Equity - Basic and Diluted Income (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Equity [Abstract]
Net income (loss) attributable to Via Renewables, Inc. stockholders	$ 7,519	$ (881)	$ 15,313	$ 16,710
Less: Dividend on Series A Preferred Stock	2,708	2,026	7,892	5,677
Net income (loss) attributable to stockholders of Class A common stock, basic	4,811	(2,907)	7,421	11,033
Net income (loss) attributable to stockholders of Class A common stock, diluted	$ 4,811	$ (2,907)	$ 7,421	$ 11,033
Basic weighted average Class A common shares outstanding (in shares)	3,232	3,172	3,204	3,151
Basic income (loss) per share attributable to stockholders (in dollars per share)	$ 1.49	$ (0.92)	$ 2.32	$ 3.50
Effect of conversion of Class B common stock to shares of Class A common stock	$ 5,803	$ 0	$ 9,088	$ 0
Diluted net income (loss) attributable to stockholders of Class A common stock	$ 10,614	$ (2,907)	$ 16,509	$ 11,033
Basic weighted average Class A common shares outstanding (in shares)	3,232	3,172	3,204	3,151
Effect of dilutive Class B common stock (in shares)	4,000	0	4,000	0
Effect of dilutive restricted stock units (in shares)	0	0	0	22
Diluted weighted average shares outstanding (in shares)	7,232	3,172	7,204	3,173
Diluted income (loss) per share attributable to stockholders (in dollars per share)	$ 1.47	$ (0.92)	$ 2.29	$ 3.48