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Accrued Expenses and Other Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2018
Payables and Accruals [Abstract] |
Summary of Accrued Expenses and Other Liabilities | Accrued expenses and other liabilities consist of the following as of December 31 (in thousands):
|  | 2018 |  |  | 2017 |
Sales and marketing costs |  | $ | 25,379 |  |  | $ | 21,964 |
Compensation and benefits |  |  | 19,124 |  |  |  | 14,818 |
Manufacturing costs |  |  | 3,744 |  |  |  | 1,979 |
Customer deposits |  |  | 2,058 |  |  |  | 1,230 |
Rent obligations |  |  | 663 |  |  |  | 779 |
Billings in excess of revenues |  |  | 512 |  |  |  | 1,842 |
Other |  |  | 4,811 |  |  |  | 3,654 |
Total accrued expenses |  | $ | 56,291 |  |  | $ | 46,266 |

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