Income (Loss) Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 29, 2012	Oct. 01, 2011	Sep. 29, 2012	Oct. 01, 2011
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount			25,066,150	5,731,478
Income (Loss) per Share - Basic [Abstract]
Income (loss) from continuing operations	$ 4,658	$ 1,274	$ (17,888)	$ 735
Income (loss) from discontinued operations, net of taxes	(183)	1,531	(5,256)	5,228
Net income (loss)	4,475	2,805	(23,144)	5,963
Income (Loss) per Share - Diluted [Abstract]
Income (loss) from continuing operations	4,658	1,274	(17,888)	735
Income (loss) from discontinued operations, net of taxes	(183)	1,531	(5,256)	5,228
Net income for diluted income (loss) per share after assumed conversions of dilutive shares	5,495	2,805	(23,144)	5,963
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Basic shares	63,624,000	63,068,000	63,502,000	62,891,000
Dilutive effect of convertible notes	20,831,000	0	0	0
Dilutive effect of equity awards	89,000	129,000	0	266,000
Diluted shares	84,544,000	63,197,000	63,502,000	63,157,000
Income (loss) per share - basic: [Abstract]
Continuing operations per share - basic	$ 0.07	$ 0.02	$ (0.28)	$ 0.01
Discontinued operations per share - basic	$ 0.00	$ 0.02	$ (0.08)	$ 0.08
Net income (loss) per share - basic	$ 0.07	$ 0.04	$ (0.36)	$ 0.09
Income (loss) per share - diluted: [Abstract]
Continuing operations per share - diluted	$ 0.06	$ 0.02	$ (0.28)	$ 0.01
Discontinued operations per share - diluted	$ 0.00	$ 0.02	$ (0.08)	$ 0.08
Net income (loss) per share - diluted	$ 0.06	$ 0.04	$ (0.36)	$ 0.09
Segment, Continuing Operations [Member]
Income (Loss) per Share - Diluted [Abstract]
Interst expense and financing costs on convertible notes, net of taxes	1,020	0	0	0
Net income for diluted income (loss) per share after assumed conversions of dilutive shares	5,678	1,274	(17,888)	735
Segment, Discontinued Operations [Member]
Income (Loss) per Share - Diluted [Abstract]
Net income for diluted income (loss) per share after assumed conversions of dilutive shares	$ (183)	$ 1,531	$ (5,256)	$ 5,228

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Emerging Issues Task Force (EITF)

-Number 07-4

-Paragraph 4

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Diluted Earnings Per Share

-URI http://asc.fasb.org/extlink&oid=6510752

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Contingent Stock Agreement

-URI http://asc.fasb.org/extlink&oid=6508534

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Antidilution

-URI http://asc.fasb.org/extlink&oid=6505113

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 128

-Paragraph 171

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Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 128

-Paragraph 40

-Subparagraph c

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Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-Publisher FASB

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