Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000003499-24-000015-index-headers.html | 2024-05-06 08:28:14 | |
| 0000003499-24-000015-index.html | 2024-05-06 08:28:14 | |
| 0000003499-24-000015.txt | 2024-05-06 08:28:14 | |
 0000003499-24-000015-xbrl.zip | 198380 | 2024-05-06 08:28:14 |
| a101thirdamendmenttoblplea.htm | 22644 | 2024-05-06 08:28:14 |
| a102fourthamendmenttoblple.htm | 97612 | 2024-05-06 08:28:14 |
| a103fifthamendmenttoblplea.htm | 26925 | 2024-05-06 08:28:14 |
| a104sixthamendmenttoblplea.htm | 36207 | 2024-05-06 08:28:14 |
| a105seventhamendmenttoblpl.htm | 38784 | 2024-05-06 08:28:14 |
| a106eighthamendmenttoblple.htm | 27611 | 2024-05-06 08:28:14 |
| a107ninthamendmenttoblplea.htm | 284186 | 2024-05-06 08:28:14 |
| alx-20240331.htm | 585449 | 2024-05-06 08:28:14 |
| alx-20240331.xsd | 33012 | 2024-05-06 08:28:14 |
| alx-20240331_cal.xml | 40494 | 2024-05-06 08:28:14 |
| alx-20240331_def.xml | 158556 | 2024-05-06 08:28:14 |
| alx-20240331_htm.xml | 377055 | 2024-05-06 08:28:14 |
| alx-20240331_lab.xml | 342941 | 2024-05-06 08:28:14 |
| alx-20240331_pre.xml | 253554 | 2024-05-06 08:28:14 |
| exhibit151-10q33124.htm | 2481 | 2024-05-06 08:28:14 |
| exhibit311-10q33124.htm | 8781 | 2024-05-06 08:28:14 |
| exhibit312-10q33124.htm | 8755 | 2024-05-06 08:28:14 |
| exhibit321-10q33124.htm | 4958 | 2024-05-06 08:28:14 |
| exhibit322-10q33124.htm | 4932 | 2024-05-06 08:28:14 |
| FilingSummary.xml | 23269 | 2024-05-06 08:28:14 |
| Financial_Report.xlsx | 54096 | 2024-05-06 08:28:14 |
| MetaLinks.json | 487657 | 2024-05-06 08:28:14 |
| R1.htm | 50160 | 2024-05-06 08:28:14 |
| R10.htm | 4142 | 2024-05-06 08:28:14 |
| R11.htm | 5832 | 2024-05-06 08:28:14 |
| R12.htm | 6490 | 2024-05-06 08:28:14 |
| R13.htm | 16349 | 2024-05-06 08:28:14 |
| R14.htm | 25493 | 2024-05-06 08:28:14 |
| R15.htm | 22951 | 2024-05-06 08:28:14 |
| R16.htm | 23149 | 2024-05-06 08:28:14 |
| R17.htm | 53015 | 2024-05-06 08:28:14 |
| R18.htm | 9755 | 2024-05-06 08:28:14 |
| R19.htm | 14773 | 2024-05-06 08:28:14 |
| R2.htm | 94972 | 2024-05-06 08:28:14 |
| R20.htm | 13795 | 2024-05-06 08:28:14 |
| R21.htm | 22518 | 2024-05-06 08:28:14 |
| R22.htm | 14586 | 2024-05-06 08:28:14 |
| R23.htm | 26394 | 2024-05-06 08:28:14 |
| R24.htm | 51620 | 2024-05-06 08:28:14 |
| R25.htm | 14201 | 2024-05-06 08:28:14 |
| R26.htm | 4029 | 2024-05-06 08:28:14 |
| R27.htm | 4491 | 2024-05-06 08:28:14 |
| R28.htm | 24422 | 2024-05-06 08:28:14 |
| R29.htm | 9449 | 2024-05-06 08:28:14 |
| R3.htm | 25757 | 2024-05-06 08:28:14 |
| R30.htm | 35568 | 2024-05-06 08:28:14 |
| R31.htm | 66204 | 2024-05-06 08:28:14 |
| R32.htm | 13865 | 2024-05-06 08:28:14 |
| R33.htm | 37202 | 2024-05-06 08:28:14 |
| R34.htm | 13078 | 2024-05-06 08:28:14 |
| R35.htm | 33429 | 2024-05-06 08:28:14 |
| R36.htm | 14185 | 2024-05-06 08:28:14 |
| R37.htm | 26049 | 2024-05-06 08:28:14 |
| R38.htm | 4731 | 2024-05-06 08:28:14 |
| R39.htm | 32310 | 2024-05-06 08:28:14 |
| R4.htm | 54278 | 2024-05-06 08:28:14 |
| R5.htm | 6932 | 2024-05-06 08:28:14 |
| R6.htm | 22505 | 2024-05-06 08:28:14 |
| R7.htm | 33811 | 2024-05-06 08:28:14 |
| R8.htm | 4448 | 2024-05-06 08:28:14 |
| R9.htm | 82056 | 2024-05-06 08:28:14 |
| report.css | 2767 | 2024-05-06 08:28:14 |
| Show.js | 1085 | 2024-05-06 08:28:14 |