Revenue Recognition - Summary of Contract Assets and Liabilities (Details) - USD ($) $ in Thousands	9 Months Ended
	Jun. 26, 2020	Sep. 27, 2019
Revenue from Contract with Customer [Abstract]
Accounts Receivable, Net, Current	$ 247,486	$ 189,115
Contract assets	128,319	195,651
Contract liabilities	18,025	19,991
Non-current contract liabilities	24,128	$ 24,404
Change ($)
Accounts receivable, net	58,371
Contract assets	(67,332)
Contract liabilities - current	(1,966)
Contract liabilities - non-current	$ (276)
Change (%)
Accounts receivable, net	31.00%
Contract assets	(34.00%)
Contract liabilities - current	(10.00%)
Contract liabilities - non-current	(1.00%)