Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Jun. 30, 2015	Jul. 01, 2014
Line of Credit Facility [Line Items]
Letters of Credit Outstanding, Amount	$ 2,000	$ 1,841
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	250,000
Line of Credit Facility, Amount Outstanding	70,000	52,000
Letters of Credit Outstanding, Amount	3,677	3,764
Line of Credit Facility, Remaining Borrowing Capacity	$ 176,323	$ 94,236
Debt, Weighted Average Interest Rate	1.31%	1.15%
Prudential Facility [Domain]
Line of Credit Facility [Line Items]
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate			3.19%
Long-term Debt	$ 170,000		$ 120,000
Debt Instrument, Unused Borrowing Capacity, Amount	50,000
State of Ohio Assumed Debt [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Face Amount	$ 2,359
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	1.50%
Long-term Debt	$ 2,009	$ 2,120
Term Loan [Member]
Line of Credit Facility [Line Items]
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate	1.44%	1.19%
Debt Instrument, Face Amount	$ 125,000
Long-term Debt	$ 125,000	$ 96,875
Prudential Facility - Series D [Member] | Prudential Facility [Domain]
Line of Credit Facility [Line Items]
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	3.21%
Prudential Facility - Series D [Domain] | Prudential Facility [Domain]
Line of Credit Facility [Line Items]
Long-term Debt	$ 50,000
Prudential Facility - Series C [Member] | Prudential Facility [Domain]
Line of Credit Facility [Line Items]
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	3.19%
Long-term Debt	$ 120,000