Annual report pursuant to Section 13 and 15(d)

SIGNIFICANT ACCOUNTING POLICIES - Performance Obligations (Details)

v3.10.0.1
SIGNIFICANT ACCOUNTING POLICIES - Performance Obligations (Details)
$ in Millions
Dec. 31, 2018
USD ($)
Accounting Policies [Abstract]  
Revenue, remaining performance obligation, amount $ 64.8
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-01-01  
Accounting Policies [Abstract]  
Revenue, remaining performance obligation, percentage 76.00%
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]: 2020-01-01  
Accounting Policies [Abstract]  
Revenue, remaining performance obligation, percentage 24.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue, remaining performance obligation, period