Consolidated Condensed Statements of Comprehensive Loss (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 24, 2012	Jun. 30, 2013	Jun. 24, 2012
Net loss	$ (16,146)	$ (146,296)	$ (33,841)	$ (180,720)
Amortization of prior-service costs (postretirement plans)	21		46
Amortization of net loss (pension and postretirement plans)	1,987		3,887
Other comprehensive income before income taxes	2,008		3,933
Income tax expense related to other comprehensive income	1,361		1,361
Other comprehensive income	647		2,572
Comprehensive loss	$ (15,499)	$ (146,296)	$ (31,269)	$ (180,720)