| Income Taxes  - Summary of Income Tax Contingencies (Details) - USD ($) $ in Thousands | 12 Months Ended | ||
|---|---|---|---|
| Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2015 | |
| Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns | |||
| Unrecognized tax benefits at the beginning of the year | $ 50,365 | $ 69,018 | $ 59,575 | 
| Increases for tax positions taken in prior years | 6,788 | 4,245 | 1,245 | 
| Decreases for tax positions taken in prior years | (246) | (1,209) | (7) | 
| Increases for tax positions taken in current year | 14,696 | 13,636 | 11,634 | 
| Decreases for settlements with taxing authorities | 0 | (8,762) | 0 | 
| Decreases for lapsing of statutes of limitations | (3,164) | (26,563) | (3,429) | 
| Unrecognized tax benefits at the end of the year | $ 68,439 | $ 50,365 | $ 69,018 | 
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available. 
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- Definition Amount of unrecognized tax benefits. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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