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 0000003499-18-000006-index-headers.html | 2018-02-12 08:21:15 | |
| 0000003499-18-000006-index.html | 2018-02-12 08:21:15 | |
| 0000003499-18-000006.txt | 2018-02-12 08:21:15 | |
 0000003499-18-000006-xbrl.zip | 209208 | 2018-02-12 08:21:15 |
| alx-20171231.xml | 1276219 | 2018-02-12 08:21:15 |
| alx-20171231.xsd | 57663 | 2018-02-12 08:21:15 |
| alx-20171231_cal.xml | 63007 | 2018-02-12 08:21:15 |
| alx-20171231_def.xml | 295005 | 2018-02-12 08:21:15 |
| alx-20171231_lab.xml | 706000 | 2018-02-12 08:21:15 |
| alx-20171231_pre.xml | 435052 | 2018-02-12 08:21:15 |
| alx10-k123117.htm | 2119025 | 2018-02-12 08:21:15 |
| exhibit12.htm | 73639 | 2018-02-12 08:21:15 |
| exhibit21.htm | 20437 | 2018-02-12 08:21:15 |
| exhibit23.htm | 2613 | 2018-02-12 08:21:15 |
| exhibit311.htm | 13767 | 2018-02-12 08:21:15 |
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| exhibit321.htm | 8720 | 2018-02-12 08:21:15 |
| exhibit322.htm | 8697 | 2018-02-12 08:21:15 |
| FilingSummary.xml | 33890 | 2018-02-12 08:21:15 |
| Financial_Report.xlsx | 77872 | 2018-02-12 08:21:15 |
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| report.css | 2767 | 2018-02-12 08:21:15 |
| Show.js | 1410 | 2018-02-12 08:21:15 |
 stockperformancecharta04.jpg | 42851 | 2018-02-12 08:21:15 |