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Income Taxes (Narratives) (Details) (USD $) | 12 Months Ended |
--- | --- | ---
Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2012 | Jul. 03, 2011
Operating Loss Carryforwards [Line Items] |  |  |  |
Change in valuation allowance for fiscal year | $ (30,500,000) | $ (1,400,000) |  |
Federal tax net operating loss carry-forwards | 290,200,000 |  |  |
State tax net operating loss carry-forwards | 97,400,000 |  |  |
Tax credit carry-forwards | 30,019,000 | 28,882,000 |  |
Amount of earnings to be reinvested indefinitely of certain foreign corporations | 78,200,000 |  |  |
Additional income tax expense on undistributed foreign earnings | 1,500,000 |  |  |
Unrecognized tax benefits | 11,600,000 | 10,898,000 | 25,746,000 | 26,010,000
Unrecognized tax benefits that would impact effective tax rate | 200,000 |  |  |
Unrecognized tax benefits resulting in adjustments to deferred tax assets | 11,000,000 |  |  |
Income tax penalties and interest expense for unrecognized tax benefits | 14,000 | 14,000 | 28,000 |
Accrued penalties and interest for unrecognized income tax benefits | 22,000 |  |  | 40,000
Federal |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Deductions from share-based compensation | 38,600,000 |  |  |
Tax credit carry-forwards | 19,100,000 |  |  |
Net operating loss carry-forwards subject to expiration | 290,200,000 |  |  |
State |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Deductions from share-based compensation | 36,000,000 |  |  |
Tax credit carry-forwards | 16,800,000 |  |  |
Net operating loss carry-forwards subject to expiration | 97,400,000 |  |  |
Foreign |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Amount of decrease in unrealized tax benefit from expiration of statute of limitations | 200,000 |  |  |
Subject To Expiration | State |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Tax credit carry-forwards | 1,200,000 |  |  |
Not Subject To Expiration | State |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Tax credit carry-forwards | 15,600,000 |  |  |
MTS IRELAND |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Operating Loss Carryforwards | 67,500,000 |  |  |
CITI MATCH AUSTRALIA |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Operating Loss Carryforwards | 12,500,000 |  |  |
INSTINET JAPAN |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Operating Loss Carryforwards | 100,000 |  |  |
SINGAPORE EXCHANGE |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Operating Loss Carryforwards | $ 1,900,000 |  |  |

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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 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 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 718 -SubTopic 740 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6419406&loc=d3e23524-113945 + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible state and local operating loss carryforwards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32632-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=29652012&loc=d3e28680-109314 + Details
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- Definition The tax effect as of the balance sheet date of the amount of future tax deductions arising from all unused tax credit carryforwards which have been reduced by a valuation allowance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32632-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Carryforwards -URI http://asc.fasb.org/extlink&oid=6506874 + Details
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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 + Details
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- Definition The amount of the unrecognized tax benefit of a position taken for which it is reasonably possible that the total amount thereof will significantly increase or decrease within twelve months of the balance sheet date. + 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) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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- Definition Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. + 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 (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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- Definition The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 + Details
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