Revenue Recognition - Changes in contract liabilities (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Mar. 31, 2020	Mar. 31, 2020
Deferred revenue
Balance at beginning of period		$ 30,688
Additions		48,755
Deductions		(53,483)
Balance at end of period	$ 25,960	25,960
Deferred revenue, net of current portion
Balance at beginning of period		5,801
Deductions		(540)
Balance at end of period	5,261	5,261
Change in contract with customers
Revenue recognized	$ 6,400	$ 28,200