CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock Class A Common Stock	Common Stock Class B Common Stock	Additional Paid-in Capital Cumulative Effect Adjustment	Additional Paid-in Capital	Retained Earnings Cumulative Effect Adjustment	Retained Earnings	Treasury Stock	Non-controlling Interest Cumulative Effect Adjustment	Non-controlling Interest	Cumulative Effect Adjustment	Total
Balance at beginning of period at Dec. 31, 2018	$ 271		$ 186	$ 164,086	$ (532)	$ 35,507	$ (1,414)	$ (186)	$ 142,428	$ (532)	$ 340,878
Balance at beginning of period (in shares) at Dec. 31, 2018	27,091,000	19,627,000					91,000
Changes in Stockholders' Equity
Exchange of Solaris LLC Units and shares of Class B common stock for shares of Class A common stock	$ 36			28,496					(28,532)
Exchange of Solaris LLC Units and shares of Class B common stock for shares of Class A common stock (in shares)	3,687,000	(3,687,000)
Deferred tax asset and payables related to Tax Receivable Agreement from the exchange of Solaris LLC Units and shares of Class B common stock for shares of Class A common stock				(2,383)							(2,383)
Stock option exercises	$ 1			649			$ (427)		(356)		$ (133)
Stock option exercises (in shares)	76,000						28,000				103,207
Share and unit repurchases and retirements	$ (2)			(2,916)					(331)		$ (3,249)
Share and unit repurchases and retirements (in shares)	(252,000)
Stock-based compensation				3,030					1,633		4,663
Vesting of restricted stock	$ 2			695			$ (685)		(698)		(686)
Vesting of restricted stock (in shares)	163,000						44,000
Solaris LLC distribution paid to Solaris LLC unitholders									(6,500)		(6,500)
Dividends paid (Class A common stock)						(12,760)					(12,760)
Net income (loss)						52,007			38,353		90,360
Balance at end of period at Dec. 31, 2019	$ 308			191,843		74,222	$ (2,526)		145,811		409,658
Balance at end of period (in shares) at Dec. 31, 2019	30,765,000	15,940,000					163,000
Changes in Stockholders' Equity
Exchange of Solaris LLC Units and shares of Class B common stock for shares of Class A common stock	$ 4			2,023					(2,027)
Exchange of Solaris LLC Units and shares of Class B common stock for shares of Class A common stock (in shares)	255,000	(255,000)
Deferred tax asset and payables related to Tax Receivable Agreement from the exchange of Solaris LLC Units and shares of Class B common stock for shares of Class A common stock				(1,485)							(1,485)
Stock option exercises				101			$ (80)		(25)		$ (4)
Stock option exercises (in shares)	16,000						7,000				22,421
Share and unit repurchases and retirements	$ (24)			(14,804)		(10,177)			(1,712)		$ (26,717)
Share and unit repurchases and retirements (in shares)	(2,374,000)
Stock-based compensation				3,216					1,775		4,991
Vesting of restricted stock	$ 2			956			$ (373)		(958)		(373)
Vesting of restricted stock (in shares)	326,000						37,000
Cancelled shares withheld for taxes from RSU vesting				(156)		(32)			(102)		(290)
Cancelled shares withheld for taxes from RSU vesting (in shares)	(45,000)
Solaris LLC distribution paid to Solaris LLC unitholders for income tax withholding				(32)					(150)		(182)
Solaris LLC distribution paid to Solaris LLC unitholders									(6,635)		(6,635)
Dividends paid (Class A common stock)						(12,391)					(12,391)
Treasury stock retirements				(1,247)		(1,732)	$ 2,979
Treasury stock retirements (in shares)							(207,000)
Net income (loss)						(29,341)			(21,752)		(51,093)
Balance at end of period at Dec. 31, 2020	$ 290			180,415		20,549			114,225		315,479
Balance at end of period (in shares) at Dec. 31, 2020	28,943,000	15,685,000
Changes in Stockholders' Equity
Exchange of Solaris LLC Units and shares of Class B common stock for shares of Class A common stock	$ 20			13,872					(13,892)
Exchange of Solaris LLC Units and shares of Class B common stock for shares of Class A common stock (in shares)	1,915,000	(1,915,000)
Deferred tax asset and payables related to Tax Receivable Agreement from the exchange of Solaris LLC Units and shares of Class B common stock for shares of Class A common stock				(1,721)							(1,721)
Stock option exercises				20					(7)		$ 13
Stock option exercises (in shares)	5,000										4,600
Stock-based compensation				3,787					1,722		$ 5,509
Vesting of restricted stock	$ 3			656					(659)
Vesting of restricted stock (in shares)	353,000
Cancelled shares withheld for taxes from RSU vesting	$ (1)			(194)		(349)			(242)		(786)
Cancelled shares withheld for taxes from RSU vesting (in shares)	(70,000)
Solaris LLC distribution paid to Solaris LLC unitholders for income tax withholding				77					(230)		(153)
Solaris LLC distribution paid to Solaris LLC unitholders									(5,798)		(5,798)
Dividends paid (Class A common stock)						(13,407)					(13,407)
Net income (loss)						(868)			(392)		(1,260)
Balance at end of period at Dec. 31, 2021	$ 312			$ 196,912		$ 5,925			$ 94,727		$ 297,876
Balance at end of period (in shares) at Dec. 31, 2021	31,146,000	13,770,000