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ACCRUED EXPENSES (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012 | Dec. 31, 2012
Accrued expenses [Abstract] |  |  |  |  |
Sales commissions | $ 1,837 |  | $ 1,837 |  | $ 1,295
Subcontracting labor | 2,818 |  | 2,818 |  | 2,408
Salaries, bonuses and related benefits | 8,568 |  | 8,568 |  | 6,023
Litigation reserve | 11,550 |  | 11,550 |  | 11,549
Consideration payable on acquisitions | 786 |  | 786 |  | 0
Other | 4,187 |  | 4,187 |  | 4,085
Accrued expenses | 29,746 |  | 29,746 |  | 25,360
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Liability at December 31, 2012 |  |  | 122 |  |
New Charges | 1,263 | 245 | 1,387 | 382 |
Cash Payments & Other Settlements |  |  | (318) |  |
Liability at June 30, 2012 | 1,191 |  | 1,191 |  |
Employee Severance [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Liability at December 31, 2012 |  |  | 122 |  |
New Charges |  |  | 1,239 |  |
Cash Payments & Other Settlements |  |  | (170) |  |
Liability at June 30, 2012 | 1,191 |  | 1,191 |  |
Other Restructuring [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Liability at December 31, 2012 |  |  | 0 |  |
New Charges |  |  | 48 |  |
Cash Payments & Other Settlements |  |  | (48) |  |
Liability at June 30, 2012 | 0 |  | 0 |  |
Transportation of Equipment [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Liability at December 31, 2012 |  |  | 0 |  |
New Charges |  |  | 100 |  |
Cash Payments & Other Settlements |  |  | (100) |  |
Liability at June 30, 2012 | $ 0 |  | $ 0 |  |

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