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|---|---|---|
 0001193125-21-078903-index-headers.html | 2021-03-12 10:01:05 | |
| 0001193125-21-078903-index.html | 2021-03-12 10:01:05 | |
| 0001193125-21-078903.txt | 2021-03-12 10:01:05 | |
 0001193125-21-078903-xbrl.zip | 35099 | 2021-03-12 10:01:05 |
| d147702d8k.htm | 35627 | 2021-03-12 10:01:05 |
| d147702d8k_htm.xml | 10047 | 2021-03-12 10:01:05 |
| d147702dex11.htm | 123858 | 2021-03-12 10:01:05 |
| d147702dex231.htm | 2399 | 2021-03-12 10:01:05 |
| FilingSummary.xml | 1865 | 2021-03-12 10:01:05 |
| Financial_Report.xlsx | 5818 | 2021-03-12 10:01:05 |
 g147702g0310002013825.jpg | 2351 | 2021-03-12 10:01:05 |
| MetaLinks.json | 24445 | 2021-03-12 10:01:05 |
| R1.htm | 52650 | 2021-03-12 10:01:05 |
| report.css | 2767 | 2021-03-12 10:01:05 |
| Show.js | 1085 | 2021-03-12 10:01:05 |
| wrb-20210309.xsd | 5311 | 2021-03-12 10:01:05 |
| wrb-20210309_def.xml | 15043 | 2021-03-12 10:01:05 |
| wrb-20210309_lab.xml | 25566 | 2021-03-12 10:01:05 |
| wrb-20210309_pre.xml | 16206 | 2021-03-12 10:01:05 |