FAIR VALUE MEASUREMENTS - Summary of Financial Assets and Liabilities Carried at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Assets:
Short-term investments	$ 69	$ 62
Derivative financial instruments	389	816
Total	458	878
Liabilities:
Contingent consideration	14,799	24,119
Level 1 Inputs [Member]
Assets:
Short-term investments	69	62
Derivative financial instruments	0	0
Total	69	62
Liabilities:
Contingent consideration	0	0
Level 2 Inputs [Member]
Assets:
Short-term investments	0	0
Derivative financial instruments	389	816
Total	389	816
Liabilities:
Contingent consideration	0	0
Level 3 Inputs [Member]
Assets:
Short-term investments	0	0
Derivative financial instruments	0	0
Total	0	0
Liabilities:
Contingent consideration	$ 14,799	$ 24,119