REVENUE RECOGNITION - Narrative (Details) - Product Concentration Risk [Member] - Sales Revenue, Net [Member]	3 Months Ended
Jan. 01, 2021	Dec. 27, 2019
Value-added support services revenue, including material management and repair work revenue [Member]
Disaggregation of Revenue [Line Items]
Percentage of sales revenue	2.00%	2.00%
Point in Time
Disaggregation of Revenue [Line Items]
Percentage of sales revenue	52.20%	52.30%
Over Time
Disaggregation of Revenue [Line Items]
Percentage of sales revenue	47.80%	47.70%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
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