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GOODWILL AND OTHER INTANGIBLE ASSETS - Contingent Consideration Liabilities (Detail)
$ in Thousands
9 Months Ended
Sep. 30, 2019
USD ($)
period
Sep. 30, 2018
USD ($)
Contingent consideration liabilities    
Beginning balance $ 11,630 $ 14,091
Accretion 429 695
Payments (6,450) (5,150)
Ending balance $ 5,609 $ 9,636
Number of initial annual contingent consideration earn-out periods | period 3