Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000093751-21-000476-index-headers.html | 2021-02-19 07:09:17 | |
| 0000093751-21-000476-index.html | 2021-02-19 07:09:17 | |
| 0000093751-21-000476.txt | 2021-02-19 07:09:17 | |
 0000093751-21-000476-xbrl.zip | 1237873 | 2021-02-19 07:09:17 |
| exhibit1010-descriptiono.htm | 3329 | 2021-02-19 07:09:17 |
 exhibit1010-descriptiono001.jpg | 194153 | 2021-02-19 07:09:17 |
| exhibit102executivesuppl.htm | 145187 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl001.jpg | 68802 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl002.jpg | 53764 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl003.jpg | 59882 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl004.jpg | 61342 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl005.jpg | 62678 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl006.jpg | 76976 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl007.jpg | 73929 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl008.jpg | 45349 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl009.jpg | 147349 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl010.jpg | 196442 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl011.jpg | 153872 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl012.jpg | 174558 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl013.jpg | 176874 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl014.jpg | 188173 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl015.jpg | 193492 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl016.jpg | 216053 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl017.jpg | 215767 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl018.jpg | 216690 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl019.jpg | 174892 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl020.jpg | 206879 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl021.jpg | 205051 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl022.jpg | 196181 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl023.jpg | 268436 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl024.jpg | 243464 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl025.jpg | 211469 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl026.jpg | 196642 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl027.jpg | 232267 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl028.jpg | 204655 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl029.jpg | 220003 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl030.jpg | 208590 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl031.jpg | 225517 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl032.jpg | 225282 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl033.jpg | 102920 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl034.jpg | 188677 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl035.jpg | 212834 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl036.jpg | 190434 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl037.jpg | 234961 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl038.jpg | 245724 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl039.jpg | 220647 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl040.jpg | 268841 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl041.jpg | 225954 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl042.jpg | 114710 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl043.jpg | 151815 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl044.jpg | 182461 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl045.jpg | 212277 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl046.jpg | 177409 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl047.jpg | 226566 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl048.jpg | 231336 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl049.jpg | 239336 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl050.jpg | 205452 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl051.jpg | 232668 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl052.jpg | 83411 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl053.jpg | 175959 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl054.jpg | 206631 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl055.jpg | 200133 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl056.jpg | 245247 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl057.jpg | 34813 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl058.jpg | 186730 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl059.jpg | 223600 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl060.jpg | 199965 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl061.jpg | 232430 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl062.jpg | 208346 | 2021-02-19 07:09:17 |
 exhibit102executivesuppl063.jpg | 43013 | 2021-02-19 07:09:17 |
| exhibit21-december312020.htm | 16638 | 2021-02-19 07:09:17 |
| exhibit23consentletterofey.htm | 2603 | 2021-02-19 07:09:17 |
| exhibit311-december312020.htm | 10858 | 2021-02-19 07:09:17 |
| exhibit312-december312020.htm | 11084 | 2021-02-19 07:09:17 |
| exhibit32-december312020.htm | 8722 | 2021-02-19 07:09:17 |
| FilingSummary.xml | 91243 | 2021-02-19 07:09:17 |
| Financial_Report.xlsx | 287926 | 2021-02-19 07:09:17 |
| MetaLinks.json | 1632703 | 2021-02-19 07:09:17 |
| R1.htm | 70939 | 2021-02-19 07:09:17 |
| R10.htm | 40781 | 2021-02-19 07:09:17 |
| R100.htm | 53588 | 2021-02-19 07:09:17 |
| R101.htm | 57754 | 2021-02-19 07:09:17 |
| R102.htm | 42455 | 2021-02-19 07:09:17 |
| R103.htm | 10769 | 2021-02-19 07:09:17 |
| R104.htm | 9846 | 2021-02-19 07:09:17 |
| R105.htm | 8525 | 2021-02-19 07:09:17 |
| R106.htm | 18733 | 2021-02-19 07:09:17 |
| R107.htm | 26784 | 2021-02-19 07:09:17 |
| R108.htm | 52426 | 2021-02-19 07:09:17 |
| R109.htm | 92610 | 2021-02-19 07:09:17 |
| R11.htm | 496903 | 2021-02-19 07:09:17 |
| R110.htm | 35083 | 2021-02-19 07:09:17 |
| R111.htm | 16727 | 2021-02-19 07:09:17 |
| R112.htm | 18655 | 2021-02-19 07:09:17 |
| R113.htm | 26534 | 2021-02-19 07:09:17 |
| R114.htm | 55991 | 2021-02-19 07:09:17 |
| R115.htm | 35173 | 2021-02-19 07:09:17 |
| R116.htm | 84734 | 2021-02-19 07:09:17 |
| R117.htm | 40718 | 2021-02-19 07:09:17 |
| R118.htm | 49740 | 2021-02-19 07:09:17 |
| R119.htm | 8707 | 2021-02-19 07:09:17 |
| R12.htm | 562572 | 2021-02-19 07:09:17 |
| R120.htm | 25153 | 2021-02-19 07:09:17 |
| R121.htm | 23588 | 2021-02-19 07:09:17 |
| R122.htm | 20007 | 2021-02-19 07:09:17 |
| R123.htm | 40549 | 2021-02-19 07:09:17 |
| R124.htm | 37325 | 2021-02-19 07:09:17 |
| R125.htm | 55361 | 2021-02-19 07:09:17 |
