Revenue Recognition - Summary of Contract Assets and Liabilities (Details) - USD ($) $ in Thousands	9 Months Ended
	Jun. 25, 2021	Sep. 25, 2020
Revenue from Contract with Customer [Abstract]
Accounts receivable, net	$ 275,080	$ 180,340
Contract assets, net	166,584	161,357
Contract liabilities	18,201	15,436
Non-current contract liabilities	22,142	$ 24,342
Change ($)
Accounts receivable, net	94,740
Contract assets, net	5,227
Contract liabilities - current	2,765
Contract liabilities - non-current	$ (2,200)
Change (%)
Accounts receivable, net	53.00%
Contract assets, net	3.00%
Contract liabilities - current	18.00%
Contract liabilities - non-current	(9.00%)