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SUBSEQUENT EVENTS - Additional Information (Details) - Adesis Inc [Member] $ in Millions |  | 6 Months Ended |
--- | --- | --- | ---
Jul. 11, 2016 USD ($) | Jun. 30, 2016 | Jun. 23, 2016 Employee
Subsequent Event [Line Items] |  |  |
Business acquisition agreement date |  | Jun. 23, 2016 |
Number of employees in contract research organization | Employee |  |  | 43
Transaction closed date |  | Jul. 11, 2016 |
Subsequent Event [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Shares acquired for cash | $ | $ 33.0 |  |

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