Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001471265-24-000121-index-headers.html | 2024-08-05 16:27:29 | |
| 0001471265-24-000121-index.html | 2024-08-05 16:27:29 | |
| 0001471265-24-000121.txt | 2024-08-05 16:27:29 | |
 0001471265-24-000121-xbrl.zip | 763016 | 2024-08-05 16:27:29 |
| a2024-06x30nwbixexx311.htm | 14591 | 2024-08-05 16:27:29 |
| a2024-06x30nwbixexx312.htm | 14651 | 2024-08-05 16:27:29 |
| a2024-06x30nwbixexx321.htm | 11009 | 2024-08-05 16:27:29 |
| FilingSummary.xml | 46934 | 2024-08-05 16:27:29 |
| Financial_Report.xlsx | 172407 | 2024-08-05 16:27:29 |
| MetaLinks.json | 1179838 | 2024-08-05 16:27:29 |
| nwbi-20240630.htm | 4258880 | 2024-08-05 16:27:29 |
| nwbi-20240630.xsd | 66300 | 2024-08-05 16:27:29 |
| nwbi-20240630_cal.xml | 149093 | 2024-08-05 16:27:29 |
| nwbi-20240630_def.xml | 489458 | 2024-08-05 16:27:29 |
 nwbi-20240630_g1.jpg | 40523 | 2024-08-05 16:27:29 |
 nwbi-20240630_g2.jpg | 55526 | 2024-08-05 16:27:29 |
 nwbi-20240630_g3.jpg | 50901 | 2024-08-05 16:27:29 |
 nwbi-20240630_g4.jpg | 51670 | 2024-08-05 16:27:29 |
 nwbi-20240630_g5.jpg | 51954 | 2024-08-05 16:27:29 |
 nwbi-20240630_g6.jpg | 48305 | 2024-08-05 16:27:29 |
 nwbi-20240630_g7.jpg | 49328 | 2024-08-05 16:27:29 |
 nwbi-20240630_g8.jpg | 49325 | 2024-08-05 16:27:29 |
 nwbi-20240630_g9.jpg | 33673 | 2024-08-05 16:27:29 |
| nwbi-20240630_htm.xml | 5659813 | 2024-08-05 16:27:29 |
| nwbi-20240630_lab.xml | 918412 | 2024-08-05 16:27:29 |
| nwbi-20240630_pre.xml | 733343 | 2024-08-05 16:27:29 |
| R1.htm | 53098 | 2024-08-05 16:27:29 |
| R10.htm | 4186 | 2024-08-05 16:27:29 |
| R11.htm | 10588 | 2024-08-05 16:27:29 |
| R12.htm | 201069 | 2024-08-05 16:27:29 |
| R13.htm | 1124524 | 2024-08-05 16:27:29 |
| R14.htm | 23985 | 2024-08-05 16:27:29 |
| R15.htm | 53389 | 2024-08-05 16:27:29 |
| R16.htm | 8778 | 2024-08-05 16:27:29 |
| R17.htm | 39433 | 2024-08-05 16:27:29 |
| R18.htm | 40388 | 2024-08-05 16:27:29 |
| R19.htm | 322733 | 2024-08-05 16:27:29 |
| R2.htm | 115632 | 2024-08-05 16:27:29 |
| R20.htm | 83510 | 2024-08-05 16:27:29 |
| R21.htm | 5117 | 2024-08-05 16:27:29 |
| R22.htm | 81785 | 2024-08-05 16:27:29 |
| R23.htm | 14821 | 2024-08-05 16:27:29 |
| R24.htm | 8483 | 2024-08-05 16:27:29 |
| R25.htm | 12296 | 2024-08-05 16:27:29 |
| R26.htm | 207464 | 2024-08-05 16:27:29 |
| R27.htm | 1126208 | 2024-08-05 16:27:29 |
| R28.htm | 29886 | 2024-08-05 16:27:29 |
| R29.htm | 43467 | 2024-08-05 16:27:29 |
| R3.htm | 24535 | 2024-08-05 16:27:29 |
| R30.htm | 38229 | 2024-08-05 16:27:29 |
| R31.htm | 36495 | 2024-08-05 16:27:29 |
| R32.htm | 307120 | 2024-08-05 16:27:29 |
| R33.htm | 80063 | 2024-08-05 16:27:29 |
| R34.htm | 81107 | 2024-08-05 16:27:29 |
| R35.htm | 4065 | 2024-08-05 16:27:29 |
| R36.htm | 86499 | 2024-08-05 16:27:29 |
| R37.htm | 61878 | 2024-08-05 16:27:29 |
| R38.htm | 29642 | 2024-08-05 16:27:29 |
| R39.htm | 32532 | 2024-08-05 16:27:29 |
| R4.htm | 126812 | 2024-08-05 16:27:29 |
| R40.htm | 36556 | 2024-08-05 16:27:29 |
| R41.htm | 13551 | 2024-08-05 16:27:29 |
| R42.htm | 90638 | 2024-08-05 16:27:29 |
| R43.htm | 109547 | 2024-08-05 16:27:29 |
| R44.htm | 51199 | 2024-08-05 16:27:29 |
| R45.htm | 65317 | 2024-08-05 16:27:29 |
| R46.htm | 83003 | 2024-08-05 16:27:29 |
| R47.htm | 37909 | 2024-08-05 16:27:29 |
| R48.htm | 57526 | 2024-08-05 16:27:29 |
| R49.htm | 14535 | 2024-08-05 16:27:29 |
| R5.htm | 39977 | 2024-08-05 16:27:29 |
| R50.htm | 93490 | 2024-08-05 16:27:29 |
| R51.htm | 239307 | 2024-08-05 16:27:29 |
| R52.htm | 28771 | 2024-08-05 16:27:29 |
| R53.htm | 9989 | 2024-08-05 16:27:29 |
| R54.htm | 26067 | 2024-08-05 16:27:29 |
| R55.htm | 88483 | 2024-08-05 16:27:29 |
| R56.htm | 37527 | 2024-08-05 16:27:29 |
| R57.htm | 17843 | 2024-08-05 16:27:29 |
| R58.htm | 57736 | 2024-08-05 16:27:29 |
| R59.htm | 27050 | 2024-08-05 16:27:29 |
| R6.htm | 12502 | 2024-08-05 16:27:29 |
| R60.htm | 4731 | 2024-08-05 16:27:29 |
| R61.htm | 146037 | 2024-08-05 16:27:29 |
| R62.htm | 176732 | 2024-08-05 16:27:29 |
| R63.htm | 12265 | 2024-08-05 16:27:29 |
| R64.htm | 32492 | 2024-08-05 16:27:29 |
| R65.htm | 53071 | 2024-08-05 16:27:29 |
| R66.htm | 15957 | 2024-08-05 16:27:29 |
| R67.htm | 55336 | 2024-08-05 16:27:29 |
| R68.htm | 13316 | 2024-08-05 16:27:29 |
| R69.htm | 33620 | 2024-08-05 16:27:29 |
| R7.htm | 75197 | 2024-08-05 16:27:29 |
| R70.htm | 42428 | 2024-08-05 16:27:29 |
| R8.htm | 7407 | 2024-08-05 16:27:29 |
| R9.htm | 110438 | 2024-08-05 16:27:29 |
| R9999.htm | 24878 | 2024-08-05 16:27:29 |
| report.css | 2767 | 2024-08-05 16:27:29 |
| Show.js | 1085 | 2024-08-05 16:27:29 |