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Composition Of Certain Financial Statement Captions (Schedule Of Accounts Receivable) (Details) - USD ($) $ in Thousands	Dec. 29, 2023	Sep. 29, 2023
Composition Of Certain Financial Statement Captions [Abstract]
Trade accounts receivable	$ 111,027	$ 137,820
Accounts receivable from patent administration program licensees	189,629	134,108
Contract assets	217,667	182,268
Accounts receivable and contract assets, gross	518,323	454,196
Less: allowance for credit losses on accounts receivable and contract assets	(7,536)	(9,821)
Total accounts receivable and contract assets, net	$ 510,787	$ 444,375

X

- Definition

Accounts Receivable And Contract With Customer, Asset, After Allowance For Credit Loss, Current

+ References

No definition available.

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X

- Definition

Accounts Receivable And Contract With Customer, Asset, Allowance For Credit Loss, Current

+ References

No definition available.

+ Details

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X

- Definition

Accounts Receivable Related To Patent Administration Program

+ References

No definition available.

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- Definition

Composition Of Certain Financial Statement Captions [Abstract]

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- Definition

Trade Accounts Receivable

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X

- 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
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-Publisher FASB
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Reference 3: 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Topic 606
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