Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000003499-21-000015-index-headers.html | 2021-05-20 16:17:17 | |
| 0000003499-21-000015-index.html | 2021-05-20 16:17:17 | |
| 0000003499-21-000015.txt | 2021-05-20 16:17:17 | |
 0000003499-21-000015-xbrl.zip | 11790 | 2021-05-20 16:17:17 |
| alx-20210520.htm | 50621 | 2021-05-20 16:17:17 |
| alx-20210520.xsd | 1980 | 2021-05-20 16:17:17 |
| alx-20210520_htm.xml | 10989 | 2021-05-20 16:17:17 |
| alx-20210520_lab.xml | 24275 | 2021-05-20 16:17:17 |
| alx-20210520_pre.xml | 12712 | 2021-05-20 16:17:17 |
| FilingSummary.xml | 1668 | 2021-05-20 16:17:17 |
| Financial_Report.xlsx | 5662 | 2021-05-20 16:17:17 |
| MetaLinks.json | 17635 | 2021-05-20 16:17:17 |
| R1.htm | 38612 | 2021-05-20 16:17:17 |
| report.css | 2766 | 2021-05-20 16:17:17 |
| Show.js | 1084 | 2021-05-20 16:17:17 |