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RESTRUCTURINGS - Restructuring Reserve (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2018 | Sep. 30, 2017 | Dec. 31, 2017
Restructuring Reserve [Roll Forward] |  |  |  |  |  |
Balance at beginning of period | $ 2,681 | $ 687 |  | $ 202 | $ 0 | $ 0
Accrual: |  |  |  |  |  |
Continuing Operations | 553 | 0 |  | 4,536 | 5,369 |
Discontinued Operations | 0 | 279 |  | 0 | 3,794 |
Total | 553 | 279 | $ 4,500 | 4,536 | 9,163 | 9,100
Payments |  |  |  |  | (8,878) |
Balance at end of period | 688 | 285 | $ 688 | 688 | 285 | $ 202
Severance and other employee related costs |  |  |  |  |  |
Accrual: |  |  |  |  |  |
Continuing Operations | 553 | 0 |  | 4,536 | 5,369 |
Discontinued Operations | 0 | 279 |  | 0 | 2,899 |
Total | 553 | 279 |  | 4,536 | 8,268 |
Payments | $ (2,546) | $ (681) |  | $ (4,050) | (7,983) |
Other restructuring expense |  |  |  |  |  |
Accrual: |  |  |  |  |  |
Continuing Operations |  |  |  |  | 0 |
Discontinued Operations |  |  |  |  | 895 |
Total |  |  |  |  | 895 |
Payments |  |  |  |  | $ (895) |

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