Pension Benefits - Net Periodic Pension Cost (Details) (USD $)	3 Months Ended								12 Months Ended
	Dec. 30, 2012		Sep. 23, 2012		Jun. 24, 2012		Mar. 25, 2012		Dec. 30, 2012		Dec. 25, 2011	Dec. 26, 2010
Pension Benefits
Pension settlement expense	$ 48,729,000	[1]	$ 0	[1]	$ 0	[1]	$ 0	[1]	$ 48,729,000	[1]	$ 0	$ 0
Payments for pension settlement	112,000,000
Change in funded status							3,000,000
Accumulated Other Comprehensive Income (Loss) [Member]
Pension Benefits
Change in projected benfit obligation	32,000,000
Change in funded status	32,000,000
Qualified Plans [Member]
Pension Benefits
Service cost									11,903,000		12,079,000	12,045,000
Interest cost									96,265,000		99,991,000	102,523,000
Expected return on plan assets									(118,551,000)		(111,813,000)	(113,625,000)
Recognized actuarial loss									34,294,000		25,781,000	16,496,000
Amortization of prior service cost									574,000		803,000	803,000
Effect of settlement									48,729,000		0	0
Effect of sale of Regional Media Group									(5,097,000)		0	0
Net periodic postretirement benefit income									68,117,000		26,841,000	18,242,000
Non-Qualified Plans [Member]
Pension Benefits
Service cost									1,656,000		1,660,000	1,896,000
Interest cost									12,807,000		13,293,000	13,602,000
Expected return on plan assets									0		0	0
Recognized actuarial loss									4,648,000		3,214,000	4,103,000
Amortization of prior service cost									0		0	0
Effect of settlement									0		0	0
Effect of sale of Regional Media Group									0		0	0
Net periodic postretirement benefit income									19,111,000		18,167,000	19,601,000
Pension Plans, Defined Benefit [Member]
Pension Benefits
Service cost									13,559,000		13,739,000	13,941,000
Interest cost									109,072,000		113,284,000	116,125,000
Expected return on plan assets									(118,551,000)		(111,813,000)	(113,625,000)
Recognized actuarial loss									38,942,000		28,995,000	20,599,000
Amortization of prior service cost									574,000		803,000	803,000
Effect of settlement									48,729,000		0	0
Effect of sale of Regional Media Group									(5,097,000)		0	0
Net periodic postretirement benefit income									$ 87,228,000		$ 45,008,000	$ 37,843,000

[1] In the fourth quarter of 2012, we recorded a $48.7 million non-cash pension settlement charge in connection with the immediate pension benefit offer to certain former employees who participate in The New York Times Companies Pension Plan.