Share-based Compensation (Shares Reserved for Issuance) (Details) - shares shares in Thousands	Dec. 31, 2016	Jun. 30, 2016
Class Of Stock [Line Items]
Shares reserved for issuance	20,900	26,011
2014 Employee Stock Purchase Plan
Class Of Stock [Line Items]
Shares reserved for issuance	8,897	10,001
Employee Stock Options and Awards Outstanding
Class Of Stock [Line Items]
Shares reserved for issuance	10,450	10,609
2013 Employee Plan Shares Available for Grant
Class Of Stock [Line Items]
Shares reserved for issuance	1,553	5,401