Debt - Summary of Interest Expense on Notes and Credit Facilities (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Debt Disclosure [Abstract]
Interest expense related to contractual interest coupon	$ 3,073	$ 2,489	$ 9,231	$ 7,119
Interest expense related to amortization of debt discount	1,073	863	3,090	2,488
Interest expense related to amortization of debt issuance costs	342	392	1,005	1,157
Total interest expense recognized	$ 4,488	$ 3,744	$ 13,326	$ 10,764