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| 0000072909-23-000012-index.html | 2023-10-27 15:44:12 | |
| 0000072909-23-000012.txt | 2023-10-27 15:44:12 | |
 0000072909-23-000012-xbrl.zip | 187382 | 2023-10-27 15:44:12 |
| FilingSummary.xml | 25668 | 2023-10-27 15:44:12 |
| Financial_Report.xlsx | 58722 | 2023-10-27 15:44:12 |
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| nspw-20230930.htm | 858111 | 2023-10-27 15:44:12 |
| nspw-20230930.xsd | 44184 | 2023-10-27 15:44:12 |
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| nspwex3101q32023.htm | 10755 | 2023-10-27 15:44:12 |
| nspwex3102q32023.htm | 10750 | 2023-10-27 15:44:12 |
| nspwex3201q32023.htm | 8890 | 2023-10-27 15:44:12 |
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| R9.htm | 28899 | 2023-10-27 15:44:12 |
| report.css | 2767 | 2023-10-27 15:44:12 |
| Show.js | 1085 | 2023-10-27 15:44:12 |