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Stock-Based Compensation (Tables) | 3 Months Ended
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Dec. 31, 2022
Stock-Based Compensation |
Schedule of stock-based compensation expense recognized | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended
​ | ​ | December 31, | ​ | January 1,
​ |  | 2022 |  | 2022
​ | ​ | (In thousands)
Cost of sales | ​ | $ | 4,242 | ​ | $ | 3,783
Selling, general and administrative | ​ |  | 7,142 | ​ |  | 5,135
Research and development | ​ |  | 225 | ​ |  | 114
Total | ​ | $ | 11,609 | ​ | $ | 9,032
​
Schedule of activity with respect to the Company's restricted stock units and PSU | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | Weighted- | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | Average | ​ | ​
​ | ​ | ​ | ​ | Weighted- | ​ | Remaining | ​ | Aggregate
​ | ​ | ​ | ​ | Average Grant Date | ​ | Contractual | ​ | Intrinsic
​ | ​ | Number of | ​ | Fair Value | ​ | Term | ​ | Value
​ |  | Shares |  | ($) |  | (Years) |  | ($)
​ | ​ | (In thousands) | ​ | ​ | ​ | ​ | ​ | (In thousands)
Outstanding as of October 1, 2022 |  | 3,280 | ​ | 37.11 |  | 1.35 |  | 155,049
Granted |  | 510 |  | 60.21 |  |  |  |
Vested/Forfeited/Cancelled |  | (367) |  | 34.53 |  |  |  |
Outstanding as of December 31, 2022 |  | 3,423 |  | 40.83 |  | 1.42 |  | 200,548
Expected to vest as of December 31, 2022 |  | 2,998 |  | 40.28 |  | 1.34 |  | 175,594
​

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- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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