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| 0001193125-15-037407-index.html | 2015-02-06 16:20:54 | |
| 0001193125-15-037407.txt | 2015-02-06 16:20:54 | |
 0001193125-15-037407-xbrl.zip | 75031 | 2015-02-06 16:20:54 |
| d845949d10q.htm | 235403 | 2015-02-06 16:20:54 |
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| d845949dex321.htm | 3773 | 2015-02-06 16:20:54 |
| d845949dex322.htm | 3614 | 2015-02-06 16:20:54 |
| dwsn-20141231.xml | 237679 | 2015-02-06 16:20:54 |
| dwsn-20141231.xsd | 28459 | 2015-02-06 16:20:54 |
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| FilingSummary.xml | 16919 | 2015-02-06 16:20:54 |
| Financial_Report.xls | 226553 | 2015-02-06 16:20:54 |
| Financial_Report.xlsx | 69035 | 2015-02-06 16:20:54 |
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| report.css | 2740 | 2015-02-06 16:20:54 |
| Show.js | 1410 | 2015-02-06 16:20:54 |