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Captive Insurance Collateral | 6 Months Ended
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Mar. 31, 2021
Investments Debt And Equity Securities [Abstract] |
Captive Insurance Collateral | 5) Captive Insurance Collateral The Company considers all of its captive insurance collateral to be Level 1 available-for-sale investments. Investments at March 31, 2021 consist of the following (in thousands):
|  | Amortized Cost |  |  | Gross Unrealized Gain |  |  | Gross Unrealized (Loss) |  |  | Fair Value |
Cash and Receivables |  | $ | 913 |  |  | $ | — |  |  | $ | — |  |  | $ | 913 |
U.S. Government Sponsored Agencies |  |  | 47,154 |  |  |  | 134 |  |  |  | (60 | ) |  |  | 47,228 |
Corporate Debt Securities |  |  | 19,020 |  |  |  | 1,009 |  |  |  | (56 | ) |  |  | 19,973 |
Foreign Bonds and Notes |  |  | 1,487 |  |  |  | 52 |  |  |  | — |  |  |  | 1,539 |
Total |  | $ | 68,574 |  |  | $ | 1,195 |  |  | $ | (116 | ) |  | $ | 69,653 |
Investments at September 30, 2020 consist of the following (in thousands):
|  | Amortized Cost |  |  | Gross Unrealized Gain |  |  | Gross Unrealized (Loss) |  |  | Fair Value |
Cash and Receivables |  | $ | 1,152 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,152 |
U.S. Government Sponsored Agencies |  |  | 42,032 |  |  |  | 229 |  |  |  | (26 | ) |  |  | 42,235 |
Corporate Debt Securities |  |  | 21,666 |  |  |  | 1,660 |  |  |  | — |  |  |  | 23,326 |
Foreign Bonds and Notes |  |  | 2,992 |  |  |  | 82 |  |  |  | — |  |  |  | 3,074 |
Total |  | $ | 67,842 |  |  | $ | 1,971 |  |  | $ | (26 | ) |  | $ | 69,787 |
Maturities of investments were as follows at March 31, 2021 (in thousands):
|  | Net Carrying Amount |
Due within one year |  | $ | 6,477 |
Due after one year through five years |  |  | 61,007 |
Due after five years through ten years |  |  | 2,169 |
Total |  | $ | 69,653 |

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