EMPLOYEE BENEFIT PLANS - AMOUNTS NOT YET RECOGNIZED AS NET PERIODIC COST (Details) - OPEB - USD ($) $ in Thousands	Jan. 02, 2024	Jan. 01, 2024	Sep. 30, 2023
Regulatory Assets
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net actuarial loss		$ 42,397	$ 30,046
Prior service cost	$ (61,244)	(61,244)	0
Regulatory Assets, Total	(18,847)	(18,847)	30,046
Accumulated Other Comprehensive Income (Loss)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net actuarial loss		12,384	5,498
Prior service cost	(20,039)	(20,039)	0
Accumulated Other Comprehensive Income (Loss), Total	$ (7,655)	$ (7,655)	$ 5,498

Amount, before tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

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-Name Accounting Standards Codification
-Topic 220
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Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
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-Name Accounting Standards Codification
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Amount, before tax, of accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit.

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Amount, before tax, of accumulated other comprehensive (income) loss for cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

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The amount for the individual regulatory asset as itemized in a table of regulatory assets as of the end of the period.

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-SubTopic 340
-Name Accounting Standards Codification
-Section 50
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