v3.3.1.900

ACCOUNTS RECEIVABLE AND RELATED ALLOWANCE FOR DOUBTFUL ACCOUNTS (Details) - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2015 | Dec. 31, 2014
Accounts Receivable, Net [Abstract] |  |  |  |  |
Accounts receivable |  |  |  | $ 89,291 | $ 72,698
Allowance for doubtful accounts | $ (2,134) | $ (2,413) | $ (2,703) | (2,134) | (2,449)
Accounts receivable, net of allowance for doubtful accounts |  |  |  | $ 87,157 | $ 70,249
Allowance for doubtful accounts |  |  |  |  |
Allowance for doubtful accounts | 2,449 | 2,413 | 2,703 |  |
Additions Charged to Costs and Expenses | (1,553) | (1,004) | (824) |  |
Deduction From Reserves | (1,868) | (968) | (1,114) |  |
Allowance for doubtful accounts | $ 2,134 | $ 2,449 | $ 2,413 |  |

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