Subsequent Events - Agreement With Triumph Business Capital - Additional Information (Details) - Triumph Business Capital [Member] - Letter of Intent and Memo of Understanding [Member] - Forecast [Member] $ in Millions		1 Months Ended
	Mar. 09, 2021 USD ($) Installment	Feb. 28, 2021 USD ($)	Jan. 31, 2021 USD ($)
Subsequent Event [Line Items]
Proceeds from transportation settlements	$ 1.6	$ 17.5	$ 7.1
Transportation settlements fund held in reserve	0.6
Line of credit facility advance	3.0
Repayment of factor advances	11.0
Amount retained to reduce outstanding principal amount of factoring advances	$ 6.9
Number of installments for repayment | Installment	48
Frequency of payments	monthly
Date of first required payment	Jan. 01, 2022
Funds held in reserve against advances	$ 0.8