| R126.htm | 13484 | 2021-02-19 07:09:17 |
| R127.htm | 19344 | 2021-02-19 07:09:17 |
| R128.htm | 15860 | 2021-02-19 07:09:17 |
| R129.htm | 25828 | 2021-02-19 07:09:17 |
| R13.htm | 227044 | 2021-02-19 07:09:17 |
| R130.htm | 29885 | 2021-02-19 07:09:17 |
| R131.htm | 27750 | 2021-02-19 07:09:17 |
| R132.htm | 20072 | 2021-02-19 07:09:17 |
| R133.htm | 38746 | 2021-02-19 07:09:17 |
| R134.htm | 27865 | 2021-02-19 07:09:17 |
| R135.htm | 14208 | 2021-02-19 07:09:17 |
| R136.htm | 42959 | 2021-02-19 07:09:17 |
| R137.htm | 15998 | 2021-02-19 07:09:17 |
| R138.htm | 22740 | 2021-02-19 07:09:17 |
| R139.htm | 57786 | 2021-02-19 07:09:17 |
| R14.htm | 75881 | 2021-02-19 07:09:17 |
| R140.htm | 9641 | 2021-02-19 07:09:17 |
| R141.htm | 106561 | 2021-02-19 07:09:17 |
| R142.htm | 17365 | 2021-02-19 07:09:17 |
| R143.htm | 9354 | 2021-02-19 07:09:17 |
| R144.htm | 43142 | 2021-02-19 07:09:17 |
| R145.htm | 50194 | 2021-02-19 07:09:17 |
| R146.htm | 55766 | 2021-02-19 07:09:17 |
| R147.htm | 26495 | 2021-02-19 07:09:17 |
| R15.htm | 24072 | 2021-02-19 07:09:17 |
| R16.htm | 6123 | 2021-02-19 07:09:17 |
| R17.htm | 49922 | 2021-02-19 07:09:17 |
| R18.htm | 89166 | 2021-02-19 07:09:17 |
| R19.htm | 184627 | 2021-02-19 07:09:17 |
| R2.htm | 99192 | 2021-02-19 07:09:17 |
| R20.htm | 174934 | 2021-02-19 07:09:17 |
| R21.htm | 24263 | 2021-02-19 07:09:17 |
| R22.htm | 21245 | 2021-02-19 07:09:17 |
| R23.htm | 15323 | 2021-02-19 07:09:17 |
| R24.htm | 162434 | 2021-02-19 07:09:17 |
| R25.htm | 129846 | 2021-02-19 07:09:17 |
| R26.htm | 40671 | 2021-02-19 07:09:17 |
| R27.htm | 44871 | 2021-02-19 07:09:17 |
| R28.htm | 9291 | 2021-02-19 07:09:17 |
| R29.htm | 110788 | 2021-02-19 07:09:17 |
| R3.htm | 35036 | 2021-02-19 07:09:17 |
| R30.htm | 59317 | 2021-02-19 07:09:17 |
| R31.htm | 101857 | 2021-02-19 07:09:17 |
| R32.htm | 33912 | 2021-02-19 07:09:17 |
| R33.htm | 151314 | 2021-02-19 07:09:17 |
| R34.htm | 180483 | 2021-02-19 07:09:17 |
| R35.htm | 30419 | 2021-02-19 07:09:17 |
| R36.htm | 86553 | 2021-02-19 07:09:17 |
| R37.htm | 5604 | 2021-02-19 07:09:17 |
| R38.htm | 57929 | 2021-02-19 07:09:17 |
| R39.htm | 22677 | 2021-02-19 07:09:17 |
| R4.htm | 15948 | 2021-02-19 07:09:17 |
| R40.htm | 486960 | 2021-02-19 07:09:17 |
| R41.htm | 549593 | 2021-02-19 07:09:17 |
| R42.htm | 205589 | 2021-02-19 07:09:17 |
| R43.htm | 76741 | 2021-02-19 07:09:17 |
| R44.htm | 24118 | 2021-02-19 07:09:17 |
| R45.htm | 48154 | 2021-02-19 07:09:17 |
| R46.htm | 91477 | 2021-02-19 07:09:17 |
| R47.htm | 204308 | 2021-02-19 07:09:17 |
| R48.htm | 175669 | 2021-02-19 07:09:17 |
| R49.htm | 21625 | 2021-02-19 07:09:17 |
| R5.htm | 114600 | 2021-02-19 07:09:17 |
| R50.htm | 168871 | 2021-02-19 07:09:17 |
| R51.htm | 124547 | 2021-02-19 07:09:17 |
| R52.htm | 40273 | 2021-02-19 07:09:17 |
| R53.htm | 38886 | 2021-02-19 07:09:17 |
| R54.htm | 74724 | 2021-02-19 07:09:17 |
| R55.htm | 59855 | 2021-02-19 07:09:17 |
| R56.htm | 101367 | 2021-02-19 07:09:17 |
| R57.htm | 32102 | 2021-02-19 07:09:17 |
| R58.htm | 142289 | 2021-02-19 07:09:17 |
| R59.htm | 168131 | 2021-02-19 07:09:17 |
| R6.htm | 47535 | 2021-02-19 07:09:17 |
| R60.htm | 29037 | 2021-02-19 07:09:17 |
| R61.htm | 88629 | 2021-02-19 07:09:17 |
| R62.htm | 4476 | 2021-02-19 07:09:17 |
| R63.htm | 24036 | 2021-02-19 07:09:17 |
| R64.htm | 191850 | 2021-02-19 07:09:17 |
