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Long -Term Debt and Capital Leases - Narrative (Details) - USD ($) $ in Thousands |  | 1 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Nov. 07, 2012 | Feb. 29, 2012 | Jun. 30, 2017 | Jun. 30, 2016 | Feb. 14, 2012 | Oct. 21, 2011
Long Term Debt and Capital Leases (Additional Textual) [Abstract] |  |  |  |  |  |
Long-term Debt, Maturities, Repayments of Principal in 2020 |  |  | $ 400,000 |  |  |
Future Principal Maturities of Long-term Debt Beyond 2022 |  |  | 300,000 |  |  |
Capital Lease Obligations |  |  | $ 190 | $ 748 |  |
US Dollar Denominated Borrowings [Member] |  |  |  |  |  |
Long-Term Debt and Capital Leases (Textual) [Abstract] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  | 0.00% | 0.00% |  |
Capital Lease Obligations [Member] |  |  |  |  |  |
Long-Term Debt and Capital Leases (Textual) [Abstract] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  | 3.90% | 3.90% |  |
2.650% Senior Notes due 2019 [Member] |  |  |  |  |  |
Long-Term Debt and Capital Leases (Textual) [Abstract] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 2.65% |  |  |  |  |
Debt Instrument, Unamortized Discount |  |  | $ 200 | $ 300 |  |
Long Term Debt and Capital Leases (Additional Textual) [Abstract] |  |  |  |  |  |
Proceeds from Issuance of Senior Long-term Debt | $ 400,000 |  |  |  |  |
3.875% Senior Unsecured Notes Due in 2022 [Member] |  |  |  |  |  |
Long-Term Debt and Capital Leases (Textual) [Abstract] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  | 3.875% |
Debt Instrument, Unamortized Discount |  |  | 200 | $ 200 |  |
Long Term Debt and Capital Leases (Additional Textual) [Abstract] |  |  |  |  |  |
Proceeds from Issuance of Senior Long-term Debt |  | $ 300,000 |  |  |  |
2016 Credit Agreement [Member] |  |  |  |  |  |
Long-Term Debt and Capital Leases (Textual) [Abstract] |  |  |  |  |  |
Maximum Borrowing Capacity under the 2016 Credit Agreement |  |  |  |  |  | $ 600,000
Borrowing outstanding under 2016 Credit Agreement |  |  | $ 0 |  |  |
Term of Long Term Debt |  |  | 5 years |  |  |

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- 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6455398&loc=d3e45280-112737 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04.(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 + Details
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