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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Recently Adopted Accounting Standards (Details) - USD ($) $ in Millions	Dec. 30, 2022	Oct. 01, 2022	Sep. 30, 2022	Jun. 09, 2020
Debt Instrument [Line Items]
Additional paid-in capital	$ (437.9)		$ (469.1)
Long-term debt, net	440.8		412.3
Deferred tax assets	1.9		2.3
Retained earnings	$ 73.3		$ 63.8
Accounting Standards Update 2020-06
Debt Instrument [Line Items]
Additional paid-in capital		$ 34.6
Long-term debt, net		28.0
Deferred tax assets		0.1
Retained earnings		$ 6.5
Convertible Debt
Debt Instrument [Line Items]
Contractual interest rate	4.00%
Convertible Notes \| Convertible Debt
Debt Instrument [Line Items]
Contractual interest rate	4.00%			4.00%