Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-12-074271-index-headers.html | 2012-02-23 10:01:52 | |
| 0001193125-12-074271-index.html | 2012-02-23 10:01:52 | |
| 0001193125-12-074271.txt | 2012-02-23 10:01:52 | |
 0001193125-12-074271-xbrl.zip | 236223 | 2012-02-23 10:01:52 |
| d264723d10k.htm | 2019056 | 2012-02-23 10:01:52 |
| d264723dex21.htm | 4649 | 2012-02-23 10:01:52 |
| d264723dex231.htm | 1859 | 2012-02-23 10:01:52 |
| d264723dex232.htm | 1930 | 2012-02-23 10:01:52 |
| d264723dex311.htm | 5946 | 2012-02-23 10:01:52 |
| d264723dex312.htm | 5944 | 2012-02-23 10:01:52 |
| d264723dex32.htm | 4464 | 2012-02-23 10:01:52 |
| d264723dex991.htm | 106665 | 2012-02-23 10:01:52 |
| FilingSummary.xml | 46523 | 2012-02-23 10:01:52 |
| Financial_Report.xls | 1908049 | 2012-02-23 10:01:52 |
 g264723g45r00.jpg | 40279 | 2012-02-23 10:01:52 |
 g264723g69a82.jpg | 44817 | 2012-02-23 10:01:52 |
| R1.htm | 39460 | 2012-02-23 10:01:52 |
| R10.htm | 15598 | 2012-02-23 10:01:52 |
| R11.htm | 34940 | 2012-02-23 10:01:52 |
| R12.htm | 14815 | 2012-02-23 10:01:52 |
| R13.htm | 36784 | 2012-02-23 10:01:52 |
| R14.htm | 21838 | 2012-02-23 10:01:52 |
| R15.htm | 47468 | 2012-02-23 10:01:52 |
| R16.htm | 18336 | 2012-02-23 10:01:52 |
| R17.htm | 19947 | 2012-02-23 10:01:52 |
| R18.htm | 6939 | 2012-02-23 10:01:52 |
| R19.htm | 125488 | 2012-02-23 10:01:52 |
| R2.htm | 187604 | 2012-02-23 10:01:52 |
| R20.htm | 99324 | 2012-02-23 10:01:52 |
| R21.htm | 57442 | 2012-02-23 10:01:52 |
| R22.htm | 11915 | 2012-02-23 10:01:52 |
| R23.htm | 84282 | 2012-02-23 10:01:52 |
| R24.htm | 45036 | 2012-02-23 10:01:52 |
| R25.htm | 156727 | 2012-02-23 10:01:52 |
| R26.htm | 18336 | 2012-02-23 10:01:52 |
| R27.htm | 123313 | 2012-02-23 10:01:52 |
| R28.htm | 28615 | 2012-02-23 10:01:52 |
| R29.htm | 35807 | 2012-02-23 10:01:52 |
| R3.htm | 31262 | 2012-02-23 10:01:52 |
| R30.htm | 14951 | 2012-02-23 10:01:52 |
| R31.htm | 27349 | 2012-02-23 10:01:52 |
| R32.htm | 19536 | 2012-02-23 10:01:52 |
| R33.htm | 49233 | 2012-02-23 10:01:52 |
| R34.htm | 11100 | 2012-02-23 10:01:52 |
| R35.htm | 122836 | 2012-02-23 10:01:52 |
| R36.htm | 98859 | 2012-02-23 10:01:52 |
| R37.htm | 48538 | 2012-02-23 10:01:52 |
| R38.htm | 76592 | 2012-02-23 10:01:52 |
| R39.htm | 42232 | 2012-02-23 10:01:52 |
| R4.htm | 101064 | 2012-02-23 10:01:52 |
| R40.htm | 172269 | 2012-02-23 10:01:52 |
| R41.htm | 118594 | 2012-02-23 10:01:52 |
