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

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RELATED PARTY TRANSACTIONS (Details) - USD ($) $ in Millions	Apr. 29, 2019	Mar. 31, 2020	Oct. 27, 2017
Promissory Note \| Notes payable
Related Party Transaction [Line Items]
Repayment of notes payable	$ 24.7
GENBAND
Related Party Transaction [Line Items]
Promissory note issued to GENBAND equity holders			$ 22.5
GENBAND \| Minimum
Related Party Transaction [Line Items]
Promissory note interest rate		7.50%
GENBAND \| Maximum
Related Party Transaction [Line Items]
Promissory note interest rate		10.00%