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Income Taxes Narrative (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2013
Operating Loss Carryforwards, Expiration Date 2015 to 2034    
Deferred Tax Assets, Valuation Allowance $ 650 $ 700  
Income Taxes Paid 61,885 83,014 $ 54,815
Unrecognized Tax Benefits 7,104 7,834 4,890
Unrecognized Tax Benefits that Would Impact Effective Tax Rate 5,193 5,366  
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued 1,120 1,315  
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense (155) $ (582) $ (60)
Internal Revenue Service (IRS) [Member]      
Operating Loss Carryforwards 6,903    
State and Local Jurisdiction [Member]      
Operating Loss Carryforwards 1,643    
Minimum [Member]      
Expiration of statutes of limitations impact on UTB balance 1,500    
Maximum [Member]      
Expiration of statutes of limitations impact on UTB balance $ 2,500