Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation - Accounts Receivable (Details)

v3.19.1
Basis of Presentation - Accounts Receivable (Details)
$ in Millions
Mar. 31, 2019
USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-04-30  
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]  
Revenue, remaining performance obligation $ 79.8