Basis of Presentation - Accounts Receivable (Details) - Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-10-01 $ in Millions	Sep. 30, 2020 USD ($)
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue, remaining performance obligation	$ 13.9
Revenue, remaining performance obligation, expected timing of satisfaction	1 month