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INVESTMENTS AND FAIR VALUE MEASUREMENTS - Contingent consideration (Detail) - Fair Value, Inputs, Level 3 [Member]
$ in Thousands
3 Months Ended
Mar. 31, 2017
USD ($)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]  
Balance at December 31, 2016 $ 103
Payment (61)
Quarterly fair value adjustment 0
Balance at March 31, 2017 $ 42