CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Revenue:
Total revenue	$ 102,976	$ 241,687	$ 197,196
Operating costs and expenses:
Depreciation and amortization	27,021	26,925	18,422
Selling, general and administrative (excluding $692, $573 and $480 of depreciation and amortization for the years ended December 31, 2020, 2019 and 2018, respectively, shown separately)	16,481	18,586	16,758
Impairment losses	47,828
Other operating expenses	5,782	585	1,827
Total operating costs and expenses	162,876	133,757	97,909
Operating income (loss)	(59,900)	107,930	99,287
Interest expense, net	(162)	(634)	(374)
Total other income (expense)	(162)	(634)	(374)
Income (loss) before income tax expense	(60,062)	107,296	98,913
(Provision) benefit for income taxes	(8,969)	16,936	12,961
Net income (loss)	(51,093)	90,360	85,952
Less: net (income) loss related to non-controlling interests	21,752	(38,353)	(43,521)
Net income (loss) attributable to Solaris	(29,341)	52,007	42,431
System rental
Revenue:
Total revenue	52,171	142,022	143,646
Operating costs and expenses:
Cost of revenue	5,501	9,707	7,230
Depreciation and amortization	24,175	22,389	14,920
System services
Revenue:
Total revenue	48,625	63,871	43,010
Operating costs and expenses:
Cost of revenue	58,767	74,749	50,633
Depreciation and amortization	971	1,548	1,274
Transloading services
Revenue:
Total revenue	1,250	34,105	8,083
Operating costs and expenses:
Cost of revenue	1,040	2,601	2,242
Depreciation and amortization	411	1,643	954
Inventory software services
Revenue:
Total revenue	930	1,689	2,457
Operating costs and expenses:
Cost of revenue	456	604	797
Depreciation and amortization	$ 772	$ 772	$ 794
Class A Common Stock
Operating costs and expenses:
Earnings (loss) per share of Class A common stock - basic (in dollars per share)	$ (1.03)	$ 1.69	$ 1.60
Earnings (loss) per share of Class A common stock - diluted (in dollars per share)	$ (1.03)	$ 1.69	$ 1.59
Basic weighted-average shares of Class A common stock outstanding (in shares)	28,915	30,141	25,678
Diluted weighted-average shares of Class A common stock outstanding (in shares)	28,915	30,185	25,829