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DEBT (Details) |  |  | 12 Months Ended |
--- | --- | --- | --- | ---
Jul. 13, 2016 USD ($) item | Mar. 19, 2015 USD ($) | Sep. 30, 2016 USD ($) letter | Sep. 30, 2015 USD ($) | Oct. 01, 2016 USD ($)
Debt |  |  |  |  |
Unsecured long-term debt |  |  | $ 500,000,000 | $ 540,000,000 |
Long-term debt due within one year |  |  |  | 40,000,000 |
Long-term debt |  |  | 500,000,000 | 500,000,000 |
Unamortized discount and debt issuance costs |  |  | (8,153,000) | (8,463,000) |
Less unamortized debt issuance costs |  |  |  | (906,000) |
Unamortized discount and debt issuance costs, noncurrent |  |  | $ (8,153,000) | (7,557,000) |
Issued to support international operations |  |  |  |  |
Debt |  |  |  |  |
Number of letters of credit outstanding | letter |  |  | 2 |  |
Letters of credit outstanding/issued |  |  | $ 12,000,000 |  |
Unsecured revolving credit facility mature May 25, 2017 |  |  |  |  |
Debt |  |  |  |  |
Terminated credit facility | $ 300,000,000 |  |  |  |
Borrowing amount outstanding | 0 |  |  |  |
Unsecured revolving credit facility mature May 25, 2017 | Letter of credit |  |  |  |  |
Debt |  |  |  |  |
Letters of credit outstanding/issued | 40,300,000 |  |  |  |
Unsecured revolving credit facility mature on July 13, 2021 |  |  |  |  |
Debt |  |  |  |  |
Borrowing amount | $ 300,000,000 |  | 300,000,000 |  |
Borrowing amount outstanding |  |  | $ 0 |  |
Commitment fee (as a percent) |  |  | 0.15% |  |
Maximum limit of priority debt on net worth | 17.50% |  |  |  |
Financial covenants | item | 1 |  |  |  |
Letters of credit outstanding/issued |  |  |  |  | $ 1,500,000
Available borrowing capacity excluding letters of credit transaction |  |  | $ 261,200,000 |  | $ 259,700,000
Unsecured revolving credit facility mature on July 13, 2021 | Maximum |  |  |  |  |
Debt |  |  |  |  |
Funded leverage ratio (as a percent) |  |  | 50.00% |  |
Commitment fee (as a percent) |  |  | 0.30% |  |
Unsecured revolving credit facility mature on July 13, 2021 | Minimum |  |  |  |  |
Debt |  |  |  |  |
Commitment fee (as a percent) |  |  | 0.15% |  |
Unsecured revolving credit facility mature on July 13, 2021 | London Interbank Offered Rate (LIBOR) |  |  |  |  |
Debt |  |  |  |  |
Interest spread on borrowings (as a percent) |  |  | 1.125% |  |
Unsecured revolving credit facility mature on July 13, 2021 | London Interbank Offered Rate (LIBOR) | Maximum |  |  |  |  |
Debt |  |  |  |  |
Interest spread on borrowings (as a percent) |  |  | 1.75% |  |
Unsecured revolving credit facility mature on July 13, 2021 | London Interbank Offered Rate (LIBOR) | Minimum |  |  |  |  |
Debt |  |  |  |  |
Interest spread on borrowings (as a percent) |  |  | 1.125% |  |
Unsecured revolving credit facility mature on July 13, 2021 | Letter of credit |  |  |  |  |
Debt |  |  |  |  |
Available borrowing capacity to use for letters of credit |  |  | $ 75,000,000 |  |
Number of letters of credit outstanding | letter |  |  | 3 |  |
Letters of credit outstanding/issued |  |  | $ 38,800,000 |  |
Unsecured senior notes issued July 21, 2009 |  |  |  |  |
Debt |  |  |  |  |
Unsecured long-term debt |  |  | 40,000,000 |  |
Annual principal repayments |  |  |  | 40,000,000 |
Due July 21, 2016 |  |  |  |  |
Debt |  |  |  |  |
Unsecured long-term debt |  |  |  | 40,000,000 |
Unamortized discount and debt issuance costs |  |  |  | (498,000) |
Unsecured senior notes issued March 19, 2015 |  |  |  |  |
Debt |  |  |  |  |
Unsecured long-term debt |  |  | 500,000,000 | 500,000,000 |
Unamortized discount and debt issuance costs |  |  | (8,153,000) | $ (7,965,000) |
Debt issued |  | $ 500,000,000 | $ 500,000,000 |  |
Long-term debt stated interest rate percentage |  | 4.65% |  |  |
Term of debt |  | 10 years |  |  |

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- Definition Number of covenants that limit or prohibit certain actions or activities without the lender's prior consent within a specified period of time or until certain specified targets are achieved for example, reduction of the debt or an increase in net worth to a specified amount). + References No definition available. + Details
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- Definition It represents amount of Line of credit facility terminated. + References No definition available. + Details
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- Definition Amount of long-term debt, before unamortized debt issuance cost, scheduled to be repaid within one year or the normal operating cycle, if longer. + References No definition available. + Details
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- Definition Amount of long-term debt, before unamortized discount and debt issuance cost. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer. + References No definition available. + Details
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- Definition It represents the maximum percentage of priority debt that can be allowed on the net worth of the Company. + References No definition available. + Details
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- Definition The noncurrent portion of the remaining balance of debt discount and issuance costs that were capitalized and are being amortized against income over the lives of the respective bond issues. + References No definition available. + Details
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- Definition The remaining balance of debt issuance expenses current and noncurrent that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset. + References No definition available. + Details
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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + 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 Reference 2: 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(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: 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 + Details
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- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the 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)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: 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(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: 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 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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