Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001683863-21-005104-index-headers.html | 2021-09-20 09:01:58 | |
| 0001683863-21-005104-index.html | 2021-09-20 09:01:58 | |
| 0001683863-21-005104.txt | 2021-09-20 09:01:58 | |
 0001683863-21-005104-xbrl.zip | 453981 | 2021-09-20 09:01:58 |
 dsco-codeofethics11x1.jpg | 729 | 2021-09-20 09:01:58 |
 dsco-codeofethics7x1.jpg | 729 | 2021-09-20 09:01:58 |
| f9637d1.htm | 1161632 | 2021-09-20 09:01:58 |
| f9637d2.htm | 1550 | 2021-09-20 09:01:58 |
| f9637d3.htm | 244903 | 2021-09-20 09:01:58 |
| f9637d4.htm | 73506 | 2021-09-20 09:01:58 |
| FilingSummary.xml | 11421 | 2021-09-20 09:01:58 |
| Financial_Report.xlsx | 37403 | 2021-09-20 09:01:58 |
 flag.gif | 395 | 2021-09-20 09:01:58 |
 ghj1yd8ctmicg19n32e8w.jpg | 18003 | 2021-09-20 09:01:58 |
 ida2015_7.jpg | 7711 | 2021-09-20 09:01:58 |
 ida4415_7.jpg | 7726 | 2021-09-20 09:01:58 |
| MetaLinks.json | 335726 | 2021-09-20 09:01:58 |
| R1.htm | 18244 | 2021-09-20 09:01:58 |
| R10.htm | 56322 | 2021-09-20 09:01:58 |
| R11.htm | 10390 | 2021-09-20 09:01:58 |
| R12.htm | 14262 | 2021-09-20 09:01:58 |
| R13.htm | 1427 | 2021-09-20 09:01:58 |
| R14.htm | 1998 | 2021-09-20 09:01:58 |
| R15.htm | 3763 | 2021-09-20 09:01:58 |
| R16.htm | 166474 | 2021-09-20 09:01:58 |
| R17.htm | 3945 | 2021-09-20 09:01:58 |
| R2.htm | 54968 | 2021-09-20 09:01:58 |
| R3.htm | 16558 | 2021-09-20 09:01:58 |
| R4.htm | 14277 | 2021-09-20 09:01:58 |
| R5.htm | 1435 | 2021-09-20 09:01:58 |
| R6.htm | 1449 | 2021-09-20 09:01:58 |
| R7.htm | 2009 | 2021-09-20 09:01:58 |
| R8.htm | 3369 | 2021-09-20 09:01:58 |
| R9.htm | 175499 | 2021-09-20 09:01:58 |
| report.css | 2767 | 2021-09-20 09:01:58 |
| Show.js | 1085 | 2021-09-20 09:01:58 |
 vanguard_2.jpg | 4938 | 2021-09-20 09:01:58 |
 vg_mcp4-52115x1.jpg | 729 | 2021-09-20 09:01:58 |
 vg_mcp4-52116x1.jpg | 729 | 2021-09-20 09:01:58 |
 vg_mcp4-5215x1.jpg | 729 | 2021-09-20 09:01:58 |
| whitehall-20210920.htm | 3304464 | 2021-09-20 09:01:58 |
| whitehall-20210920.xsd | 15987 | 2021-09-20 09:01:58 |
| whitehall-20210920_cal.xml | 4725 | 2021-09-20 09:01:58 |
| whitehall-20210920_def.xml | 415879 | 2021-09-20 09:01:58 |
| whitehall-20210920_htm.xml | 86149 | 2021-09-20 09:01:58 |
| whitehall-20210920_lab.xml | 166452 | 2021-09-20 09:01:58 |
| whitehall-20210920_pre.xml | 319223 | 2021-09-20 09:01:58 |