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