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Stock Options Plans and Stock-Based Compensation (Details 2) - $ / shares |  | 12 Months Ended
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Oct. 02, 2012 | Jan. 02, 2016
Summary of information about stock options outstanding |  |
Range of Exercise Price, Minimum | $ 2.55 | $ 3.54
Range of Exercise Price, Maximum | $ 4.81 | $ 43.35
Number Outstanding |  | 1,287,550
Options Outstanding Weighted Average Remaining Contractual Life |  | 4 years
Weighted Average Exercise Price |  | $ 26.73
Number Exercisable |  | 768,184
Weighted Average Exercise Price |  | $ 23.18
Range of Exercise Prices One [Member] |  |
Summary of information about stock options outstanding |  |
Range of Exercise Price, Minimum |  | 3.54
Range of Exercise Price, Maximum |  | $ 13.46
Number Outstanding |  | 81,723
Options Outstanding Weighted Average Remaining Contractual Life |  | 2 years 10 months 17 days
Weighted Average Exercise Price |  | $ 7.97
Number Exercisable |  | 78,713
Weighted Average Exercise Price |  | $ 8.09
Range of Exercise Prices Two [Member] |  |
Summary of information about stock options outstanding |  |
Range of Exercise Price, Minimum |  | 14.52
Range of Exercise Price, Maximum |  | $ 14.52
Number Outstanding |  | 144,017
Options Outstanding Weighted Average Remaining Contractual Life |  | 1 year 3 months
Weighted Average Exercise Price |  | $ 14.52
Number Exercisable |  | 144,017
Weighted Average Exercise Price |  | $ 14.52
Range of Exercise Prices Three [Member] |  |
Summary of information about stock options outstanding |  |
Range of Exercise Price, Minimum |  | 17.7
Range of Exercise Price, Maximum |  | $ 21.23
Number Outstanding |  | 82,171
Options Outstanding Weighted Average Remaining Contractual Life |  | 1 year 7 months 10 days
Weighted Average Exercise Price |  | $ 18.44
Number Exercisable |  | 73,194
Weighted Average Exercise Price |  | $ 18.41
Range of Exercise Prices Four [Member] |  |
Summary of information about stock options outstanding |  |
Range of Exercise Price, Minimum |  | 22.86
Range of Exercise Price, Maximum |  | $ 22.86
Number Outstanding |  | 166,757
Options Outstanding Weighted Average Remaining Contractual Life |  | 4 years 1 month 5 days
Weighted Average Exercise Price |  | $ 22.86
Number Exercisable |  | 112,252
Weighted Average Exercise Price |  | $ 22.86
Range of Exercise Prices Five [Member] |  |
Summary of information about stock options outstanding |  |
Range of Exercise Price, Minimum |  | 24.53
Range of Exercise Price, Maximum |  | $ 26.59
Number Outstanding |  | 167,468
Options Outstanding Weighted Average Remaining Contractual Life |  | 2 years 10 months 5 days
Weighted Average Exercise Price |  | $ 25.75
Number Exercisable |  | 153,635
Weighted Average Exercise Price |  | $ 25.71
Range of Exercise Prices Six [Member] |  |
Summary of information about stock options outstanding |  |
Range of Exercise Price, Minimum |  | 29.60
Range of Exercise Price, Maximum |  | $ 32.38
Number Outstanding |  | 162,225
Options Outstanding Weighted Average Remaining Contractual Life |  | 6 years 6 months 5 days
Weighted Average Exercise Price |  | $ 31.04
Number Exercisable |  | 1,500
Weighted Average Exercise Price |  | $ 31.22
Range of Exercise Prices Seven [Member] |  |
Summary of information about stock options outstanding |  |
Range of Exercise Price, Minimum |  | 33.29
Range of Exercise Price, Maximum |  | $ 33.48
Number Outstanding |  | 159,940
Options Outstanding Weighted Average Remaining Contractual Life |  | 3 years 3 months 7 days
Weighted Average Exercise Price |  | $ 33.42
Number Exercisable |  | 125,453
Weighted Average Exercise Price |  | $ 33.46
Range of Exercise Prices Eight [Member] |  |
Summary of information about stock options outstanding |  |
Range of Exercise Price, Minimum |  | 33.72
Range of Exercise Price, Maximum |  | $ 34.3
Number Outstanding |  | 168,599
Options Outstanding Weighted Average Remaining Contractual Life |  | 6 years 2 months 28 days
Weighted Average Exercise Price |  | $ 34.13
Number Exercisable |  | 12,671
Weighted Average Exercise Price |  | $ 33.72
Range of Exercise Prices Nine [Member] |  |
Summary of information about stock options outstanding |  |
Range of Exercise Price, Minimum |  | 34.67
Range of Exercise Price, Maximum |  | $ 37.08
Number Outstanding |  | 107,648
Options Outstanding Weighted Average Remaining Contractual Life |  | 5 years 4 months 3 days
Weighted Average Exercise Price |  | $ 35.83
Number Exercisable |  | 44,991
Weighted Average Exercise Price |  | $ 35.66
Range of Exercise Prices Ten [Member] |  |
Summary of information about stock options outstanding |  |
Range of Exercise Price, Minimum |  | 43.35
Range of Exercise Price, Maximum |  | $ 43.35
Number Outstanding |  | 47,002
Options Outstanding Weighted Average Remaining Contractual Life |  | 4 years 11 months 12 days
Weighted Average Exercise Price |  | $ 43.35
Number Exercisable |  | 21,758
Weighted Average Exercise Price |  | $ 43.35

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- Definition The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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