Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001408075-20-000023-index-headers.html | 2020-05-21 08:55:47 | |
| 0001408075-20-000023-index.html | 2020-05-21 08:55:47 | |
| 0001408075-20-000023.txt | 2020-05-21 08:55:47 | |
 0001408075-20-000023-xbrl.zip | 12306 | 2020-05-21 08:55:47 |
| FilingSummary.xml | 1685 | 2020-05-21 08:55:47 |
| Financial_Report.xlsx | 5812 | 2020-05-21 08:55:47 |
| gpk-20200520.htm | 54856 | 2020-05-21 08:55:47 |
| gpk-20200520.xsd | 2578 | 2020-05-21 08:55:47 |
| gpk-20200520_cal.xml | 725 | 2020-05-21 08:55:47 |
| gpk-20200520_def.xml | 1662 | 2020-05-21 08:55:47 |
| gpk-20200520_htm.xml | 10937 | 2020-05-21 08:55:47 |
| gpk-20200520_lab.xml | 25293 | 2020-05-21 08:55:47 |
| gpk-20200520_pre.xml | 13205 | 2020-05-21 08:55:47 |
| MetaLinks.json | 18597 | 2020-05-21 08:55:47 |
| R1.htm | 40154 | 2020-05-21 08:55:47 |
| report.css | 2767 | 2020-05-21 08:55:47 |
| Show.js | 1084 | 2020-05-21 08:55:47 |