Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001564590-20-036766-index-headers.html | 2020-08-05 15:55:53 | |
| 0001564590-20-036766-index.html | 2020-08-05 15:55:53 | |
| 0001564590-20-036766.txt | 2020-08-05 15:55:53 | |
 0001564590-20-036766-xbrl.zip | 488636 | 2020-08-05 15:55:53 |
| FilingSummary.xml | 53751 | 2020-08-05 15:55:53 |
| Financial_Report.xlsx | 142708 | 2020-08-05 15:55:53 |
| MetaLinks.json | 894809 | 2020-08-05 15:55:53 |
| R1.htm | 52235 | 2020-08-05 15:55:53 |
| R10.htm | 33879 | 2020-08-05 15:55:53 |
| R11.htm | 291389 | 2020-08-05 15:55:53 |
| R12.htm | 123326 | 2020-08-05 15:55:53 |
| R13.htm | 551693 | 2020-08-05 15:55:53 |
| R14.htm | 135973 | 2020-08-05 15:55:53 |
| R15.htm | 8477 | 2020-08-05 15:55:53 |
| R16.htm | 253450 | 2020-08-05 15:55:53 |
| R17.htm | 31569 | 2020-08-05 15:55:53 |
| R18.htm | 40939 | 2020-08-05 15:55:53 |
| R19.htm | 38328 | 2020-08-05 15:55:53 |
| R2.htm | 69287 | 2020-08-05 15:55:53 |
| R20.htm | 73016 | 2020-08-05 15:55:53 |
| R21.htm | 2772728 | 2020-08-05 15:55:53 |
| R22.htm | 189167 | 2020-08-05 15:55:53 |
| R23.htm | 18228 | 2020-08-05 15:55:53 |
| R24.htm | 343127 | 2020-08-05 15:55:53 |
| R25.htm | 100827 | 2020-08-05 15:55:53 |
| R26.htm | 39068 | 2020-08-05 15:55:53 |
| R27.htm | 290051 | 2020-08-05 15:55:53 |
| R28.htm | 117063 | 2020-08-05 15:55:53 |
| R29.htm | 550284 | 2020-08-05 15:55:53 |
| R3.htm | 41072 | 2020-08-05 15:55:53 |
| R30.htm | 127749 | 2020-08-05 15:55:53 |
| R31.htm | 249729 | 2020-08-05 15:55:53 |
| R32.htm | 30900 | 2020-08-05 15:55:53 |
| R33.htm | 40745 | 2020-08-05 15:55:53 |
| R34.htm | 29670 | 2020-08-05 15:55:53 |
| R35.htm | 56850 | 2020-08-05 15:55:53 |
| R36.htm | 2770859 | 2020-08-05 15:55:53 |
| R37.htm | 192567 | 2020-08-05 15:55:53 |
| R38.htm | 340648 | 2020-08-05 15:55:53 |
| R39.htm | 98925 | 2020-08-05 15:55:53 |
| R4.htm | 96266 | 2020-08-05 15:55:53 |
| R40.htm | 6048 | 2020-08-05 15:55:53 |
| R41.htm | 42384 | 2020-08-05 15:55:53 |
| R42.htm | 12251 | 2020-08-05 15:55:53 |
| R43.htm | 34827 | 2020-08-05 15:55:53 |
| R44.htm | 60315 | 2020-08-05 15:55:53 |
| R45.htm | 14853 | 2020-08-05 15:55:53 |
| R46.htm | 4906 | 2020-08-05 15:55:53 |
| R47.htm | 9602 | 2020-08-05 15:55:53 |
| R48.htm | 74895 | 2020-08-05 15:55:53 |
| R49.htm | 14205 | 2020-08-05 15:55:53 |
| R5.htm | 17152 | 2020-08-05 15:55:53 |
| R50.htm | 11290 | 2020-08-05 15:55:53 |
| R51.htm | 22799 | 2020-08-05 15:55:53 |
| R52.htm | 24966 | 2020-08-05 15:55:53 |
| R53.htm | 33133 | 2020-08-05 15:55:53 |
| R54.htm | 5308 | 2020-08-05 15:55:53 |
| R55.htm | 31230 | 2020-08-05 15:55:53 |
| R56.htm | 59221 | 2020-08-05 15:55:53 |
| R57.htm | 14456 | 2020-08-05 15:55:53 |
| R58.htm | 20840 | 2020-08-05 15:55:53 |
| R59.htm | 15582 | 2020-08-05 15:55:53 |
| R6.htm | 89658 | 2020-08-05 15:55:53 |
| R60.htm | 9008 | 2020-08-05 15:55:53 |
| R61.htm | 31592 | 2020-08-05 15:55:53 |
| R62.htm | 139406 | 2020-08-05 15:55:53 |
| R63.htm | 98273 | 2020-08-05 15:55:53 |
| R64.htm | 133381 | 2020-08-05 15:55:53 |
| R65.htm | 105069 | 2020-08-05 15:55:53 |
| R66.htm | 44321 | 2020-08-05 15:55:53 |
| R67.htm | 8956 | 2020-08-05 15:55:53 |
| R68.htm | 17118 | 2020-08-05 15:55:53 |
| R69.htm | 31382 | 2020-08-05 15:55:53 |
| R7.htm | 8616 | 2020-08-05 15:55:53 |
| R70.htm | 13009 | 2020-08-05 15:55:53 |
| R71.htm | 9336 | 2020-08-05 15:55:53 |
| R72.htm | 55071 | 2020-08-05 15:55:53 |
| R73.htm | 13962 | 2020-08-05 15:55:53 |
| R74.htm | 35701 | 2020-08-05 15:55:53 |
| R75.htm | 22195 | 2020-08-05 15:55:53 |
| R76.htm | 29546 | 2020-08-05 15:55:53 |
| R77.htm | 68932 | 2020-08-05 15:55:53 |
| R78.htm | 32088 | 2020-08-05 15:55:53 |
| R79.htm | 5133 | 2020-08-05 15:55:53 |
| R8.htm | 107148 | 2020-08-05 15:55:53 |
| R9.htm | 13532 | 2020-08-05 15:55:53 |
| report.css | 2767 | 2020-08-05 15:55:53 |
| Show.js | 1085 | 2020-08-05 15:55:53 |
| wrk-10q_20200630.htm | 8262414 | 2020-08-05 15:55:53 |
| wrk-10q_20200630_htm.xml | 11361604 | 2020-08-05 15:55:53 |
| wrk-20200630.xsd | 102908 | 2020-08-05 15:55:53 |
| wrk-20200630_cal.xml | 154333 | 2020-08-05 15:55:53 |
| wrk-20200630_def.xml | 300330 | 2020-08-05 15:55:53 |
| wrk-20200630_lab.xml | 691297 | 2020-08-05 15:55:53 |
| wrk-20200630_pre.xml | 550074 | 2020-08-05 15:55:53 |
| wrk-ex101_12.htm | 1126932 | 2020-08-05 15:55:53 |
| wrk-ex311_6.htm | 19850 | 2020-08-05 15:55:53 |
| wrk-ex312_7.htm | 13418 | 2020-08-05 15:55:53 |
| wrk-ex321_8.htm | 10368 | 2020-08-05 15:55:53 |