Description of Business and Basis of Presentation - Recent Accounting Pronouncements (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended |
|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2016 |
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| Organization, Consolidation and Presentation of Financial Statements [Abstract] | ||
| Employee services share-based compensation, tax benefit realized | $ 0.1 | $ 5.8 |
| X | ||||||||||
- Definition Effective Income Tax Rate Reconciliation, Share-based Compensation, Excess Tax Benefit, Amount No definition available.
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| X | ||||||||||
- References No definition available.
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