Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001262823-18-000016-index-headers.html | 2018-05-03 16:02:05 | |
| 0001262823-18-000016-index.html | 2018-05-03 16:02:05 | |
| 0001262823-18-000016.txt | 2018-05-03 16:02:05 | |
 0001262823-18-000016-xbrl.zip | 204796 | 2018-05-03 16:02:05 |
| a2018033110qwlk.htm | 1596277 | 2018-05-03 16:02:05 |
| exhibit311_20180331.htm | 21634 | 2018-05-03 16:02:05 |
| exhibit312_20180331.htm | 21644 | 2018-05-03 16:02:05 |
| exhibit321_20180331.htm | 18520 | 2018-05-03 16:02:05 |
| FilingSummary.xml | 37905 | 2018-05-03 16:02:05 |
| Financial_Report.xlsx | 82023 | 2018-05-03 16:02:05 |
| R1.htm | 21948 | 2018-05-03 16:02:05 |
| R10.htm | 6998 | 2018-05-03 16:02:05 |
| R11.htm | 22499 | 2018-05-03 16:02:05 |
| R12.htm | 14806 | 2018-05-03 16:02:05 |
| R13.htm | 106845 | 2018-05-03 16:02:05 |
| R14.htm | 30031 | 2018-05-03 16:02:05 |
| R15.htm | 58833 | 2018-05-03 16:02:05 |
| R16.htm | 8700 | 2018-05-03 16:02:05 |
| R17.htm | 34130 | 2018-05-03 16:02:05 |
| R18.htm | 8563 | 2018-05-03 16:02:05 |
| R19.htm | 16499 | 2018-05-03 16:02:05 |
| R2.htm | 78634 | 2018-05-03 16:02:05 |
| R20.htm | 114300 | 2018-05-03 16:02:05 |
| R21.htm | 603072 | 2018-05-03 16:02:05 |
| R22.htm | 34939 | 2018-05-03 16:02:05 |
| R23.htm | 34030 | 2018-05-03 16:02:05 |
| R24.htm | 19963 | 2018-05-03 16:02:05 |
| R25.htm | 15690 | 2018-05-03 16:02:05 |
| R26.htm | 102365 | 2018-05-03 16:02:05 |
| R27.htm | 33744 | 2018-05-03 16:02:05 |
| R28.htm | 55618 | 2018-05-03 16:02:05 |
| R29.htm | 34792 | 2018-05-03 16:02:05 |
| R3.htm | 14564 | 2018-05-03 16:02:05 |
| R30.htm | 119385 | 2018-05-03 16:02:05 |
| R31.htm | 598737 | 2018-05-03 16:02:05 |
| R32.htm | 34636 | 2018-05-03 16:02:05 |
| R33.htm | 10997 | 2018-05-03 16:02:05 |
| R34.htm | 5584 | 2018-05-03 16:02:05 |
| R35.htm | 6047 | 2018-05-03 16:02:05 |
| R36.htm | 20240 | 2018-05-03 16:02:05 |
| R37.htm | 12599 | 2018-05-03 16:02:05 |
| R38.htm | 75145 | 2018-05-03 16:02:05 |
| R39.htm | 21835 | 2018-05-03 16:02:05 |
| R4.htm | 52816 | 2018-05-03 16:02:05 |
| R40.htm | 8235 | 2018-05-03 16:02:05 |
| R41.htm | 5759 | 2018-05-03 16:02:05 |
| R42.htm | 4484 | 2018-05-03 16:02:05 |
| R43.htm | 6818 | 2018-05-03 16:02:05 |
| R44.htm | 18290 | 2018-05-03 16:02:05 |
| R45.htm | 64492 | 2018-05-03 16:02:05 |
| R46.htm | 9812 | 2018-05-03 16:02:05 |
| R47.htm | 9479 | 2018-05-03 16:02:05 |
| R48.htm | 16261 | 2018-05-03 16:02:05 |
| R49.htm | 4810 | 2018-05-03 16:02:05 |
| R5.htm | 23479 | 2018-05-03 16:02:05 |
| R50.htm | 25414 | 2018-05-03 16:02:05 |
| R51.htm | 36429 | 2018-05-03 16:02:05 |
| R52.htm | 4585 | 2018-05-03 16:02:05 |
| R53.htm | 38643 | 2018-05-03 16:02:05 |
| R54.htm | 11697 | 2018-05-03 16:02:05 |
| R55.htm | 12080 | 2018-05-03 16:02:05 |
| R56.htm | 23485 | 2018-05-03 16:02:05 |
| R57.htm | 105288 | 2018-05-03 16:02:05 |
| R58.htm | 67583 | 2018-05-03 16:02:05 |
| R59.htm | 95972 | 2018-05-03 16:02:05 |
| R6.htm | 5328 | 2018-05-03 16:02:05 |
| R60.htm | 24405 | 2018-05-03 16:02:05 |
| R7.htm | 44759 | 2018-05-03 16:02:05 |
| R8.htm | 71066 | 2018-05-03 16:02:05 |
| R9.htm | 33365 | 2018-05-03 16:02:05 |
| report.css | 2767 | 2018-05-03 16:02:05 |
| Show.js | 1410 | 2018-05-03 16:02:05 |
| wlk-20180331.xml | 2735792 | 2018-05-03 16:02:05 |
| wlk-20180331.xsd | 44428 | 2018-05-03 16:02:05 |
| wlk-20180331_cal.xml | 87373 | 2018-05-03 16:02:05 |
| wlk-20180331_def.xml | 224928 | 2018-05-03 16:02:05 |
| wlk-20180331_lab.xml | 516555 | 2018-05-03 16:02:05 |
| wlk-20180331_pre.xml | 362337 | 2018-05-03 16:02:05 |