Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
Sep. 29, 2018	Sep. 30, 2017	Oct. 01, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 30,820	$ 28,801	$ 6,900
Net change in defined benefit pension plan	5,448	15,003	(7,104)
Net unrealized gain (loss) on cash flow hedges	0	13	(13)
Total other comprehensive income (loss), net of tax	5,448	15,016	(7,117)
Comprehensive income (loss)	$ 36,268	$ 43,817	$ (217)

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Amount after tax and reclassification adjustments, of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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