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FAIR VALUE MEASUREMENTS FAIR VALUE MEASUREMENTS - Contingent Consideration (Details) - Nonrecurring [Member] - USD ($)
$ in Thousands
Mar. 31, 2017
Sep. 30, 2016
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]    
Contingent Consideration $ 17,252 $ 0
Total liabilities 17,252 0
Level 1 [Member]    
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]    
Contingent Consideration 0 0
Total liabilities 0 0
Level 2 [Member]    
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]    
Contingent Consideration 0 0
Total liabilities 0 0
Level 3 [Member]    
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]    
Contingent Consideration 17,252 0
Total liabilities $ 17,252 $ 0