Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000072909-18-000003-index-headers.html | 2018-02-23 17:34:13 | |
| 0000072909-18-000003-index.html | 2018-02-23 17:34:13 | |
| 0000072909-18-000003.txt | 2018-02-23 17:34:13 | |
 0000072909-18-000003-xbrl.zip | 448949 | 2018-02-23 17:34:13 |
| FilingSummary.xml | 54173 | 2018-02-23 17:34:13 |
| Financial_Report.xlsx | 146229 | 2018-02-23 17:34:13 |
| nspw-20171231.xml | 4592216 | 2018-02-23 17:34:13 |
| nspw-20171231.xsd | 113702 | 2018-02-23 17:34:13 |
| nspw-20171231_cal.xml | 142328 | 2018-02-23 17:34:13 |
| nspw-20171231_def.xml | 553648 | 2018-02-23 17:34:13 |
| nspw-20171231_lab.xml | 1373198 | 2018-02-23 17:34:13 |
| nspw-20171231_pre.xml | 798232 | 2018-02-23 17:34:13 |
| nspw1231201710-k.htm | 2570044 | 2018-02-23 17:34:13 |
| nspwex1201q42017.htm | 41040 | 2018-02-23 17:34:13 |
| nspwex2301q42017.htm | 4114 | 2018-02-23 17:34:13 |
| nspwex3101q42017.htm | 12288 | 2018-02-23 17:34:13 |
| nspwex3102q42017.htm | 12151 | 2018-02-23 17:34:13 |
| nspwex3201q42017.htm | 9436 | 2018-02-23 17:34:13 |
| nspwex9901q42017.htm | 15818 | 2018-02-23 17:34:13 |
| R1.htm | 28406 | 2018-02-23 17:34:13 |
| R10.htm | 50810 | 2018-02-23 17:34:13 |
| R11.htm | 29944 | 2018-02-23 17:34:13 |
| R12.htm | 45752 | 2018-02-23 17:34:13 |
| R13.htm | 14324 | 2018-02-23 17:34:13 |
| R14.htm | 44207 | 2018-02-23 17:34:13 |
| R15.htm | 59555 | 2018-02-23 17:34:13 |
| R16.htm | 23428 | 2018-02-23 17:34:13 |
| R17.htm | 185966 | 2018-02-23 17:34:13 |
| R18.htm | 635935 | 2018-02-23 17:34:13 |
| R19.htm | 22400 | 2018-02-23 17:34:13 |
| R2.htm | 51890 | 2018-02-23 17:34:13 |
| R20.htm | 88865 | 2018-02-23 17:34:13 |
| R21.htm | 20858 | 2018-02-23 17:34:13 |
| R22.htm | 204206 | 2018-02-23 17:34:13 |
| R23.htm | 88621 | 2018-02-23 17:34:13 |
| R24.htm | 37714 | 2018-02-23 17:34:13 |
| R25.htm | 139226 | 2018-02-23 17:34:13 |
| R26.htm | 52207 | 2018-02-23 17:34:13 |
| R27.htm | 35383 | 2018-02-23 17:34:13 |
| R28.htm | 28742 | 2018-02-23 17:34:13 |
| R29.htm | 105591 | 2018-02-23 17:34:13 |
| R3.htm | 4618 | 2018-02-23 17:34:13 |
| R30.htm | 48378 | 2018-02-23 17:34:13 |
| R31.htm | 51254 | 2018-02-23 17:34:13 |
| R32.htm | 23438 | 2018-02-23 17:34:13 |
| R33.htm | 172748 | 2018-02-23 17:34:13 |
| R34.htm | 622431 | 2018-02-23 17:34:13 |
| R35.htm | 21815 | 2018-02-23 17:34:13 |
| R36.htm | 80741 | 2018-02-23 17:34:13 |
| R37.htm | 174177 | 2018-02-23 17:34:13 |
