Unaudited Condensed Consolidated Statements of Comprehensive Loss (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended	12 Months Ended
Jun. 24, 2012	Jun. 26, 2011	Jun. 24, 2012	Jun. 26, 2011	Dec. 25, 2011	Dec. 26, 2010	Dec. 20, 2009
Unaudited Condensed Consolidated Statements of Comprehensive Loss [Abstract]
Net loss	$ (46,074)	$ (5,416)	$ (78,580)	$ (39,487)	$ (229,417)	$ (57,969)	$ (31,272)
Other comprehensive income:
Unrecognized actuarial gains (losses), net of tax					1,241	(1,442)	4,475
Unwind of interest rate swap	339		679		339
Amortization of pension and post-retirement benefit transition obligation, net of tax	129	118	257	236	472	414	447
Change in fair value of interest rate swap, net of tax		20		474	1,458	1,141	229
Other comprehensive income	468	138	936	710	3,510	113	5,151
Comprehensive loss	$ (45,606)	$ (5,278)	$ (77,644)	$ (38,777)	$ (225,907)	$ (57,856)	$ (26,121)

The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

+ References+ Details

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

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+ Details

- Definition

Net of tax amount of other comprehensive income (loss) attributable to the parent entity.

+ References

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+ Details

- Definition

Net of tax amount, before reclassification adjustments, of the change in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Also includes an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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