Quarterly report pursuant to Section 13 or 15(d)

Revenue From Contracts With Customers (Narrative) (Details)

v3.20.1
Revenue From Contracts With Customers (Narrative) (Details) - segment
3 Months Ended 12 Months Ended
Mar. 31, 2020
Dec. 31, 2019
Revenue from Contracts with Customers [Abstract]    
Number of reportable segments 2 2