Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000003499-17-000010-index-headers.html | 2017-05-01 08:31:35 | |
| 0000003499-17-000010-index.html | 2017-05-01 08:31:35 | |
| 0000003499-17-000010.txt | 2017-05-01 08:31:35 | |
 0000003499-17-000010-xbrl.zip | 141832 | 2017-05-01 08:31:35 |
| alx-20170331.xml | 593295 | 2017-05-01 08:31:35 |
| alx-20170331.xsd | 63384 | 2017-05-01 08:31:35 |
| alx-20170331_cal.xml | 66516 | 2017-05-01 08:31:35 |
| alx-20170331_def.xml | 342463 | 2017-05-01 08:31:35 |
| alx-20170331_lab.xml | 600911 | 2017-05-01 08:31:35 |
| alx-20170331_pre.xml | 530710 | 2017-05-01 08:31:35 |
| alx20171Q.htm | 1167932 | 2017-05-01 08:31:35 |
| exhibit151.htm | 4667 | 2017-05-01 08:31:35 |
| exhibit311.htm | 10732 | 2017-05-01 08:31:35 |
| exhibit312.htm | 10767 | 2017-05-01 08:31:35 |
| exhibit321.htm | 8477 | 2017-05-01 08:31:35 |
| exhibit322.htm | 8656 | 2017-05-01 08:31:35 |
| FilingSummary.xml | 22372 | 2017-05-01 08:31:35 |
| Financial_Report.xlsx | 44975 | 2017-05-01 08:31:35 |
| R1.htm | 27141 | 2017-05-01 08:31:35 |
| R10.htm | 6312 | 2017-05-01 08:31:35 |
| R11.htm | 7774 | 2017-05-01 08:31:35 |
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| R17.htm | 60947 | 2017-05-01 08:31:35 |
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| R19.htm | 21752 | 2017-05-01 08:31:35 |
| R2.htm | 78020 | 2017-05-01 08:31:35 |
| R20.htm | 49765 | 2017-05-01 08:31:35 |
| R21.htm | 19275 | 2017-05-01 08:31:35 |
| R22.htm | 59662 | 2017-05-01 08:31:35 |
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| R27.htm | 5650 | 2017-05-01 08:31:35 |
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| R32.htm | 47104 | 2017-05-01 08:31:35 |
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| R4.htm | 40273 | 2017-05-01 08:31:35 |
| R5.htm | 6348 | 2017-05-01 08:31:35 |
| R6.htm | 16056 | 2017-05-01 08:31:35 |
| R7.htm | 30722 | 2017-05-01 08:31:35 |
| R8.htm | 66648 | 2017-05-01 08:31:35 |
| R9.htm | 5285 | 2017-05-01 08:31:35 |
| report.css | 2767 | 2017-05-01 08:31:35 |
| Show.js | 1410 | 2017-05-01 08:31:35 |