Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000719220-25-000091-index-headers.html | 2025-11-06 16:54:49 | |
| 0000719220-25-000091-index.html | 2025-11-06 16:54:49 | |
| 0000719220-25-000091.txt | 2025-11-06 16:54:49 | |
 0000719220-25-000091-xbrl.zip | 310090 | 2025-11-06 16:54:49 |
| exhibit311.htm | 9015 | 2025-11-06 16:54:49 |
| exhibit312.htm | 8897 | 2025-11-06 16:54:49 |
| exhibit32.htm | 5690 | 2025-11-06 16:54:49 |
| FilingSummary.xml | 36279 | 2025-11-06 16:54:49 |
| MetaLinks.json | 1028463 | 2025-11-06 16:54:49 |
| R1.htm | 51504 | 2025-11-06 16:54:49 |
| R10.htm | 200991 | 2025-11-06 16:54:49 |
| R11.htm | 161993 | 2025-11-06 16:54:49 |
| R12.htm | 753877 | 2025-11-06 16:54:49 |
| R13.htm | 113078 | 2025-11-06 16:54:49 |
| R14.htm | 28593 | 2025-11-06 16:54:49 |
| R15.htm | 14410 | 2025-11-06 16:54:49 |
| R16.htm | 55157 | 2025-11-06 16:54:49 |
| R17.htm | 8465 | 2025-11-06 16:54:49 |
| R18.htm | 50166 | 2025-11-06 16:54:49 |
| R19.htm | 62371 | 2025-11-06 16:54:49 |
| R2.htm | 106959 | 2025-11-06 16:54:49 |
| R20.htm | 195680 | 2025-11-06 16:54:49 |
| R21.htm | 169739 | 2025-11-06 16:54:49 |
| R22.htm | 774118 | 2025-11-06 16:54:49 |
| R23.htm | 112355 | 2025-11-06 16:54:49 |
| R24.htm | 27792 | 2025-11-06 16:54:49 |
| R25.htm | 11029 | 2025-11-06 16:54:49 |
| R26.htm | 54802 | 2025-11-06 16:54:49 |
| R27.htm | 5024 | 2025-11-06 16:54:49 |
| R28.htm | 66333 | 2025-11-06 16:54:49 |
| R29.htm | 117496 | 2025-11-06 16:54:49 |
| R3.htm | 17613 | 2025-11-06 16:54:49 |
| R30.htm | 15420 | 2025-11-06 16:54:49 |
| R31.htm | 115974 | 2025-11-06 16:54:49 |
| R32.htm | 17799 | 2025-11-06 16:54:49 |
| R33.htm | 8612 | 2025-11-06 16:54:49 |
| R34.htm | 35359 | 2025-11-06 16:54:49 |
| R35.htm | 63495 | 2025-11-06 16:54:49 |
| R36.htm | 14762 | 2025-11-06 16:54:49 |
| R37.htm | 24849 | 2025-11-06 16:54:49 |
| R38.htm | 48864 | 2025-11-06 16:54:49 |
| R39.htm | 18220 | 2025-11-06 16:54:49 |
| R4.htm | 131016 | 2025-11-06 16:54:49 |
| R40.htm | 26344 | 2025-11-06 16:54:49 |
| R41.htm | 39650 | 2025-11-06 16:54:49 |
| R42.htm | 17572 | 2025-11-06 16:54:49 |
| R43.htm | 45553 | 2025-11-06 16:54:49 |
| R44.htm | 276243 | 2025-11-06 16:54:49 |
| R45.htm | 64998 | 2025-11-06 16:54:49 |
| R46.htm | 70408 | 2025-11-06 16:54:49 |
| R47.htm | 35369 | 2025-11-06 16:54:49 |
| R48.htm | 38091 | 2025-11-06 16:54:49 |
| R49.htm | 47202 | 2025-11-06 16:54:49 |
| R5.htm | 56777 | 2025-11-06 16:54:49 |
| R50.htm | 58189 | 2025-11-06 16:54:49 |
| R51.htm | 68765 | 2025-11-06 16:54:49 |
| R52.htm | 16840 | 2025-11-06 16:54:49 |
| R53.htm | 15820 | 2025-11-06 16:54:49 |
| R54.htm | 16983 | 2025-11-06 16:54:49 |
| R55.htm | 19671 | 2025-11-06 16:54:49 |
| R56.htm | 8364 | 2025-11-06 16:54:49 |
| R57.htm | 28096 | 2025-11-06 16:54:49 |
| R6.htm | 38249 | 2025-11-06 16:54:49 |
| R7.htm | 61144 | 2025-11-06 16:54:49 |
| R8.htm | 13007 | 2025-11-06 16:54:49 |
| R9.htm | 63304 | 2025-11-06 16:54:49 |
| report.css | 2767 | 2025-11-06 16:54:49 |
| Show.js | 1085 | 2025-11-06 16:54:49 |
| stba-20250930.htm | 3472121 | 2025-11-06 16:54:49 |
| stba-20250930.xsd | 39786 | 2025-11-06 16:54:49 |
| stba-20250930_cal.xml | 107654 | 2025-11-06 16:54:49 |
| stba-20250930_def.xml | 371283 | 2025-11-06 16:54:49 |
| stba-20250930_htm.xml | 3888848 | 2025-11-06 16:54:49 |
| stba-20250930_lab.xml | 678048 | 2025-11-06 16:54:49 |
| stba-20250930_pre.xml | 563031 | 2025-11-06 16:54:49 |