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Accrued Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2019
Accrued Liabilities, Current [Abstract] |
Summary of Accrued Liabilities | Accrued liabilities consist of the following at December 31:
| 2019 |  | 2018
Accrued wages, bonuses and commissions | $ | 49,126 |  |  | $ | 40,100 |
Other accrued liabilities | 26,108 |  |  | 26,380 |
| $ | 75,234 |  |  | $ | 66,480 |

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