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Income Taxes - Provision for Income Taxes (Details) | 12 Months Ended
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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%

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