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Long-Term Debt and Capital Leases (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Jun. 30, 2017
Long-term Debt and Capital Lease Obligations Current and Noncurrent
Capital leases	$ 0	$ 190
Long-term Debt and Capital Lease Obligations, Including Current Maturities	997,579	699,844
Debt Issuance Costs, Net	(6,808)	(4,663)
Long-term Debt, Current Maturities	399,266	0
Long-term Debt, Current Maturities [Abstract]
Capital Lease, Current Maturities	0	(190)
Total Current Maturities	(399,266)	(190)
Long-term Debt and Capital Leases, Less Current Maturities	591,505	694,991
2.650% Senior Notes due 2019 [Member]
Long-term Debt and Capital Lease Obligations Current and Noncurrent
Long-term Debt	399,898	399,823
3.875% Senior Unsecured Notes Due in 2022 [Member]
Long-term Debt and Capital Lease Obligations Current and Noncurrent
Long-term Debt	299,868	$ 299,831
4.625% Senior Unsecured Notes Due in 2028
Long-term Debt and Capital Lease Obligations Current and Noncurrent
Long-term Debt	$ 297,813

X

- Definition

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

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