XML 96 R83.htm IDEA: XBRL DOCUMENT v3.7.0.1
Share-Based Compensation - Schedule of Unrecognized Share-Based Compensation Cost (Detail) - Restricted Stock Units (RSUs) [Member]
$ in Millions
Jun. 30, 2017
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Unrecognized share-based compensation cost $ 32.3
Aggregate intrinsic value of options outstanding 17.4
Aggregate intrinsic value of options fully vested 17.4
Aggregate intrinsic value of RSUs outstanding $ 52.5