Accounts Receivable, Net, Percent, Increase (Decrease)

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- Definition

Contract With Customer, Asset, Increase (Decrease)

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- Definition

Contract With Customer, Asset, Percent, Increase (Decrease)

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- Definition

Contract With Customer, Liability, Increase (Decrease), Current

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- Definition

Contract With Customer, Liability, Increase (Decrease), Noncurrent

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- Definition

Contract With Customer, Liability, Percent, Increase (Decrease), Current

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Contract With Customer, Liability, Percent, Increase (Decrease), Noncurrent

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- Definition

Increase (Decrease) In Accounts Receivable, Net

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- Definition

Revenue From Contract With Customer, Excluding Assessed Tax, Percentage

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- Definition

Revenue From Contract With Customer, Excluding Assessed Tax, Percentage Of Licensing Revenues

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- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

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- Definition

Amount, after 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.

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- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as noncurrent.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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Revenue Recognition (Schedule of Disaggregation of Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 29, 2019	Mar. 30, 2018	Mar. 29, 2019	Mar. 30, 2018	Sep. 28, 2018
Revenue from External Customer [Line Items]
Revenue from contract with customer	$ 338,258	$ 299,722	$ 640,634	$ 599,249
Revenue from contract with customer, percent	100.00%	100.00%	100.00%	100.00%
Revenues	$ 338,258	$ 299,722	$ 640,634	$ 599,249
Accounts receivable, net	178,617		178,617		$ 166,133
Increase (decrease) in accounts receivable			$ 12,484
Increase (decrease) in accounts receivable, percent			8.00%
Contract assets	244,917		$ 244,917		165,959
Contract asset, increase (decrease)			$ 78,958
Contract asset, increase (decrease), percent			48.00%
Contract liabilities - current	20,014		$ 20,014		17,468
Contract liabilities - current, increase (decrease)			$ 2,546
Contract liabilities - current, increase (decrease), percent			15.00%
Contract liabilities - non-current	24,445		$ 24,445		$ 25,887
Contract liabilities - noncurrent, increase (decrease)			$ (1,442)
Contract liabilities - noncurrent, increase (decrease), percent			(6.00%)
United States
Revenue from External Customer [Line Items]
Revenue from contract with customer	$ 158,000	$ 122,280
Revenue from contract with customer, percent	47.00%	41.00%	43.00%	34.00%
Revenues			$ 277,799	$ 201,026
International
Revenue from External Customer [Line Items]
Revenue from contract with customer	$ 180,258	$ 177,442
Revenue from contract with customer, percent	53.00%	59.00%	57.00%	66.00%
International
Revenue from External Customer [Line Items]
Revenues			$ 362,835	$ 398,223
Licensing
Revenue from External Customer [Line Items]
Revenue from contract with customer	$ 310,308	$ 272,135	$ 570,587	$ 542,307
Revenue from contract with customer, percent	92.00%	91.00%	89.00%	90.00%
Revenue from contract with customer, licensing percent	100.00%	100.00%	100.00%	100.00%
Products and services
Revenue from External Customer [Line Items]
Revenue from contract with customer	$ 27,950	$ 27,587	$ 70,047	$ 56,942
Revenue from contract with customer, percent	8.00%	9.00%	11.00%	10.00%
Broadcast
Revenue from External Customer [Line Items]
Revenue from contract with customer	$ 122,424	$ 88,783	$ 222,562	$ 199,267
Revenue from contract with customer, licensing percent	39.00%	33.00%	39.00%	37.00%
PC
Revenue from External Customer [Line Items]
Revenue from contract with customer	$ 41,193	$ 43,905	$ 64,350	$ 64,256
Revenue from contract with customer, licensing percent	13.00%	16.00%	11.00%	12.00%
Mobile
Revenue from External Customer [Line Items]
Revenue from contract with customer	$ 66,759	$ 68,232	$ 100,932	$ 126,877
Revenue from contract with customer, licensing percent	22.00%	25.00%	18.00%	23.00%
CE
Revenue from External Customer [Line Items]
Revenue from contract with customer	$ 44,776	$ 37,980	$ 88,526	$ 75,710
Revenue from contract with customer, licensing percent	14.00%	14.00%	16.00%	14.00%
Other
Revenue from External Customer [Line Items]
Revenue from contract with customer	$ 35,156	$ 33,235	$ 94,217	$ 76,197
Revenue from contract with customer, licensing percent	12.00%	12.00%	16.00%	14.00%