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ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Changes by Component) (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 29, 2017	Dec. 30, 2016
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 243,004
Other comprehensive income (loss) before reclassifications	(276)	$ (3,747)
Amounts reclassified from accumulated other comprehensive income	183	142
Tax effects	(44)	(54)
Ending balance	241,946	206,836
Foreign Currency Translation Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	11,179	10,525
Other comprehensive income (loss) before reclassifications	(276)	(3,747)
Amounts reclassified from accumulated other comprehensive income	0	0
Tax effects	0	0
Ending balance	10,903	6,778
Unamortized Loss on Defined Benefit Pension Plans
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(6,186)	(8,171)
Other comprehensive income (loss) before reclassifications	0	0
Amounts reclassified from accumulated other comprehensive income	183	142
Tax effects	(44)	(54)
Ending balance	(6,047)	(8,083)
Accumulated Other Comprehensive Income (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	4,993	2,354
Ending balance	$ 4,856	$ (1,305)

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount before tax and reclassification adjustments of other comprehensive income (loss) attributable to parent.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
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Amount of tax expense (benefit) allocated to other comprehensive income (loss) attributable to parent entity.

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Amount before tax of reclassification adjustments of other comprehensive income (loss) attributable to parent.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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