Revenues - Total Reserves Summarized (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Revenue from Contract with Customer [Abstract]
Revenue-related reserves	$ 509	$ 0
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Revenue-related reserves	509	0
Accounts Receivable
Revenue from Contract with Customer [Abstract]
Revenue-related reserves	305
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Revenue-related reserves	305
Accrued Expenses And Other Current Liabilities
Revenue from Contract with Customer [Abstract]
Revenue-related reserves	204	0
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Revenue-related reserves	$ 204	$ 0