Annual report pursuant to Section 13 and 15(d)

GOODWILL AND OTHER INTANGIBLE ASSETS - Narrative (Details)

v3.5.0.2
GOODWILL AND OTHER INTANGIBLE ASSETS - Narrative (Details) - USD ($)
$ in Thousands
 12 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]      
Amortization expense on intangible assets $ 20,821 $ 18,800 $ 7,318
Future amortization expense [Abstract]      
Future amortization expense 2017 20,476    
Future amortization expense 2018 19,162    
Future amortization expense 2019 18,120    
Future amortization expense 2020 17,008    
Future amortization expense 2021 $ 16,252