Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000733076-23-000006-index-headers.html | 2023-05-11 16:09:45 | |
| 0000733076-23-000006-index.html | 2023-05-11 16:09:45 | |
| 0000733076-23-000006.txt | 2023-05-11 16:09:45 | |
 0000733076-23-000006-xbrl.zip | 689702 | 2023-05-11 16:09:45 |
| bhl-20230331.htm | 5082330 | 2023-05-11 16:09:45 |
| bhl-20230331.xsd | 82757 | 2023-05-11 16:09:45 |
| bhl-20230331_cal.xml | 59911 | 2023-05-11 16:09:45 |
| bhl-20230331_def.xml | 623886 | 2023-05-11 16:09:45 |
 bhl-20230331_g1.jpg | 86397 | 2023-05-11 16:09:45 |
| bhl-20230331_htm.xml | 7193481 | 2023-05-11 16:09:45 |
| bhl-20230331_lab.xml | 1093960 | 2023-05-11 16:09:45 |
| bhl-20230331_pre.xml | 842660 | 2023-05-11 16:09:45 |
| blic03312023-ex311.htm | 8713 | 2023-05-11 16:09:45 |
| blic03312023-ex312.htm | 8924 | 2023-05-11 16:09:45 |
| blic03312023-ex321.htm | 4451 | 2023-05-11 16:09:45 |
| blic03312023-ex322.htm | 4481 | 2023-05-11 16:09:45 |
| FilingSummary.xml | 74121 | 2023-05-11 16:09:45 |
| Financial_Report.xlsx | 218637 | 2023-05-11 16:09:45 |
| MetaLinks.json | 1304264 | 2023-05-11 16:09:45 |
| R1.htm | 46706 | 2023-05-11 16:09:45 |
| R10.htm | 103114 | 2023-05-11 16:09:45 |
| R100.htm | 27022 | 2023-05-11 16:09:45 |
| R11.htm | 554256 | 2023-05-11 16:09:45 |
| R12.htm | 135307 | 2023-05-11 16:09:45 |
| R13.htm | 461941 | 2023-05-11 16:09:45 |
| R14.htm | 181374 | 2023-05-11 16:09:45 |
| R15.htm | 378263 | 2023-05-11 16:09:45 |
| R16.htm | 10424 | 2023-05-11 16:09:45 |
| R17.htm | 101623 | 2023-05-11 16:09:45 |
| R18.htm | 22089 | 2023-05-11 16:09:45 |
| R19.htm | 25546 | 2023-05-11 16:09:45 |
| R2.htm | 125521 | 2023-05-11 16:09:45 |
| R20.htm | 36595 | 2023-05-11 16:09:45 |
| R21.htm | 79907 | 2023-05-11 16:09:45 |
| R22.htm | 135213 | 2023-05-11 16:09:45 |
| R23.htm | 92650 | 2023-05-11 16:09:45 |
| R24.htm | 566254 | 2023-05-11 16:09:45 |
| R25.htm | 239498 | 2023-05-11 16:09:45 |
| R26.htm | 461544 | 2023-05-11 16:09:45 |
| R27.htm | 262968 | 2023-05-11 16:09:45 |
| R28.htm | 359417 | 2023-05-11 16:09:45 |
| R29.htm | 98132 | 2023-05-11 16:09:45 |
| R3.htm | 25173 | 2023-05-11 16:09:45 |
| R30.htm | 18651 | 2023-05-11 16:09:45 |
| R31.htm | 28686 | 2023-05-11 16:09:45 |
| R32.htm | 52098 | 2023-05-11 16:09:45 |
| R33.htm | 69534 | 2023-05-11 16:09:45 |
| R34.htm | 62794 | 2023-05-11 16:09:45 |
| R35.htm | 27811 | 2023-05-11 16:09:45 |
| R36.htm | 60381 | 2023-05-11 16:09:45 |
| R37.htm | 65829 | 2023-05-11 16:09:45 |
| R38.htm | 46073 | 2023-05-11 16:09:45 |
| R39.htm | 81162 | 2023-05-11 16:09:45 |
| R4.htm | 82092 | 2023-05-11 16:09:45 |
| R40.htm | 22580 | 2023-05-11 16:09:45 |
| R41.htm | 20330 | 2023-05-11 16:09:45 |
