Income Taxes - Expense reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Taxes
U.S. federal corporate tax rate	21.00%	21.00%	21.00%
Income (loss) before income taxes	$ 46,595	$ 41,315	$ (634)
Less: net income (loss) before income taxes attributable to noncontrolling interest	14,439	12,354	(392)
Income (loss) attributable to Solaris Oilfield Infrastructure, Inc. stockholders before income taxes	32,156	28,961	(242)
Income tax expense (benefit) at the federal statutory rate	6,753	6,082	(70)
State income taxes, net of federal benefit	962	485	465
Remeasurement of deferred taxes	(35)	828	139
Other	140	408	92
Income tax expense	$ 7,820	$ 7,803	$ 626