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Quarterly Financial Information Quarterly Financial Information Narrative (Details) - USD ($) $ in Thousands | Jun. 30, 2019 | Jun. 30, 2018
--- | --- | ---
Non-current deferred revenues | $ 54,554 | $ 40,984
Deferred revenues | $ 339,752 | 328,931
Restatement Adjustment [Member] |  |
Non-current deferred revenues |  | 23,500
Deferred revenues |  | $ (23,500)

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