Pension Benefits - Schedule of Assumptions Used (Details)	12 Months Ended
	Dec. 30, 2012	Dec. 25, 2011	Dec. 26, 2010
Pension Benefits
Calculation term, market-related value	3 years
New York Times Newspaper Guild Pension Plan [Member]
Pension Benefits
Defined Benefit Plan, Actual Plan Asset Allocations	58.00%
Qualified Plans [Member]
Pension Benefits
Discount rate used to calculate benefit obligation	4.00%	5.05%
Estimated increase in compensation level used to calculate benefit obligation	3.00%	3.00%
Discount rate used to calculate net periodic benefit cost	5.05%	5.60%	6.30%
Estimated increase in compensation level use to calculate net periodic benefit cost	3.00%	4.00%	4.00%
Expected long-term rate of return on assets	8.00%	8.25%	8.75%
Non-Qualified Plans [Member]
Pension Benefits
Discount rate used to calculate benefit obligation	3.70%	4.80%
Estimated increase in compensation level used to calculate benefit obligation	3.50%	3.50%
Discount rate used to calculate net periodic benefit cost	4.80%	5.45%	6.00%
Estimated increase in compensation level use to calculate net periodic benefit cost	3.50%	3.50%	3.50%
Fixed Income Securities [Member] | New York Times Newspaper Guild Pension Plan [Member]
Pension Benefits
Defined Benefit Plan, Actual Plan Asset Allocations	28.00%
Hedge Fund of Funds [Member] | New York Times Newspaper Guild Pension Plan [Member]
Pension Benefits
Defined Benefit Plan, Actual Plan Asset Allocations	10.00%