Fair Value Measurements (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 25, 2011	Sep. 25, 2011	Jun. 26, 2011	Mar. 27, 2011	Dec. 26, 2010	Sep. 26, 2010	Jun. 27, 2010	Mar. 28, 2010	Dec. 25, 2011	Dec. 26, 2010	Dec. 27, 2009
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of assets, goodwill			$ 152,093						$ 152,093
Impairment of assets, other intangible assets									10,574
Impairment of assets, property, plant and equipment									1,767	16,148	4,179
Impairment of assets	3,116	0	161,318	0	0	16,148	0	0	164,434	16,148	4,179
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill, fair value disclosure	0								0
Other intangible assets (excluding goodwill), fair value disclosure	0								0
Property, plant, and equipment	0				0				0	0	0
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill, fair value disclosure	0								0
Other intangible assets (excluding goodwill), fair value disclosure	0								0
Property, plant, and equipment	0				0				0	0	0
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill, fair value disclosure	0								0
Other intangible assets (excluding goodwill), fair value disclosure	2,864								2,864
Property, plant, and equipment	0				4,838				0	4,838	0
Carrying (Reported) Amount, Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill, fair value disclosure	0								0
Other intangible assets (excluding goodwill), fair value disclosure	2,864								2,864
Property, plant, and equipment	$ 0				$ 4,838				$ 0	$ 4,838	$ 0