| Schedule of Accrued Liabilities |
| | | | | | | | | | As of December 31, | | 2015 | | 2014 | Customer prepayments and deposits | $ | 14,318 |
| | $ | 14,665 |
| Accrued product taxes | 8,272 |
| | 18,248 |
| Accrued wages and benefits | 7,813 |
| | 6,389 |
| Accrued product costs | 4,728 |
| | 10,174 |
| Other | 12,709 |
| | 14,340 |
| Other current liabilities | $ | 47,840 |
| | $ | 63,816 |
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