Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001564590-17-002889-index-headers.html | 2017-02-28 17:01:31 | |
| 0001564590-17-002889-index.html | 2017-02-28 17:01:31 | |
| 0001564590-17-002889.txt | 2017-02-28 17:01:31 | |
 0001564590-17-002889-xbrl.zip | 333881 | 2017-02-28 17:01:31 |
| FilingSummary.xml | 66956 | 2017-02-28 17:01:31 |
| Financial_Report.xlsx | 137441 | 2017-02-28 17:01:31 |
 g2017022819323754916242.jpg | 25491 | 2017-02-28 17:01:31 |
 g2017022819323755616243.jpg | 26990 | 2017-02-28 17:01:31 |
 g2017022819323756316244.jpg | 55871 | 2017-02-28 17:01:31 |
 g2017022819330626215693.jpg | 4792 | 2017-02-28 17:01:31 |
 g2017022819331256115694.jpg | 30035 | 2017-02-28 17:01:31 |
| gldd-10k_20161231.htm | 7164895 | 2017-02-28 17:01:31 |
| gldd-20161231.xml | 8333682 | 2017-02-28 17:01:31 |
| gldd-20161231.xsd | 88515 | 2017-02-28 17:01:31 |
| gldd-20161231_cal.xml | 131301 | 2017-02-28 17:01:31 |
| gldd-20161231_def.xml | 370465 | 2017-02-28 17:01:31 |
| gldd-20161231_lab.xml | 701740 | 2017-02-28 17:01:31 |
| gldd-20161231_pre.xml | 615986 | 2017-02-28 17:01:31 |
| gldd-ex1015_373.htm | 115852 | 2017-02-28 17:01:31 |
| gldd-ex1016_374.htm | 104030 | 2017-02-28 17:01:31 |
| gldd-ex1038_261.htm | 2595433 | 2017-02-28 17:01:31 |
| gldd-ex1039_741.htm | 46084 | 2017-02-28 17:01:31 |
| gldd-ex1045_265.htm | 112365 | 2017-02-28 17:01:31 |
| gldd-ex121_16.htm | 121947 | 2017-02-28 17:01:31 |
| gldd-ex211_193.htm | 21685 | 2017-02-28 17:01:31 |
| gldd-ex231_6.htm | 2694 | 2017-02-28 17:01:31 |
| gldd-ex232_13.htm | 2210 | 2017-02-28 17:01:31 |
| gldd-ex233_12.htm | 2354 | 2017-02-28 17:01:31 |
| gldd-ex234_260.htm | 2470 | 2017-02-28 17:01:31 |
| gldd-ex311_19.htm | 16125 | 2017-02-28 17:01:31 |
| gldd-ex321_10.htm | 7335 | 2017-02-28 17:01:31 |
| gldd-ex991_745.htm | 369390 | 2017-02-28 17:01:31 |
| gldd-ex992_743.htm | 492915 | 2017-02-28 17:01:31 |
| gldd-ex993_264.htm | 41749 | 2017-02-28 17:01:31 |
| R1.htm | 29978 | 2017-02-28 17:01:31 |
| R10.htm | 73130 | 2017-02-28 17:01:31 |
| R11.htm | 7805 | 2017-02-28 17:01:31 |
| R12.htm | 106947 | 2017-02-28 17:01:31 |
| R13.htm | 46956 | 2017-02-28 17:01:31 |
| R14.htm | 91228 | 2017-02-28 17:01:31 |
| R15.htm | 40197 | 2017-02-28 17:01:31 |
| R16.htm | 69286 | 2017-02-28 17:01:31 |
| R17.htm | 191991 | 2017-02-28 17:01:31 |
| R18.htm | 266942 | 2017-02-28 17:01:31 |
| R19.htm | 112149 | 2017-02-28 17:01:31 |
| R2.htm | 90246 | 2017-02-28 17:01:31 |
| R20.htm | 38020 | 2017-02-28 17:01:31 |
| R21.htm | 32935 | 2017-02-28 17:01:31 |
| R22.htm | 70213 | 2017-02-28 17:01:31 |
| R23.htm | 7803 | 2017-02-28 17:01:31 |
| R24.htm | 47640 | 2017-02-28 17:01:31 |
| R25.htm | 223937 | 2017-02-28 17:01:31 |
| R26.htm | 2242841 | 2017-02-28 17:01:31 |
| R27.htm | 180309 | 2017-02-28 17:01:31 |
| R28.htm | 78440 | 2017-02-28 17:01:31 |
| R29.htm | 10864 | 2017-02-28 17:01:31 |
| R3.htm | 10725 | 2017-02-28 17:01:31 |
| R30.htm | 70908 | 2017-02-28 17:01:31 |
| R31.htm | 105587 | 2017-02-28 17:01:31 |
| R32.htm | 44828 | 2017-02-28 17:01:31 |
