Employee Benefit Plans (Shares Reserved for Issuance) (Details) - shares shares in Thousands	Jun. 30, 2019	Jun. 30, 2018
Class Of Stock [Line Items]
Shares reserved for issuance	29,002	27,382
2014 Employee Stock Purchase Plan
Class Of Stock [Line Items]
Shares reserved for issuance	10,085	5,365
2013 Equity Incentive Plan Shares Available for Grant
Class Of Stock [Line Items]
Shares reserved for issuance	8,462	9,957
Employee Stock Options and Awards Outstanding
Class Of Stock [Line Items]
Shares reserved for issuance	10,455	12,060