Debt - Interest Rate Swap Contracts as Reflected on Balance Sheet (Details) - Designated as Hedging Instrument - Interest Rate Swaps - USD ($) $ in Thousands |
Mar. 31, 2018 |
Sep. 30, 2017 |
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| Derivatives, Fair Value [Line Items] | ||
| Total derivatives | $ 9,912 | $ 3,959 |
| Current assets: Other Current Assets | ||
| Derivatives, Fair Value [Line Items] | ||
| Assets derivatives | 3,039 | 1,098 |
| Long-term assets: Other Assets | ||
| Derivatives, Fair Value [Line Items] | ||
| Assets derivatives | 6,873 | 2,892 |
| Current Liabilities: Other Current Liabilities | ||
| Derivatives, Fair Value [Line Items] | ||
| Liability derivatives | 0 | (7) |
| Long-Term Liabilities: Other Liabilities | ||
| Derivatives, Fair Value [Line Items] | ||
| Liability derivatives | $ 0 | $ (24) |
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- Definition Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Fair value of the assets less the liabilities of a derivative or group of derivatives. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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