Including the current and noncurrent portions, carrying value as of the balance sheet date of a written promise to pay a note, initially due after one year or beyond the operating cycle if longer, which can be exchanged for a specified amount of one or more securities (typically common stock), at the option of the issuer or the holder.

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DEBT - 5.25% Convertible Senior Note (Details) - USD ($)	Jul. 31, 2020	Mar. 01, 2019	Feb. 28, 2019	Mar. 18, 2014
Debt Instrument [Line Items]
Convertible notes payable		$ 65,600,000
Debt instrument, interest rate, effective percentage	27.80%
5.25% Convertible Senior Notes Due 2019
Debt Instrument [Line Items]
Debt instrument stated percentage				5.25%
Principal amount of notes held				$ 100,000,000
Debt instrument, interest rate, effective percentage	13.90%
SPHG Holdings \| Convertible Senior Unsecured Note
Debt Instrument [Line Items]
Debt instrument stated percentage			7.50%
Principal amount of notes held			$ 14,900,000.0
Convertible notes payable, current			$ 14,900,000