CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 30, 2012	Dec. 25, 2011	Dec. 26, 2010
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
NET INCOME (LOSS)	$ (144)	$ 54,389	$ 36,183
Pension and post retirement plans:
Unrealized net gain (loss) and other components of benefit plans, net of taxes of $88,622, $66,725 and $(4,940)	(132,871)	(100,087)	7,410
Investment in unconsolidated companies:
Other comprehensive income (loss), net of taxes of $528, $336 and $(35)	(791)	(506)	53
Other comprehensive income (loss)	(133,662)	(100,593)	7,463
Comprehensive income (loss)	$ (133,806)	$ (46,204)	$ 43,646