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Income Taxes - Additional Information (Details) - USD ($) $ in Millions | 3 Months Ended
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Sep. 30, 2016 | Sep. 30, 2015
Income Tax Disclosure [Abstract] |  |
Employee services share-based compensation, tax benefit realized | $ 5.7 |
Decrease in income taxes, federal research credit | 2.6 |
Decrease in income taxes, value of assets held within Deferred Savings Plan | 5.7 |
Deduction from the expiration of statute of limitations |  | $ 8.2
Decrease in unrecognized tax benefits is reasonably possible | $ 3.9 |

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- Definition Effective Income Tax Rate Reconciliation, Deduction, Executive Deferred Savings Plan, Amount + References No definition available. + Details
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- Definition Effective Income Tax Rate Reconciliation, Deduction, Expiration Of Statute Of Limitations + References No definition available. + Details
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- Definition Amount of decrease reasonably possible in the next twelve months for the unrecognized tax benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (d)(3) -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32718-109319 + Details
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to research tax credit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32698-109319 + Details
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