XML 101 R87.htm IDEA: XBRL DOCUMENT v3.5.0.2
Employee Deferred Savings Plan - Company's Recorded Contributions To Plan (Detail) - USD ($)
$ in Millions
12 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2014
Compensation and Retirement Disclosure [Abstract]      
Deferred savings plan Company contributions $ 5.5 $ 5.1 $ 4.4