Stock Incentive Plan and Employee Stock Purchase Plan - ESPP (Details) - ESPP	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Weighted average assumptions used for determining fair value of options
Risk-free interest rate, Minimum (as a percent)	0.17%	2.11%	1.07%
Risk-free interest rate, Maximum (as a percent)	1.60%	2.72%	2.28%
Expected volatility, Minimum (as a percent)	45.46%	30.90%	31.30%
Expected volatility, Maximum (as a percent)	75.21%	60.00%	51.10%
Minimum
Weighted average assumptions used for determining fair value of options
Expected term (in years)	6 months	6 months	6 months
Maximum
Weighted average assumptions used for determining fair value of options
Expected term (in years)	1 year	1 year	1 year