Summary of Stock Option Activity (Detail) (USD $)	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Share
Balance at beginning of year, Shares	4,816,552	4,313,290	3,249,773
Options granted, Shares	2,087,453	1,457,280	2,060,246
Options exercised, Shares	(212,441)	(405,988)	(408,519)
Options forfeited and expired, Shares	(1,478,826)	(548,030)	(588,210)
Balance at end of year, shares	5,212,738	4,816,552	4,313,290
Exercisable at end of year, Shares	2,043,625	2,122,136	1,301,257
Weighted average fair value of options granted (Black-Scholes)	$ 3.27	$ 7.07	$ 8.08
Wtd. Avg. Ex. Price
Balance at beginning of year, Weighted Average Exercise Price	$ 16.86	$ 16.52	$ 15.14
Options granted, Weighted Average Exercise Price	$ 5.72	$ 13.33	$ 16.24
Options exercised, Weighted Average Exercise Price	$ 4.84	$ 4.80	$ 4.80
Options forfeited and expired, Weighted Average Exercise Price	$ 25.03	$ 13.80	$ 16.02
Balance at end of year, Weighted Average Exercise Price	$ 10.57	$ 16.86	$ 16.52