Debt (Narrative) (Details) (USD $)	12 Months Ended						12 Months Ended		12 Months Ended					0 Months Ended	12 Months Ended
	Dec. 31, 2011	Jan. 01, 2011	Jan. 02, 2010	Dec. 31, 2011 ABL Facility [Member] years	Jan. 01, 2011 ABL Facility [Member]	Aug. 17, 2010 ABL Facility [Member]	Dec. 31, 2011 8.125% Senior Notes Due In 2018 [Member] years	Jan. 01, 2011 8.125% Senior Notes Due In 2018 [Member]	Dec. 31, 2011 8.375% Senior Notes Due In 2017 [Member] years		Jan. 01, 2011 8.375% Senior Notes Due In 2017 [Member]		Nov. 13, 2009 8.375% Senior Notes Due In 2017 [Member]	Feb. 01, 2010 8% Senior Subordinated Notes Due In 2011 [Member]	Jan. 02, 2010 8% Senior Subordinated Notes Due In 2011 [Member]	Dec. 31, 2011 GE Obligation [Member]	Jan. 01, 2011 GE Obligation [Member]	Dec. 27, 2008 GE Obligation [Member]
Debt Instrument [Line Items]
Total debt	$ 608,000,000	$ 622,200,000			$ 7,900,000		$ 375,000,000	$ 375,000,000	$ 215,000,000	[1]	$ 215,000,000	[1]				$ 12,400,000	$ 16,500,000
Debt instrument maturity period							2018		2017
Common stock shares, issued	95,101,230	94,750,120		13,340,000
Common stock shares, issued value per share				$ 5.67
Credit facility, available barrowing capacity						275,000,000
Financing fees				5,400,000			8,600,000		5,100,000
Amortization period of financing fees (years)				4			8		8
Commitment fee, percentage				0.50%
Commitment fee, amount				265,300,000
Senior notes issued													215.0
Discount on notes issued									2,500,000		2,800,000		3,100,000
Repurchase of senior subordinated notes	6,000,000													11,100,000	257,800,000
Loss on buyback of senior subordinated notes		(100,000)	(1,500,000)											100,000	3,300,000
Finance lease arrangement																		32,500,000
Future minimum lease payments due in year one																		8,800,000
Future minimum lease payments due in year two																		8,800,000
Future minimum lease payments due in year three																		5,300,000
Future minimum lease payments due in year four																		5,300,000
Future minimum lease payments due in year five																1,700,000		1,700,000
Future minimum lease payments due thereafter																		1,700,000
Fixed charge coverage ratio				1.1
Minimum aggregate availability				$ 15,000,000

[1] Our 8.375% senior notes were issued at a discount of 1.425% on November 13, 2009.