Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001552781-22-000513-index-headers.html | 2022-07-27 08:02:35 | |
| 0001552781-22-000513-index.html | 2022-07-27 08:02:35 | |
| 0001552781-22-000513.txt | 2022-07-27 08:02:35 | |
 0001552781-22-000513-xbrl.zip | 24221 | 2022-07-27 08:02:35 |
| e22381_ex99-1.htm | 7450 | 2022-07-27 08:02:35 |
| e22381_ex99-2.htm | 76257 | 2022-07-27 08:02:35 |
| e22381_nsc-8k.htm | 26832 | 2022-07-27 08:02:35 |
| e22381_nsc-8k_htm.xml | 3486 | 2022-07-27 08:02:35 |
| FilingSummary.xml | 1712 | 2022-07-27 08:02:35 |
| Financial_Report.xlsx | 5685 | 2022-07-27 08:02:35 |
 image_001.jpg | 22374 | 2022-07-27 08:02:35 |
| MetaLinks.json | 37268 | 2022-07-27 08:02:35 |
| nsc-20220727.xsd | 2929 | 2022-07-27 08:02:35 |
| nsc-20220727_lab.xml | 34240 | 2022-07-27 08:02:35 |
| nsc-20220727_pre.xml | 22340 | 2022-07-27 08:02:35 |
 nsc_logo.jpg | 7164 | 2022-07-27 08:02:35 |
| R1.htm | 38537 | 2022-07-27 08:02:35 |
| report.css | 2767 | 2022-07-27 08:02:35 |
| Show.js | 1085 | 2022-07-27 08:02:35 |