Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001589526-25-000100-index-headers.html | 2025-11-24 16:32:23 | |
| 0001589526-25-000100-index.html | 2025-11-24 16:32:23 | |
| 0001589526-25-000100.txt | 2025-11-24 16:32:23 | |
 0001589526-25-000100-xbrl.zip | 603088 | 2025-11-24 16:32:23 |
| a10-k2025ex211subsidiaries.htm | 9053 | 2025-11-24 16:32:23 |
| a10-k2025ex231bdoconsent.htm | 2691 | 2025-11-24 16:32:23 |
| a2025ex1018bluebirdformind.htm | 149164 | 2025-11-24 16:32:23 |
| a2025ex311ceo302certificat.htm | 11609 | 2025-11-24 16:32:23 |
| a2025ex312cfo302certificat.htm | 11366 | 2025-11-24 16:32:23 |
| a2025ex321ceo906certificat.htm | 7653 | 2025-11-24 16:32:23 |
| a2025ex322cfo906certificat.htm | 7393 | 2025-11-24 16:32:23 |
| a2025ex45descriptionofsecu.htm | 21428 | 2025-11-24 16:32:23 |
| blbd-20250927.htm | 2009716 | 2025-11-24 16:32:23 |
| blbd-20250927.xsd | 64684 | 2025-11-24 16:32:23 |
| blbd-20250927_cal.xml | 118641 | 2025-11-24 16:32:23 |
| blbd-20250927_def.xml | 324512 | 2025-11-24 16:32:23 |
 blbd-20250927_g1.jpg | 130721 | 2025-11-24 16:32:23 |
 blbd-20250927_g2.jpg | 128075 | 2025-11-24 16:32:23 |
| blbd-20250927_htm.xml | 1718493 | 2025-11-24 16:32:23 |
| blbd-20250927_lab.xml | 899083 | 2025-11-24 16:32:23 |
| blbd-20250927_pre.xml | 669301 | 2025-11-24 16:32:23 |
| FilingSummary.xml | 60455 | 2025-11-24 16:32:23 |
| MetaLinks.json | 1304644 | 2025-11-24 16:32:23 |
| R1.htm | 66331 | 2025-11-24 16:32:23 |
| R10.htm | 56282 | 2025-11-24 16:32:23 |
| R100.htm | 13045 | 2025-11-24 16:32:23 |
| R101.htm | 15042 | 2025-11-24 16:32:23 |
| R11.htm | 39134 | 2025-11-24 16:32:23 |
| R12.htm | 11287 | 2025-11-24 16:32:23 |
| R13.htm | 20069 | 2025-11-24 16:32:23 |
| R14.htm | 21416 | 2025-11-24 16:32:23 |
| R15.htm | 32492 | 2025-11-24 16:32:23 |
| R16.htm | 40846 | 2025-11-24 16:32:23 |
| R17.htm | 92005 | 2025-11-24 16:32:23 |
| R18.htm | 66995 | 2025-11-24 16:32:23 |
| R19.htm | 56737 | 2025-11-24 16:32:23 |
| R2.htm | 7772 | 2025-11-24 16:32:23 |
| R20.htm | 19963 | 2025-11-24 16:32:23 |
| R21.htm | 16167 | 2025-11-24 16:32:23 |
| R22.htm | 26459 | 2025-11-24 16:32:23 |
| R23.htm | 43890 | 2025-11-24 16:32:23 |
| R24.htm | 105573 | 2025-11-24 16:32:23 |
| R25.htm | 38161 | 2025-11-24 16:32:23 |
| R26.htm | 26931 | 2025-11-24 16:32:23 |
| R27.htm | 16183 | 2025-11-24 16:32:23 |
| R28.htm | 24772 | 2025-11-24 16:32:23 |
| R29.htm | 20271 | 2025-11-24 16:32:23 |
| R3.htm | 134777 | 2025-11-24 16:32:23 |
| R30.htm | 4371 | 2025-11-24 16:32:23 |
| R31.htm | 47856 | 2025-11-24 16:32:23 |
| R32.htm | 108908 | 2025-11-24 16:32:23 |
| R33.htm | 21789 | 2025-11-24 16:32:23 |
| R34.htm | 40805 | 2025-11-24 16:32:23 |
| R35.htm | 12094 | 2025-11-24 16:32:23 |
| R36.htm | 21766 | 2025-11-24 16:32:23 |
| R37.htm | 21906 | 2025-11-24 16:32:23 |
| R38.htm | 56763 | 2025-11-24 16:32:23 |
| R39.htm | 29760 | 2025-11-24 16:32:23 |
