Shareholders' Equity - Schedule Of Computation Of Weighted Average Number Of Shares Issued And Outstanding (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended										6 Months Ended	9 Months Ended		12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jul. 01, 2012	Apr. 01, 2012		Dec. 31, 2011		Oct. 02, 2011	Jul. 03, 2011	Apr. 03, 2011	Jul. 01, 2012	Sep. 30, 2012	Oct. 02, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Schedule of Weighted Average Number of Diluted Shares Outstanding [Line Items]
Net loss	$ (4,800)	$ 7,689	$ (43,302)	$ (242,100)	[1]	$ (21,600)	[2]	$ 700	$ (3,800)	$ (6,000)	$ (285,392)	$ (277,703)		$ (282,503)	$ (30,757)	$ (5,325)
Weighted-average shares outstanding - basic													60,098	60,324	60,098	61,364
Dilutive effect of nonvested restricted shares and stock options													0	0		0
Weighted-average shares outstanding - diluted													60,098	60,324	60,098	61,364
Basic earnings (loss)	$ (0.08)	$ 0.13	$ (0.72)	$ (4.03)	[1]	$ (0.36)	[2]	$ 0.01	$ (0.06)	$ (0.10)	$ (4.75)	$ (4.61)		$ (4.68)	$ (0.51)	$ (0.09)
Diluted earnings (loss) (in dollars per share)	$ (0.08)	$ 0.13	$ (0.72)	$ (4.03)	[1]	$ (0.36)	[2]	$ 0.01	$ (0.06)	$ (0.10)	$ (4.75)	$ (4.61)		$ (4.68)	$ (0.51)	$ (0.09)
Accumulated Deficit
Schedule of Weighted Average Number of Diluted Shares Outstanding [Line Items]
Net loss														$ (282,503)	$ (30,757)	$ (5,325)

[1] In the first quarter of 2012, we recognized expense of $206.9 million for a valuation allowance against a portion of our U.S. deferred tax assets.

[2] In the fourth quarter of 2011, we recorded an expense of $20.9 million for a valuation allowance against a portion of our U.S. deferred tax assets.