Summary of Significant Accounting policies - Schedule of Estimated Useful Life (Detail)	12 Months Ended
	Oct. 02, 2020
Minimum | Buildings and improvements
Property Plant And Equipment Estimated Useful Lives [Line Items]
Estimated Useful Life (In Years)	20 years
Minimum | Computer equipment and software
Property Plant And Equipment Estimated Useful Lives [Line Items]
Estimated Useful Life (In Years)	2 years
Minimum | Furniture and fixtures
Property Plant And Equipment Estimated Useful Lives [Line Items]
Estimated Useful Life (In Years)	7 years
Minimum | Machinery and equipment
Property Plant And Equipment Estimated Useful Lives [Line Items]
Estimated Useful Life (In Years)	2 years
Maximum | Buildings and improvements
Property Plant And Equipment Estimated Useful Lives [Line Items]
Estimated Useful Life (In Years)	40 years
Maximum | Computer equipment and software
Property Plant And Equipment Estimated Useful Lives [Line Items]
Estimated Useful Life (In Years)	5 years
Maximum | Furniture and fixtures
Property Plant And Equipment Estimated Useful Lives [Line Items]
Estimated Useful Life (In Years)	10 years
Maximum | Machinery and equipment
Property Plant And Equipment Estimated Useful Lives [Line Items]
Estimated Useful Life (In Years)	7 years