Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000073088-12-000067-index-headers.html | 2012-04-24 18:20:55 | |
| 0000073088-12-000067-index.html | 2012-04-24 18:20:55 | |
| 0000073088-12-000067.txt | 2012-04-24 18:20:55 | |
 0000073088-12-000067-xbrl.zip | 158082 | 2012-04-24 18:20:55 |
| ex311certificationq12012.htm | 13914 | 2012-04-24 18:20:55 |
| ex312certificationq12012.htm | 13615 | 2012-04-24 18:20:55 |
| ex321certificationq12012.htm | 6900 | 2012-04-24 18:20:55 |
| ex322certificationq12012.htm | 6889 | 2012-04-24 18:20:55 |
| FilingSummary.xml | 19960 | 2012-04-24 18:20:55 |
| Financial_Report.xls | 885939 | 2012-04-24 18:20:55 |
| nwe-20120331.xml | 1026055 | 2012-04-24 18:20:55 |
| nwe-20120331.xsd | 36752 | 2012-04-24 18:20:55 |
| nwe-20120331_cal.xml | 83374 | 2012-04-24 18:20:55 |
| nwe-20120331_def.xml | 193628 | 2012-04-24 18:20:55 |
| nwe-20120331_lab.xml | 485032 | 2012-04-24 18:20:55 |
| nwe-20120331_pre.xml | 257006 | 2012-04-24 18:20:55 |
| nwe-33112x10q.htm | 1151130 | 2012-04-24 18:20:55 |
| R1.htm | 33870 | 2012-04-24 18:20:55 |
| R10.htm | 50157 | 2012-04-24 18:20:55 |
| R11.htm | 55760 | 2012-04-24 18:20:55 |
| R12.htm | 87904 | 2012-04-24 18:20:55 |
| R13.htm | 17077 | 2012-04-24 18:20:55 |
| R14.htm | 132336 | 2012-04-24 18:20:55 |
| R15.htm | 18518 | 2012-04-24 18:20:55 |
| R16.htm | 40220 | 2012-04-24 18:20:55 |
| R17.htm | 47642 | 2012-04-24 18:20:55 |
| R18.htm | 12113 | 2012-04-24 18:20:55 |
| R19.htm | 30840 | 2012-04-24 18:20:55 |
| R2.htm | 144308 | 2012-04-24 18:20:55 |
| R20.htm | 11309 | 2012-04-24 18:20:55 |
| R21.htm | 48530 | 2012-04-24 18:20:55 |
| R22.htm | 47328 | 2012-04-24 18:20:55 |
| R23.htm | 79956 | 2012-04-24 18:20:55 |
| R24.htm | 127898 | 2012-04-24 18:20:55 |
| R25.htm | 15716 | 2012-04-24 18:20:55 |
| R26.htm | 33463 | 2012-04-24 18:20:55 |
| R27.htm | 7482 | 2012-04-24 18:20:55 |
| R28.htm | 30084 | 2012-04-24 18:20:55 |
| R29.htm | 29529 | 2012-04-24 18:20:55 |
| R3.htm | 24448 | 2012-04-24 18:20:55 |
| R30.htm | 14830 | 2012-04-24 18:20:55 |
| R31.htm | 94589 | 2012-04-24 18:20:55 |
| R32.htm | 41763 | 2012-04-24 18:20:55 |
| R33.htm | 33889 | 2012-04-24 18:20:55 |
| R34.htm | 9720 | 2012-04-24 18:20:55 |
| R35.htm | 33231 | 2012-04-24 18:20:55 |
| R36.htm | 70945 | 2012-04-24 18:20:55 |
| R37.htm | 14592 | 2012-04-24 18:20:55 |
| R38.htm | 32327 | 2012-04-24 18:20:55 |
| R39.htm | 27677 | 2012-04-24 18:20:55 |
| R4.htm | 98653 | 2012-04-24 18:20:55 |
| R40.htm | 9777 | 2012-04-24 18:20:55 |
| R5.htm | 134800 | 2012-04-24 18:20:55 |
| R6.htm | 17930 | 2012-04-24 18:20:55 |
| R7.htm | 8837 | 2012-04-24 18:20:55 |
| R8.htm | 38962 | 2012-04-24 18:20:55 |
| R9.htm | 9506 | 2012-04-24 18:20:55 |
| report.css | 2721 | 2012-04-24 18:20:55 |
| Show.js | 6423 | 2012-04-24 18:20:55 |