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REVENUE FROM CONTRACTS WITH CUSTOMERS - Remaining Performance Obligations (Details)
$ in Millions
Jun. 30, 2020
USD ($)
Revenue from Contract with Customer [Abstract]  
Revenue, remaining performance obligation, amount $ 650.7
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-07-01  
Revenue from Contract with Customer [Abstract]  
Revenue, remaining performance obligation, amount $ 173.3
Revenue from Contracts with Customers  
Revenue, remaining performance obligation, period 3 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-10-01  
Revenue from Contract with Customer [Abstract]  
Revenue, remaining performance obligation, amount $ 331.8
Revenue from Contracts with Customers  
Revenue, remaining performance obligation, period 12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-10-01  
Revenue from Contract with Customer [Abstract]  
Revenue, remaining performance obligation, amount $ 145.6
Revenue from Contracts with Customers  
Revenue, remaining performance obligation, period 12 months