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Commitments and Contingencies (Details) (USD $) | 12 Months Ended | 1 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Dec. 29, 2012 | Dec. 31, 2011 | Jan. 01, 2011 | May 31, 2012 MaxLinear item | Dec. 12, 2012 MaxLinear item | Aug. 06, 2012 MaxLinear item | May 13, 2012 MaxLinear item
Commitments and Contingencies |  |  |  |  |  |  |
Rent expense under operating leases | $ 4,400,000 | $ 4,500,000 | $ 5,000,000 |  |  |  |
Minimum annual future rentals |  |  |  |  |  |  |
2013 | 3,523,000 |  |  |  |  |  |
2014 | 2,521,000 |  |  |  |  |  |
2015 | 1,868,000 |  |  |  |  |  |
2016 | 1,866,000 |  |  |  |  |  |
2017 | 1,665,000 |  |  |  |  |  |
Thereafter | 2,035,000 |  |  |  |  |  |
Total minimum lease payments | $ 13,478,000 |  |  |  |  |  |
Patent Litigation |  |  |  |  |  |  |
Number of patents which plaintiff is seeking a declaratory judgment of no infringement |  |  |  |  |  |  | 19
Number of patents for which the entity filed claims |  |  |  | 6 |  |  |
Number of patents included in plaintiff's declaratory judgment of no infringement |  |  |  | 5 |  |  |
Number of patents which plaintiff is seeking a declaratory judgment of infringement |  |  |  |  |  | 3 |
Number of alleged patent infringements |  |  |  |  | 9 |  |

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- Definition Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 13 -Paragraph 16 -Subparagraph b(i) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 13 -Paragraph 122 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 3) -URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717 + Details
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