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Revenue and Accounts Receivable (Tables) | 9 Months Ended
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Jun. 30, 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 and nine months ended June 30, 2022 and 2021.
| Three Months Ended June 30, 2022 |  | Three Months Ended June 30, 2021
| Distribution |  | Pipeline and Storage |  | Distribution |  | Pipeline and Storage
| (In thousands)
Gas sales revenues: |  |  |  |  |  |  |
Residential | $ | 441,806 |  |  | $ | — |  |  | $ | 336,016 |  |  | $ | — |
Commercial | 231,309 |  |  | — |  |  | 157,314 |  |  | — |
Industrial | 57,045 |  |  | — |  |  | 25,348 |  |  | — |
Public authority and other | 13,080 |  |  | — |  |  | 8,870 |  |  | — |
Total gas sales revenues | 743,240 |  |  | — |  |  | 527,548 |  |  | — |
Transportation revenues | 27,216 |  |  | 186,405 |  |  | 25,903 |  |  | 164,619 |
Miscellaneous revenues | 2,453 |  |  | 3,104 |  |  | 2,615 |  |  | 3,895 |
Revenues from contracts with customers | 772,909 |  |  | 189,509 |  |  | 556,066 |  |  | 168,514 |
Alternative revenue program revenues (1) | (77) |  |  | (6,097) |  |  | 2,206 |  |  | (5,527) |
Other revenues | 479 |  |  | — |  |  | 478 |  |  | — |
Total operating revenues | $ | 773,311 |  |  | $ | 183,412 |  |  | $ | 558,750 |  |  | $ | 162,987 |
| Nine Months Ended June 30, 2022 |  | Nine Months Ended June 30, 2021
| Distribution |  | Pipeline and Storage |  | Distribution |  | Pipeline and Storage
| (In thousands)
Gas sales revenues: |  |  |  |  |  |  |
Residential | $ | 2,108,349 |  |  | $ | — |  |  | $ | 1,821,570 |  |  | $ | — |
Commercial | 910,400 |  |  | — |  |  | 692,443 |  |  | — |
Industrial | 160,098 |  |  | — |  |  | 81,122 |  |  | — |
Public authority and other | 54,668 |  |  | — |  |  | 42,159 |  |  | — |
Total gas sales revenues | 3,233,515 |  |  | — |  |  | 2,637,294 |  |  | — |
Transportation revenues | 87,886 |  |  | 514,114 |  |  | 84,643 |  |  | 480,945 |
Miscellaneous revenues | 7,732 |  |  | 11,931 |  |  | 8,336 |  |  | 12,921 |
Revenues from contracts with customers | 3,329,133 |  |  | 526,045 |  |  | 2,730,273 |  |  | 493,866 |
Alternative revenue program revenues (1) | 25,663 |  |  | (15,968) |  |  | (13,666) |  |  | (16,998) |
Other revenues | 1,483 |  |  | — |  |  | 1,467 |  |  | — |
Total operating revenues | $ | 3,356,279 |  |  | $ | 510,077 |  |  | $ | 2,718,074 |  |  | $ | 476,868 |
(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 regulatorily determined revenue benchmark.
Allowance for Credit Loss Activity | Rollforwards of our allowance for uncollectible accounts for the three and nine months ended June 30, 2022 and 2021 are presented in the table below. The allowance excludes the gas cost portion of customers’ bills for approximately 79 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 June 30, 2022
| (In thousands)
Beginning balance, March 31, 2022 | $ | 62,213 |
Current period provisions | 5,657 |
Write-offs charged against allowance | (7,430) |
Recoveries of amounts previously written off | 328 |
Ending balance, June 30, 2022 | $ | 60,768 |
| Three Months Ended June 30, 2021
| (In thousands)
Beginning balance, March 31, 2021 | $ | 44,680 |
Current period provisions | 14,403 |
Write-offs charged against allowance | (2,875) |
Recoveries of amounts previously written off | 437 |
Ending balance, June 30, 2021 | $ | 56,645 |
| Nine Months Ended June 30, 2022
| (In thousands)
Beginning balance, September 30, 2021 | $ | 64,471 |
Current period provisions | 17,733 |
Write-offs charged against allowance | (22,888) |
Recoveries of amounts previously written off | 1,452 |
Ending balance, June 30, 2022 | $ | 60,768 |
| Nine Months Ended June 30, 2021
| (In thousands)
Beginning balance, September 30, 2020 | $ | 29,949 |
Current period provisions | 32,872 |
Write-offs charged against allowance | (7,544) |
Recoveries of amounts previously written off | 1,368 |
Ending balance, June 30, 2021 | $ | 56,645 |

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