FAIR VALUE (Details) - USD ($) $ in Millions	Dec. 29, 2017	Sep. 29, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, fair value	$ 454.5
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents - Money market funds	15.3	$ 11.4
Interest rate swap contracts	3.3	1.6
Total assets measured at fair value	18.6	13.0
Interest rate swap contracts		0.6
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents - Money market funds	0.0	0.0
Interest rate swap contracts	0.0	0.0
Total assets measured at fair value	0.0	0.0
Interest rate swap contracts		0.0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents - Money market funds	15.3	11.4
Interest rate swap contracts	3.3	1.6
Total assets measured at fair value	18.6	13.0
Interest rate swap contracts		0.6
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents - Money market funds	0.0	0.0
Interest rate swap contracts	0.0	0.0
Total assets measured at fair value	$ 0.0	0.0
Interest rate swap contracts		$ 0.0