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Income Taxes and Related Payments - Reconciliation of effective tax rate (Details) | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Income Tax Disclosure [Abstract] |  |  |
U.S. federal statutory rate | 21.00% | 21.00% | 21.00%
State and local taxes, net of federal tax effect | 3.50% | 3.10% | 2.80%
Excess tax benefits on share-based compensation | (1.40%) | (1.10%) | (0.70%)
Rate benefit from the flow through entity | (4.10%) | (5.50%) | (6.70%)
Change in state tax rate | 0.00% | (1.10%) | (6.80%)
Unrecognized tax benefits | 0.00% | 0.20% | 0.60%
Other | 0.40% | (0.10%) | 0.10%
Effective tax rate | 19.40% | 16.50% | 10.30%

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