Consolidated Condensed Statements of Comprehensive Income (Loss) (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 23, 2012	Sep. 30, 2013	Sep. 23, 2012
Net loss	$ (14,616)	$ (30,333)	$ (48,457)	$ (211,053)
Amortization of prior-service costs (postretirement plans)	22		68
Amortization of actuarial net loss (pension and postretirement plans)	1,945		5,832
Other comprehensive income before income taxes	1,967		5,900
Income tax expense related to other comprehensive income	767		2,128
Other comprehensive income, net of taxes	1,200		3,772
Comprehensive loss	$ (13,416)	$ (30,333)	$ (44,685)	$ (211,053)