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v3.19.1

LONG-TERM DEBT AND COMMON STOCK WARRANT LIABILITY - Redemption of Senior Secured Notes (Details) - Senior Secured Notes - Senior secured notes due 2024 | 12 Months Ended
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Dec. 31, 2018
On February 2, 2019 to February 1, 2020 |
Line of Credit Facility [Line Items] |
Percentage Premium | 2.00%
On February 2, 2020 to February 1, 2021 |
Line of Credit Facility [Line Items] |
Percentage Premium | 1.50%
On February 2, 2021 to February 1, 2022 |
Line of Credit Facility [Line Items] |
Percentage Premium | 0.50%
On or after February 2, 2022 |
Line of Credit Facility [Line Items] |
Percentage Premium | 0.00%

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