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Revenue and Accounts Receivable (Tables) | 3 Months Ended
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Dec. 31, 2022
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenue | The following tables disaggregate our revenue from contracts with customers by customer type and segment and provide a reconciliation to total operating revenues, including intersegment revenues, for the three months ended December 31, 2022 and 2021.
| Three Months Ended December 31, 2022 |  | Three Months Ended December 31, 2021
| Distribution |  | Pipeline and Storage |  | Distribution |  | Pipeline and Storage
| (In thousands)
Gas sales revenues: |  |  |  |  |  |  |
Residential | $ | 953,051 |  |  | $ | — |  |  | $ | 575,841 |  |  | $ | — |
Commercial | 388,667 |  |  | — |  |  | 250,761 |  |  | — |
Industrial | 59,215 |  |  | — |  |  | 48,681 |  |  | — |
Public authority and other | 22,826 |  |  | — |  |  | 15,192 |  |  | — |
Total gas sales revenues | 1,423,759 |  |  | — |  |  | 890,475 |  |  | — |
Transportation revenues | 32,162 |  |  | 195,252 |  |  | 27,869 |  |  | 163,859 |
Miscellaneous revenues | 2,282 |  |  | 2,722 |  |  | 2,599 |  |  | 6,543 |
Revenues from contracts with customers | 1,458,203 |  |  | 197,974 |  |  | 920,943 |  |  | 170,402 |
Alternative revenue program revenues (1) | (18,322) |  |  | (11,345) |  |  | 50,986 |  |  | (7,484) |
Other revenues | 545 |  |  | — |  |  | 493 |  |  | — |
Total operating revenues | $ | 1,440,426 |  |  | $ | 186,629 |  |  | $ | 972,422 |  |  | $ | 162,918 |
(1) In our distribution segment, we have weather-normalization adjustment mechanisms that serve to mitigate the effects of weather on our revenue. Additionally, APT has a regulatory mechanism that requires that we share with its tariffed customers 75% of the difference between the total non-tariffed revenues earned during a test period and a revenue benchmark.
Allowance for Credit Loss Activity | Rollforwards of our allowance for uncollectible accounts for the three months ended December 31, 2022 and 2021 are presented in the table below. The allowance excludes the gas cost portion of customers’ bills for approximately 81 percent of our customers as we have the ability to collect these gas costs through our gas cost recovery mechanisms in most of our jurisdictions.
| Three Months Ended December 31, 2022
| (In thousands)
Beginning balance, September 30, 2022 | $ | 49,993 |
Current period provisions | 7,233 |
Write-offs charged against allowance | (10,421) |
Recoveries of amounts previously written off | 808 |
Ending balance, December 31, 2022 | $ | 47,613 |
| Three Months Ended December 31, 2021
| (In thousands)
Beginning balance, September 30, 2021 | $ | 64,471 |
Current period provisions | 6,370 |
Write-offs charged against allowance | (6,429) |
Recoveries of amounts previously written off | 522 |
Ending balance, December 31, 2021 | $ | 64,934 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130545-203045 + Details
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