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Accrued Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2017
Payables and Accruals [Abstract] |
Schedule of accrued liabilities | Accrued liabilities consisted of the following:
| December 31,
(in thousands) | 2017 |  | 2016
Sales incentive and advertising accruals | $ | 31,143 |  |  | $ | 25,761 |
Vacation liability | 8,993 |  |  | 7,432 |
Dividend payable | 9,954 |  |  | 8,535 |
Labor related liabilities | 16,970 |  |  | 8,431 |
Sales taxes payable and other | 17,144 |  |  | 10,318 |
| $ | 84,204 |  |  | $ | 60,477 |

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