Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001408075-20-000028-index-headers.html | 2020-07-21 08:53:03 | |
| 0001408075-20-000028-index.html | 2020-07-21 08:53:03 | |
| 0001408075-20-000028.txt | 2020-07-21 08:53:03 | |
 0001408075-20-000028-xbrl.zip | 29387 | 2020-07-21 08:53:03 |
| FilingSummary.xml | 1729 | 2020-07-21 08:53:03 |
| Financial_Report.xlsx | 5472 | 2020-07-21 08:53:03 |
| gpk-20200721.htm | 40072 | 2020-07-21 08:53:03 |
| gpk-20200721.xsd | 2437 | 2020-07-21 08:53:03 |
| gpk-20200721_cal.xml | 725 | 2020-07-21 08:53:03 |
| gpk-20200721_def.xml | 1662 | 2020-07-21 08:53:03 |
| gpk-20200721_htm.xml | 10937 | 2020-07-21 08:53:03 |
| gpk-20200721_lab.xml | 25293 | 2020-07-21 08:53:03 |
| gpk-20200721_pre.xml | 13205 | 2020-07-21 08:53:03 |
| gpkexhibit9912020q28-k.htm | 417486 | 2020-07-21 08:53:03 |
| MetaLinks.json | 17938 | 2020-07-21 08:53:03 |
| R1.htm | 40160 | 2020-07-21 08:53:03 |
| report.css | 2767 | 2020-07-21 08:53:03 |
| Show.js | 1085 | 2020-07-21 08:53:03 |