Composition Of Certain Financial Statement Captions (Tables)

12 Months Ended

Sep. 24, 2021

Composition Of Certain Financial Statement Captions [Abstract]

Schedule Of Accounts Receivable

	September 24, 2021		September 25, 2020
Trade accounts receivable	$	160,112	$	147,618
Accounts receivable from patent administration program licensees	81,241		48,630
Contract assets	182,524		161,357
Accounts receivable, gross and contract assets, gross	423,877		357,605
Less: allowance for credit losses	(8,952)		(15,908)
Total accounts receivable and contract assets, net	$	414,925	$	341,697

Schedule Of Allowance For Doubtful Accounts

Allowance for Credit Losses	Beginning Balance		Charges/(Credits)   to G&A		Deductions		Ending Balance
For fiscal year ended:
September 27, 2019	$	5,258	$	4,523	$	(6)	$	9,775
September 25, 2020	9,775		7,689		(1,556)		15,908
September 24, 2021	15,908		(2,889)		(4,067)		8,952

Schedule Of Inventories

Inventories

	September 24, 2021		September 25, 2020
Raw materials	$	2,792	$	3,770
Work in process	3,461		9,214
Finished goods	4,712		12,566
Total inventories	$	10,965	$	25,550

Schedule Of Prepaid Expenses And Other Current Assets

	September 24, 2021		September 25, 2020
Prepaid expenses	$	29,964	$	17,884
Other current assets	32,773		35,138
Total prepaid expenses and other current assets	$	62,737	$	53,022

Schedule Of Accrued Liabilities

	September 24, 2021		September 25, 2020
Amounts payable to patent administration program partners	$	72,847	$	60,427
Accrued compensation and benefits	107,322		89,684
Accrued professional fees	11,737		10,344
Unpaid property, plant, and equipment additions	17,839		15,102
Accrued customer refunds	14,151		10,053
Accrued market development funds	7,777		6,612
Other accrued liabilities	31,055		27,752
Total accrued liabilities	$	262,728	$	219,974

Schedule Of Other Non-Current Liabilities

	September 24, 2021		September 25, 2020
Supplemental retirement plan obligations	$	4,877	$	4,181
Non-current tax liabilities (1)	85,063		85,943
Other liabilities	15,370		32,030
Total other non-current liabilities	$	105,310	$	122,154