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v3.23.3

Stock-Based Compensation - Stock Option Awards, Additional Information (Details) | 12 Months Ended
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Sep. 30, 2023 USD ($) installment $ / shares | Sep. 24, 2022 USD ($) $ / shares | Sep. 25, 2021 USD ($) $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of vesting installments | installment | 3 |  |
Dividend during expected term | $ 0 |  |
Time-Based Stock Option |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Exercise price percentage above market price | 0.15 |  |
Expected life of option award (in years) | 10 years |  |
Stock Options |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Expected life of option award (in years) | 8 years | 3 years 8 months 12 days | 3 years 8 months 12 days
Dividend during expected term | $ 0 | $ 0 | $ 0
Stock price volatility (percent) | 30.60% | 31.10% | 32.40%
Risk free interest rate | 3.60% | 1.70% | 0.50%
Weighted average grant date fair value of options granted (in usd per share) | $ / shares | $ 15.37 | $ 10.96 | $ 10.50
Total intrinsic value of options exercised | $ 3,900,000 | $ 6,100,000 | $ 15,100,000
Total unrecognized compensation cost | $ 2,800,000 |  |
Weighted average vesting period (in years) | 2 years |  |
Stock Options | Minimum |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Outstanding options to purchase common stock (in usd per share) | $ / shares | $ 25.79 | $ 21.37 | $ 13.82
Stock Options | Maximum |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Outstanding options to purchase common stock (in usd per share) | $ / shares | $ 51.37 | $ 51.37 | $ 51.37
Restricted Stock Awards |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Total unrecognized compensation cost | $ 31,000,000 |  |
Weighted average vesting period (in years) | 3 years |  |
Selling, General and Administrative Expenses |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Stock-based compensation expense | $ 28,000,000 | $ 25,800,000 | $ 23,100,000
Selling, General and Administrative Expenses | Stock Options |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Stock-based compensation expense | 3,800,000 | 4,900,000 | 5,600,000
Selling, General and Administrative Expenses | Restricted Stock Awards |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Stock-based compensation expense | 16,300,000 | 13,700,000 | 10,700,000
Selling, General and Administrative Expenses | 401 (K) |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Stock-based compensation expense | $ 7,900,000 | $ 7,200,000 | $ 6,800,000

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- Definition The estimated amount of dividends to be paid to holders of the underlying shares (expected dividends) over the option's term. Dividends are taken into account because payment of dividends to shareholders reduces the fair value of the underlying shares, and option holders generally do not receive dividends. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iii) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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