Composition Of Certain Financial Statement Captions (Schedule Of Accounts Receivable) (Details) - USD ($) $ in Thousands |
Jun. 26, 2026 |
Sep. 26, 2025 |
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| Composition Of Certain Financial Statement Captions [Abstract] | ||
| Trade accounts receivable | $ 151,489 | $ 186,221 |
| Accounts receivable from patent administration program licensees | 143,252 | 152,096 |
| Contract assets | 206,975 | 180,905 |
| Accounts receivable and contract assets, gross | 501,716 | 519,222 |
| Less: allowance for credit losses on accounts receivable and contract assets | (9,687) | (7,322) |
| Total accounts receivable and contract assets, net | $ 492,029 | $ 511,900 |
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- Definition Accounts Receivable And Contract With Customer, Asset, After Allowance For Credit Loss, Current No definition available.
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- Definition Accounts Receivable And Contract With Customer, Asset, Allowance For Credit Loss, Current No definition available.
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- Definition Accounts Receivable Related To Patent Administration Program No definition available.
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- Definition Composition Of Certain Financial Statement Captions [Abstract] No definition available.
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- Definition Trade Accounts Receivable No definition available.
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- Definition Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, before allowance for credit loss, of right to consideration in exchange for good or service transferred to customer, when right is conditioned on something other than passage of time. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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