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Revenue Recognition (Tables) | 9 Months Ended
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Jun. 30, 2022
Revenue Recognition and Deferred Revenue [Abstract] |
Disaggregation of Revenue [Table Text Block] |
|  | Three Months Ended June 30, |  |  |  | Nine Months Ended June 30,
|  | 2022 |  | 2021 |  |  |  |  |  | 2022 |  | 2021
Communications |  | $ | 144,748 |  |  | $ | 116,218 |  |  |  |  |  |  | $ | 402,776 |  |  | $ | 309,460 |
Residential |  |  |  |  |  |  |  |  |  |  |  |
Single-family |  | 224,556 |  |  | 102,105 |  |  |  |  |  |  | 590,453 |  |  | 274,707 |
Multi-family and Other |  | 77,207 |  |  | 84,344 |  |  |  |  |  |  | 213,492 |  |  | 181,569 |
Total Residential |  | 301,763 |  |  | 186,449 |  |  |  |  |  |  | 803,945 |  |  | 456,276 |
Infrastructure Solutions |  |  |  |  |  |  |  |  |  |  |  |
Industrial Services |  | 15,317 |  |  | 11,972 |  |  |  |  |  |  | 45,970 |  |  | 32,560 |
Custom Power Solutions |  | 24,520 |  |  | 27,145 |  |  |  |  |  |  | 77,696 |  |  | 75,674 |
Total Infrastructure Solutions |  | 39,837 |  |  | 39,117 |  |  |  |  |  |  | 123,666 |  |  | 108,234 |
Commercial & Industrial |  | 80,953 |  |  | 64,087 |  |  |  |  |  |  | $ | 219,016 |  |  | $ | 178,700 |
Total Revenue |  | $ | 567,301 |  |  | $ | 405,871 |  |  |  |  |  |  | $ | 1,549,403 |  |  | $ | 1,052,670 |
|  | Three Months Ended June 30, 2022
|  | Communications |  | Residential |  | Infrastructure Solutions |  | Commercial & Industrial |  | Total
Fixed-price |  | $ | 94,109 |  |  | $ | 301,763 |  |  | $ | 38,126 |  |  | $ | 75,779 |  |  | $ | 509,777 |
Time-and-material |  |  | 50,639 |  |  |  | — |  |  |  | 1,711 |  |  |  | 5,174 |  |  |  | 57,524 |
Total revenue |  | $ | 144,748 |  |  | $ | 301,763 |  |  | $ | 39,837 |  |  | $ | 80,953 |  |  | $ | 567,301 |
|  | Three Months Ended June 30, 2021
|  | Communications |  | Residential |  | Infrastructure Solutions |  | Commercial & Industrial |  | Total
Fixed-price |  | $ | 81,521 |  |  | $ | 186,449 |  |  | $ | 37,241 |  |  | $ | 60,444 |  |  | $ | 365,655 |
Time-and-material |  |  | 34,697 |  |  |  | — |  |  |  | 1,876 |  |  |  | 3,643 |  |  |  | 40,216 |
Total revenue |  | $ | 116,218 |  |  | $ | 186,449 |  |  | $ | 39,117 |  |  | $ | 64,087 |  |  | $ | 405,871 |
|  | Nine Months Ended June 30, 2022
|  |  | Communications |  | Residential |  | Infrastructure Solutions |  | Commercial & Industrial |  | Total
Fixed-price |  | $ | 268,253 |  |  | $ | 803,945 |  |  | $ | 118,503 |  |  | $ | 204,985 |  |  | $ | 1,395,686 |
Time-and-material |  |  | 134,523 |  |  |  | — |  |  |  | 5,163 |  |  |  | 14,031 |  |  |  | 153,717 |
Total revenue |  | $ | 402,776 |  |  | $ | 803,945 |  |  | $ | 123,666 |  |  | $ | 219,016 |  |  | $ | 1,549,403 |
|  | Nine Months Ended June 30, 2021
|  |  | Communications |  | Residential |  | Infrastructure Solutions |  | Commercial & Industrial |  | Total
Fixed-price |  | $ | 226,086 |  |  | $ | 456,276 |  |  | $ | 102,864 |  |  | $ | 170,134 |  |  | $ | 955,360 |
Time-and-material |  |  | 83,374 |  |  |  | — |  |  |  | 5,370 |  |  |  | 8,566 |  |  |  | 97,310 |
Total revenue |  | $ | 309,460 |  |  | $ | 456,276 |  |  | $ | 108,234 |  |  | $ | 178,700 |  |  | $ | 1,052,670 |

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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 http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045 + Details
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