Other Comprehensive Income (Details) - Reclassification out of Accumulated Other Comprehensive Income - Accumulated Defined Benefit Plans Adjustment - USD ($) $ in Thousands	3 Months Ended
Dec. 29, 2017	Dec. 30, 2016
Amortization of Defined Benefit Items:
Actuarial losses	$ 3,596	$ (3,556)
Prior service cost		77
Total Before Income Tax	3,596	(3,479)
Income Tax Benefit	(125)	803
Total reclassifications, after-tax	$ 3,471	$ (2,676)

Amount, before tax, of reclassification adjustment from accumulated other comprehensive (income) loss for prior service cost (credit) of defined benefit plan.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount, before tax, of reclassification adjustment from accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan.

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