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Income Taxes - Reconciliation of Income Tax Rates (Details) | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018
Income Tax Disclosure [Abstract] |  |
U.S. statutory federal rate | 21.00% | 21.00%
State and local rate, net of federal tax | 7.40% | 14.16%
Stock compensation | (7.01%) | 18.25%
Excess compensation deduction | (5.08%) | 8.38%
Foreign tax credits | 0.45% | (1.03%)
Federal true-ups |  | 0.41%
Life insurance | (0.81%) | 1.28%
Other permanent differences | (0.16%) | 0.25%
Income tax (benefit) provision | 15.79% | 62.70%

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