| R33.htm | 86184 | 2017-02-28 17:01:31 |
| R34.htm | 39633 | 2017-02-28 17:01:31 |
| R35.htm | 63457 | 2017-02-28 17:01:31 |
| R36.htm | 188599 | 2017-02-28 17:01:31 |
| R37.htm | 268376 | 2017-02-28 17:01:31 |
| R38.htm | 108537 | 2017-02-28 17:01:31 |
| R39.htm | 33715 | 2017-02-28 17:01:31 |
| R4.htm | 72714 | 2017-02-28 17:01:31 |
| R40.htm | 23017 | 2017-02-28 17:01:31 |
| R41.htm | 72466 | 2017-02-28 17:01:31 |
| R42.htm | 43856 | 2017-02-28 17:01:31 |
| R43.htm | 219842 | 2017-02-28 17:01:31 |
| R44.htm | 2239504 | 2017-02-28 17:01:31 |
| R45.htm | 24891 | 2017-02-28 17:01:31 |
| R46.htm | 16935 | 2017-02-28 17:01:31 |
| R47.htm | 7413 | 2017-02-28 17:01:31 |
| R48.htm | 28123 | 2017-02-28 17:01:31 |
| R49.htm | 13697 | 2017-02-28 17:01:31 |
| R5.htm | 18886 | 2017-02-28 17:01:31 |
| R50.htm | 20327 | 2017-02-28 17:01:31 |
| R51.htm | 19555 | 2017-02-28 17:01:31 |
| R52.htm | 5770 | 2017-02-28 17:01:31 |
| R53.htm | 19604 | 2017-02-28 17:01:31 |
| R54.htm | 12463 | 2017-02-28 17:01:31 |
| R55.htm | 18045 | 2017-02-28 17:01:31 |
| R56.htm | 13740 | 2017-02-28 17:01:31 |
| R57.htm | 16845 | 2017-02-28 17:01:31 |
| R58.htm | 22673 | 2017-02-28 17:01:31 |
| R59.htm | 25105 | 2017-02-28 17:01:31 |
| R6.htm | 8239 | 2017-02-28 17:01:31 |
| R60.htm | 111870 | 2017-02-28 17:01:31 |
| R61.htm | 18839 | 2017-02-28 17:01:31 |
| R62.htm | 7927 | 2017-02-28 17:01:31 |
| R63.htm | 40468 | 2017-02-28 17:01:31 |
| R64.htm | 14966 | 2017-02-28 17:01:31 |
| R65.htm | 10708 | 2017-02-28 17:01:31 |
| R66.htm | 18637 | 2017-02-28 17:01:31 |
| R67.htm | 16264 | 2017-02-28 17:01:31 |
| R68.htm | 11699 | 2017-02-28 17:01:31 |
| R69.htm | 9333 | 2017-02-28 17:01:31 |
| R7.htm | 60506 | 2017-02-28 17:01:31 |
| R70.htm | 18037 | 2017-02-28 17:01:31 |
| R71.htm | 26668 | 2017-02-28 17:01:31 |
| R72.htm | 27247 | 2017-02-28 17:01:31 |
| R73.htm | 11235 | 2017-02-28 17:01:31 |
| R74.htm | 32140 | 2017-02-28 17:01:31 |
| R75.htm | 45152 | 2017-02-28 17:01:31 |
| R76.htm | 11253 | 2017-02-28 17:01:31 |
| R77.htm | 34824 | 2017-02-28 17:01:31 |
| R78.htm | 27320 | 2017-02-28 17:01:31 |
| R79.htm | 12574 | 2017-02-28 17:01:31 |
| R8.htm | 151044 | 2017-02-28 17:01:31 |
| R80.htm | 15576 | 2017-02-28 17:01:31 |
| R81.htm | 34958 | 2017-02-28 17:01:31 |
| R82.htm | 19419 | 2017-02-28 17:01:31 |
| R83.htm | 19575 | 2017-02-28 17:01:31 |
| R84.htm | 22878 | 2017-02-28 17:01:31 |
| R85.htm | 18755 | 2017-02-28 17:01:31 |
| R86.htm | 60866 | 2017-02-28 17:01:31 |
| R87.htm | 17214 | 2017-02-28 17:01:31 |
| R88.htm | 18690 | 2017-02-28 17:01:31 |
| R89.htm | 35052 | 2017-02-28 17:01:31 |
| R9.htm | 41844 | 2017-02-28 17:01:31 |
| R90.htm | 35430 | 2017-02-28 17:01:31 |
| R91.htm | 18214 | 2017-02-28 17:01:31 |
| R92.htm | 11911 | 2017-02-28 17:01:31 |
| R93.htm | 10628 | 2017-02-28 17:01:31 |
| R94.htm | 121710 | 2017-02-28 17:01:31 |
| R95.htm | 72937 | 2017-02-28 17:01:31 |
| R96.htm | 112938 | 2017-02-28 17:01:31 |
| R97.htm | 16856 | 2017-02-28 17:01:31 |
| report.css | 2768 | 2017-02-28 17:01:31 |
| Show.js | 1411 | 2017-02-28 17:01:31 |