Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950170-25-014567-index-headers.html | 2025-02-05 16:33:24 | |
| 0000950170-25-014567-index.html | 2025-02-05 16:33:24 | |
| 0000950170-25-014567.txt | 2025-02-05 16:33:24 | |
 0000950170-25-014567-xbrl.zip | 36522 | 2025-02-05 16:33:24 |
| bkh-20250205.htm | 45360 | 2025-02-05 16:33:24 |
| bkh-20250205.xsd | 27437 | 2025-02-05 16:33:24 |
| bkh-20250205_htm.xml | 4517 | 2025-02-05 16:33:24 |
| bkh-ex99.htm | 925301 | 2025-02-05 16:33:24 |
| FilingSummary.xml | 1670 | 2025-02-05 16:33:24 |
| Financial_Report.xlsx | 5702 | 2025-02-05 16:33:24 |
 img129363028_0.jpg | 115169 | 2025-02-05 16:33:24 |
| MetaLinks.json | 18864 | 2025-02-05 16:33:24 |
| R1.htm | 38107 | 2025-02-05 16:33:24 |
| report.css | 2766 | 2025-02-05 16:33:24 |
| Show.js | 1084 | 2025-02-05 16:33:24 |