Long-Term Debt	12 Months Ended
Jun. 30, 2016
Debt Disclosure [Abstract]
Long-Term Debt	Long-Term Debt At June 30, 2015, we had an unsecured credit facility under which we could borrow, on a revolving credit basis, up to a maximum of $120 million at any one time, with potential to expand the total credit availability to $200 million subject to us obtaining consent of the issuing banks and certain other conditions. On April 8, 2016, we entered into a new unsecured revolving credit facility (“New Credit Facility”), which replaced the facility discussed above. The material terms and covenants of the New Credit Facility are substantially similar to our previous credit facility. The New Credit Facility provides that we may borrow, on a revolving credit basis, up to a maximum of $150 million at any one time, with potential to expand the total credit availability to $225 million subject to us obtaining consent of the issuing banks and certain other conditions. The New Credit Facility expires on April 8, 2021, and all outstanding amounts are then due and payable. Interest is variable based upon formulas tied to LIBOR or an alternative base rate defined in the New Credit Facility, at our option. We must also pay facility fees that are tied to our then-applicable consolidated leverage ratio. Loans may be used for general corporate purposes. Due to the nature of its terms, when we have outstanding borrowings under the New Credit Facility, they will be classified as long-term debt. At June 30, 2016 and 2015, we had no borrowings outstanding under these facilities. At June 30, 2016, we had $4.7 million of standby letters of credit outstanding, which reduced the amount available for borrowing on the New Credit Facility. We paid no interest in 2016 and 2015. The New Credit Facility contains certain restrictive covenants, including limitations on indebtedness, asset sales and acquisitions. There are two principal financial covenants: an interest expense test that requires us to maintain an interest coverage ratio not less than 2.5 to 1 at the end of each fiscal quarter; and an indebtedness test that requires us to maintain a consolidated leverage ratio not greater than 3 to 1 at all times. The interest coverage ratio is calculated by dividing Consolidated EBIT by Consolidated Interest Expense, and the leverage ratio is calculated by dividing Consolidated Debt by Consolidated EBITDA. All financial terms used in the covenant calculations are defined more specifically in the New Credit Facility.

Long-Term Debt

At June 30, 2015, we had an unsecured credit facility under which we could borrow, on a revolving credit basis, up to a maximum of $120 million at any one time, with potential to expand the total credit availability to $200 million subject to us obtaining consent of the issuing banks and certain other conditions.

On April 8, 2016, we entered into a new unsecured revolving credit facility (“New Credit Facility”), which replaced the facility discussed above. The material terms and covenants of the New Credit Facility are substantially similar to our previous credit facility.

The New Credit Facility provides that we may borrow, on a revolving credit basis, up to a maximum of $150 million at any one time, with potential to expand the total credit availability to $225 million subject to us obtaining consent of the issuing banks and certain other conditions. The New Credit Facility expires on April 8, 2021, and all outstanding amounts are then due and payable. Interest is variable based upon formulas tied to LIBOR or an alternative base rate defined in the New Credit Facility, at our option. We must also pay facility fees that are tied to our then-applicable consolidated leverage ratio. Loans may be used for general corporate purposes. Due to the nature of its terms, when we have outstanding borrowings under the New Credit Facility, they will be classified as long-term debt.

At June 30, 2016 and 2015, we had no borrowings outstanding under these facilities. At June 30, 2016, we had $4.7 million of standby letters of credit outstanding, which reduced the amount available for borrowing on the New Credit Facility. We paid no interest in 2016 and 2015.

The New Credit Facility contains certain restrictive covenants, including limitations on indebtedness, asset sales and acquisitions. There are two principal financial covenants: an interest expense test that requires us to maintain an interest coverage ratio not less than 2.5 to 1 at the end of each fiscal quarter; and an indebtedness test that requires us to maintain a consolidated leverage ratio not greater than 3 to 1 at all times. The interest coverage ratio is calculated by dividing Consolidated EBIT by Consolidated Interest Expense, and the leverage ratio is calculated by dividing Consolidated Debt by Consolidated EBITDA. All financial terms used in the covenant calculations are defined more specifically in the New Credit Facility.