| R65.htm | 88306 | 2021-02-19 07:09:17 |
| R66.htm | 31775 | 2021-02-19 07:09:17 |
| R67.htm | 80299 | 2021-02-19 07:09:17 |
| R68.htm | 55335 | 2021-02-19 07:09:17 |
| R69.htm | 108388 | 2021-02-19 07:09:17 |
| R7.htm | 79504 | 2021-02-19 07:09:17 |
| R70.htm | 115102 | 2021-02-19 07:09:17 |
| R71.htm | 175744 | 2021-02-19 07:09:17 |
| R72.htm | 14114 | 2021-02-19 07:09:17 |
| R73.htm | 10372 | 2021-02-19 07:09:17 |
| R74.htm | 49091 | 2021-02-19 07:09:17 |
| R75.htm | 35997 | 2021-02-19 07:09:17 |
| R76.htm | 46635 | 2021-02-19 07:09:17 |
| R77.htm | 97146 | 2021-02-19 07:09:17 |
| R78.htm | 44035 | 2021-02-19 07:09:17 |
| R79.htm | 11382 | 2021-02-19 07:09:17 |
| R8.htm | 4633 | 2021-02-19 07:09:17 |
| R80.htm | 21189 | 2021-02-19 07:09:17 |
| R81.htm | 23030 | 2021-02-19 07:09:17 |
| R82.htm | 21442 | 2021-02-19 07:09:17 |
| R83.htm | 21394 | 2021-02-19 07:09:17 |
| R84.htm | 13398 | 2021-02-19 07:09:17 |
| R85.htm | 32770 | 2021-02-19 07:09:17 |
| R86.htm | 12502 | 2021-02-19 07:09:17 |
| R87.htm | 16179 | 2021-02-19 07:09:17 |
| R88.htm | 22905 | 2021-02-19 07:09:17 |
| R89.htm | 8882 | 2021-02-19 07:09:17 |
| R9.htm | 120926 | 2021-02-19 07:09:17 |
| R90.htm | 81453 | 2021-02-19 07:09:17 |
| R91.htm | 20036 | 2021-02-19 07:09:17 |
| R92.htm | 20015 | 2021-02-19 07:09:17 |
| R93.htm | 27009 | 2021-02-19 07:09:17 |
| R94.htm | 32042 | 2021-02-19 07:09:17 |
| R95.htm | 20935 | 2021-02-19 07:09:17 |
| R96.htm | 18614 | 2021-02-19 07:09:17 |
| R97.htm | 24853 | 2021-02-19 07:09:17 |
| R98.htm | 27876 | 2021-02-19 07:09:17 |
| R99.htm | 6597 | 2021-02-19 07:09:17 |
| report.css | 2768 | 2021-02-19 07:09:17 |
| Show.js | 1086 | 2021-02-19 07:09:17 |
| stt-20201231.htm | 10071692 | 2021-02-19 07:09:17 |
| stt-20201231.xsd | 159763 | 2021-02-19 07:09:17 |
| stt-20201231_cal.xml | 316305 | 2021-02-19 07:09:17 |
| stt-20201231_def.xml | 949293 | 2021-02-19 07:09:17 |
 stt-20201231_g1.jpg | 79117 | 2021-02-19 07:09:17 |
| stt-20201231_htm.xml | 9684042 | 2021-02-19 07:09:17 |
| stt-20201231_lab.xml | 1707433 | 2021-02-19 07:09:17 |
| stt-20201231_pre.xml | 1272385 | 2021-02-19 07:09:17 |
| stt-descriptionofregiste.htm | 67124 | 2021-02-19 07:09:17 |
 stt-descriptionofregiste001.jpg | 275125 | 2021-02-19 07:09:17 |
 stt-descriptionofregiste002.jpg | 220685 | 2021-02-19 07:09:17 |
 stt-descriptionofregiste003.jpg | 305517 | 2021-02-19 07:09:17 |
 stt-descriptionofregiste004.jpg | 291743 | 2021-02-19 07:09:17 |
 stt-descriptionofregiste005.jpg | 257770 | 2021-02-19 07:09:17 |
 stt-descriptionofregiste006.jpg | 272452 | 2021-02-19 07:09:17 |
 stt-descriptionofregiste007.jpg | 293632 | 2021-02-19 07:09:17 |
 stt-descriptionofregiste008.jpg | 264815 | 2021-02-19 07:09:17 |
 stt-descriptionofregiste009.jpg | 261202 | 2021-02-19 07:09:17 |
 stt-descriptionofregiste010.jpg | 284686 | 2021-02-19 07:09:17 |
 stt-descriptionofregiste011.jpg | 283064 | 2021-02-19 07:09:17 |
 stt-descriptionofregiste012.jpg | 288947 | 2021-02-19 07:09:17 |
 stt-descriptionofregiste013.jpg | 334416 | 2021-02-19 07:09:17 |
 stt-descriptionofregiste014.jpg | 297558 | 2021-02-19 07:09:17 |
 stt-descriptionofregiste015.jpg | 271239 | 2021-02-19 07:09:17 |
 stt-descriptionofregiste016.jpg | 248140 | 2021-02-19 07:09:17 |
 stt-descriptionofregiste017.jpg | 279214 | 2021-02-19 07:09:17 |
 stt-descriptionofregiste018.jpg | 249552 | 2021-02-19 07:09:17 |