Parent Directory| Name | Size | Last Modified |
|---|---|---|
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| 0001408075-22-000013-index.html | 2022-04-26 08:15:17 | |
| 0001408075-22-000013.txt | 2022-04-26 08:15:17 | |
 0001408075-22-000013-xbrl.zip | 24587 | 2022-04-26 08:15:17 |
| FilingSummary.xml | 1659 | 2022-04-26 08:15:17 |
| Financial_Report.xlsx | 5691 | 2022-04-26 08:15:17 |
| gpk-20220426.htm | 35237 | 2022-04-26 08:15:17 |
| gpk-20220426.xsd | 1918 | 2022-04-26 08:15:17 |
| gpk-20220426_htm.xml | 10990 | 2022-04-26 08:15:17 |
| gpk-20220426_lab.xml | 25149 | 2022-04-26 08:15:17 |
| gpk-20220426_pre.xml | 13061 | 2022-04-26 08:15:17 |
| gpkexhibit9912022q18-k.htm | 236865 | 2022-04-26 08:15:17 |
| MetaLinks.json | 17193 | 2022-04-26 08:15:17 |
| R1.htm | 40259 | 2022-04-26 08:15:17 |
| report.css | 2767 | 2022-04-26 08:15:17 |
| Show.js | 1084 | 2022-04-26 08:15:17 |