28, 2015
Jun. 26, 2016
Jun. 28, 2015
Schedule of Equity Method Investments [Line Items]          
Loss from joint ventures $ 412,000   $ 356,000 $ 42,308,000 $ 928,000
Distributions received   $ 0 $ 0 0 0
Newsprint and supercalendered paper purchased from the Paper Mills       $ 6,600,000 $ 6,100,000
Donohue Malbaie Inc.          
Schedule of Equity Method Investments [Line Items]          
Equity method investment, ownership percentage 49.00%     49.00%  
Madison Paper Industries          
Schedule of Equity Method Investments [Line Items]          
Equity method investment, ownership percentage 40.00%     40.00%  
Noncontrolling interest, ownership percentage by parent 10.00%     10.00%  
Loss from joint ventures $ 2,300,000 41,400,000      
Loss from joint ventures after tax and adjusted for allocation of loss to noncontrolling interest $ 1,600,000 20,100,000      
Investment in Madison   $ 0      
Madison Paper Industries Owned Consolidated Subsidiary [Member]          
Schedule of Equity Method Investments [Line Items]          
Equity method investment, ownership percentage 80.00%     80.00%  
Noncontrolling interest, ownership percentage by parent 20.00%     20.00%  
Women in the World Media, LLC          
Schedule of Equity Method Investments [Line Items]          
Equity method investment, ownership percentage 30.00%     30.00%  
Accrued Expenses and Other          
Schedule of Equity Method Investments [Line Items]          
Obligation to fund losses of equity method investment $ 31,900,000     $ 31,900,000  
UPM-Kymmene | Madison Paper Industries          
Schedule of Equity Method Investments [Line Items]          
Equity method investment, ownership percentage 60.00%     60.00%