Share-based Compensation (Shares Reserved for Issuance) (Details) - shares shares in Thousands	Mar. 31, 2017	Jun. 30, 2016
Class Of Stock [Line Items]
Shares reserved for issuance	27,378	26,011
2014 Employee Stock Purchase Plan
Class Of Stock [Line Items]
Shares reserved for issuance	7,785	10,001
Employee Stock Options and Awards Outstanding
Class Of Stock [Line Items]
Shares reserved for issuance	9,352	10,609
2013 Employee Plan Shares Available for Grant
Class Of Stock [Line Items]
Shares reserved for issuance	10,241	5,401