Summary of Significant Accounting Policies - Contract Balances (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Jun. 30, 2020
Accounts receivables, contract assets and deferred revenue
Accounts receivable	$ 435,254		$ 435,254		$ 236,134
Unbilled receivables (included in accounts receivable)	19,031		19,031		15,688
Deferred revenue	62,635		62,635		24,417
Deferred revenue, long-term (included in other long-term liabilities)	1,970		1,970		$ 2,236
Revenue recognized that was included in opening deferred revenue balance	47,800	$ 22,500	21,400	$ 16,100
Revenue recognized from performance obligation satisfied in prior periods	$ 1,700	$ 2,400	$ 1,600	$ 2,800