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| 0001212545-22-000090-index.html | 2022-02-25 16:59:40 | |
| 0001212545-22-000090.txt | 2022-02-25 16:59:40 | |
 0001212545-22-000090-xbrl.zip | 1015197 | 2022-02-25 16:59:40 |
| ex211listofsubsidiaries123.htm | 24961 | 2022-02-25 16:59:40 |
| ex231consent12312021.htm | 2767 | 2022-02-25 16:59:40 |
| FilingSummary.xml | 71312 | 2022-02-25 16:59:40 |
| Financial_Report.xlsx | 246580 | 2022-02-25 16:59:40 |
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| R1.htm | 71778 | 2022-02-25 16:59:40 |
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| R9999.htm | 50743 | 2022-02-25 16:59:40 |
| report.css | 2768 | 2022-02-25 16:59:40 |
| Show.js | 1086 | 2022-02-25 16:59:40 |
| wal-20211231.htm | 8107921 | 2022-02-25 16:59:40 |
| wal-20211231.xsd | 126196 | 2022-02-25 16:59:40 |
| wal-20211231_cal.xml | 63999 | 2022-02-25 16:59:40 |
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 wal-20211231_g1.jpg | 104148 | 2022-02-25 16:59:40 |
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| walex31112312021.htm | 11668 | 2022-02-25 16:59:40 |
| walex31212312021.htm | 12296 | 2022-02-25 16:59:40 |
| walex3212312021.htm | 9526 | 2022-02-25 16:59:40 |
| walex41-descriptionofregis.htm | 103783 | 2022-02-25 16:59:40 |