| R42.htm | 13952 | 2012-02-23 10:01:52 |
| R43.htm | 13503 | 2012-02-23 10:01:52 |
| R44.htm | 72696 | 2012-02-23 10:01:52 |
| R45.htm | 56339 | 2012-02-23 10:01:52 |
| R46.htm | 12966 | 2012-02-23 10:01:52 |
| R47.htm | 27494 | 2012-02-23 10:01:52 |
| R48.htm | 109012 | 2012-02-23 10:01:52 |
| R49.htm | 19769 | 2012-02-23 10:01:52 |
| R5.htm | 54693 | 2012-02-23 10:01:52 |
| R50.htm | 27820 | 2012-02-23 10:01:52 |
| R51.htm | 29303 | 2012-02-23 10:01:52 |
| R52.htm | 9021 | 2012-02-23 10:01:52 |
| R53.htm | 17659 | 2012-02-23 10:01:52 |
| R54.htm | 39159 | 2012-02-23 10:01:52 |
| R55.htm | 32382 | 2012-02-23 10:01:52 |
| R56.htm | 36355 | 2012-02-23 10:01:52 |
| R57.htm | 32780 | 2012-02-23 10:01:52 |
| R58.htm | 18317 | 2012-02-23 10:01:52 |
| R59.htm | 150933 | 2012-02-23 10:01:52 |
| R6.htm | 17909 | 2012-02-23 10:01:52 |
| R60.htm | 14629 | 2012-02-23 10:01:52 |
| R61.htm | 35296 | 2012-02-23 10:01:52 |
| R62.htm | 41289 | 2012-02-23 10:01:52 |
| R63.htm | 38615 | 2012-02-23 10:01:52 |
| R64.htm | 31471 | 2012-02-23 10:01:52 |
| R65.htm | 26437 | 2012-02-23 10:01:52 |
| R66.htm | 48310 | 2012-02-23 10:01:52 |
| R67.htm | 23628 | 2012-02-23 10:01:52 |
| R68.htm | 43731 | 2012-02-23 10:01:52 |
| R69.htm | 10621 | 2012-02-23 10:01:52 |
| R7.htm | 148952 | 2012-02-23 10:01:52 |
| R70.htm | 16892 | 2012-02-23 10:01:52 |
| R71.htm | 7420 | 2012-02-23 10:01:52 |
| R72.htm | 9131 | 2012-02-23 10:01:52 |
| R73.htm | 21950 | 2012-02-23 10:01:52 |
| R74.htm | 25710 | 2012-02-23 10:01:52 |
| R75.htm | 30294 | 2012-02-23 10:01:52 |
| R76.htm | 122731 | 2012-02-23 10:01:52 |
| R77.htm | 31900 | 2012-02-23 10:01:52 |
| R78.htm | 41844 | 2012-02-23 10:01:52 |
| R79.htm | 9295 | 2012-02-23 10:01:52 |
| R8.htm | 13563 | 2012-02-23 10:01:52 |
| R80.htm | 21483 | 2012-02-23 10:01:52 |
| R81.htm | 57315 | 2012-02-23 10:01:52 |
| R82.htm | 25078 | 2012-02-23 10:01:52 |
| R83.htm | 54501 | 2012-02-23 10:01:52 |
| R84.htm | 12584 | 2012-02-23 10:01:52 |
| R9.htm | 60529 | 2012-02-23 10:01:52 |
| report.css | 2721 | 2012-02-23 10:01:52 |
| Show.js | 6423 | 2012-02-23 10:01:52 |
| unt-20111231.xml | 2326926 | 2012-02-23 10:01:52 |
| unt-20111231.xsd | 106809 | 2012-02-23 10:01:52 |
| unt-20111231_cal.xml | 95167 | 2012-02-23 10:01:52 |
| unt-20111231_def.xml | 286868 | 2012-02-23 10:01:52 |
| unt-20111231_lab.xml | 751918 | 2012-02-23 10:01:52 |
| unt-20111231_pre.xml | 592633 | 2012-02-23 10:01:52 |