Commitments and Contingencies - Concentration of Risk (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Concentration Risk [Line Items]
Insurance coverage	$ 250,000
Largest Customer | Consolidated Revenues | Customer Concentration Risk
Concentration Risk [Line Items]
Risk percent	10.00%	14.00%
Largest Customer | Accounts Receivable | Customer Concentration Risk
Concentration Risk [Line Items]
Risk percent	19.00%	5.00%
Five Largest Customers | Consolidated Revenues | Customer Concentration Risk
Concentration Risk [Line Items]
Risk percent	36.00%	44.00%
Five Largest Customers | Accounts Receivable | Customer Concentration Risk
Concentration Risk [Line Items]
Risk percent	34.00%	28.00%
Ten Largest Customers | Consolidated Revenues | Customer Concentration Risk
Concentration Risk [Line Items]
Risk percent	45.00%	55.00%
Ten Largest Customers | Accounts Receivable | Customer Concentration Risk
Concentration Risk [Line Items]
Risk percent	40.00%	31.00%