BORROWINGS - Senior Secured Notes Narrative (Details) - Senior Secured Notes - Secured Debt - USD ($)	Jul. 15, 2021	Sep. 30, 2020
Debt Instrument [Line Items]
Debt instrument, face amount		$ 300,000,000
Interest rate, stated percentage		7.875%
Senior Notes	$ 30,000,000
Debt instrument, redemption of senior secured notes, including premium and accrued interest	31,500,000
Loss related to redemption premium and write-offs	$ 1,400,000
Debt instrument, redemption price, percentage of principal amount redeemed	103.00%

Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Percentage of principal amount of debt redeemed.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

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Debt Instrument, Redemption of Senior Secured notes, Including Premium And Accrued Interest

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Loss Related to Redemption Premium and Write-offs

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