EMPLOYEE BENEFITS (Pension Plan Assets Measured At Fair Value) (Details) - USD ($) $ in Thousands	Sep. 28, 2018	Sep. 29, 2017	Sep. 30, 2016
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets measured at fair value	$ 25,971	$ 20,802	$ 17,793
Level 1
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets measured at fair value	25,919	20,722
Level 2
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets measured at fair value	0	0
Level 3
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets measured at fair value	52	80	$ 113
Mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets measured at fair value	25,588	20,207
Mutual funds \| Level 1
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets measured at fair value	25,588	20,207
Mutual funds \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets measured at fair value	0	0
Mutual funds \| Level 3
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets measured at fair value	0	0
Money market funds
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets measured at fair value	331	515
Money market funds \| Level 1
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets measured at fair value	331	515
Money market funds \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets measured at fair value	0	0
Money market funds \| Level 3
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets measured at fair value	0	0
Group annuity contract
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets measured at fair value	52	80
Group annuity contract \| Level 1
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets measured at fair value	0	0
Group annuity contract \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets measured at fair value	0	0
Group annuity contract \| Level 3
Defined Benefit Plan Disclosure [Line Items]
Pension plan assets measured at fair value	$ 52	$ 80