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Capital Lease and Financing Obligations (Details) $ in Millions	Dec. 28, 2016 agreement	Sep. 27, 2019 USD ($)	Sep. 28, 2018 USD ($)
Capital Leased Assets [Line Items]
Number of agreements | agreement	3
100 Chelmsford Street
Capital Leased Assets [Line Items]
Lease term	20 years
144 Chelmsford Street Lease
Capital Leased Assets [Line Items]
Lease term	20 years
121 Hale Street
Capital Leased Assets [Line Items]
Lease term	14 years
Corporate Facility Leases
Capital Leased Assets [Line Items]
Lease term	20 years
Financing obligations associated with leased facility		$ 28.2	$ 28.3
FiBest and Bin Optics
Capital Leased Assets [Line Items]
Financing obligations associated with leased facility		$ 2.3	$ 1.2
Discount rate
Capital Leased Assets [Line Items]
Discount rate		0.072

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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