Annual report pursuant to Section 13 and 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Revenue, Remaining Performance Obligation (Details)

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Revenue, Remaining Performance Obligation (Details)
$ in Millions
Dec. 31, 2019
USD ($)
Accounting Policies [Abstract]  
Total remaining performance obligation $ 142.6
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01  
Accounting Policies [Abstract]  
Total remaining performance obligation $ 30.7
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue, remaining performance obligation, period 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01  
Accounting Policies [Abstract]  
Total remaining performance obligation $ 41.1
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue, remaining performance obligation, period 2 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01  
Accounting Policies [Abstract]  
Total remaining performance obligation $ 23.8
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue, remaining performance obligation, period 2 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01  
Accounting Policies [Abstract]  
Total remaining performance obligation $ 47.0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue, remaining performance obligation, period