Employee Benefit Plans (Shares Reserved for Issuance) (Details) - shares shares in Thousands	Jun. 30, 2018	Jun. 30, 2017
Class Of Stock [Line Items]
Shares reserved for issuance	27,382	25,140
2014 Employee Stock Purchase Plan
Class Of Stock [Line Items]
Shares reserved for issuance	5,365	7,785
Employee Stock Options and Awards Outstanding
Class Of Stock [Line Items]
Shares reserved for issuance	9,957	9,726
2013 Equity Incentive Plan Shares Available for Grant
Class Of Stock [Line Items]
Shares reserved for issuance	12,060	7,629