DEBT - Future Payments of Principal and Contractual Interest (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Feb. 29, 2020
Interest
Interest expense, total due	$ 19,488
Convertible debt
Principal
2020	0
2021	0
2022	0
2023	0
2024	0
2025	600,000
Principal, total due	600,000	$ 600,000
Interest
2020	0
2021	4,500
2022	4,500
2023	4,500
2024	4,500
2025	1,488
Total
2020	0
2021	4,500
2022	4,500
2023	4,500
2024	4,500
2025	601,488
Principal and interest, total due	$ 619,488

Interest, Long-term Debt, Maturities, Repayments of Principal in Year Five

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