Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001692115-20-000064-index-headers.html | 2020-11-05 16:46:16 | |
| 0001692115-20-000064-index.html | 2020-11-05 16:46:16 | |
| 0001692115-20-000064.txt | 2020-11-05 16:46:16 | |
 0001692115-20-000064-xbrl.zip | 455385 | 2020-11-05 16:46:16 |
| FilingSummary.xml | 29713 | 2020-11-05 16:46:16 |
| Financial_Report.xlsx | 100962 | 2020-11-05 16:46:16 |
| MetaLinks.json | 612599 | 2020-11-05 16:46:16 |
| R1.htm | 62474 | 2020-11-05 16:46:16 |
| R10.htm | 111508 | 2020-11-05 16:46:16 |
| R11.htm | 14926 | 2020-11-05 16:46:16 |
| R12.htm | 91498 | 2020-11-05 16:46:16 |
| R13.htm | 232252 | 2020-11-05 16:46:16 |
| R14.htm | 89984 | 2020-11-05 16:46:16 |
| R15.htm | 56614 | 2020-11-05 16:46:16 |
| R16.htm | 98188 | 2020-11-05 16:46:16 |
| R17.htm | 73843 | 2020-11-05 16:46:16 |
| R18.htm | 108127 | 2020-11-05 16:46:16 |
| R19.htm | 12262 | 2020-11-05 16:46:16 |
| R2.htm | 129944 | 2020-11-05 16:46:16 |
| R20.htm | 78159 | 2020-11-05 16:46:16 |
| R21.htm | 234419 | 2020-11-05 16:46:16 |
| R22.htm | 87340 | 2020-11-05 16:46:16 |
| R23.htm | 37645 | 2020-11-05 16:46:16 |
| R24.htm | 16595 | 2020-11-05 16:46:16 |
| R25.htm | 12414 | 2020-11-05 16:46:16 |
| R26.htm | 32008 | 2020-11-05 16:46:16 |
| R27.htm | 11591 | 2020-11-05 16:46:16 |
| R28.htm | 17772 | 2020-11-05 16:46:16 |
| R29.htm | 32624 | 2020-11-05 16:46:16 |
| R3.htm | 10754 | 2020-11-05 16:46:16 |
| R30.htm | 8108 | 2020-11-05 16:46:16 |
| R31.htm | 9087 | 2020-11-05 16:46:16 |
| R32.htm | 26493 | 2020-11-05 16:46:16 |
| R33.htm | 31944 | 2020-11-05 16:46:16 |
| R34.htm | 8279 | 2020-11-05 16:46:16 |
| R35.htm | 13023 | 2020-11-05 16:46:16 |
| R36.htm | 30980 | 2020-11-05 16:46:16 |
| R37.htm | 143928 | 2020-11-05 16:46:16 |
| R38.htm | 102843 | 2020-11-05 16:46:16 |
| R39.htm | 88963 | 2020-11-05 16:46:16 |
| R4.htm | 102087 | 2020-11-05 16:46:16 |
| R40.htm | 4510 | 2020-11-05 16:46:16 |
| R41.htm | 124819 | 2020-11-05 16:46:16 |
| R42.htm | 11966 | 2020-11-05 16:46:16 |
| R43.htm | 7481 | 2020-11-05 16:46:16 |
| R44.htm | 4370 | 2020-11-05 16:46:16 |
| R45.htm | 38116 | 2020-11-05 16:46:16 |
| R5.htm | 63410 | 2020-11-05 16:46:16 |
| R6.htm | 129466 | 2020-11-05 16:46:16 |
| R7.htm | 99550 | 2020-11-05 16:46:16 |
| R8.htm | 127483 | 2020-11-05 16:46:16 |
| R9.htm | 75177 | 2020-11-05 16:46:16 |
| report.css | 2767 | 2020-11-05 16:46:16 |
| Show.js | 1085 | 2020-11-05 16:46:16 |
| swx-20200930.htm | 3221282 | 2020-11-05 16:46:16 |
| swx-20200930.xsd | 49806 | 2020-11-05 16:46:16 |
| swx-20200930_cal.xml | 112736 | 2020-11-05 16:46:16 |
| swx-20200930_def.xml | 347819 | 2020-11-05 16:46:16 |
| swx-20200930_htm.xml | 2915792 | 2020-11-05 16:46:16 |
| swx-20200930_lab.xml | 609392 | 2020-11-05 16:46:16 |
| swx-20200930_pre.xml | 411398 | 2020-11-05 16:46:16 |
| swxexhibit100193020.htm | 211267 | 2020-11-05 16:46:16 |
| swxexhibit100293020.htm | 192405 | 2020-11-05 16:46:16 |
| swxexhibit100393020.htm | 159902 | 2020-11-05 16:46:16 |
| swxexhibit100493020.htm | 135447 | 2020-11-05 16:46:16 |
| swxexhibit310193020.htm | 19962 | 2020-11-05 16:46:16 |
| swxexhibit310293020.htm | 20074 | 2020-11-05 16:46:16 |
| swxexhibit320193020.htm | 8823 | 2020-11-05 16:46:16 |
| swxexhibit320293020.htm | 8659 | 2020-11-05 16:46:16 |