BORROWINGS - Summary (Details) - USD ($) $ in Millions	6 Months Ended
Mar. 29, 2019	Sep. 28, 2018
Debt Instrument [Line Items]
Current portion of Term Facility	$ 29.4	$ 25.0
Long-Term portion of Term Facility	353.0	398.0
Debt issuance costs	(6.9)	(8.2)
Total debt outstanding	346.1	389.8
Increase in debt outstanding during period	(43.7)
Increase to debt outstanding during period	(45.0)
Decrease to debt issuance costs in period	1.3
Secured Debt
Debt Instrument [Line Items]
Current portion of Term Facility	29.4	25.0
Long-Term portion of Term Facility	323.6	345.0
Increase in debt outstanding during period	4.4
Increase to debt outstanding during period	(21.4)
Revolving Credit Facility
Debt Instrument [Line Items]
Revolving Credit Facility	0.0	$ 28.0
Increase to debt outstanding during period	$ (28.0)

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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