Fair Value Measurements (Details) (USD $)	3 Months Ended																12 Months Ended
	Dec. 30, 2012		Sep. 23, 2012		Jun. 24, 2012		Mar. 25, 2012		Dec. 25, 2011		Sep. 25, 2011		Jun. 26, 2011		Mar. 27, 2011		Dec. 30, 2012		Dec. 25, 2011		Dec. 26, 2010
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of assets, goodwill																	$ 194,732,000	[1]	$ 155,209,000
Impairment of assets, other intangible assets																	5,500,000
Impairment Testing Annual Growth Rate Assumption																					2.00%
Impairment Testing Discount Rate Assumption																			10.70%		10.50%
Impairment of investments	0	[2]	600,000	[2]	0	[2]	4,900,000	[2]									5,500,000	[2]	0		0
Impairment of assets, property, plant and equipment																			1,767,000		16,148,000
Impairment of assets									0	[3]	0	[3]	9,225,000	[3]	0	[3]	0		9,225,000	[3]	16,148,000
Impairment of assets																	194,732,000		164,434,000		16,148,000
Carrying value of assets to be sold																					20,000,000
Long-term Debt, Excluding Current Maturities	690,000,000								692,000,000								690,000,000		692,000,000
Long-term debt, fair value	840,000,000								800,000,000								840,000,000		800,000,000
Assets Held-for-sale [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of assets													9,225,000
About Group [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of assets, goodwill					194,700,000												194,732,000		3,116,000
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of assets, goodwill																			152,093,000	[4]
Impairment of assets, other intangible assets																			10,574,000
Impairment Testing Annual Growth Rate Assumption																	3.50%		5.00%
Impairment Testing Discount Rate Assumption																	15.00%		13.80%
Fair Value, Measurements, Nonrecurring [Member] | Cost-method Investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of investments																	5,500,000
Fair Value, Measurements, Nonrecurring [Member] | About Group [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of assets, goodwill			194,700,000
Estimate of Fair Value, Fair Value Disclosure [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale security	4,444,000																4,444,000
Deferred compensation	52,882,000								71,354,000								52,882,000		71,354,000
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill	0																0
Cost method investments	0																0
Property, plant and equipment, net									0										0		0
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale security	4,444,000																4,444,000
Deferred compensation	52,882,000								71,354,000								52,882,000		71,354,000
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill									0										0
Cost method investments									0										0
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill	0																0
Cost method investments	0																0
Property, plant and equipment, net									0										0		0
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale security	0																0
Deferred compensation	0								0								0		0
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill									0										0
Cost method investments									0										0
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill	0																0
Cost method investments	0																0
Property, plant and equipment, net									0										0		4,838,000
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale security	0																0
Deferred compensation	0								0								0		0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill									0										0
Cost method investments									2,864,000										2,864,000
Carrying (Reported) Amount, Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill	0								0								0		0
Cost method investments	0								2,864,000								0		2,864,000
Property, plant and equipment, net									0										0		4,838,000
Carrying value of intangible asset after impairment charge													0
Carrying (Reported) Amount, Fair Value Disclosure [Member] | Assets Held-for-sale [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying value of intangible asset after impairment charge									0										0
Carrying (Reported) Amount, Fair Value Disclosure [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill									$ 0										$ 0

[1] Impairment losses relate to the About Group and are included within “(Loss)/income from discontinued operations, net of income taxes” for the year ended December 30, 2012. We sold the About Group in September 2012. See Note 15 for additional information.

[2] In the first and third quarters of 2012, we recorded a $4.9 million and $0.6 million non-cash charge, respectively, for the impairment of certain investments.

[3] In the second quarter of 2011, we recorded a $9.2 million charge for the impairment of assets related to certain assets held for sale primarily of Baseline.

[4] Impairment losses relate to the Regional Media Group and are included within “(Loss)/income from discontinued operations, net of income taxes” for the year ended December 25, 2011. We sold the Regional Media Group in January 2012. See Note 15 for additional information.