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Income Taxes - Income Tax Text (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended 1 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2012
Mar. 31, 2014
State and Local Jurisdiction [Member]
Mar. 31, 2013
Internal Revenue Service (IRS) [Member]
Jun. 30, 2014
Research Tax Credit Carryforward [Member]
Jun. 30, 2014
Research Tax Credit Carryforward [Member]
State and Local Jurisdiction [Member]
Income Tax Disclosure [Line Items]              
State research and development tax credit carryforwards             $ 7,738
State research and development tax credit carryforwards attributable to stock option exercises           4,755  
Unrecognized tax benefits, decrease resulting from resolution of tax audits       1,089 2,017    
Reduction in interest expense resulting from resolution of tax audits       46 266    
Deferred tax liabilities, cumulative undistributed foreign earnings 22,737            
Tax benefit resulting from stock option transactions 7,041 1,734 3,421        
Federal research and development tax credit   3,708 1,455        
Unrecognized tax benefits that would impact effective tax rate, if recognized 8,168 6,499          
Settlements and releases due to the lapse of statutes of limitations 1,726 2,470 225        
Unrecognized tax benefits, income tax penalties and interest accrued $ 818 $ 797