Net Income Per Share (Details 1) In Thousands	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended
Jul. 02, 2011	Jul. 03, 2010	Jul. 02, 2011	Jul. 03, 2010	Jul. 02, 2011 2015 Warrants (various expiration dates through 2015) [Member]	Jul. 03, 2010 2015 Warrants (various expiration dates through 2015) [Member]	Jul. 02, 2011 2015 Warrants (various expiration dates through 2015) [Member]	Jul. 03, 2010 2015 Warrants (various expiration dates through 2015) [Member]	Jul. 02, 2011 Stock Options [Member]	Jul. 03, 2010 Stock Options [Member]	Jul. 02, 2011 Stock Options [Member]	Jul. 03, 2010 Stock Options [Member]	Jun. 02, 2011 Restricted Stock [Member]	Jul. 03, 2010 Restricted Stock [Member]	Jul. 02, 2011 Restricted Stock [Member]	Jul. 03, 2010 Restricted Stock [Member]	Jul. 02, 2011 Convertible Senior Notes Warrants (various expiration dates through 2014) [Member]	Jul. 03, 2010 Convertible Senior Notes Warrants (various expiration dates through 2014) [Member]	Jul. 02, 2011 Convertible Senior Notes Warrants (various expiration dates through 2014) [Member]	Jul. 03, 2010 Convertible Senior Notes Warrants (various expiration dates through 2014) [Member]
Potential shares of Cadence's common stock excluded
Total potential common shares excluded	79,387	84,931	79,155	87,467	46,382	46,382	46,382	46,382	18,812	22,209	18,564	23,441	9	2,156	25	3,460	14,184	14,184	14,184	14,184

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 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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

Reference 3: 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 4: 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 5: 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 6: 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 7: 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 8: 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

+ Details