Income (Loss) Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
Earnings Per Share [Line Items]
Income/(loss) from continuing operations	$ 10,491	$ 3,022	$ (28,995)	$ (23,139)
Income/(loss) from discontinued operations, net of taxes	13,492	1,453	14,950	(5)
Net income/(loss)	23,983	4,475	(14,045)	(23,144)
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount			24,041,047	25,066,150
Income (Loss) per Share - Diluted [Abstract]
Income/(loss) from continuing operations	10,491	3,022	(28,995)	(23,139)
Income/(loss) from discontinued operations, net of taxes	13,492	1,453	14,950	(5)
Net income for diluted income (loss) per share after assumed conversions of dilutive shares	25,003	5,495	(14,045)	(23,144)
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Basic shares	64,333,000	63,624,000	64,032,000	63,502,000
Dilutive effect of convertible notes	20,831,000	20,831,000	0	0
Dilutive effect of equity awards	868,000	89,000	0	0
Diluted shares	86,032,000	84,544,000	64,032,000	63,502,000
Income/(loss) per share – basic:
Income (Loss) from Continuing Operations, Per Basic Share	$ 0.16	$ 0.05	$ (0.45)	$ (0.36)
Discontinued operations per share - basic	$ 0.21	$ 0.02	$ 0.23	$ 0.00
Net income (loss) per share - basic	$ 0.37	$ 0.07	$ (0.22)	$ (0.36)
Income/(loss) per share – diluted:
Income (Loss) from Continuing Operations, Per Diluted Share	$ 0.13	$ 0.04	$ (0.45)	$ (0.36)
Discontinued operations per share - diluted	$ 0.16	$ 0.02	$ 0.23	$ 0.00
Net income (loss) per share - diluted	$ 0.29	$ 0.06	$ (0.22)	$ (0.36)
Segment, Continuing Operations [Member]
Income (Loss) per Share - Diluted [Abstract]
Interst expense and financing costs on convertible notes, net of taxes	1,020	1,020
Net income for diluted income (loss) per share after assumed conversions of dilutive shares	11,511	4,042	(28,995)	(23,139)
Segment, Discontinued Operations [Member]
Income (Loss) per Share - Diluted [Abstract]
Net income for diluted income (loss) per share after assumed conversions of dilutive shares	$ 13,492	$ 1,453	$ 14,950	$ (5)

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 Accounting Standards Codification

-Glossary Antidilution

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

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

-Topic 260

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 128

-Paragraph 40

-Subparagraph c

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 128

-Paragraph 13, 14

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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

-Publisher FASB

-Name Emerging Issues Task Force (EITF)

-Number 07-4

-Paragraph 4

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 128

-Paragraph 171

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.