| R38.htm | 89705 | 2018-02-23 17:34:13 |
| R39.htm | 38070 | 2018-02-23 17:34:13 |
| R4.htm | 14985 | 2018-02-23 17:34:13 |
| R40.htm | 134455 | 2018-02-23 17:34:13 |
| R41.htm | 50560 | 2018-02-23 17:34:13 |
| R42.htm | 35296 | 2018-02-23 17:34:13 |
| R43.htm | 13055 | 2018-02-23 17:34:13 |
| R44.htm | 10360 | 2018-02-23 17:34:13 |
| R45.htm | 10796 | 2018-02-23 17:34:13 |
| R46.htm | 19250 | 2018-02-23 17:34:13 |
| R47.htm | 17967 | 2018-02-23 17:34:13 |
| R48.htm | 10885 | 2018-02-23 17:34:13 |
| R49.htm | 27110 | 2018-02-23 17:34:13 |
| R5.htm | 5397 | 2018-02-23 17:34:13 |
| R50.htm | 9484 | 2018-02-23 17:34:13 |
| R51.htm | 33053 | 2018-02-23 17:34:13 |
| R52.htm | 16987 | 2018-02-23 17:34:13 |
| R53.htm | 248766 | 2018-02-23 17:34:13 |
| R54.htm | 6697 | 2018-02-23 17:34:13 |
| R55.htm | 11242 | 2018-02-23 17:34:13 |
| R56.htm | 36401 | 2018-02-23 17:34:13 |
| R57.htm | 126144 | 2018-02-23 17:34:13 |
| R58.htm | 121474 | 2018-02-23 17:34:13 |
| R59.htm | 4687 | 2018-02-23 17:34:13 |
| R6.htm | 91802 | 2018-02-23 17:34:13 |
| R60.htm | 14416 | 2018-02-23 17:34:13 |
| R61.htm | 100547 | 2018-02-23 17:34:13 |
| R62.htm | 112438 | 2018-02-23 17:34:13 |
| R63.htm | 46002 | 2018-02-23 17:34:13 |
| R64.htm | 6508 | 2018-02-23 17:34:13 |
| R65.htm | 12258 | 2018-02-23 17:34:13 |
| R66.htm | 12088 | 2018-02-23 17:34:13 |
| R67.htm | 10053 | 2018-02-23 17:34:13 |
| R68.htm | 21682 | 2018-02-23 17:34:13 |
| R69.htm | 28401 | 2018-02-23 17:34:13 |
| R7.htm | 114440 | 2018-02-23 17:34:13 |
| R70.htm | 8384 | 2018-02-23 17:34:13 |
| R71.htm | 103725 | 2018-02-23 17:34:13 |
| R72.htm | 37266 | 2018-02-23 17:34:13 |
| R73.htm | 24888 | 2018-02-23 17:34:13 |
| R74.htm | 18842 | 2018-02-23 17:34:13 |
| R75.htm | 26219 | 2018-02-23 17:34:13 |
| R76.htm | 14347 | 2018-02-23 17:34:13 |
| R77.htm | 28131 | 2018-02-23 17:34:13 |
| R78.htm | 16534 | 2018-02-23 17:34:13 |
| R79.htm | 47978 | 2018-02-23 17:34:13 |
| R8.htm | 8535 | 2018-02-23 17:34:13 |
| R80.htm | 5988 | 2018-02-23 17:34:13 |
| R81.htm | 15447 | 2018-02-23 17:34:13 |
| R82.htm | 36291 | 2018-02-23 17:34:13 |
| R83.htm | 25201 | 2018-02-23 17:34:13 |
| R84.htm | 37612 | 2018-02-23 17:34:13 |
| R85.htm | 63874 | 2018-02-23 17:34:13 |
| R86.htm | 33453 | 2018-02-23 17:34:13 |
| R87.htm | 11373 | 2018-02-23 17:34:13 |
| R88.htm | 14095 | 2018-02-23 17:34:13 |
| R9.htm | 31375 | 2018-02-23 17:34:13 |
| report.css | 2768 | 2018-02-23 17:34:13 |
| Show.js | 1411 | 2018-02-23 17:34:13 |