Subsequent Events (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Oct. 31, 2020	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Jul. 31, 2020
Subsequent Event [Line Items]
Purchase order						$ 6,700
Revenues		$ 152,601	$ 245,947	$ 567,984	$ 778,471
Horsepower Compressor Units [Member]
Subsequent Event [Line Items]
Revenues		$ 1,700
Subsequent Event [Member] | Horsepower Compressor Units [Member]
Subsequent Event [Line Items]
Revenues	$ 5,000