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New Accounting Pronouncements and Changes in Accounting (Details) - USD ($) $ in Thousands | Jun. 30, 2017 | Sep. 30, 2016
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Recent Accounting Pronouncements Abstract |  |
Other non-current assets | $ 115,518 | $ 218,898
Long-term debt | 3,753,799 | 3,702,157
Accounting Standards Update April 2015 |  |
Recent Accounting Pronouncements Abstract |  |
Other non-current assets | (55,400) | (56,800)
Long-term debt | $ 55,400 | $ 56,800

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- Definition Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer. + 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)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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