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Income Taxes - Tax Credits and Benefits (Details) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2015
Valuation allowance      
Valuation allowance percentage established for domestic and foreign net deferred tax assets 100.00%    
Aggregate changes in the balance of gross unrecognized tax benefits      
Balance at beginning of year $ 16,643 $ 17,023 $ 17,169
Tax positions related to current year: Additions 1,190 1,811 726
Tax positions related to prior years: Additions 299 449 29
Tax positions related to prior years: Reductions (2,313) (2,640) (901)
Balance at end of year 15,819 16,643 $ 17,023
Reduction in uncertain tax position due to lapse of various statutes of limitation $ 100    
Subsequent period within which no material changes in unrecognized tax benefits are expected 12 months    
Uncertain tax benefits that, if realized, would affect the effective tax rate $ 11,900    
Accrued interest and penalties related to uncertain tax positions 200 $ 500  
Swiss total assessment settlement $ 100    
Minimum      
Aggregate changes in the balance of gross unrecognized tax benefits      
Statutes of limitations with respect to jurisdictions (in years) 4 years    
Maximum      
Aggregate changes in the balance of gross unrecognized tax benefits      
Statutes of limitations with respect to jurisdictions (in years) 10 years    
Federal | Research and development      
Income Tax Contingency      
Tax credits $ 18,600    
State | Research and development      
Income Tax Contingency      
Tax credits $ 18,700