Parent Directory| Name | Size | Last Modified |
|---|---|---|
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| 0000110019-22-000013-index.html | 2022-10-31 16:25:02 | |
| 0000110019-22-000013.txt | 2022-10-31 16:25:02 | |
 0000110019-22-000013-xbrl.zip | 114914 | 2022-10-31 16:25:02 |
| FilingSummary.xml | 13845 | 2022-10-31 16:25:02 |
| Financial_Report.xlsx | 34984 | 2022-10-31 16:25:02 |
| MetaLinks.json | 290731 | 2022-10-31 16:25:02 |
| nwp-20220930.htm | 580496 | 2022-10-31 16:25:02 |
| nwp-20220930.xsd | 18854 | 2022-10-31 16:25:02 |
| nwp-20220930_cal.xml | 47475 | 2022-10-31 16:25:02 |
| nwp-20220930_def.xml | 106477 | 2022-10-31 16:25:02 |
| nwp-20220930_htm.xml | 339872 | 2022-10-31 16:25:02 |
| nwp-20220930_lab.xml | 270253 | 2022-10-31 16:25:02 |
| nwp-20220930_pre.xml | 161603 | 2022-10-31 16:25:02 |
| nwp_20220930xex-311.htm | 10259 | 2022-10-31 16:25:02 |
| nwp_20220930xex-312.htm | 10253 | 2022-10-31 16:25:02 |
| nwp_20220930xex-32.htm | 6638 | 2022-10-31 16:25:02 |
| R1.htm | 46815 | 2022-10-31 16:25:02 |
| R10.htm | 9915 | 2022-10-31 16:25:02 |
| R11.htm | 8161 | 2022-10-31 16:25:02 |
| R12.htm | 10862 | 2022-10-31 16:25:02 |
| R13.htm | 40956 | 2022-10-31 16:25:02 |
| R14.htm | 8158 | 2022-10-31 16:25:02 |
| R15.htm | 8023 | 2022-10-31 16:25:02 |
| R16.htm | 36989 | 2022-10-31 16:25:02 |
| R17.htm | 28069 | 2022-10-31 16:25:02 |
| R18.htm | 5380 | 2022-10-31 16:25:02 |
| R19.htm | 20020 | 2022-10-31 16:25:02 |
| R2.htm | 61963 | 2022-10-31 16:25:02 |
| R20.htm | 19774 | 2022-10-31 16:25:02 |
| R21.htm | 9445 | 2022-10-31 16:25:02 |
| R22.htm | 26398 | 2022-10-31 16:25:02 |
| R3.htm | 113566 | 2022-10-31 16:25:02 |
| R4.htm | 22993 | 2022-10-31 16:25:02 |
| R5.htm | 81621 | 2022-10-31 16:25:02 |
| R6.htm | 6809 | 2022-10-31 16:25:02 |
| R7.htm | 46272 | 2022-10-31 16:25:02 |
| R8.htm | 5369 | 2022-10-31 16:25:02 |
| R9.htm | 14332 | 2022-10-31 16:25:02 |
| report.css | 2767 | 2022-10-31 16:25:02 |
| Show.js | 1085 | 2022-10-31 16:25:02 |