Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950170-24-016412-index-headers.html | 2024-02-16 16:27:26 | |
| 0000950170-24-016412-index.html | 2024-02-16 16:27:26 | |
| 0000950170-24-016412.txt | 2024-02-16 16:27:26 | |
 0000950170-24-016412-xbrl.zip | 681043 | 2024-02-16 16:27:26 |
| FilingSummary.xml | 48834 | 2024-02-16 16:27:26 |
| Financial_Report.xlsx | 119073 | 2024-02-16 16:27:26 |
| gldd-20231231.htm | 2733506 | 2024-02-16 16:27:26 |
| gldd-20231231.xsd | 1486975 | 2024-02-16 16:27:26 |
| gldd-20231231_htm.xml | 2135141 | 2024-02-16 16:27:26 |
| gldd-ex10_4.htm | 161944 | 2024-02-16 16:27:26 |
| gldd-ex21_1.htm | 18214 | 2024-02-16 16:27:26 |
| gldd-ex23_1.htm | 4235 | 2024-02-16 16:27:26 |
| gldd-ex31_1.htm | 13062 | 2024-02-16 16:27:26 |
| gldd-ex31_2.htm | 12972 | 2024-02-16 16:27:26 |
| gldd-ex32_1.htm | 7702 | 2024-02-16 16:27:26 |
| gldd-ex32_2.htm | 8025 | 2024-02-16 16:27:26 |
| gldd-ex97.htm | 25264 | 2024-02-16 16:27:26 |
 img131803436_0.jpg | 16544 | 2024-02-16 16:27:26 |
 img152358502_0.jpg | 27347 | 2024-02-16 16:27:26 |
 img152358502_1.jpg | 497992 | 2024-02-16 16:27:26 |
| MetaLinks.json | 1046832 | 2024-02-16 16:27:26 |
| R1.htm | 74603 | 2024-02-16 16:27:26 |
| R10.htm | 12764 | 2024-02-16 16:27:26 |
| R11.htm | 41447 | 2024-02-16 16:27:26 |
| R12.htm | 38520 | 2024-02-16 16:27:26 |
| R13.htm | 29499 | 2024-02-16 16:27:26 |
| R14.htm | 121086 | 2024-02-16 16:27:26 |
| R15.htm | 29050 | 2024-02-16 16:27:26 |
| R16.htm | 47967 | 2024-02-16 16:27:26 |
| R17.htm | 125934 | 2024-02-16 16:27:26 |
| R18.htm | 160880 | 2024-02-16 16:27:26 |
| R19.htm | 76001 | 2024-02-16 16:27:26 |
| R2.htm | 105870 | 2024-02-16 16:27:26 |
| R20.htm | 170388 | 2024-02-16 16:27:26 |
| R21.htm | 13483 | 2024-02-16 16:27:26 |
| R22.htm | 18085 | 2024-02-16 16:27:26 |
| R23.htm | 83600 | 2024-02-16 16:27:26 |
| R24.htm | 70490 | 2024-02-16 16:27:26 |
| R25.htm | 9903 | 2024-02-16 16:27:26 |
| R26.htm | 34199 | 2024-02-16 16:27:26 |
| R27.htm | 24856 | 2024-02-16 16:27:26 |
| R28.htm | 120459 | 2024-02-16 16:27:26 |
| R29.htm | 28379 | 2024-02-16 16:27:26 |
| R3.htm | 12047 | 2024-02-16 16:27:26 |
| R30.htm | 31313 | 2024-02-16 16:27:26 |
| R31.htm | 107708 | 2024-02-16 16:27:26 |
| R32.htm | 147959 | 2024-02-16 16:27:26 |
| R33.htm | 60034 | 2024-02-16 16:27:26 |
| R34.htm | 153341 | 2024-02-16 16:27:26 |
| R35.htm | 16674 | 2024-02-16 16:27:26 |
| R36.htm | 19768 | 2024-02-16 16:27:26 |
| R37.htm | 34673 | 2024-02-16 16:27:26 |
| R38.htm | 9592 | 2024-02-16 16:27:26 |
| R39.htm | 19105 | 2024-02-16 16:27:26 |
| R4.htm | 74869 | 2024-02-16 16:27:26 |
| R40.htm | 11830 | 2024-02-16 16:27:26 |
| R41.htm | 12451 | 2024-02-16 16:27:26 |
| R42.htm | 15527 | 2024-02-16 16:27:26 |
| R43.htm | 35770 | 2024-02-16 16:27:26 |
| R44.htm | 13323 | 2024-02-16 16:27:26 |
| R45.htm | 19535 | 2024-02-16 16:27:26 |
| R46.htm | 13791 | 2024-02-16 16:27:26 |
| R47.htm | 20049 | 2024-02-16 16:27:26 |
| R48.htm | 20779 | 2024-02-16 16:27:26 |
| R49.htm | 70437 | 2024-02-16 16:27:26 |
| R5.htm | 22800 | 2024-02-16 16:27:26 |
| R50.htm | 9374 | 2024-02-16 16:27:26 |
| R51.htm | 31979 | 2024-02-16 16:27:26 |
| R52.htm | 42290 | 2024-02-16 16:27:26 |
| R53.htm | 23319 | 2024-02-16 16:27:26 |
| R54.htm | 28141 | 2024-02-16 16:27:26 |
| R55.htm | 4729 | 2024-02-16 16:27:26 |
| R56.htm | 10811 | 2024-02-16 16:27:26 |
| R57.htm | 14761 | 2024-02-16 16:27:26 |
| R58.htm | 41727 | 2024-02-16 16:27:26 |
| R59.htm | 21215 | 2024-02-16 16:27:26 |
| R6.htm | 4812 | 2024-02-16 16:27:26 |
| R60.htm | 32142 | 2024-02-16 16:27:26 |
| R61.htm | 63941 | 2024-02-16 16:27:26 |
| R62.htm | 21731 | 2024-02-16 16:27:26 |
| R63.htm | 35092 | 2024-02-16 16:27:26 |
| R64.htm | 45558 | 2024-02-16 16:27:26 |
| R65.htm | 28661 | 2024-02-16 16:27:26 |
| R66.htm | 27709 | 2024-02-16 16:27:26 |
| R67.htm | 16626 | 2024-02-16 16:27:26 |
| R68.htm | 22871 | 2024-02-16 16:27:26 |
| R69.htm | 22417 | 2024-02-16 16:27:26 |
| R7.htm | 52962 | 2024-02-16 16:27:26 |
| R70.htm | 12635 | 2024-02-16 16:27:26 |
| R71.htm | 31079 | 2024-02-16 16:27:26 |
| R72.htm | 16696 | 2024-02-16 16:27:26 |
| R8.htm | 96575 | 2024-02-16 16:27:26 |
| R9.htm | 15215 | 2024-02-16 16:27:26 |
| report.css | 2767 | 2024-02-16 16:27:26 |
| Show.js | 1085 | 2024-02-16 16:27:26 |