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Income Taxes (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2013
Operating Loss Carryforwards [Line Items] |  |  |  |
Change in valuation allowance for fiscal year | $ 3,800 | $ 25,100 |  |
Federal tax net operating loss carry-forwards | 322,700 |  |  |
State tax net operating loss carry-forwards | 138,300 |  |  |
Tax credit carry-forwards | 32,730 | 30,824 | $ 30,019 |
Amount of earnings to be reinvested indefinitely of certain foreign corporations | 10,300 |  |  |
Unrecognized income tax (benefit) for undistributed foreign earnings | 300 |  |  |
Unrecognized tax benefits | 11,653 | 11,359 | 11,600 | $ 10,898
Estimated interest and penalties related to underpayment of income taxes, less than | 100 | $ 100 | $ 100 |
Foreign |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Tax credit carry-forwards | 7,500 |  |  |
State |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Deductions from share-based compensation | 36,000 |  |  |
Tax credit carry-forwards | 16,200 |  |  |
State | Subject To Expiration |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Tax credit carry-forwards | 900 |  |  |
State | Not Subject To Expiration |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Tax credit carry-forwards | 15,300 |  |  |
MTS IRELAND |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Operating Loss Carryforwards | 41,400 |  |  |
CITI MATCH AUSTRALIA |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Operating Loss Carryforwards | 9,400 |  |  |
INSTINET JAPAN |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Operating Loss Carryforwards | 400 |  |  |
Federal |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Deductions from share-based compensation | 38,600 |  |  |
Tax credit carry-forwards | 22,100 |  |  |
Federal | Subject To Expiration |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Tax credit carry-forwards | $ 14,200 |  |  |

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- Definition Amount of increase in additional paid in capital (APIC) resulting from a tax benefit associated with share-based compensation plan other than an employee stock ownership plan (ESOP). Includes, but is not limited to, excess tax benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 740 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=65880886&loc=d3e23524-113945 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
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