LONG-TERM DEBT (Details 3) (USD $)	3 Months Ended	12 Months Ended						12 Months Ended								12 Months Ended					0 Months Ended	12 Months Ended	0 Months Ended		3 Months Ended		12 Months Ended
	Mar. 25, 2012	Dec. 30, 2012	Dec. 25, 2011	Dec. 26, 2010	Feb. 28, 2013 Subsequent event	Jun. 22, 2012 Revolving loan facility Previous Agreement	Jun. 21, 2012 Revolving loan facility January 26, 2010 Amendment	Dec. 30, 2012 Revolving credit facility	Dec. 30, 2012 Revolving credit facility Period from quarter ended March 2012 through the quarter ended December 2012	Dec. 30, 2012 Revolving credit facility Period from quarter ended March 2013 through the quarter ended December 2013	Dec. 30, 2012 Revolving credit facility Minimum	Dec. 30, 2012 Revolving credit facility Maximum	Dec. 30, 2012 Revolving credit facility LIBOR	Dec. 30, 2012 Revolving credit facility LIBOR Minimum	Dec. 30, 2012 Revolving credit facility LIBOR Maximum	Dec. 30, 2012 Revolving credit facility Base rate	Dec. 30, 2012 Revolving credit facility Base rate Minimum	Dec. 30, 2012 Revolving credit facility Base rate Maximum	Dec. 18, 2012 Revolving credit facility Amendment 18, December 2012	Dec. 18, 2012 Letter of credit Amendment 18, December 2012	Dec. 18, 2012 9.00% Notes	Dec. 30, 2012 9.00% Notes	Jan. 17, 2013 11.50% senior secured notes due in 2017	Dec. 18, 2012 11.50% senior secured notes due in 2017	Mar. 31, 2013 11.50% senior secured notes due in 2017	Dec. 30, 2012 11.50% senior secured notes due in 2017	Dec. 30, 2012 11.50% senior secured notes due in 2017 item	Dec. 30, 2012 4.625% notes due in 2014	Feb. 28, 2013 4.625% notes due in 2014 Subsequent event	Dec. 30, 2012 5.750% notes due in 2017	Feb. 28, 2013 5.750% notes due in 2017 Subsequent event
LONG-TERM DEBT
Maximum borrowing capacity						$ 36,100,000	$ 125,000,000												$ 75,000,000	$ 50,000,000
Outstanding letters of credit								36,100,000
Variable rate basis													London Interbank Offered Rate			base rate
Basis spread on variable rate (as a percent)														2.75%	4.25%		1.75%	3.25%
Commitment fees for the unused revolving credit (as a percent)											0.50%	0.625%
Maximum consolidated leverage ratio									6.25	6.00
Minimum consolidated interest coverage ratio								1.50
Dividends restricted if consolidated leverage ratio is exceeded								5.25
Dividends restricted if priority leverage ratio exceeds								2.75
New borrowings																					910,000,000
Interest rate (as a percent)	11.50%																					9.00%				11.50%	11.50%	4.625%	4.625%	5.75%	5.75%
Net proceeds from offering																						889,000,000
Loss on extinguishment of debt	(4,400,000)	88,430,000	1,203,000	10,661,000																				94,500,000	9,600,000	94,500,000
Aggregate principal amount of debt redeemed																							83,600,000	762,400,000
Ownership percentage in each of the guarantor subsidiaries		100.00%
Amount of debt repurchased					$ 48,500,000																					$ 846,000,000	$ 846,000,000		$ 37,500,000		$ 11,000,000
Number of transactions to repurchase debt																											2
Repurchase price pursuant to cash tender offer																								110.34%