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LONG-TERM DEBT, COMMON STOCK WARRANT LIABILITY, AND SUBSEQUENT EVENT - Redemption of Senior Secured Notes (Details) - Senior Secured Notes - Senior Secured Notes Due 2028 - Subsequent Event | Feb. 12, 2021
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On February 2, 2019 to February 1, 2020 |
Line of Credit Facility [Line Items] |
Percentage Premium | 104.125%
On February 2, 2020 to February 1, 2021 |
Line of Credit Facility [Line Items] |
Percentage Premium | 102.063%
On February 2, 2021 to February 1, 2022 |
Line of Credit Facility [Line Items] |
Percentage Premium | 100.00%

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