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Summary Of Significant Accounting Policies (Summary Of Contract Balances) (Details) - USD ($) $ in Thousands | Sep. 30, 2018 | Jun. 30, 2018
--- | --- | ---
Contract assets |  |
Accounts receivable, net | $ 463,743 | $ 483,681
Contract liabilities |  |
Deferred revenue, current | (64,822) | (60,828)
Deferred revenue, non-current | (73,810) | (71,596)
Accounts Receivable, Net [Member] |  |
Contract assets |  |
Accounts receivable, net | 463,743 | 483,681
Prepaid Expenses And Other Current Assets [Member] |  |
Contract assets |  |
Unbilled revenue, current | 12,861 | 13,342
Prepaid Taxes And Other Non Current Assets [Member] |  |
Contract assets |  |
Unbilled revenue, non-current | 3,718 | 2,973
Deferred Revenue Current Liabilities [Member] |  |
Contract liabilities |  |
Deferred revenue, current | (64,822) | (60,828)
Deferred Revenue Non-Current Liabilities [Member] |  |
Contract liabilities |  |
Deferred revenue, non-current | $ (73,810) | $ (71,596)

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