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| 0000910638-17-000003-index.html | 2017-02-28 08:04:00 | |
| 0000910638-17-000003.txt | 2017-02-28 08:04:00 | |
 0000910638-17-000003-xbrl.zip | 277664 | 2017-02-28 08:04:00 |
| ddd-20161231.xml | 4133252 | 2017-02-28 08:04:00 |
| ddd-20161231.xsd | 77289 | 2017-02-28 08:04:00 |
| ddd-20161231x10k.htm | 5245532 | 2017-02-28 08:04:00 |
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| ddd-20161231xex21_1.htm | 59585 | 2017-02-28 08:04:00 |
| ddd-20161231xex23_1.htm | 5932 | 2017-02-28 08:04:00 |
| ddd-20161231xex31_1.htm | 33695 | 2017-02-28 08:04:00 |
| ddd-20161231xex31_2.htm | 35056 | 2017-02-28 08:04:00 |
| ddd-20161231xex32_1.htm | 12408 | 2017-02-28 08:04:00 |
| ddd-20161231xex32_2.htm | 12175 | 2017-02-28 08:04:00 |
| ddd-20161231xex4_17.htm | 43505 | 2017-02-28 08:04:00 |
| ddd-20161231xex4_18.htm | 50695 | 2017-02-28 08:04:00 |
| ddd-20161231_cal.xml | 112276 | 2017-02-28 08:04:00 |
| ddd-20161231_def.xml | 294226 | 2017-02-28 08:04:00 |
| ddd-20161231_lab.xml | 636325 | 2017-02-28 08:04:00 |
| ddd-20161231_pre.xml | 604760 | 2017-02-28 08:04:00 |
| FilingSummary.xml | 63029 | 2017-02-28 08:04:00 |
| Financial_Report.xlsx | 148282 | 2017-02-28 08:04:00 |
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| report.css | 2768 | 2017-02-28 08:04:00 |
| Show.js | 1411 | 2017-02-28 08:04:00 |