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Employee Stock Purchase and Stock Option Plans (Tables) | 12 Months Ended
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Sep. 28, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Employee Stock Ownership Plan (ESOP) Disclosures | The following table summarizes the stock issuance activity under the 1989 ESPP and the GESPP for the fiscal years ended September 28, 2018, September 29, 2017 and September 30, 2016:
| For the Years Ended
| September 28, 2018 |  | September 29, 2017 |  | September 30, 2016
Aggregate Purchase Price Paid for Shares Sold: |  |  |  |  |  |  |  |
Under the 1989 ESPP | $ | 21,590,858 |  |  | $ | 21,084,657 |  |  | $ | 23,631,241 |
Under the GESPP | 2,240,609 |  |  | 2,105,834 |  |  | 2,660,067 |
Total | $ | 23,831,467 |  |  | $ | 23,190,491 |  |  | $ | 26,291,308 |
Aggregate Number of Shares Sold: |  |  |  |  |  |  |  |
Under the 1989 ESPP | 357,899 |  |  | 403,652 |  |  | 564,461 |
Under the GESPP | 36,405 |  |  | 39,648 |  |  | 63,196 |
Total | 394,304 |  |  | 443,300 |  |  | 627,657 |
Stock-based Compensation Expense by Type of Award | The following table presents the number and weighted average grant-date fair value of restricted stock and restricted stock units at September 28, 2018:
Number of unvested Restricted Stock and Restricted Stock Units: | Number of Shares |  | Weighted Average Grant-Date Fair Value
Outstanding at September 29, 2017 | 2,514,387 |  |  | $ | 49.62 |
Granted | 1,364,128 |  |  | $ | 65.64 |
Vested | (1,209,322 | ) |  | $ | 55.19 |
Cancelled | (339,658 | ) |  | $ | 49.57 |
Outstanding at September 28, 2018 | 2,329,535 |  |  | $ | 56.11 |
The following table sets forth certain information about the 1999 Plans:
| 1999 SIP |  | 1999 ODSP |  | Total
Number of shares authorized | 29,850,000 |  |  | 1,100,000 |  |  | 30,950,000 |
Number of remaining shares reserved for issuance at September 28, 2018 | 6,911,375 |  |  | 486,755 |  |  | 7,398,130 |
Number of shares relating to outstanding stock options at September 28, 2018 | 1,575,634 |  |  | 191,125 |  |  | 1,766,759 |
Number of shares available for future awards: |  |  |  |  |  |  |
At September 28, 2018 | 5,335,741 |  |  | 295,630 |  |  | 5,631,371 |
At September 29, 2017 | 7,351,946 |  |  | 312,412 |  |  | 7,664,358 |
Share-based Compensation Arrangements by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding | The following table presents the fair value of shares (of restricted stock and restricted stock units) vested for the years ended September 28, 2018, September 29, 2017 and September 30, 2016 (in thousands):
| For the Years Ended
| September 28, 2018 |  | September 29, 2017 |  | September 30, 2016
Restricted Stock and Restricted Stock Units (service condition) | $ | 64,121 |  |  | $ | 34,466 |  |  | $ | 17,481 |
Restricted Stock Units (service, market, and performance conditions at target) | 2,626 |  |  | 4,183 |  |  | 4,336 |
Total | $ | 66,747 |  |  | $ | 38,649 |  |  | $ | 21,817 |
Share-based Compensation, Stock Options, Activity | The following table summarizes the stock option activity for the years ended September 28, 2018, September 29, 2017 and September 30, 2016:
| Number of Stock Options |  | Weighted Average Exercise Price
Outstanding at October 2, 2015 | 4,072,707 |  |  | $ | 46.06 |
Granted | 460,770 |  |  | $ | 42.17 |
Exercised | (412,416 | ) |  | $ | 40.88 |
Cancelled or expired | (543,549 | ) |  | $ | 49.13 |
Outstanding at September 30, 2016 | 3,577,512 |  |  | $ | 45.69 |
Granted | — |  |  | $ | — |
Exercised | (906,648 | ) |  | $ | 43.79 |
Cancelled or expired | (154,039 | ) |  | $ | 48.79 |
Outstanding at September 29, 2017 | 2,516,825 |  |  | $ | 46.19 |
Granted | — |  |  | $ | — |
Exercised | (636,019 | ) |  | $ | 46.93 |
Cancelled or expired | (114,047 | ) |  | $ | 52.26 |
Outstanding at September 28, 2018 | 1,766,759 |  |  | $ | 45.53 |
Schedule Of Intrinsic Value Of Options | The following table presents the total intrinsic value of stock options exercised for the fiscal years ended September 28, 2018, September 29, 2017 and September 30, 2016 (in thousands):
For the Years Ended
September 28, 2018 |  | September 29, 2017 |  | September 30, 2016
$13,931 |  | $14,713 |  | $4,149
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range | The following table presents certain other information regarding our 1999 SIP and 1999 OSDP for the fiscal years ended September 28, 2018, September 29, 2017 and September 30, 2016:
| September 28, 2018 |  | September 29, 2017 |  | September 30, 2016
At fiscal year end: |  |  |  |  |  |  |  |
Range of exercise prices for options outstanding | $32.51–$60.43 |  |  | $32.51–$80.63 |  |  | $32.51–$80.63 |
Number of options exercisable | 1,557,900 |  |  | 1,992,022 |  |  | 2,581,421 |
For the fiscal year: |  |  |  |  |  |  |  |
Range of prices relating to options exercised | $35.93–$61.26 |  |  | $37.03–$55.53 |  |  | $36.88–$55.00 |
