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|---|---|---|
 0000003499-20-000015-index-headers.html | 2020-05-04 08:17:32 | |
| 0000003499-20-000015-index.html | 2020-05-04 08:17:32 | |
| 0000003499-20-000015.txt | 2020-05-04 08:17:32 | |
 0000003499-20-000015-xbrl.zip | 207206 | 2020-05-04 08:17:32 |
| alx-20200331.xsd | 38789 | 2020-05-04 08:17:32 |
| alx-20200331_cal.xml | 50344 | 2020-05-04 08:17:32 |
| alx-20200331_def.xml | 169807 | 2020-05-04 08:17:32 |
| alx-20200331_lab.xml | 460975 | 2020-05-04 08:17:32 |
| alx-20200331_pre.xml | 279592 | 2020-05-04 08:17:32 |
| alx10-q33120.htm | 843863 | 2020-05-04 08:17:32 |
| alx10-q33120_htm.xml | 528683 | 2020-05-04 08:17:32 |
| exhibit101.htm | 82792 | 2020-05-04 08:17:32 |
| exhibit102.htm | 24429 | 2020-05-04 08:17:32 |
| exhibit103.htm | 230667 | 2020-05-04 08:17:32 |
| exhibit15.htm | 2980 | 2020-05-04 08:17:32 |
| exhibit311.htm | 13523 | 2020-05-04 08:17:32 |
| exhibit312.htm | 13533 | 2020-05-04 08:17:32 |
| exhibit321.htm | 6013 | 2020-05-04 08:17:32 |
| exhibit322.htm | 5868 | 2020-05-04 08:17:32 |
| FilingSummary.xml | 25821 | 2020-05-04 08:17:32 |
| Financial_Report.xlsx | 48105 | 2020-05-04 08:17:32 |
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| R1.htm | 52226 | 2020-05-04 08:17:32 |
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| report.css | 2767 | 2020-05-04 08:17:32 |
| Show.js | 1085 | 2020-05-04 08:17:32 |