EMPLOYEE STOCK PLANS - Additional Information (Details) $ in Millions	9 Months Ended
Jul. 03, 2020 USD ($)
Stock options and performance stock options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation expense related to outstanding stock awards	$ 18.6
Weighted average period for recognition	1 year 10 months 24 days
Cash-settled stock appreciation rights
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation expense related to outstanding stock awards	$ 0.9
Weighted average period for recognition	2 years 3 months 18 days
Restricted stock units, deferred stock units and performance units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation expense related to outstanding stock awards	$ 52.0
Weighted average period for recognition	2 years

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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-Publisher FASB
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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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