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|---|---|---|
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| 0000072909-21-000013-index.html | 2021-07-29 14:11:18 | |
| 0000072909-21-000013.txt | 2021-07-29 14:11:18 | |
 0000072909-21-000013-xbrl.zip | 197844 | 2021-07-29 14:11:18 |
| FilingSummary.xml | 26463 | 2021-07-29 14:11:18 |
| Financial_Report.xlsx | 60016 | 2021-07-29 14:11:18 |
| MetaLinks.json | 501757 | 2021-07-29 14:11:18 |
| nspw-20210630.htm | 1126425 | 2021-07-29 14:11:18 |
| nspw-20210630.xsd | 38941 | 2021-07-29 14:11:18 |
| nspw-20210630_cal.xml | 67861 | 2021-07-29 14:11:18 |
| nspw-20210630_def.xml | 162916 | 2021-07-29 14:11:18 |
| nspw-20210630_htm.xml | 1089544 | 2021-07-29 14:11:18 |
| nspw-20210630_lab.xml | 470956 | 2021-07-29 14:11:18 |
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| nspwex3101q22021.htm | 10830 | 2021-07-29 14:11:18 |
| nspwex3102q22021.htm | 10816 | 2021-07-29 14:11:18 |
| nspwex3201q22021.htm | 8939 | 2021-07-29 14:11:18 |
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| R8.htm | 12906 | 2021-07-29 14:11:18 |
| R9.htm | 28416 | 2021-07-29 14:11:18 |
| report.css | 2767 | 2021-07-29 14:11:18 |
| Show.js | 1085 | 2021-07-29 14:11:18 |