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ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Reclassifications) (Details) - Unamortized Loss on Defined Benefit Pension Plans - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
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Jun. 30, 2017 | Jul. 01, 2016 | Jun. 30, 2017 | Jul. 01, 2016
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Amortization of loss | $ 265 | $ 114 | $ 548 | $ 425
Income tax expense | (100) | (44) | (208) | (162)
Total reclassifications for the period | $ 165 | $ 70 | $ 340 | $ 263

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