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Long-Term Debt and Lines of Credit - Modification of Credit Agreements (Details) - USD ($) | Mar. 31, 2018 | Sep. 30, 2017 | Dec. 01, 2016 | Feb. 28, 2015
--- | --- | --- | --- | ---
Debt Instrument [Line Items] |  |  |  |
Interest rate term loans (up to) | $ 179,761,000 | $ 186,476,000 |  |
Silver Nip Citrus | Loans Payable |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Interest rate term loans (up to) |  |  |  | $ 7,000,000
Limited guaranty and security agreement |  |  | $ 8,000,000 | $ 7,000,000

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- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: 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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