Estimated weighted average fair values of options granted | $ | — |  |  | $ | — |  |  | $ | 12.80 |
Schedule Of Information Options Outstanding And Exercisable | The following table presents certain information regarding stock options outstanding and stock options exercisable at September 28, 2018:
| September 28, 2018
| Options Outstanding |  | Options Exercisable
Range of Exercise Prices | Number |  | Weighted Average Remaining Contractual Life (years) |  | Weighted Average Price |  | Number |  | Weighted Average Exercise Price
$32.51 - $37.03 | 153,000 |  |  | 3.49 |  | $ | 37.01 |  |  | 153,000 |  |  | $ | 37.01 |
$37.43 - $46.09 | 1,059,647 |  |  | 4.87 |  | $ | 42.69 |  |  | 850,788 |  |  | $ | 42.74 |
$47.11 - $55.13 | 513,237 |  |  | 4.48 |  | $ | 52.74 |  |  | 513,237 |  |  | $ | 52.74 |
$60.08 - $80.63 | 40,875 |  |  | 5.25 |  | $ | 60.33 |  |  | 40,875 |  |  | $ | 60.33 |
| 1,766,759 |  |  | 4.65 |  | $ | 45.53 |  |  | 1,557,900 |  |  | $ | 45.93 |
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity | The following table provides the number of shares of restricted stock and restricted stock units outstanding at September 28, 2018 under the 1999 ODSP:
| September 28, 2018
Restricted stock | 34,000 |
Restricted stock units (service condition) | 91,092 |
The following table presents the number of shares of restricted stock and restricted stock units issued as common stock under the 1999 SIP for the years ended September 28, 2018, September 29, 2017 and September 30, 2016:
| For the Years Ended
| September 28, 2018 |  | September 29, 2017 |  | September 30, 2016
Restricted stock | — |  |  | — |  |  | 597,091 |
Restricted stock units (service condition) | 1,087,724 |  |  | 496,951 |  |  | 183,131 |
Restricted stock units (service, market and performance conditions) | 254,784 |  |  | 237,058 |  |  | 372,794 |
The following table presents the number of shares of restricted stock and restricted stock units issued under the 1999 ODSP for the years ended September 28, 2018, September 29, 2017 and September 30, 2016:
| For the Years Ended
| September 28, 2018 |  | September 29, 2017 |  | September 30, 2016
Restricted stock units (service condition) | 21,620 |  |  | 21,123 |  |  | 23,090 |
The following table presents the number of shares of restricted stock and restricted stock units canceled and withheld for taxes under the 1999 SIP for the years ended September 28, 2018, September 29, 2017 and September 30, 2016:
| For the Years Ended
| September 28, 2018 |  | September 29, 2017 |  | September 30, 2016
Restricted stock | 284,254 |  |  | 365,481 |  |  | 512,903 |
Restricted stock units (service condition) | 336,516 |  |  | 128,536 |  |  | 177,640 |
Restricted stock units (service, market and performance conditions) | 95,063 |  |  | 86,742 |  |  | 275,933 |
The following table provides the number of shares of restricted stock and restricted stock units outstanding at September 28, 2018 under the 1999 SIP. Shares granted in the table below are granted on a 1.92-to-1.00 basis (fungible):
| September 28, 2018
| Total
Restricted stock | 337,805 |
Restricted stock units (service condition) | 1,131,200 |
Restricted stock units (service, market and performance conditions) | 735,438 |

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- Definition Tabular disclosure of components of a stock option or other award plan under which equity-based compensation is awarded to employees, typically comprised of the amount of unearned compensation (deferred compensation cost), compensation expense, and changes in the quantity and fair value of the shares (or other type of equity) granted, exercised, forfeited, and issued and outstanding pertaining to that plan. Disclosure may also include nature and general terms of such arrangements that existed during the period and potential effects of those arrangements on shareholders, effect of compensation cost arising from equity-based payment arrangements on the income statement, method of estimating the fair value of the goods or services received, or the fair value of the equity instruments granted, during the period, cash flow effects resulting from equity-based payment arrangements and, for registrants that accelerate vesting of out of the money share options, reasons for the decision to accelerate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5047-113901 + Details
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- Definition Tabular disclosure of number, weighted-average exercise price or conversion ratio, aggregate intrinsic value, and weighted-average remaining contractual term for outstanding options that are fully vested and expected to vest. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. + 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=96867065&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + 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 (d) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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