Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001476765-24-000074-index-headers.html | 2024-08-05 16:08:17 | |
| 0001476765-24-000074-index.html | 2024-08-05 16:08:17 | |
| 0001476765-24-000074.txt | 2024-08-05 16:08:17 | |
 0001476765-24-000074-xbrl.zip | 1037605 | 2024-08-05 16:08:17 |
| FilingSummary.xml | 49022 | 2024-08-05 16:08:17 |
| Financial_Report.xlsx | 878651 | 2024-08-05 16:08:17 |
| gbdc-20240630.htm | 21185674 | 2024-08-05 16:08:17 |
| gbdc-20240630.xsd | 105491 | 2024-08-05 16:08:17 |
| gbdc-20240630_cal.xml | 101436 | 2024-08-05 16:08:17 |
| gbdc-20240630_def.xml | 742146 | 2024-08-05 16:08:17 |
| gbdc-20240630_htm.xml | 19027012 | 2024-08-05 16:08:17 |
| gbdc-20240630_lab.xml | 941222 | 2024-08-05 16:08:17 |
| gbdc-20240630_pre.xml | 829029 | 2024-08-05 16:08:17 |
| gbdcfy2024q310-qexhibit311.htm | 8060 | 2024-08-05 16:08:17 |
| gbdcfy2024q310-qexhibit312.htm | 8133 | 2024-08-05 16:08:17 |
| gbdcfy2024q310-qexhibit321.htm | 7965 | 2024-08-05 16:08:17 |
| MetaLinks.json | 1223118 | 2024-08-05 16:08:17 |
| R1.htm | 53114 | 2024-08-05 16:08:17 |
| R10.htm | 9772 | 2024-08-05 16:08:17 |
| R11.htm | 59030 | 2024-08-05 16:08:17 |
| R12.htm | 40922 | 2024-08-05 16:08:17 |
| R13.htm | 316900 | 2024-08-05 16:08:17 |
| R14.htm | 219534 | 2024-08-05 16:08:17 |
| R15.htm | 175703 | 2024-08-05 16:08:17 |
| R16.htm | 375460 | 2024-08-05 16:08:17 |
| R17.htm | 9837 | 2024-08-05 16:08:17 |
| R18.htm | 69510 | 2024-08-05 16:08:17 |
| R19.htm | 16246 | 2024-08-05 16:08:17 |
| R2.htm | 205300 | 2024-08-05 16:08:17 |
| R20.htm | 21505 | 2024-08-05 16:08:17 |
| R21.htm | 53677 | 2024-08-05 16:08:17 |
| R22.htm | 20841 | 2024-08-05 16:08:17 |
| R23.htm | 5740 | 2024-08-05 16:08:17 |
| R24.htm | 15442 | 2024-08-05 16:08:17 |
| R25.htm | 8483 | 2024-08-05 16:08:17 |
| R26.htm | 99352 | 2024-08-05 16:08:17 |
| R27.htm | 91353 | 2024-08-05 16:08:17 |
| R28.htm | 16237 | 2024-08-05 16:08:17 |
| R29.htm | 320842 | 2024-08-05 16:08:17 |
| R3.htm | 30859 | 2024-08-05 16:08:17 |
| R30.htm | 222749 | 2024-08-05 16:08:17 |
| R31.htm | 168742 | 2024-08-05 16:08:17 |
| R32.htm | 323089 | 2024-08-05 16:08:17 |
| R33.htm | 68679 | 2024-08-05 16:08:17 |
| R34.htm | 15670 | 2024-08-05 16:08:17 |
| R35.htm | 14872 | 2024-08-05 16:08:17 |
| R36.htm | 53357 | 2024-08-05 16:08:17 |
| R37.htm | 18259 | 2024-08-05 16:08:17 |
| R38.htm | 80371 | 2024-08-05 16:08:17 |
| R39.htm | 101935 | 2024-08-05 16:08:17 |
| R4.htm | 148086 | 2024-08-05 16:08:17 |
| R40.htm | 36902 | 2024-08-05 16:08:17 |
| R41.htm | 118565 | 2024-08-05 16:08:17 |
| R42.htm | 326755 | 2024-08-05 16:08:17 |
| R43.htm | 212207 | 2024-08-05 16:08:17 |
| R44.htm | 132481 | 2024-08-05 16:08:17 |
| R45.htm | 15263 | 2024-08-05 16:08:17 |
| R46.htm | 8680 | 2024-08-05 16:08:17 |
| R47.htm | 32515 | 2024-08-05 16:08:17 |
| R48.htm | 20488 | 2024-08-05 16:08:17 |
| R49.htm | 14302 | 2024-08-05 16:08:17 |
| R5.htm | 89876 | 2024-08-05 16:08:17 |
| R50.htm | 79440 | 2024-08-05 16:08:17 |
| R51.htm | 8921 | 2024-08-05 16:08:17 |
| R52.htm | 60600 | 2024-08-05 16:08:17 |
| R53.htm | 87134 | 2024-08-05 16:08:17 |
| R54.htm | 6993 | 2024-08-05 16:08:17 |
| R55.htm | 6404 | 2024-08-05 16:08:17 |
| R56.htm | 93445 | 2024-08-05 16:08:17 |
| R57.htm | 97496 | 2024-08-05 16:08:17 |
| R58.htm | 61475 | 2024-08-05 16:08:17 |
| R59.htm | 78682 | 2024-08-05 16:08:17 |
| R6.htm | 194377 | 2024-08-05 16:08:17 |
| R60.htm | 65597 | 2024-08-05 16:08:17 |
| R61.htm | 47152 | 2024-08-05 16:08:17 |
| R62.htm | 54980 | 2024-08-05 16:08:17 |
| R63.htm | 35101 | 2024-08-05 16:08:17 |
| R64.htm | 42767 | 2024-08-05 16:08:17 |
| R65.htm | 25656 | 2024-08-05 16:08:17 |
| R66.htm | 26629 | 2024-08-05 16:08:17 |
| R67.htm | 26626 | 2024-08-05 16:08:17 |
| R68.htm | 35949 | 2024-08-05 16:08:17 |
| R69.htm | 35129 | 2024-08-05 16:08:17 |
| R7.htm | 10545 | 2024-08-05 16:08:17 |
| R70.htm | 33037 | 2024-08-05 16:08:17 |
| R71.htm | 58486 | 2024-08-05 16:08:17 |
| R72.htm | 8377 | 2024-08-05 16:08:17 |
| R73.htm | 116512 | 2024-08-05 16:08:17 |
| R74.htm | 32950 | 2024-08-05 16:08:17 |
| R75.htm | 21032 | 2024-08-05 16:08:17 |
| R76.htm | 18807 | 2024-08-05 16:08:17 |
| R77.htm | 25825 | 2024-08-05 16:08:17 |
| R78.htm | 10829 | 2024-08-05 16:08:17 |
| R79.htm | 49804 | 2024-08-05 16:08:17 |
| R8.htm | 10990601 | 2024-08-05 16:08:17 |
| R80.htm | 10614 | 2024-08-05 16:08:17 |
| R9.htm | 7431094 | 2024-08-05 16:08:17 |
| report.css | 2767 | 2024-08-05 16:08:17 |
| Show.js | 1085 | 2024-08-05 16:08:17 |