Employee Stock Purchase Plan (Details) shares in Thousands	6 Months Ended
	Dec. 31, 2016 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock shares reserved for issuance (in shares)	7,530
2016 Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock shares reserved for issuance (in shares)	3,500
Offering period for ESPP	6 months
Percentage of market value for purchasing shares of common stock by employees	85.00%