Annual report pursuant to Section 13 and 15(d)

Revenues - Performance Obligations (Details)

v3.19.3.a.u2
Revenues - Performance Obligations (Details)
$ in Millions
Dec. 31, 2019
USD ($)
Revenue from Contract with Customer [Abstract]  
Unsatisfied performance obligations $ 92.1
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Performance obligation, timing of satisfaction period 2 years