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COMMITMENTS AND CONTINGENCIES (Narrative) (Details) | Feb. 23, 2017 USD ($) | Jul. 17, 2015 USD ($) | Dec. 31, 2016 case
--- | --- | --- | ---
Indemnification period one - up to fifteen months after close | Subsequent Event |  |  |
Loss Contingencies [Line Items] |  |  |
Indemnification payments received | $ 0 |  |
Indemnification payments owed | $ 0 |  |
TEI |  |  |
Loss Contingencies [Line Items] |  |  |
Number of active cases | case |  |  | 50
Indemnification policy in place |  | $ 3,000,000 |
TEI | Indemnification period one - up to fifteen months after close |  |  |
Loss Contingencies [Line Items] |  |  |
Maximum indemnification from acquisition |  | $ 30,000,000 |
Period of indemnification |  | 15 months |
TEI | Indemnification period two - up to three years after close |  |  |
Loss Contingencies [Line Items] |  |  |
Maximum indemnification from acquisition |  | $ 30,000,000 |
Period of indemnification |  | 3 years |
Minimum indemnification from acquisition |  | $ 20,000,000 |
TEI | Third party insurer |  |  |
Loss Contingencies [Line Items] |  |  |
Indemnification policy in place |  | $ 3,000,000 |

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