Income Taxes - Provision for Income Taxes (Details)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Tax provision at U.S. federal statutory rates	21.00%	21.00%	21.00%
State income taxes net of federal benefit	9.50%	11.60%	12.10%
Non-deductible permanent items	3.80%	2.50%	0.90%
Variable interest entities	1.10%	(2.10%)	(1.10%)
Stock-based compensation	3.90%	2.80%	(0.30%)
Change in valuation allowance	(0.80%)	(2.60%)	4.40%
Gain on sale of investment	0.00%	8.50%	1.20%
Tax credits	(1.30%)	0.00%	0.00%
NOL adjustment	(0.80%)	0.20%	0.50%
Undistributed dividend	0.00%	(11.50%)	7.20%
Spin-off transaction	0.00%	3.00%	0.00%
Uncertain tax position	0.80%	0.00%	0.00%
Tax rate change	(0.30%)	0.00%	0.00%
Return-to-provision	(0.40%)	2.40%	0.60%
Accrual to cash true-up	1.30%	0.00%	0.00%
Other	0.40%	(0.30%)	0.60%
Effective income tax rate	38.20%	35.50%	47.10%