| R42.htm | 4301 | 2023-05-11 16:09:45 |
| R43.htm | 136001 | 2023-05-11 16:09:45 |
| R44.htm | 44084 | 2023-05-11 16:09:45 |
| R45.htm | 29990 | 2023-05-11 16:09:45 |
| R46.htm | 54294 | 2023-05-11 16:09:45 |
| R47.htm | 12307 | 2023-05-11 16:09:45 |
| R48.htm | 101978 | 2023-05-11 16:09:45 |
| R49.htm | 47991 | 2023-05-11 16:09:45 |
| R5.htm | 5182 | 2023-05-11 16:09:45 |
| R50.htm | 34487 | 2023-05-11 16:09:45 |
| R51.htm | 11711 | 2023-05-11 16:09:45 |
| R52.htm | 14041 | 2023-05-11 16:09:45 |
| R53.htm | 35403 | 2023-05-11 16:09:45 |
| R54.htm | 44374 | 2023-05-11 16:09:45 |
| R55.htm | 13032 | 2023-05-11 16:09:45 |
| R56.htm | 15127 | 2023-05-11 16:09:45 |
| R57.htm | 47155 | 2023-05-11 16:09:45 |
| R58.htm | 33032 | 2023-05-11 16:09:45 |
| R59.htm | 50325 | 2023-05-11 16:09:45 |
| R6.htm | 43890 | 2023-05-11 16:09:45 |
| R60.htm | 31072 | 2023-05-11 16:09:45 |
| R61.htm | 19155 | 2023-05-11 16:09:45 |
| R62.htm | 81994 | 2023-05-11 16:09:45 |
| R63.htm | 42423 | 2023-05-11 16:09:45 |
| R64.htm | 13082 | 2023-05-11 16:09:45 |
| R65.htm | 15975 | 2023-05-11 16:09:45 |
| R66.htm | 12178 | 2023-05-11 16:09:45 |
| R67.htm | 13522 | 2023-05-11 16:09:45 |
| R68.htm | 33828 | 2023-05-11 16:09:45 |
| R69.htm | 9919 | 2023-05-11 16:09:45 |
| R7.htm | 64009 | 2023-05-11 16:09:45 |
| R70.htm | 23535 | 2023-05-11 16:09:45 |
| R71.htm | 23183 | 2023-05-11 16:09:45 |
| R72.htm | 13009 | 2023-05-11 16:09:45 |
| R73.htm | 11465 | 2023-05-11 16:09:45 |
| R74.htm | 22137 | 2023-05-11 16:09:45 |
| R75.htm | 19059 | 2023-05-11 16:09:45 |
| R76.htm | 5881 | 2023-05-11 16:09:45 |
| R77.htm | 6385 | 2023-05-11 16:09:45 |
| R78.htm | 11560 | 2023-05-11 16:09:45 |
| R79.htm | 8268 | 2023-05-11 16:09:45 |
| R8.htm | 39930 | 2023-05-11 16:09:45 |
| R80.htm | 9918 | 2023-05-11 16:09:45 |
| R81.htm | 50956 | 2023-05-11 16:09:45 |
| R82.htm | 66384 | 2023-05-11 16:09:45 |
| R83.htm | 20521 | 2023-05-11 16:09:45 |
| R84.htm | 34813 | 2023-05-11 16:09:45 |
| R85.htm | 9840 | 2023-05-11 16:09:45 |
| R86.htm | 6547 | 2023-05-11 16:09:45 |
| R87.htm | 137318 | 2023-05-11 16:09:45 |
| R88.htm | 31361 | 2023-05-11 16:09:45 |
| R89.htm | 91672 | 2023-05-11 16:09:45 |
| R9.htm | 146011 | 2023-05-11 16:09:45 |
| R90.htm | 47323 | 2023-05-11 16:09:45 |
| R91.htm | 16344 | 2023-05-11 16:09:45 |
| R92.htm | 52016 | 2023-05-11 16:09:45 |
| R93.htm | 47584 | 2023-05-11 16:09:45 |
| R94.htm | 3899 | 2023-05-11 16:09:45 |
| R95.htm | 19747 | 2023-05-11 16:09:45 |
| R96.htm | 7356 | 2023-05-11 16:09:45 |
| R97.htm | 23597 | 2023-05-11 16:09:45 |
| R98.htm | 15324 | 2023-05-11 16:09:45 |
| R99.htm | 18464 | 2023-05-11 16:09:45 |
| report.css | 2768 | 2023-05-11 16:09:45 |
| Show.js | 1086 | 2023-05-11 16:09:45 |