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| 0001193125-11-210760-index.html | 2011-08-04 19:38:59 | |
| 0001193125-11-210760.txt | 2011-08-04 19:38:59 | |
 0001193125-11-210760-xbrl.zip | 60515 | 2011-08-04 19:38:59 |
| d10q.htm | 457895 | 2011-08-04 19:38:59 |
| dex311.htm | 9188 | 2011-08-04 19:38:59 |
| dex312.htm | 9223 | 2011-08-04 19:38:59 |
| dex321.htm | 3536 | 2011-08-04 19:38:59 |
| dex322.htm | 3498 | 2011-08-04 19:38:59 |
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| drq-20110630.xsd | 19905 | 2011-08-04 19:38:59 |
| drq-20110630_cal.xml | 37315 | 2011-08-04 19:38:59 |
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| FilingSummary.xml | 13659 | 2011-08-04 19:38:59 |
| Financial_Report.xls | 404797 | 2011-08-04 19:38:59 |
| R1.htm | 25149 | 2011-08-04 19:38:59 |
| R10.htm | 76693 | 2011-08-04 19:38:59 |
| R11.htm | 26484 | 2011-08-04 19:38:59 |
| R12.htm | 96425 | 2011-08-04 19:38:59 |
| R13.htm | 32870 | 2011-08-04 19:38:59 |
| R14.htm | 13183 | 2011-08-04 19:38:59 |
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| R18.htm | 17645 | 2011-08-04 19:38:59 |
| R19.htm | 11453 | 2011-08-04 19:38:59 |
| R2.htm | 84543 | 2011-08-04 19:38:59 |
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| R21.htm | 27424 | 2011-08-04 19:38:59 |
| R22.htm | 13844 | 2011-08-04 19:38:59 |
| R23.htm | 28510 | 2011-08-04 19:38:59 |
| R3.htm | 21902 | 2011-08-04 19:38:59 |
| R4.htm | 62663 | 2011-08-04 19:38:59 |
| R5.htm | 69587 | 2011-08-04 19:38:59 |
| R6.htm | 11120 | 2011-08-04 19:38:59 |
| R7.htm | 58640 | 2011-08-04 19:38:59 |
| R8.htm | 7309 | 2011-08-04 19:38:59 |
| R9.htm | 15038 | 2011-08-04 19:38:59 |
| report.css | 2721 | 2011-08-04 19:38:59 |
| Show.js | 6423 | 2011-08-04 19:38:59 |