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DEBT | 3 Months Ended
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Dec. 31, 2020
Debt Disclosure [Abstract] |
DEBT | NOTE 6 DEBT We had the following unsecured long-term debt outstanding with maturities shown in the following table:
| December 31, 2020 |  | September 30, 2020
(in thousands) | Face Amount |  | Unamortized Discount and Debt Issuance Cost |  | Book Value |  | Face Amount |  | Unamortized Discount and Debt Issuance Cost |  | Book Value
Unsecured senior notes: |  |  |  |  |  |  |  |  |  |  |
Due March 19, 2025 | $ | 487,148 |  |  | $ | (5,961) |  |  | $ | 481,187 |  |  | $ | 487,148 |  |  | $ | (6,421) |  |  | $ | 480,727 |
| 487,148 |  |  | (5,961) |  |  | 481,187 |  |  | 487,148 |  |  | (6,421) |  |  | 480,727 |
Less long-term debt due within one year | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Long-term debt | $ | 487,148 |  |  | $ | (5,961) |  |  | $ | 481,187 |  |  | $ | 487,148 |  |  | $ | (6,421) |  |  | $ | 480,727 |
Senior Notes On December 20, 2018, we issued approximately $487.1 million in aggregate principal amount of 4.65 percent unsecured senior notes due 2025 (the"Company 2025 Notes"). Interest on the Company 2025 Notes is payable semi-annually on March 15 and September 15 of each year, commencing March 15, 2019. The debt issuance costs are being amortized straight-line over the stated life of the obligation, which approximates the effective interest method. Credit Facilities On November 13, 2018, we entered into a credit agreement by and among the Company, as borrower, Wells Fargo Bank, National Association, as administrative agent, and the lenders party thereto, which was amended on November 13, 2019, providing for an unsecured revolving credit facility (as amended, the “2018 Credit Facility”), that is set to mature on November 13, 2024. The 2018 Credit Facility has $750.0 million in aggregate availability with a maximum of $75.0 million available for use as letters of credit. As of December 31, 2020, there were no borrowings or letters of credit outstanding, leaving $750.0 million available to borrow under the 2018 Credit Facility. For a full description of the 2018 Credit Facility, see Note 8—Debt to the consolidated financial statements in our 2020 Annual Report on Form 10-K. As of December 31, 2020, we had three separate outstanding letters of credit with banks, in the amounts of $24.8 million, $0.5 million and $2.1 million. As of December 31, 2020, we also had a $20.0 million unsecured standalone line of credit facility, for the purpose of obtaining the issuance of international letters of credit, bank guarantees, and performance bonds. Of the $20.0 million, $1.8 million of financial guarantees were outstanding as of December 31, 2020. The applicable agreements for all unsecured debt contain additional terms, conditions and restrictions that we believe are usual and customary in unsecured debt arrangements for companies that are similar in size and credit quality. At December 31, 2020, we were in compliance with all debt covenants.

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- Definition The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -URI http://asc.fasb.org/topic&trid=2208564 + Details
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