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Income Taxes - Schedule of Reconciliation of Effective Income Tax Rate (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Income Tax Disclosure [Abstract] |  |  |
U.S. federal statutory income tax | $ 35,491 | $ 15,732 | $ 9,419
U.S. state and local income taxes, net of U.S. federal income tax benefits | 8,770 | 4,258 | 3,144
Unrecognized tax benefit | (853) | 0 | 0
Valuation allowance | 517 | 1,663 | 1,833
Non-taxable income | (580) | (738) | (637)
Provision to return adjustments | 239 | (723) | (326)
Change in state and foreign tax rates | 238 | (135) | 267
Foreign tax rate differentials | (469) | (59) | 112
Excess tax benefits from share-based awards | (1,008) | (234) | (81)
Other non-deductible expenses | 3,669 | 2,195 | 2,246
Current and Deferred Income Tax Expense (Benefit) from Continuing Operations | $ 46,014 | $ 21,959 | $ 15,977
U.S. federal statutory income tax rate, percent | 21.00% | 21.00% | 21.00%
U.S. state and local income taxes, net of U.S. federal income tax benefits, percent | 5.20% | 5.70% | 7.00%
Unrecognized tax benefits, percent | (0.50%) | 0.00% | 0.00%
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent | 0.30% | 2.20% | 4.10%
Other, percent | (0.30%) | (1.00%) | (1.40%)
Adjustment to reflect prior year tax return filings, percent | 0.10% | (1.00%) | (0.70%)
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent | 0.10% | (0.20%) | 0.60%
Non-U.S. operations, percent | (0.30%) | (0.10%) | 0.20%
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Payment Arrangement, Percent | (0.60%) | (0.30%) | (0.20%)
Business promotion and other non-deductible expenses, percent | 2.20% | 3.00% | 5.00%
Total income tax expense, percent | 27.20% | 29.30% | 35.60%

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