Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000831641-18-000010-index-headers.html | 2018-02-01 16:22:43 | |
| 0000831641-18-000010-index.html | 2018-02-01 16:22:43 | |
| 0000831641-18-000010.txt | 2018-02-01 16:22:43 | |
 0000831641-18-000010-xbrl.zip | 142499 | 2018-02-01 16:22:43 |
| FilingSummary.xml | 28826 | 2018-02-01 16:22:43 |
| Financial_Report.xlsx | 57160 | 2018-02-01 16:22:43 |
| R1.htm | 22214 | 2018-02-01 16:22:43 |
| R10.htm | 65067 | 2018-02-01 16:22:43 |
| R11.htm | 18621 | 2018-02-01 16:22:43 |
| R12.htm | 7668 | 2018-02-01 16:22:43 |
| R13.htm | 8948 | 2018-02-01 16:22:43 |
| R14.htm | 24572 | 2018-02-01 16:22:43 |
| R15.htm | 15908 | 2018-02-01 16:22:43 |
| R16.htm | 67310 | 2018-02-01 16:22:43 |
| R17.htm | 7869 | 2018-02-01 16:22:43 |
| R18.htm | 26957 | 2018-02-01 16:22:43 |
| R19.htm | 45406 | 2018-02-01 16:22:43 |
| R2.htm | 86098 | 2018-02-01 16:22:43 |
| R20.htm | 5706 | 2018-02-01 16:22:43 |
| R21.htm | 14533 | 2018-02-01 16:22:43 |
| R22.htm | 20761 | 2018-02-01 16:22:43 |
| R23.htm | 59528 | 2018-02-01 16:22:43 |
| R24.htm | 17509 | 2018-02-01 16:22:43 |
| R25.htm | 22690 | 2018-02-01 16:22:43 |
| R26.htm | 64387 | 2018-02-01 16:22:43 |
| R27.htm | 27155 | 2018-02-01 16:22:43 |
| R28.htm | 44114 | 2018-02-01 16:22:43 |
| R29.htm | 4108 | 2018-02-01 16:22:43 |
| R3.htm | 19066 | 2018-02-01 16:22:43 |
| R30.htm | 19906 | 2018-02-01 16:22:43 |
| R31.htm | 26301 | 2018-02-01 16:22:43 |
| R32.htm | 43182 | 2018-02-01 16:22:43 |
| R33.htm | 14809 | 2018-02-01 16:22:43 |
| R34.htm | 24824 | 2018-02-01 16:22:43 |
| R35.htm | 40331 | 2018-02-01 16:22:43 |
| R36.htm | 19804 | 2018-02-01 16:22:43 |
| R37.htm | 18964 | 2018-02-01 16:22:43 |
| R38.htm | 39311 | 2018-02-01 16:22:43 |
| R39.htm | 19750 | 2018-02-01 16:22:43 |
| R4.htm | 44351 | 2018-02-01 16:22:43 |
| R40.htm | 6908 | 2018-02-01 16:22:43 |
| R41.htm | 26209 | 2018-02-01 16:22:43 |
| R42.htm | 24909 | 2018-02-01 16:22:43 |
| R43.htm | 14336 | 2018-02-01 16:22:43 |
| R44.htm | 6013 | 2018-02-01 16:22:43 |
| R45.htm | 35408 | 2018-02-01 16:22:43 |
| R46.htm | 10397 | 2018-02-01 16:22:43 |
| R47.htm | 23455 | 2018-02-01 16:22:43 |
| R5.htm | 26694 | 2018-02-01 16:22:43 |
| R6.htm | 81451 | 2018-02-01 16:22:43 |
| R7.htm | 8807 | 2018-02-01 16:22:43 |
| R8.htm | 30764 | 2018-02-01 16:22:43 |
| R9.htm | 17238 | 2018-02-01 16:22:43 |
| report.css | 2767 | 2018-02-01 16:22:43 |
| Show.js | 1410 | 2018-02-01 16:22:43 |
| ttek-20171231.xml | 764143 | 2018-02-01 16:22:43 |
| ttek-20171231.xsd | 40274 | 2018-02-01 16:22:43 |
| ttek-20171231_cal.xml | 73631 | 2018-02-01 16:22:43 |
| ttek-20171231_def.xml | 161568 | 2018-02-01 16:22:43 |
| ttek-20171231_lab.xml | 515353 | 2018-02-01 16:22:43 |
| ttek-20171231_pre.xml | 282579 | 2018-02-01 16:22:43 |
| ttekex311q12018.htm | 14651 | 2018-02-01 16:22:43 |
| ttekex312q12018.htm | 14673 | 2018-02-01 16:22:43 |
| ttekex321q12018.htm | 7546 | 2018-02-01 16:22:43 |
| ttekex322q12018.htm | 7540 | 2018-02-01 16:22:43 |
| ttekex95q12018.htm | 14068 | 2018-02-01 16:22:43 |
| ttekfy18q110-q.htm | 1036929 | 2018-02-01 16:22:43 |