Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000757011-16-000175-index-headers.html | 2016-04-21 12:03:00 | |
| 0000757011-16-000175-index.html | 2016-04-21 12:03:00 | |
| 0000757011-16-000175.txt | 2016-04-21 12:03:00 | |
 0000757011-16-000175-xbrl.zip | 193173 | 2016-04-21 12:03:00 |
| FilingSummary.xml | 39578 | 2016-04-21 12:03:00 |
| Financial_Report.xlsx | 73664 | 2016-04-21 12:03:00 |
| R1.htm | 19845 | 2016-04-21 12:03:00 |
| R10.htm | 37312 | 2016-04-21 12:03:00 |
| R11.htm | 37350 | 2016-04-21 12:03:00 |
| R12.htm | 39588 | 2016-04-21 12:03:00 |
| R13.htm | 48112 | 2016-04-21 12:03:00 |
| R14.htm | 31689 | 2016-04-21 12:03:00 |
| R15.htm | 112512 | 2016-04-21 12:03:00 |
| R16.htm | 77779 | 2016-04-21 12:03:00 |
| R17.htm | 32523 | 2016-04-21 12:03:00 |
| R18.htm | 30589 | 2016-04-21 12:03:00 |
| R19.htm | 24641 | 2016-04-21 12:03:00 |
| R2.htm | 47613 | 2016-04-21 12:03:00 |
| R20.htm | 86145 | 2016-04-21 12:03:00 |
| R21.htm | 13334 | 2016-04-21 12:03:00 |
| R22.htm | 11592 | 2016-04-21 12:03:00 |
| R23.htm | 9252 | 2016-04-21 12:03:00 |
| R24.htm | 48901 | 2016-04-21 12:03:00 |
| R25.htm | 34504 | 2016-04-21 12:03:00 |
| R26.htm | 38407 | 2016-04-21 12:03:00 |
| R27.htm | 41722 | 2016-04-21 12:03:00 |
| R28.htm | 51601 | 2016-04-21 12:03:00 |
| R29.htm | 24239 | 2016-04-21 12:03:00 |
| R3.htm | 35356 | 2016-04-21 12:03:00 |
| R30.htm | 100604 | 2016-04-21 12:03:00 |
| R31.htm | 72456 | 2016-04-21 12:03:00 |
| R32.htm | 30046 | 2016-04-21 12:03:00 |
| R33.htm | 23790 | 2016-04-21 12:03:00 |
| R34.htm | 25727 | 2016-04-21 12:03:00 |
| R35.htm | 82924 | 2016-04-21 12:03:00 |
| R36.htm | 15675 | 2016-04-21 12:03:00 |
| R37.htm | 8800 | 2016-04-21 12:03:00 |
| R38.htm | 23609 | 2016-04-21 12:03:00 |
| R39.htm | 28333 | 2016-04-21 12:03:00 |
| R4.htm | 21712 | 2016-04-21 12:03:00 |
| R40.htm | 20994 | 2016-04-21 12:03:00 |
| R41.htm | 25940 | 2016-04-21 12:03:00 |
| R42.htm | 10009 | 2016-04-21 12:03:00 |
| R43.htm | 18683 | 2016-04-21 12:03:00 |
| R44.htm | 17919 | 2016-04-21 12:03:00 |
| R45.htm | 5121 | 2016-04-21 12:03:00 |
| R46.htm | 13759 | 2016-04-21 12:03:00 |
| R47.htm | 8911 | 2016-04-21 12:03:00 |
| R48.htm | 8739 | 2016-04-21 12:03:00 |
| R49.htm | 5321 | 2016-04-21 12:03:00 |
| R5.htm | 83562 | 2016-04-21 12:03:00 |
| R50.htm | 27272 | 2016-04-21 12:03:00 |
| R51.htm | 54623 | 2016-04-21 12:03:00 |
| R52.htm | 22988 | 2016-04-21 12:03:00 |
| R53.htm | 31900 | 2016-04-21 12:03:00 |
| R54.htm | 28714 | 2016-04-21 12:03:00 |
| R55.htm | 49384 | 2016-04-21 12:03:00 |
| R56.htm | 21771 | 2016-04-21 12:03:00 |
| R57.htm | 12305 | 2016-04-21 12:03:00 |
| R58.htm | 26081 | 2016-04-21 12:03:00 |
| R59.htm | 12138 | 2016-04-21 12:03:00 |
| R6.htm | 20519 | 2016-04-21 12:03:00 |
| R60.htm | 12016 | 2016-04-21 12:03:00 |
| R61.htm | 10024 | 2016-04-21 12:03:00 |
| R62.htm | 4911 | 2016-04-21 12:03:00 |
| R63.htm | 24923 | 2016-04-21 12:03:00 |
| R64.htm | 23330 | 2016-04-21 12:03:00 |
| R65.htm | 4333 | 2016-04-21 12:03:00 |
| R66.htm | 30127 | 2016-04-21 12:03:00 |
| R67.htm | 15693 | 2016-04-21 12:03:00 |
| R68.htm | 17609 | 2016-04-21 12:03:00 |
| R7.htm | 94880 | 2016-04-21 12:03:00 |
| R8.htm | 18140 | 2016-04-21 12:03:00 |
| R9.htm | 56507 | 2016-04-21 12:03:00 |
| report.css | 2767 | 2016-04-21 12:03:00 |
| Show.js | 1410 | 2016-04-21 12:03:00 |
| usg-20160331.xml | 1576468 | 2016-04-21 12:03:00 |
| usg-20160331.xsd | 51841 | 2016-04-21 12:03:00 |
| usg-20160331_cal.xml | 81963 | 2016-04-21 12:03:00 |
| usg-20160331_def.xml | 223129 | 2016-04-21 12:03:00 |
| usg-20160331_lab.xml | 666672 | 2016-04-21 12:03:00 |
| usg-20160331_pre.xml | 390387 | 2016-04-21 12:03:00 |
| usg10-q03312016q1.htm | 1224221 | 2016-04-21 12:03:00 |
| usg_ex311x0331201610-q.htm | 11911 | 2016-04-21 12:03:00 |
| usg_ex312x0331201610-q.htm | 11869 | 2016-04-21 12:03:00 |
| usg_ex321x0331201610-q.htm | 5007 | 2016-04-21 12:03:00 |
| usg_ex322x0331201610-q.htm | 5013 | 2016-04-21 12:03:00 |
| usg_ex95x0331201610-q.htm | 19549 | 2016-04-21 12:03:00 |