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RELATED PARTY TRANSACTIONS (Details) - USD ($) $ in Millions	Apr. 29, 2019	Oct. 27, 2017
Notes payable | Promissory Note
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
Ownership percent threshold for promissory note issuance to equity holders		5.00%

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- Definition

Business Combination, Ownership Percent Threshold For Promissory Note Issuance To Equity Holders

+ References

No definition available.

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- Definition

Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

The cash outflow for a borrowing supported by a written promise to pay an obligation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
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