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INVESTMENT IN AFFLIATES AND OTHER ENTITIES (Details) - USD ($)
$ in Millions
Aug. 15, 2017
Sep. 30, 2019
Jan. 15, 2019
Schedule of Equity Method Investments [Line Items]      
Equity method investments   $ 4.1  
Recognition of assets and liabilities, fair value resulting in a gain $ 1.1    
NTT ME      
Schedule of Equity Method Investments [Line Items]      
Ownership percentage by noncontrolling owners     15.00%
INAP      
Schedule of Equity Method Investments [Line Items]      
Ownership percentage     85.00%
Put Option      
Schedule of Equity Method Investments [Line Items]      
Settlement alternatives, Cash at fair value     $ 1.0