| R4.htm | 19522 | 2025-11-24 16:32:23 |
| R40.htm | 88190 | 2025-11-24 16:32:23 |
| R41.htm | 81119 | 2025-11-24 16:32:23 |
| R42.htm | 52367 | 2025-11-24 16:32:23 |
| R43.htm | 16811 | 2025-11-24 16:32:23 |
| R44.htm | 25868 | 2025-11-24 16:32:23 |
| R45.htm | 40513 | 2025-11-24 16:32:23 |
| R46.htm | 95198 | 2025-11-24 16:32:23 |
| R47.htm | 25636 | 2025-11-24 16:32:23 |
| R48.htm | 26119 | 2025-11-24 16:32:23 |
| R49.htm | 36709 | 2025-11-24 16:32:23 |
| R5.htm | 102877 | 2025-11-24 16:32:23 |
| R50.htm | 17373 | 2025-11-24 16:32:23 |
| R51.htm | 9496 | 2025-11-24 16:32:23 |
| R52.htm | 9605 | 2025-11-24 16:32:23 |
| R53.htm | 8943 | 2025-11-24 16:32:23 |
| R54.htm | 8001 | 2025-11-24 16:32:23 |
| R55.htm | 8690 | 2025-11-24 16:32:23 |
| R56.htm | 11800 | 2025-11-24 16:32:23 |
| R57.htm | 11820 | 2025-11-24 16:32:23 |
| R58.htm | 31961 | 2025-11-24 16:32:23 |
| R59.htm | 26756 | 2025-11-24 16:32:23 |
| R6.htm | 28319 | 2025-11-24 16:32:23 |
| R60.htm | 37882 | 2025-11-24 16:32:23 |
| R61.htm | 27180 | 2025-11-24 16:32:23 |
| R62.htm | 5091 | 2025-11-24 16:32:23 |
| R63.htm | 93839 | 2025-11-24 16:32:23 |
| R64.htm | 28193 | 2025-11-24 16:32:23 |
| R65.htm | 24773 | 2025-11-24 16:32:23 |
| R66.htm | 17782 | 2025-11-24 16:32:23 |
| R67.htm | 29702 | 2025-11-24 16:32:23 |
| R68.htm | 19378 | 2025-11-24 16:32:23 |
| R69.htm | 33778 | 2025-11-24 16:32:23 |
| R7.htm | 112638 | 2025-11-24 16:32:23 |
| R70.htm | 7809 | 2025-11-24 16:32:23 |
| R71.htm | 44610 | 2025-11-24 16:32:23 |
| R72.htm | 15721 | 2025-11-24 16:32:23 |
| R73.htm | 13731 | 2025-11-24 16:32:23 |
| R74.htm | 28476 | 2025-11-24 16:32:23 |
| R75.htm | 23093 | 2025-11-24 16:32:23 |
| R76.htm | 7094 | 2025-11-24 16:32:23 |
| R77.htm | 13380 | 2025-11-24 16:32:23 |
| R78.htm | 10138 | 2025-11-24 16:32:23 |
| R79.htm | 43482 | 2025-11-24 16:32:23 |
| R8.htm | 92426 | 2025-11-24 16:32:23 |
| R80.htm | 42499 | 2025-11-24 16:32:23 |
| R81.htm | 19899 | 2025-11-24 16:32:23 |
| R82.htm | 29682 | 2025-11-24 16:32:23 |
| R83.htm | 56328 | 2025-11-24 16:32:23 |
| R84.htm | 34798 | 2025-11-24 16:32:23 |
| R85.htm | 25891 | 2025-11-24 16:32:23 |
| R86.htm | 40536 | 2025-11-24 16:32:23 |
| R87.htm | 28730 | 2025-11-24 16:32:23 |
| R88.htm | 36378 | 2025-11-24 16:32:23 |
| R89.htm | 14663 | 2025-11-24 16:32:23 |
| R9.htm | 14770 | 2025-11-24 16:32:23 |
| R90.htm | 18894 | 2025-11-24 16:32:23 |
| R91.htm | 21794 | 2025-11-24 16:32:23 |
| R92.htm | 32537 | 2025-11-24 16:32:23 |
| R93.htm | 47448 | 2025-11-24 16:32:23 |
| R94.htm | 15477 | 2025-11-24 16:32:23 |
| R95.htm | 14382 | 2025-11-24 16:32:23 |
| R96.htm | 15453 | 2025-11-24 16:32:23 |
| R97.htm | 44845 | 2025-11-24 16:32:23 |
| R98.htm | 105510 | 2025-11-24 16:32:23 |
| R99.htm | 28485 | 2025-11-24 16:32:23 |
| report.css | 2768 | 2025-11-24 16:32:23 |
| Show.js | 1086 | 2025-11-24 16:32:23 |