Summary Of Significant Accounting Policies (Summary Of Contract Balances) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Jun. 30, 2020
Contract assets
Accounts receivable, net	$ 509,364	$ 474,643
Contract liabilities
Deferred revenue, current	(105,238)	(98,617)
Deferred revenue, non-current	(86,899)	(87,307)
Accounts Receivable, Net [Member]
Contract assets
Accounts receivable, net	509,364	474,643
Prepaid Expenses And Other Current Assets [Member]
Contract assets
Unbilled revenue, current	9,453	9,452
Prepaid Taxes And Other Non Current Assets [Member]
Contract assets
Unbilled revenue, non-current	5,885	6,957
Deferred Revenue Current Liabilities [Member]
Contract liabilities
Deferred revenue, current	(105,238)	(98,617)
Deferred Revenue Non-Current Liabilities [Member]
Contract liabilities
Deferred revenue, non-current	$ (86,899)	$ (87,307)