Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950170-24-048746-index-headers.html | 2024-04-26 11:10:04 | |
| 0000950170-24-048746-index.html | 2024-04-26 11:10:04 | |
| 0000950170-24-048746.txt | 2024-04-26 11:10:04 | |
 0000950170-24-048746-xbrl.zip | 7533 | 2024-04-26 11:10:04 |
| bkh-20240423.htm | 54087 | 2024-04-26 11:10:04 |
| bkh-20240423.xsd | 23915 | 2024-04-26 11:10:04 |
| bkh-20240423_htm.xml | 4517 | 2024-04-26 11:10:04 |
| FilingSummary.xml | 1666 | 2024-04-26 11:10:04 |
| Financial_Report.xlsx | 5700 | 2024-04-26 11:10:04 |
| MetaLinks.json | 17516 | 2024-04-26 11:10:04 |
| R1.htm | 38109 | 2024-04-26 11:10:04 |
| report.css | 2766 | 2024-04-26 11:10:04 |
| Show.js | 1084 | 2024-04-26 11:10:04 |