Derivative Financial Instruments - General Information (Details)	3 Months Ended	12 Months Ended
	Dec. 29, 2013 agreement	Oct. 01, 2017 USD ($) instrument	Oct. 02, 2016 USD ($) instrument	Sep. 29, 2013 agreement	Sep. 27, 2015 instrument
Not designated as hedging instruments
Derivative financial instruments
Number of derivative instruments | instrument		0	0		0
Foreign currency forward contracts and interest rate swap agreements | Derivatives designated as hedging instruments
Derivative financial instruments
Ineffective portion of derivative instruments		$ 0	$ 0
Amounts excluded from effectiveness testing		0	0
Interest rate swap agreements | Designated as cash flow hedges | Derivatives designated as hedging instruments
Derivative financial instruments
Number of derivative agreements | agreement	2			3
Amount of effective portion of derivatives before tax effect		$ (50,000)	1,600,000
Period of reclassification from accumulated other comprehensive income to interest expense		12 months
Amount expected to be reclassified from accumulated other comprehensive income to interest expense		$ (50,000)	$ 1,600,000
Interest rate swap agreement bearing fixed rate 1.36% | Designated as cash flow hedges | Derivatives designated as hedging instruments
Derivative financial instruments
Notional Amount		$ 40,359,000
Fixed Rate (as a percent)		1.36%
Interest rate swap agreement bearing fixed rate 1.34% | Designated as cash flow hedges | Derivatives designated as hedging instruments
Derivative financial instruments
Notional Amount		$ 40,359,000
Fixed Rate (as a percent)		1.34%
Interest rate swap agreement bearing fixed rate 1.35% | Designated as cash flow hedges | Derivatives designated as hedging instruments
Derivative financial instruments
Notional Amount		$ 40,359,000
Fixed Rate (as a percent)		1.35%
Interest rate swap agreement bearing fixed rate 1.23% | Designated as cash flow hedges | Derivatives designated as hedging instruments
Derivative financial instruments
Notional Amount		$ 20,180,000
Fixed Rate (as a percent)		1.23%
Interest rate swap agreement bearing fixed rate 1.24% | Designated as cash flow hedges | Derivatives designated as hedging instruments
Derivative financial instruments
Notional Amount		$ 20,180,000
Fixed Rate (as a percent)		1.24%