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|---|---|---|
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| 0000825313-21-000021-index.html | 2021-04-29 06:33:24 | |
| 0000825313-21-000021.txt | 2021-04-29 06:33:24 | |
 0000825313-21-000021-xbrl.zip | 190183 | 2021-04-29 06:33:24 |
| ab-20210331.htm | 577715 | 2021-04-29 06:33:24 |
| ab-20210331.xsd | 18926 | 2021-04-29 06:33:24 |
| ab-20210331xex311.htm | 10163 | 2021-04-29 06:33:24 |
| ab-20210331xex312.htm | 11593 | 2021-04-29 06:33:24 |
| ab-20210331xex321.htm | 6336 | 2021-04-29 06:33:24 |
| ab-20210331xex322.htm | 6658 | 2021-04-29 06:33:24 |
| ab-20210331_cal.xml | 39129 | 2021-04-29 06:33:24 |
| ab-20210331_def.xml | 46724 | 2021-04-29 06:33:24 |
| ab-20210331_htm.xml | 352607 | 2021-04-29 06:33:24 |
| ab-20210331_lab.xml | 256268 | 2021-04-29 06:33:24 |
| ab-20210331_pre.xml | 150705 | 2021-04-29 06:33:24 |
| abhq12021ex991.htm | 1525990 | 2021-04-29 06:33:24 |
| FilingSummary.xml | 17268 | 2021-04-29 06:33:24 |
| Financial_Report.xlsx | 36938 | 2021-04-29 06:33:24 |
| MetaLinks.json | 246919 | 2021-04-29 06:33:24 |
| R1.htm | 50918 | 2021-04-29 06:33:24 |
| R10.htm | 19800 | 2021-04-29 06:33:24 |
| R11.htm | 27067 | 2021-04-29 06:33:24 |
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| R3.htm | 10468 | 2021-04-29 06:33:24 |
| R4.htm | 23781 | 2021-04-29 06:33:24 |
| R5.htm | 44610 | 2021-04-29 06:33:24 |
| R6.htm | 38990 | 2021-04-29 06:33:24 |
| R7.htm | 50204 | 2021-04-29 06:33:24 |
| R8.htm | 20225 | 2021-04-29 06:33:24 |
| R9.htm | 5346 | 2021-04-29 06:33:24 |
| report.css | 2767 | 2021-04-29 06:33:24 |
| Show.js | 1085 | 2021-04-29 06:33:24 |