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Debt (Details) (USD $)
 12 Months Ended
Jun. 30, 2014
Jun. 30, 2014
Term Loan [Member]
Jun. 30, 2014
State of Ohio Assumed Debt [Member]
Jul. 01, 2014
Prudential Facility [Member]
Jun. 30, 2014
Prudential Facility [Member]
Jun. 30, 2014
Minimum [Member]
Jun. 30, 2014
Maximum [Member]
Jun. 30, 2014
Revolving Credit Facility [Member]
Debt Instrument [Line Items]                
Line of credit facility unsecured borrowings amount $ 150,000,000              
Fees on credit facility           0.09% 0.175%  
Line of Credit Facility, Amount Outstanding 69,000,000              
Line of credit facility, amount outstanding 1,841,000             8,723,000
Debt Instrument, Face Amount   100,000,000 2,359,000   125,000,000      
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate   1.06% 1.50% 3.19%        
Line of Credit Facility, Remaining Borrowing Capacity 72,277,000              
Debt, Weighted Average Interest Rate 0.85%              
Long-term Debt   $ 99,375,000 $ 2,337,000 $ 120,000,000