XML 79 R65.htm IDEA: XBRL DOCUMENT v3.6.0.2
Goodwill and Intangible Assets, Net - Details of Total Goodwill (Detail) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]    
Goodwill, Beginning Balance $ 2,049,093 $ 1,925,225
Goodwill resulting from acquisitions 164,506 123,987
Other (1,960) (119)
Goodwill, Ending Balance $ 2,211,639 $ 2,049,093